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120-905: The Chevrolet Volt is a plug-in hybrid and extended-range electric vehicle car that was manufactured by General Motors , and also marketed in rebadged variants as the Holden Volt in Australia and New Zealand and the Buick Velite 5 in China, and with a different fascia as the Vauxhall Ampera in the United Kingdom and as the Opel Ampera in the remainder of Europe. Volt production ended in February 2019. Sales of

240-502: A series hybrid is propelled by electric motors only, a parallel hybrid is propelled both by its internal combustion engine and by electric motors operating concurrently, and a series-parallel hybrid operates in either mode. While a plain hybrid vehicle charges its battery from its engine only, a plug-in hybrid can obtain a significant amount of the energy required to recharge its battery from external sources. These contain two different energy recovery systems. The Mercedes-AMG ONE

360-399: A 1.5-liter engine that uses regular gasoline; the 18.4 kWh battery pack had new chemistry that stored 20% more electrical energy using fewer cells, 192 compared with 288 on the 2014 Volt. It had a new power controller that was integrated with the motor housing; the electric motors weighed 100 lb (45 kg) less and used smaller amounts of rare earth metals . GM engineers explained that

480-471: A PHEV's battery pack is smaller than that of all-electric vehicles of the same weight, as it must accommodate its combustion engine and hybrid drivetrain , it provides the added flexibility of reverting to the use of its gasoline / diesel engine , akin to a conventional HEV if the battery charge is depleted. This feature helps alleviate range anxiety , particularly in areas lacking sufficient charging infrastructure . Mass-produced PHEVs have been available to

600-413: A balancing circuit until the battery is balanced. Balancing typically occurs whenever one or more cells reach their top-of-charge voltage before the other(s), as it is generally inaccurate to do so at other stages of the charge cycle. This is most commonly done by passive balancing, which dissipates excess charge as heat via resistors connected momentarily across the cells to be balanced. Active balancing

720-602: A ceremony at its Detroit Hamtramck Assembly Plant on November 30, 2010, to introduce the first Chevrolet Volt off the assembly line. The first Volt built for retail sale was earmarked for display at GM's Heritage Center museum in Sterling Heights, Michigan . The second unit was offered at a public auction, with an opening bid of US$ 50,000 and it was won by Rick Hendrick who paid US$ 225,000 . The proceeds went to fund mathematics and sciences education in Detroit through

840-420: A conventional lithium-ion cell is graphite made from carbon . The positive electrode is typically a metal oxide or phosphate. The electrolyte is a lithium salt in an organic solvent . The negative electrode (which is the anode when the cell is discharging) and the positive electrode (which is the cathode when discharging) are prevented from shorting by a separator. The electrodes are connected to

960-468: A dramatic improvement in lithium-ion battery properties after their market introduction in 1991: over the following 30 years, their volumetric energy density increased threefold while their cost dropped tenfold. There are at least 12 different chemistries of Li-ion batteries; see " List of battery types ." The invention and commercialization of Li-ion batteries may have had one of the greatest impacts of all technologies in human history , as recognized by

1080-417: A gelled material, requiring fewer binding agents. This in turn shortens the manufacturing cycle. One potential application is in battery-powered airplanes. Another new development of lithium-ion batteries are flow batteries with redox-targeted solids, that use no binders or electron-conducting additives, and allow for completely independent scaling of energy and power. Generally, the negative electrode of

1200-400: A higher discharge rate. NMC and its derivatives are widely used in the electrification of transport , one of the main technologies (combined with renewable energy ) for reducing greenhouse gas emissions from vehicles . M. Stanley Whittingham conceived intercalation electrodes in the 1970s and created the first rechargeable lithium-ion battery, based on a titanium disulfide cathode and

1320-479: A larger battery pack that can be recharged (theoretically) from anywhere with access to the electrical grid , offering enhanced energy efficiency and cost-effectiveness when compared to relying solely on the on-board generator. Additionally, PHEVs can support longer and more frequent all-electric range driving, and their electric motors often have higher power output and torque , are more responsive in acceleration, and overall have lower operating costs . Although

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1440-404: A liquid solvent (such as propylene carbonate or diethyl carbonate ) is added. The electrolyte salt is almost always lithium hexafluorophosphate ( LiPF 6 ), which combines good ionic conductivity with chemical and electrochemical stability. The hexafluorophosphate anion is essential for passivating the aluminium current collector used for the positive electrode. A titanium tab

1560-403: A lithium manganese oxide (LiMn 2 O 4 ) cell made by its parent company, LG Chemical ; and Continental Automotive Systems , which uses lithium iron phosphate based cylindrical cells made by A123Systems . By the end of October 2007 CPI (LG Chem) delivered their finished battery pack prototypes , and A123 delivered theirs by January 2008. GM's testing process was conducted at the laboratory

1680-506: A lithium-aluminium anode, although it suffered from safety problems and was never commercialized. John Goodenough expanded on this work in 1980 by using lithium cobalt oxide as a cathode. The first prototype of the modern Li-ion battery, which uses a carbonaceous anode rather than lithium metal, was developed by Akira Yoshino in 1985 and commercialized by a Sony and Asahi Kasei team led by Yoshio Nishi in 1991. M. Stanley Whittingham , John Goodenough , and Akira Yoshino were awarded

1800-524: A lithium-ion cell can change dramatically. Current effort has been exploring the use of novel architectures using nanotechnology to improve performance. Areas of interest include nano-scale electrode materials and alternative electrode structures. The reactants in the electrochemical reactions in a lithium-ion cell are the materials of the electrodes, both of which are compounds containing lithium atoms. Although many thousands of different materials have been investigated for use in lithium-ion batteries, only

1920-607: A low-capacity PHEV sized with an AER (all-electric range) of about 7 miles would be a robust choice for minimizing gasoline consumption, cost, and greenhouse gas emissions. For less frequent charging, every 20–100 miles, PHEVs release fewer GHGs, but HEVs are more cost effective." PHEVs typically require deeper battery charging and discharging cycles than conventional hybrids. Because the number of full cycles influences battery life, this may be less than in traditional HEVs, which do not deplete their batteries as fully. Nonetheless, some authors argue that PHEVs will soon become standard in

2040-667: A new hybrid system, dubbed e-Power, which debuted with the Nissan Gripz concept crossover showcased at the 2015 Frankfurt Auto Show . In January 2016, Chrysler debuted its plug-in hybrid minivan, the Chrysler Pacifica Hybrid , with an EPA rated electric-only range of 48 km (30 miles). This was the first hybrid minivan of any type. It was first sold in the United States, Canada, and Mexico in 2017. In December 2017, Honda began retail deliveries of

2160-424: A non-aqueous electrolyte is typically used, and a sealed container rigidly excludes moisture from the battery pack. The non-aqueous electrolyte is typically a mixture of organic carbonates such as ethylene carbonate and propylene carbonate containing complexes of lithium ions. Ethylene carbonate is essential for making solid electrolyte interphase on the carbon anode, but since it is solid at room temperature,

2280-615: A plug-in Jeep Wrangler and a Chrysler Town and Country mini-van, both PHEV-40s with series powertrains, and an all-electric Dodge sports car, and said that one of the three vehicles would go into production. On October 3, the U.S. enacted the Energy Improvement and Extension Act of 2008 . The legislation provided tax credits for the purchase of plug-in electric vehicles of battery capacity over 4 kilowatt-hours. The federal tax credits were extended and modified by

2400-449: A polymer gel as an electrolyte), a lithium cobalt oxide ( LiCoO 2 ) cathode material, and a graphite anode, which together offer high energy density. Lithium iron phosphate ( LiFePO 4 ), lithium manganese oxide ( LiMn 2 O 4 spinel , or Li 2 MnO 3 -based lithium-rich layered materials, LMR-NMC), and lithium nickel manganese cobalt oxide ( LiNiMnCoO 2 or NMC) may offer longer life and

2520-446: A process called insertion ( intercalation ) or extraction ( deintercalation ), respectively. As the lithium ions "rock" back and forth between the two electrodes, these batteries are also known as "rocking-chair batteries" or "swing batteries" (a term given by some European industries). The following equations exemplify the chemistry (left to right: discharging, right to left: charging). The negative electrode half-reaction for

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2640-529: A range of alternative materials, replaced TiS 2 with lithium cobalt oxide ( LiCoO 2 , or LCO), which has a similar layered structure but offers a higher voltage and is much more stable in air. This material would later be used in the first commercial Li-ion battery, although it did not, on its own, resolve the persistent issue of flammability. These early attempts to develop rechargeable Li-ion batteries used lithium metal anodes, which were ultimately abandoned due to safety concerns, as lithium metal

2760-430: A solid organic electrolyte, polyethylene oxide , which was more stable. In 1985, Akira Yoshino at Asahi Kasei Corporation discovered that petroleum coke , a less graphitized form of carbon, can reversibly intercalate Li-ions at a low potential of ~0.5 V relative to Li+ /Li without structural degradation. Its structural stability originates from its amorphous carbon regions, which serving as covalent joints to pin

2880-554: A standard outlet and recharged to 95% range in about 4 hours. After selling about 500 vehicles, primarily in France, Norway and the UK, the Elect'road was redesigned in 2007. With the availability of hybrid vehicles and the rising gas prices in the United States starting around 2002, interest in plug-in hybrids increased. Some plug-in hybrids were conversions of existing hybrids; for example,

3000-541: A temperature range of 5 to 45 °C (41 to 113 °F). Charging should be performed within this temperature range. At temperatures from 0 to 5 °C charging is possible, but the charge current should be reduced. During a low-temperature (under 0 °C) charge, the slight temperature rise above ambient due to the internal cell resistance is beneficial. High temperatures during charging may lead to battery degradation and charging at temperatures above 45 °C will degrade battery performance, whereas at lower temperatures

3120-523: A theoretical capacity of 1339 coulombs per gram (372 mAh/g). The positive electrode is generally one of three materials: a layered oxide (such as lithium cobalt oxide ), a polyanion (such as lithium iron phosphate ) or a spinel (such as lithium manganese oxide ). More experimental materials include graphene -containing electrodes, although these remain far from commercially viable due to their high cost. Lithium reacts vigorously with water to form lithium hydroxide (LiOH) and hydrogen gas. Thus,

3240-515: A very small number are commercially usable. All commercial Li-ion cells use intercalation compounds as active materials. The negative electrode is usually graphite , although silicon is often mixed in to increase the capacity. The electrolyte is usually lithium hexafluorophosphate , dissolved in a mixture of organic carbonates . A number of different materials are used for the positive electrode, such as LiCoO 2 , LiFePO 4 , and lithium nickel manganese cobalt oxides . During cell discharge

3360-460: Is 38 mi (61 km), with a combined electric mode/gasoline-only rating of 62 mpg ‑US (3.8 L/100 km; 74 mpg ‑imp ) equivalent (MPG equivalent). The second-generation Volt 's improved battery system and drivetrain increased the all-electric range to 53 miles (85 km), its EPA-rated fuel economy in charge-sustaining mode to 42 mpg ‑US (5.6 L/100 km; 50 mpg ‑imp ), and

3480-440: Is a CuF 2 /Li battery developed by NASA in 1965. The breakthrough that produced the earliest form of the modern Li-ion battery was made by British chemist M. Stanley Whittingham in 1974, who first used titanium disulfide ( TiS 2 ) as a cathode material, which has a layered structure that can take in lithium ions without significant changes to its crystal structure . Exxon tried to commercialize this battery in

3600-417: Is a bit more than the heat of combustion of gasoline but does not consider the other materials that go into a lithium battery and that make lithium batteries many times heavier per unit of energy. Note that the cell voltages involved in these reactions are larger than the potential at which an aqueous solutions would electrolyze . During discharge, lithium ions ( Li ) carry the current within

3720-501: Is a plug-in dual hybrid . The Mercedes-Benz C-Class (W206) and the Mercedes C254/X254 also have an electrically assisted turbocharger / MGU-H . The battery charger can be on-board or external to the vehicle. The process for an on-board charger is best explained as AC power being converted into DC power, resulting in the battery being charged. On-board chargers are limited in capacity by their weight and size, and by

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3840-400: Is a type of rechargeable battery that uses the reversible intercalation of Li ions into electronically conducting solids to store energy. In comparison with other commercial rechargeable batteries , Li-ion batteries are characterized by higher specific energy , higher energy density , higher energy efficiency , a longer cycle life , and a longer calendar life . Also noteworthy is

3960-478: Is an asked-for alternative to an earlier mandate to produce 25,000 pure zero-emissions vehicles , reducing that requirement to 5,000. On June 26, Volkswagen announced that they would be introducing production plug-ins based on the Golf compact. Volkswagen uses the term 'TwinDrive' to denote a PHEV. In September, Mazda was reported to be planning PHEVs. On September 23, Chrysler announced that they had prototyped

4080-428: Is automatically overridden (charge permitting) should full acceleration be required. Self Charge ; the electric motor's armature is engaged to the transmission, but is connected to the battery so that it runs as a generator and therefore recharges the battery whilst the car is in motion, although this comes at the expense of higher fuel consumption, as the combustion engine has to both power the vehicle itself and charge

4200-421: Is built with a 800 cc (49 cu in) TDI twin-cylinder, common-rail 35 kW (47 hp) turbo-diesel and a 20 kW (27 hp) electric motor. The model is unique in that it is one of the only mass produced plug-in diesel hybrid vehicles and one of the only mass produced diesel hybrid vehicles in general. PHEVs are based on the same three basic powertrain architectures of conventional hybrids;

4320-416: Is exhausted. The vehicle can revert to a charge sustaining-mode until the final destination is reached. This contrasts with a charge-depleting trip that would be driven within the limits of a PHEV's all-electric range. Most PHEV's also have two additional charge sustaining modes: Battery Hold ; the electric motor is locked out and the vehicle operates exclusively on combustion power, so that whatever charge

4440-472: Is expensive, and cells made with it can release oxygen if overcharged. If the cobalt is replaced with iron phosphates , the cells will not burn or release oxygen under any charge. At early 2007 gasoline and electricity prices, the break-even point is reached after six to ten years of operation. The payback period may be longer for plug-in hybrids, because of their larger, more expensive batteries. Lithium-ion battery A lithium-ion or Li-ion battery

4560-407: Is left in the battery remains for when mixed mode or full electric operation are re-engaged, whilst regenerative braking will still be available to boost the battery charge. On some PHEVs, vehicle services that use the traction battery (such as heating and air conditioning) are placed in a low power consumption mode to further conserve the remaining battery charge. The lock-out of the electric motor

4680-413: Is less common, more expensive, but more efficient, returning excess energy to other cells (or the entire pack) via a DC-DC converter or other circuitry. Balancing most often occurs during the constant voltage stage of charging, switching between charge modes until complete. The pack is usually fully charged only when balancing is complete, as even a single cell group lower in charge than the rest will limit

4800-462: Is recommended to be initiated when voltage goes below 4.05 V/cell. Failure to follow current and voltage limitations can result in an explosion. Charging temperature limits for Li-ion are stricter than the operating limits. Lithium-ion chemistry performs well at elevated temperatures but prolonged exposure to heat reduces battery life. Li‑ion batteries offer good charging performance at cooler temperatures and may even allow "fast-charging" within

4920-442: Is the vehicle's all-electric range. This is the only mode that a battery electric vehicle can operate in, hence their limited range. Mixed mode describes a trip using a combination of multiple modes. For example, a car may begin a trip in low speed charge-depleting mode, then enter onto a freeway and operate in blended mode. The driver might exit the freeway and drive without the internal combustion engine until all-electric range

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5040-555: Is to provide a visible indicator of the transfer of technology from BMW i to the BMW core brand. The new designation will be used first on the plug-in hybrid variants of the new BMW 7 Series , the BMW 740e iPerformance , and the 3 Series , the BMW 330e iPerformance . Hyundai Motor Company made the official debut of its three model Hyundai Ioniq line-up at the 2016 Geneva Motor Show . The Ioniq family of electric drive vehicles includes

5160-410: Is ultrasonically welded to the aluminium current collector. Other salts like lithium perchlorate ( LiClO 4 ), lithium tetrafluoroborate ( LiBF 4 ), and lithium bis(trifluoromethanesulfonyl)imide ( LiC 2 F 6 NO 4 S 2 ) are frequently used in research in tab-less coin cells , but are not usable in larger format cells, often because they are not compatible with

5280-537: Is unstable and prone to dendrite formation, which can cause short-circuiting . The eventual solution was to use an intercalation anode, similar to that used for the cathode, which prevents the formation of lithium metal during battery charging. The first to demonstrate lithium ion reversible intercalation into graphite anodes was Jürgen Otto Besenhard in 1974. Besenhard used organic solvents such as carbonates, however these solvents decomposed rapidly providing short battery cycle life. Later, in 1980, Rachid Yazami used

5400-542: The American Clean Energy and Security Act of 2009 , but now the battery capacity must be over 5 kWh and the credit phases out after the automaker has sold at least 200,000 vehicles in the U.S. On December 15, 2008, BYD Auto began selling its F3DM in China , becoming the first production plug-in hybrid sold in the world, though initially was available only for corporate and government customers. Sales to

5520-646: The General Motors XP-883 plug-in hybrid. The concept commuter vehicle housed six 12-volt lead–acid batteries in the trunk area and a transverse-mounted DC electric motor turning a front-wheel drive. The car could be plugged into a standard North American 120 volt AC outlet for recharging. In 2003, Renault began selling the Elect'road , a plug-in series hybrid version of their popular Kangoo , in Europe. In addition to its engine, it could be plugged into

5640-583: The Honda Clarity Plug-In Hybrid in the United States and Canada, with an EPA rated electric-only range of 76 km (47 miles). In 2013, Volkswagen started production on the Volkswagen XL1 , a two-person limited production diesel-powered plug-in hybrid vehicle designed to be able to travel 100 km/L (280 mpg ‑imp ; 235 mpg ‑US ) on diesel, while still being both roadworthy and practical. The model

5760-556: The Ioniq Plug-in , which is expected to achieve a fuel economy of 125 mpg‑e (27 kW⋅h/100 mi; 16.8 kW⋅h/100 km) in all-electric mode. The Ioniq Plug-in is scheduled to be released in the U.S. in the fourth quarter of 2017. The second generation Prius plug-in hybrid, called Prius Prime in the U.S. and Prius PHV in Japan, was unveiled at the 2016 New York International Auto Show . Retail deliveries of

5880-477: The Toyota Prius C d =0.25. Another reason was the use of General Motors's new global compact vehicle platform Delta II to keep costs reasonable, and shared with the 2010 model year Chevrolet Cruze . Another significant difference from the concept car was the seating, as the production Volt seats four rather than five passengers. This change was due to the higher-than-usual central tunnel that runs from

6000-401: The constant current phase, the charger applies a constant current to the battery at a steadily increasing voltage, until the top-of-charge voltage limit per cell is reached. During the balance phase, the charger/battery reduces the charging current (or cycles the charging on and off to reduce the average current) while the state of charge of individual cells is brought to the same level by

6120-479: The 100,000 unit milestone in October 2015. By the end of 2015, over 517,000 highway legal plug-in hybrid electric cars have been sold worldwide since December 2008 out of total global sales of more than 1.25 million light-duty plug-in electric cars. In February 2016, BMW announced the introduction of the "iPerformance" model designation, which will be given to all BMW plug-in hybrid vehicles from July 2016. The aim

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6240-456: The 2004 CalCars conversion of a Prius to add lead acid batteries and a range of up to 15 km (9 mi) using only electric power. In 2006, both Toyota and General Motors announced plans for plug-in hybrids. GM's Saturn Vue project was cancelled, but the Toyota plug-in was certified for road use in Japan in 2007. In 2007, Quantum Technologies and Fisker Coachbuild , LLC announced

6360-499: The 2011 Volt began in the United States in mid-December 2010, followed by some European countries and other international markets in 2011. Global combined Volt/Ampera-family sales totaled about 177,000 units by the end of October 2018. The U.S. was the leading market, with 157,054 Volts delivered through the end of 2019, followed by Canada with 16,653 Volts sold through September 2018. Just over 10,000 Opel/Vauxhall Ampera cars had been sold in Europe as of June 2016. Until December 2018,

6480-733: The 2019 Nobel Prize in Chemistry "for the development of lithium-ion batteries". Jeff Dahn received the ECS Battery Division Technology Award (2011) and the Yeager award from the International Battery Materials Association (2016). In April 2023, CATL announced that it would begin scaled-up production of its semi-solid condensed matter battery that produces a then record 500 Wh/kg . They use electrodes made from

6600-483: The 2019 Nobel Prize in Chemistry . More specifically, Li-ion batteries enabled portable consumer electronics , laptop computers , cellular phones , and electric cars , or what has been called the e-mobility revolution. It also sees significant use for grid-scale energy storage as well as military and aerospace applications. Lithium-ion cells can be manufactured to optimize energy or power density. Handheld electronics mostly use lithium polymer batteries (with

6720-476: The 2019 Nobel Prize in Chemistry for their contributions to the development of lithium-ion batteries. Lithium-ion batteries can be a safety hazard if not properly engineered and manufactured because they have flammable electrolytes that, if damaged or incorrectly charged, can lead to explosions and fires. Much progress has been made in the development and manufacturing of safe lithium-ion batteries. Lithium-ion solid-state batteries are being developed to eliminate

6840-574: The Alaskan tundra . In April 2008 the lithium-ion battery pack was placed in Chevrolet Malibus fitted with the Volt powertrain to be used as test mules for further real-world testing. In October 2008, GM chose CPI (LG Chemical) to provide the battery systems for the first production version of the Volt. In July 2008, GM confirmed that a non-turbocharged, 1.4 L 4-cylinder engine would be used as

6960-796: The Detroit Public Schools Foundation. Deliveries to retail customers in the United States began in mid December 2010. Volt deliveries began in Canada in September 2011. The first deliveries of the Chevrolet Volt in Europe took place in November 2011. The European version of the Volt, the Opel Ampera, was released to retail customers in Europe in February 2012. Deliveries of the right-hand drive Vauxhall Ampera in

7080-705: The Prime runs entirely on electricity in EV mode. Global sales of the Mitsubishi Outlander PHEV passed the 100,000 unit milestone in March 2016. BYD Qin sales in China reached the 50,000 unit milestone in April 2016, becoming the fourth plug-in hybrid to pass that mark. In June 2016, Nissan announced it will introduce a compact range extender car in Japan before March 2017. The series plug-in hybrid will use

7200-507: The Prius Prime began in the U.S. in November 2016, and is scheduled to be released Japan by the end of 2016. The Prime has an EPA-rated all-electric range of 25 mi (40 km), over twice the range of the first generation model, and an EPA rated fuel economy of 133 mpg‑e (25.3 kW⋅h/100 mi) in all-electric mode (EV mode), the highest MPGe rating in EV mode of any vehicle rated by EPA. Unlike its predecessor,

7320-487: The U.S. and Canada in October 2015. In March 2015 Audi said they planned on making a plug-in hybrid version of every model series, and that they expect plug-in hybrids, together with natural gas vehicles and battery-electric drive systems, to have a key contribution in achieving the company's CO 2 targets. The Audi Q7 e-tron will follow the A3 e-tron already in the market. Also in March 2015, Mercedes-Benz announced that

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7440-676: The U.S. in 2014. The first units of the Audi A3 Sportback e-tron and Volkswagen Golf GTE were registered in Germany in August 2014. In December 2014 BMW announced the group is planning to offer plug-in hybrid versions of all its core-brand models using eDrive technology developed for its BMW i brand plug-in vehicles ( BMW i3 and BMW i8). The goal of the company is to use plug-in technology to continue offering high performance vehicles while reducing CO 2 emissions below 100g/km. At

7560-628: The UK began in May 2012. The Holden Volt was released in Australia in December 2012. The second generation Chevrolet Volt was unveiled at the January 2015 North American International Auto Show . Retail deliveries began in the United States and Canada in October 2015 as a 2016 model year , with 1,324 units delivered in the U.S. that month. Availability in the American market was limited to California and

7680-489: The Volt/Ampera family of vehicles was the world's bestselling plug-in hybrid vehicle. When it was discontinued, the Chevrolet Volt was still listed as the top-selling plug-in hybrid in the American market. The Volt operates as a pure battery electric vehicle until its battery capacity drops to a predetermined threshold from full charge. From there, its internal combustion engine powers an electric generator to extend

7800-578: The Year , and 2016 Green Car of the Year. The production design model officially unveiled on September 16, 2008, as part of General Motors (GM) centennial celebration at the Wintergarden headquarters in Detroit. The production model differed greatly in design from the original concept car. The carmaker cited necessary aerodynamic changes needed to reduce the concept car's high drag coefficient of C d =0.43 down to C d =0.28, still higher than

7920-729: The all-electric Opel Ampera-e hatchback would go into production in 2017. This is the European version of the Chevrolet Bolt EV . In April 2015, General Motors confirmed that it would not build the second-generation Volt in right-hand-drive configuration. Only 246 units had been sold in Australia by mid-April 2015, and the Holden Volt was discontinued once the remaining stock was sold . The Volt received awards from multiple organizations: U.S. organizations International organizations European organizations Rest of

8040-509: The all-electric range and fuel economy ratings are the same for the 2017 model year Volt. The second-generation Volt seats five rather than four, as in the first generation. In April 2013, CEO Daniel Akerson announced that GM expected the second generation Volt to be priced on the order of US$ 7,000 to US$ 10,000 lower than the 2013 model year with the same features. The 2016 Volt pricing started at US$ 33,170 before any government incentives , plus US$ 825 for destination. The starting price

8160-434: The aluminium current collector. Copper (with a spot-welded nickel tab) is used as the current collector at the negative electrode. Current collector design and surface treatments may take various forms: foil, mesh, foam (dealloyed), etched (wholly or selectively), and coated (with various materials) to improve electrical characteristics. Depending on materials choices, the voltage , energy density , life, and safety of

8280-416: The area of non-flammable electrolytes as a pathway to increased safety based on the flammability and volatility of the organic solvents used in the typical electrolyte. Strategies include aqueous lithium-ion batteries , ceramic solid electrolytes, polymer electrolytes, ionic liquids, and heavily fluorinated systems. Research on rechargeable Li-ion batteries dates to the 1960s; one of the earliest examples

8400-427: The automobile industry. Design issues and trade-offs against battery life, capacity, heat dissipation, weight, costs, and safety need to be solved. Advanced battery technology is under development, promising greater energy densities by both mass and volume, and battery life expectancy is expected to increase. The cathodes of some early 2007 lithium-ion batteries are made from lithium-cobalt metal oxide. This material

8520-399: The battery cell from the negative to the positive electrode, through the non- aqueous electrolyte and separator diaphragm. During charging, an external electrical power source applies an over-voltage (a voltage greater than the cell's own voltage) to the cell, forcing electrons to flow from the positive to the negative electrode. The lithium ions also migrate (through the electrolyte) from

8640-490: The battery. This is useful for 'charging on the move' when there are limited places to plug the vehicle in. The optimum battery size varies depending on whether the aim is to reduce fuel consumption, running costs, or emissions, but a 2009 study concluded that "The best choice of PHEV battery capacity depends critically on the distance that the vehicle will be driven between charges. Our results suggest that for urban driving conditions and frequent charges every 10 miles or less,

8760-566: The car, and are designed to handle any practical power capability, they can be used to create a very powerful form of on-board charger with no significant additional weight or size. AC Propulsion uses this charging method, referred to as "reductive charging". A plug-in hybrid operates in charge-depleting and charge-sustaining modes. Combinations of these two modes are termed blended mode or mixed-mode. These vehicles can be designed to drive for an extended range in all-electric mode , either at low speeds only or at all speeds. These modes manage

8880-456: The carmaker had created for the GM EV1 program. The battery packs included monitoring systems designed to keep the batteries cool and operating at optimum capacity despite a wide range of ambient temperatures. To ensure the battery pack would last 10 years and 150,000 miles (240,000 km) expected for the battery warranty, the Volt team decided to use only half of the 16 kWh capacity to reduce

9000-475: The carmaker put the battery packs to the equivalent of 150,000 real-world miles (240,000 km) and 10 years of use. The durability of the battery pack was tested for a broad range of extreme ambient conditions including a shaker table to simulate potholes and a thermal chamber, to simulate temperatures varying from 116 °F (47 °C), typical of the Southwest deserts, to −40 °F (−40 °C) typical of

9120-414: The combined city/highway fuel economy in all-electric mode to 106 MPG-e, up from 98 MPG-e. Deliveries to retail customers in the U.S. and Canada began in October 2015 as a 2016 model year . The Volt won several awards, including the 2009 Green Car Vision Award , 2011 Green Car of the Year , 2011 North American Car of the Year , 2011 World Green Car , 2011 SAE Best engineered car, 2012 European Car of

9240-663: The company's main emphasis regarding alternative drives in the next years will be on plug-in hybrids. The carmaker plans to introduce 10 new plug-in hybrid models by 2017, and its next release was the Mercedes-Benz C 350 e , Mercedes' second plug-in hybrid after the S 500 Plug-In Hybrid . Other plug-in hybrid released in 2015 are the BYD Tang , Volkswagen Passat GTE , Volvo XC90 T8 , and the Hyundai Sonata PHEV . Global combined Volt/Ampera family sales passed

9360-511: The entire battery's usable capacity to that of its own. Balancing can last hours or even days, depending on the magnitude of the imbalance in the battery. During the constant voltage phase, the charger applies a voltage equal to the maximum cell voltage times the number of cells in series to the battery, as the current gradually declines towards 0, until the current is below a set threshold of about 3% of initial constant charge current. Periodic topping charge about once per 500 hours. Top charging

9480-419: The external circuit toward the cathode where they recombine with the cathode material in a reduction half-reaction. The electrolyte provides a conductive medium for lithium ions but does not partake in the electrochemical reaction. The reactions during discharge lower the chemical potential of the cell, so discharging transfers energy from the cell to wherever the electric current dissipates its energy, mostly in

9600-481: The external circuit. During charging these reactions and transports go in the opposite direction: electrons move from the positive electrode to the negative electrode through the external circuit. To charge the cell the external circuit has to provide electrical energy. This energy is then stored as chemical energy in the cell (with some loss, e. g., due to coulombic efficiency lower than 1). Both electrodes allow lithium ions to move in and out of their structures with

9720-665: The first SUV plug-in hybrid in the market. Deliveries of the Ford Fusion Energi began in February 2013. BYD Auto stopped production of its BYD F3DM due to low sales, and its successor, the BYD Qin , began sales in Costa Rica in November 2013, with sales in other countries in Latin America scheduled to begin in 2014. Qin deliveries began in China in mid December 2013. Deliveries to retail customers of

9840-559: The first flexible-fuel plug-in hybrid SUV , which was delivered in June 2008. This demonstration fleet of plug-ins has been in field testing with utility company fleets in the U.S. and Canada, and during the first two years since the program began, the fleet has logged more than 75,000 miles. In August 2009 Ford delivered the first Escape Plug-in equipped with intelligent vehicle-to-grid (V2G) communications and control system technology, and Ford plans to equip all 21 plug-in hybrid Escapes with

9960-579: The first factory-built Volt was produced at the Detroit Hamtramck Assembly Plant to test the production line and for quality control purposes, both of the tooling and the pre-production vehicles produced before regular production began. Tony Posawatz was the Volt Vehicle Line Director from 2006 to 2012, and he was known as employee #1 and led the team from concept to production. General Motors held

10080-864: The flammable electrolyte. Improperly recycled batteries can create toxic waste, especially from toxic metals, and are at risk of fire. Moreover, both lithium and other key strategic minerals used in batteries have significant issues at extraction, with lithium being water intensive in often arid regions and other minerals used in some Li-ion chemistries potentially being conflict minerals such as cobalt . Both environmental issues have encouraged some researchers to improve mineral efficiency and find alternatives such as Lithium iron phosphate lithium-ion chemistries or non-lithium-based battery chemistries like iron-air batteries . Research areas for lithium-ion batteries include extending lifetime, increasing energy density, improving safety, reducing cost, and increasing charging speed, among others. Research has been under way in

10200-489: The front console to the rear seat that houses the car's T-shaped battery pack. After the concept was put into the pipeline for production, GM began looking for a partner to develop the Volt's lithium-ion battery pack. The carmaker evaluated about 25 battery cell chemistries and constructions from around two dozen lithium-ion battery makers around the world. Due to their more promising cell technologies, two companies were selected in June 2007, Compact Power (CPI), which uses

10320-649: The general public began in Shenzhen in March 2010, but because the F3DM nearly doubles the price of cars that run on conventional fuel, BYD expects subsidies from the local government to make the plug-in affordable to personal buyers. Toyota tested 600 pre-production Prius Plug-ins in Europe and North America in 2009 and 2010. Volvo Cars built two demonstration versions of Volvo V70 Plug-in Hybrids in 2009 but did not proceed with production. The V60 plug-in hybrid

10440-498: The global stock of PHEVs totalled 2.4 million units, representing one-third of the stock of plug-in electric passenger cars on the world's roads. As of December 2019 , China had the world's largest stock of PHEVs with 767,900 units, followed by the United States with 567,740, and the United Kingdom with 159,910. A plug-in hybrid's all-electric range is designated by PHEV- [miles] or PHEV [kilometers] km in which

10560-470: The graphite is The positive electrode half-reaction in the lithium-doped cobalt oxide substrate is The full reaction being The overall reaction has its limits. Overdischarging supersaturates lithium cobalt oxide , leading to the production of lithium oxide , possibly by the following irreversible reaction: Overcharging up to 5.2  volts leads to the synthesis of cobalt (IV) oxide, as evidenced by x-ray diffraction : The transition metal in

10680-443: The internal resistance of the battery may increase, resulting in slower charging and thus longer charging times. Batteries gradually self-discharge even if not connected and delivering current. Li-ion rechargeable batteries have a self-discharge rate typically stated by manufacturers to be 1.5–2% per month. The rate increases with temperature and state of charge. A 2004 study found that for most cycling conditions self-discharge

10800-564: The late 1970s, but found the synthesis expensive and complex, as TiS 2 is sensitive to moisture and releases toxic H 2 S gas on contact with water. More prohibitively, the batteries were also prone to spontaneously catch fire due to the presence of metallic lithium in the cells. For this, and other reasons, Exxon discontinued the development of Whittingham's lithium-titanium disulfide battery. In 1980, working in separate groups Ned A. Godshall et al., and, shortly thereafter, Koichi Mizushima and John B. Goodenough , after testing

10920-564: The launch of a joint venture in Fisker Automotive . Fisker intended to build a US$ 80,000 luxury PHEV-50, the Fisker Karma , initially scheduled for late 2009. In 2007, Aptera Motors announced their Typ-1 two seater. That company folded in December 2011. In 2007, Chinese car manufacturer BYD Auto, owned by China's largest mobile phone battery maker, announced it would be introducing a production PHEV-60 sedan in China in

11040-435: The layers together. Although it has a lower capacity compared to graphite (~Li0.5C6, 186 mAh g–1), it became the first commercial intercalation anode for Li-ion batteries owing to its cycling stability. In 1987, Yoshino patented what would become the first commercial lithium-ion battery using this anode. He used Goodenough's previously reported LiCoO 2 as the cathode and a carbonate ester -based electrolyte. The battery

11160-486: The limited capacity of general-purpose AC outlets. Dedicated off-board chargers can be as large and powerful as the user can afford, but require returning to the charger; high-speed chargers may be shared by multiple vehicles. Using the electric motor's inverter allows the motor windings to act as the transformer coils, and the existing high-power inverter as the AC-to-DC charger. As these components are already required on

11280-550: The limited edition McLaren P1 supercar began in the UK in October 2013, and the Porsche Panamera S E-Hybrid began deliveries in the U.S. in November 2013. The first retail deliveries of the Cadillac ELR took place in the U.S. in December 2013. The BMW i8 and the limited edition Volkswagen XL1 were released to retail customers in Germany in June 2014. The Porsche 918 Spyder was also released in Europe and

11400-428: The negative electrode is the anode and the positive electrode the cathode : electrons flow from the anode to the cathode through the external circuit. An oxidation half-reaction at the anode produces positively charged lithium ions and negatively charged electrons. The oxidation half-reaction may also produce uncharged material that remains at the anode. Lithium ions move through the electrolyte; electrons move through

11520-787: The number represents the distance the vehicle can travel on battery power alone. For example, a PHEV-20 can travel 32 km (20 miles) without using its combustion engine, so it may also be designated as a PHEV32km. For these cars to be battery operated, they go through charging processes that use different currents. These currents are known as Alternating Current (AC) used for on board chargers and Direct Current (DC) used for external charging. Other popular terms sometimes used for plug-in hybrids are "grid-connected hybrids", "Gas-Optional Hybrid Electric Vehicle" (GO-HEV) or simply "gas-optional hybrids". GM calls its Chevrolet Volt series plug-in hybrid an "Extended-Range Electric Vehicle". The Lohner–Porsche Mixte Hybrid , produced as early as 1899,

11640-483: The other 10 states that follow California's zero emission vehicle regulations. GM scheduled the second generation as a 2017 model year to be released in the 39 remaining states by early 2016. Manufacturing of the 2017 MY Volt began in February 2016, and the first units arrived at dealerships at the end of February 2016. The 2017 model complied with stricter Tier 3 emissions requirements and was available nationwide. The second generation Volt had an upgraded powertrain with

11760-410: The positive electrode, cobalt ( Co ), is reduced from Co to Co during discharge, and oxidized from Co to Co during charge. The cell's energy is equal to the voltage times the charge. Each gram of lithium represents Faraday's constant /6.941, or 13,901 coulombs. At 3 V, this gives 41.7 kJ per gram of lithium, or 11.6 kWh per kilogram of lithium. This

11880-492: The positive to the negative electrode where they become embedded in the porous electrode material in a process known as intercalation . Energy losses arising from electrical contact resistance at interfaces between electrode layers and at contacts with current collectors can be as high as 20% of the entire energy flow of batteries under typical operating conditions. The charging procedures for single Li-ion cells, and complete Li-ion batteries, are slightly different: During

12000-432: The powered circuit through two pieces of metal called current collectors. The negative and positive electrodes swap their electrochemical roles ( anode and cathode ) when the cell is charged. Despite this, in discussions of battery design the negative electrode of a rechargeable cell is often just called "the anode" and the positive electrode "the cathode". In its fully lithiated state of LiC 6 , graphite correlates to

12120-405: The presence of ethylene carbonate solvent (which is solid at room temperature and is mixed with other solvents to make a liquid). This represented the final innovation of the era that created the basic design of the modern lithium-ion battery. In 2010, global lithium-ion battery production capacity was 20 gigawatt-hours. By 2016, it was 28 GWh, with 16.4 GWh in China. Global production capacity

12240-586: The previous model. The second generation rating for combined city/highway fuel economy in all-electric mode was 106 miles per gallon gasoline equivalent (MPGe; 2.2   Le/100   km), up from 98   MPGe (2.4   Le/100   km) for the 2015 first generation model. The combined gasoline-electricity fuel economy rating of the 2016 model year Volt was 77 mpg ‑US (3.1 L/100 km; 92 mpg ‑imp ) equivalent , 82   MPGe (2.9   Le/100   km) in city driving and 72   MPGe (3.3   Le/100   km) in highway. Both

12360-724: The public in China and the United States since 2010, with the introduction of the Chevrolet Volt , which was the best selling PHEV until it was surpassed by the Mitsubishi Outlander PHEV at the Volt's end of production in 2019. By 2021, BYD Auto emerged as the largest plug-in hybrid vehicle manufacturer in the world. As of May 2024 , BYD plug-in hybrid cumulative sales surpassed 3.6 million units. The BYD Song DM line of SUVs contributed over 1.05 million units. As of December 2019 ,

12480-756: The range extender, and that the intention was to build it in Flint, Michigan . In April 2009, General Motors let journalists test the Volt powertrain without the range-extending generator in the body of Chevrolet Cruze sedans that GM used as test mules at the GM Technical Center in Warren, Michigan . The first pre-production test car based on the final Volt design was built in June 2009, in Warren, Michigan, and by October 2009, 80 Volts had been built and were tested under various conditions. On March 31, 2010,

12600-610: The range to more than 500 kilometres (310 mi). GM officially launched the Chevrolet Volt in the U.S. on November 30, 2010, and retail deliveries began in December 2010. Its sibling the Opel/Vauxhall Ampera was launched in Europe between late 2011 and early 2012. The first deliveries of the Fisker Karma took place in July 2011, and deliveries to retail customers began in November 2011. The Toyota Prius Plug-in Hybrid

12720-409: The rate of capacity degradation, limiting the state of charge (SOC) up to 80% of capacity and never depleting the battery below 30%. GM also expected the battery to withstand 5,000 full discharges without losing more than 10% of its charge capacity. According to GM, as of August 2016, no batteries had been changed due to degradation. In April 2008 GM started extensive battery testing. In two years,

12840-608: The second generation Volt was developed with extensive input from Volt owners. The improvements allowed the 2016 Volt to deliver better EPA ratings than the first generation model. The all-electric range was rated at 53 mi (85 km), up from 38 mi (61 km) attained by the 2015 Volt. The gains in efficiency allowed the second generation to improve its combined fuel economy in gasoline-only ( charge-sustaining ) mode to 42 mpg ‑US (5.6 L/100 km; 50 mpg ‑imp ), up from 37 mpg ‑US (6.4 L/100 km; 44 mpg ‑imp ) for

12960-579: The second half of 2008. BYD exhibited it in January 2008 at the North American International Auto Show in Detroit. Based on BYD's midsize F6 sedan, it uses lithium iron phosphate (LiFePO 4 )-based batteries instead of lithium-ion, and can be recharged to 70% of capacity in 10 minutes. In 2007 Ford delivered the first Ford Escape Plug-in Hybrid of a fleet of 20 demonstration PHEVs to Southern California Edison . As part of this demonstration program Ford also developed

13080-401: The time of the announcement the carmaker was already testing a BMW 3 Series plug-in hybrid prototype. The first model available for retail sales will be the 2016 BMW X5 eDrive , with the production version unveiled at the 2015 Shanghai Motor Show . The second generation Chevrolet Volt was unveiled at the January 2015 North American International Auto Show , and retail deliveries began in

13200-467: The vehicle's battery discharge strategy, and their use has a direct effect on the size and type of battery required: Charge-depleting mode allows a fully charged PHEV to operate exclusively (or depending on the vehicle, almost exclusively, except during hard acceleration) on electric power until its battery state of charge is depleted to a predetermined level, at which time the vehicle's internal combustion engine or fuel cell will be engaged . This period

13320-517: The vehicle's range as needed. While running on gasoline at high speeds the engine may be mechanically linked (by a clutch) to a generator set, improving efficiency by 10% to 15%. The Volt's regenerative braking also contributes to the on-board electricity generation. Under the United States Environmental Protection Agency (EPA) cycle, the 2013‍–‍15 model year Volt all-electric range

13440-637: The vehicle-to-grid communications technology. Sales of the Escape PHEV were scheduled for 2012. On January 14, 2008, Toyota announced they would start sales of lithium-ion battery PHEVs by 2010, but later in the year Toyota indicated they would be offered to commercial fleets in 2009. On March 27, the California Air Resources Board (CARB) modified their regulations, requiring automobile manufacturers to produce 58,000 plug-in hybrids during 2012 through 2014. This requirement

13560-450: The world organizations Plug-in hybrid Similar to battery electric vehicles (BEVs), plug-in hybrids can use centralized generators of renewable energy (e.g. solar , wind or hydroelectric ) to be largely emission-free, or a fossil plant in which case they displace greenhouse gas emissions from the car tailpipe exhaust to the power station . As opposed to conventional hybrid electric vehicles (HEVs), PHEVs generally have

13680-470: Was US$ 1,175 lower than the 2015 Volt. In California, order books for the second generation Volt were opened on May 28, 2015. In July 2014, Opel announced that due to a slowdown in sales, they would discontinue the Ampera after the launch of the second generation Volt—and that between 2014 and 2018, Opel planned to introduce a successor electric vehicle in Europe. General Motors announced in February 2016 that

13800-419: Was 767 GWh in 2020, with China accounting for 75%. Production in 2021 is estimated by various sources to be between 200 and 600 GWh, and predictions for 2023 range from 400 to 1,100 GWh. In 2012, John B. Goodenough , Rachid Yazami and Akira Yoshino received the 2012 IEEE Medal for Environmental and Safety Technologies for developing the lithium-ion battery; Goodenough, Whittingham, and Yoshino were awarded

13920-630: Was assembled in the discharged state, which made it safer and cheaper to manufacture. In 1991, using Yoshino's design, Sony began producing and selling the world's first rechargeable lithium-ion batteries. The following year, a joint venture between Toshiba and Asashi Kasei Co. also released a lithium-ion battery. Significant improvements in energy density were achieved in the 1990s by replacing Yoshino's soft carbon anode first with hard carbon and later with graphite. In 1990, Jeff Dahn and two colleagues at Dalhousie University (Canada) reported reversible intercalation of lithium ions into graphite in

14040-484: Was primarily time-dependent; however, after several months of stand on open circuit or float charge, state-of-charge dependent losses became significant. The self-discharge rate did not increase monotonically with state-of-charge, but dropped somewhat at intermediate states of charge. Self-discharge rates may increase as batteries age. In 1999, self-discharge per month was measured at 8% at 21 °C, 15% at 40 °C, 31% at 60 °C. By 2007, monthly self-discharge rate

14160-462: Was released in 2011 and was available for sale. In October 2010 Lotus Engineering unveiled the Lotus CityCar , a plug-in series hybrid concept car designed for flex-fuel operation on ethanol , or methanol as well as regular gasoline. The lithium battery pack provides an all-electric range of 60 kilometres (37 mi), and the 1.2-liter flex-fuel engine kicks in to allow to extend

14280-704: Was released in Japan in January 2012, followed by the United States in February 2012. Deliveries of the Prius PHV in Europe began in late June 2012. The Ford C-Max Energi was released in the U.S. in October 2012, the Volvo V60 Plug-in Hybrid in Sweden by late 2012. The Honda Accord Plug-in Hybrid was released in selected U.S. markets in January 2013, and the Mitsubishi Outlander P-HEV in Japan in January 2013, becoming

14400-458: Was the first hybrid electric car. Early hybrids could be charged from an external source before operation. The term "plug-in hybrid" has come to mean a hybrid vehicle that can be charged from a standard electrical wall socket. The term "plug-in hybrid electric vehicle" was coined by UC Davis Professor Andrew Frank , who has been called the "father of the modern plug-in hybrid". The July 1969 issue of Popular Science featured an article on

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