History Of The Lithium-ion Battery
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Varta_lithium-ion_battery,_Museum_Autovision,_Altlussheim.html" ;"title="Museum_Autovision.html" ;"title="Varta lithium-ion battery, Museum Autovision">Varta lithium-ion battery, Museum Autovision, Altlussheim">Museum_Autovision.html" ;"title="Varta lithium-ion battery, Museum Autovision">Varta lithium-ion battery, Museum Autovision, Altlussheim, Germany This is a history of the
lithium-ion battery A lithium-ion or Li-ion battery is a type of rechargeable battery which uses the reversible reduction of lithium ions to store energy. It is the predominant battery type used in portable consumer electronics and electric vehicles. It also se ...
.


Prior work

Much of the basic research that led to the development of the Intercalation (chemistry), intercalation compounds that form the core of lithium-ion batteries was carried out in the 1960s by Robert Huggins and
Carl Wagner Carl Wilhelm Wagner (May 25, 1901 – December 10, 1977) was a German Physical chemist. He is best known for his pioneering work on Solid-state chemistry, where his work on oxidation rate theory, counter diffusion of ions and defect chemistry ...
, who studied the movement of
ion An ion () is an atom or molecule with a net electrical charge. The charge of an electron is considered to be negative by convention and this charge is equal and opposite to the charge of a proton, which is considered to be positive by conve ...
s in solids. Reversible intercalation of lithium ions into graphite as anodes and intercalation of lithium ions into cathodic oxide as cathodes was discovered during 1974–76 by
Jürgen Otto Besenhard Jürgen or Jurgen is a popular masculine given name in Germany, Estonia, Belgium and the Netherlands. It is cognate with George. Notable people named Jürgen include: A *Jürgen Ahrend (born 1930), German organ builder *Jürgen Alzen (born 19 ...
at TU Munich. Besenhard proposed its application in lithium cells. Electrolyte decomposition and solvent co-intercalation into graphite were severe early drawbacks for battery life. British chemist
M. Stanley Whittingham Michael Stanley Whittingham (born 22 December 1941) is a British-American chemist. He is currently a professor of chemistry and director of both the Institute for Materials Research and the Materials Science and Engineering program at Binghamton ...
, then a researcher at ExxonMobil, first reported a rechargeable
lithium-ion battery A lithium-ion or Li-ion battery is a type of rechargeable battery which uses the reversible reduction of lithium ions to store energy. It is the predominant battery type used in portable consumer electronics and electric vehicles. It also se ...
(a precursor to modern lithium-ion batteries) in the 1970s. Drawing on previous research from his time at
Stanford University Stanford University, officially Leland Stanford Junior University, is a private research university in Stanford, California. The campus occupies , among the largest in the United States, and enrolls over 17,000 students. Stanford is consider ...
, he used a layered titanium(IV) sulfide as cathode and as anode. However, this setup proved impractical. Titanium disulfide was expensive (~$1,000 per kilogram in the 1970s) and difficult to work with, since it has to be synthesized under completely oxygen and moisture-free conditions. When exposed to air, it reacts to form
hydrogen sulfide Hydrogen sulfide is a chemical compound with the formula . It is a colorless chalcogen-hydride gas, and is poisonous, corrosive, and flammable, with trace amounts in ambient atmosphere having a characteristic foul odor of rotten eggs. The unde ...
compounds, which have an unpleasant odour and are toxic to humans and most animals. For this, and other reasons, Exxon discontinued development of Whittingham's lithium-titanium disulfide battery. Batteries with metallic lithium electrodes presented safety issues, as lithium metal reacts with water, releasing flammable hydrogen gas. Consequently, research moved to develop batteries in which, instead of metallic lithium, only lithium compounds are present, being capable of accepting and releasing lithium ions.


Development

* ''1973'':
Adam Heller Adam Heller (born June 25, 1933) is an Israeli American scientist and engineer. He is Chief Science Officer of SynAgile Corp. of Wilson, Wyoming, consults to Abbott Diabetes Care of Alameda, California, and is Ernest Cockrell Sr. Chair Emeritus ...
proposed the lithium thionyl chloride battery, still used in implanted medical devices and in defense systems where a greater than 20-year shelf life, high energy density, and/or tolerance for extreme operating temperatures are required. * ''1977'': Samar Basu et al demonstrated irreversible intercalation of lithium in graphite at the
University of Pennsylvania The University of Pennsylvania (also known as Penn or UPenn) is a private research university in Philadelphia. It is the fourth-oldest institution of higher education in the United States and is ranked among the highest-regarded universitie ...
. This led to the development of a workable lithium intercalated graphite electrode at
Bell Labs Nokia Bell Labs, originally named Bell Telephone Laboratories (1925–1984), then AT&T Bell Laboratories (1984–1996) and Bell Labs Innovations (1996–2007), is an American industrial research and scientific development company owned by mult ...
in 1984 () to provide an alternative to the lithium metal electrode battery. However it was only a molten salt cell battery rather than a lithium ion battery. * ''1979'': Working in separate groups, Ned A. Godshall et al., and, shortly thereafter, John B. Goodenough (
Oxford University Oxford () is a city in England. It is the county town and only city of Oxfordshire. In 2020, its population was estimated at 151,584. It is north-west of London, south-east of Birmingham and north-east of Bristol. The city is home to the ...
) and
Koichi Mizushima is a Japanese former gymnast who competed in the 1988 Summer Olympics The 1988 Summer Olympics (), officially known as the Games of the XXIV Olympiad () and commonly known as Seoul 1988 ( ko, 서울 1988, Seoul Cheon gubaek palsip-p ...
(
Tokyo University , abbreviated as or UTokyo, is a public research university located in Bunkyō, Tokyo, Japan. Established in 1877, the university was the first Imperial University and is currently a Top Type university of the Top Global University Project by ...
), demonstrated a rechargeable lithium cell with voltage in the 4 V range using lithium cobalt dioxide () as the positive electrode and lithium metal as the negative electrode. This innovation provided the positive electrode material that enabled early commercial lithium batteries. is a stable positive electrode material which acts as a donor of lithium ions, which means that it can be used with a negative electrode material other than lithium metal. By enabling the use of stable and easy-to-handle negative electrode materials, enabled novel rechargeable battery systems. Godshall et al. further identified the similar value of ternary compound lithium-transition metal-oxides such as the
spinel Spinel () is the magnesium/aluminium member of the larger spinel group of minerals. It has the formula in the cubic crystal system. Its name comes from the Latin word , which means ''spine'' in reference to its pointed crystals. Properties S ...
LiMn2O4, Li2MnO3, LiMnO2, LiFeO2, LiFe5O8, and LiFe5O4 (and later lithium-copper-oxide and lithium-nickel-oxide cathode materials in 1985) * ''1980'': Rachid Yazami demonstrated the reversible electrochemical intercalation of lithium in graphite, and invented the lithium graphite electrode (anode). The organic electrolytes available at the time would decompose during charging with a graphite negative electrode. Yazami used a solid electrolyte to demonstrate that lithium could be reversibly intercalated in graphite through an electrochemical mechanism. As of 2011, Yazami's graphite electrode was the most commonly used electrode in commercial lithium-ion batteries. *The negative electrode has its origins in PAS (polyacenic semiconductive material) discovered by Tokio Yamabe and later by Shjzukuni Yata in the early 1980s. The seed of this technology was the discovery of conductive polymers by Professor
Hideki Shirakawa is a Japanese chemist, engineer, and Professor Emeritus at the University of Tsukuba and Zhejiang University. He is best known for his discovery of conductive polymers. He was co-recipient of the 2000 Nobel Prize in Chemistry jointly with Alan Ma ...
and his group, and it could also be seen as having started from the polyacetylene lithium ion battery developed by
Alan MacDiarmid Alan Graham MacDiarmid, ONZ FRS (14 April 1927 – 7 February 2007) was a New Zealand-born American chemist, and one of three recipients of the Nobel Prize for Chemistry in 2000. Early life and education MacDiarmid was born in Masterton, New ...
and Alan J. Heeger et al. * ''1982'': Godshall et al. were awarded for the use of LiCoO2 as cathodes in lithium batteries, based on Godshall's Stanford University Ph.D. dissertation and 1979 publications. * ''1983'': Michael M. Thackeray,
Peter Bruce Sir Peter George Bruce, is a British chemist, and Wolfson Professor of Materials in the Department of Materials at the University of Oxford. In 2018, he was appointed as Physical Secretary and Vice President of the Royal Society. Bruce is a ...
, William David, and John B. Goodenough developed
manganese Manganese is a chemical element with the symbol Mn and atomic number 25. It is a hard, brittle, silvery metal, often found in minerals in combination with iron. Manganese is a transition metal with a multifaceted array of industrial alloy use ...
spinel Spinel () is the magnesium/aluminium member of the larger spinel group of minerals. It has the formula in the cubic crystal system. Its name comes from the Latin word , which means ''spine'' in reference to its pointed crystals. Properties S ...
, Mn2O4, as a charged cathode material for lithium-ion batteries. It has two flat plateaus on discharge with lithium one at 4V, stoichiometry LiMn2O4, and one at 3V with a final stoichiometry of Li2Mn2O4. * ''1985'':
Akira Yoshino is a Japanese chemist. He is a fellow of Asahi Kasei Corporation and a professor at Meijo University in Nagoya. He created the first safe, production-viable lithium-ion battery which became used widely in cellular phones and notebook computer ...
assembled a prototype cell using carbonaceous material into which lithium ions could be inserted as one electrode, and lithium cobalt oxide () as the other. This dramatically improved safety. enabled industrial-scale production and enabled the commercial lithium-ion battery. * ''1989'':
Arumugam Manthiram Arumugam Manthiram (; born March 15, 1951) is an American materials scientist and engineer, best known for his identification of the polyanion class of lithium ion battery cathodes, understanding of how chemical instability limits the capacity of ...
and John B. Goodenough discovered the
polyanion Polyelectrolytes are polymers whose repeating units bear an electrolyte group. Polycations and polyanions are polyelectrolytes. These groups dissociate in aqueous solutions (water), making the polymers charged. Polyelectrolyte properties are t ...
class of cathodes. They showed that positive electrodes containing
polyanion Polyelectrolytes are polymers whose repeating units bear an electrolyte group. Polycations and polyanions are polyelectrolytes. These groups dissociate in aqueous solutions (water), making the polymers charged. Polyelectrolyte properties are t ...
s, e.g.,
sulfate The sulfate or sulphate ion is a polyatomic anion with the empirical formula . Salts, acid derivatives, and peroxides of sulfate are widely used in industry. Sulfates occur widely in everyday life. Sulfates are salts of sulfuric acid and many ...
s, produce higher voltages than oxides due to the
inductive effect In chemistry, the inductive effect in a molecule is a local change in the electron density due to electron-withdrawing or electron-donating groups elsewhere in the molecule, resulting in a permanent dipole in a bond. It is present in a σ (sigma ...
of the polyanion. This polyanion class contains materials such as
lithium iron phosphate Lithium iron phosphate or lithium ferro-phosphate (LFP) is an inorganic compound with the formula . It is a gray, red-grey, brown or black solid that is insoluble in water. The material has attracted attention as a component of lithium iron phosp ...
. * ''1990'':
Jeff Dahn Jeff Dahn (born in 1957 in the United States and emigrated to Nova Scotia, Canada in 1970) is a Professor in the Department of Physics & Atmospheric Science and the Department of Chemistry at Dalhousie University. He is recognized as one of the pio ...
and two colleagues at Dalhousie University reported reversible intercalation of lithium ions into graphite in the presence of ethylene carbonate solvent, thus finding the final piece of the puzzle leading to the modern lithium-ion battery.


Commercialization and advances

The performance and capacity of lithium-ion batteries increased as development progressed. * ''1991'':
Sony , commonly stylized as SONY, is a Japanese multinational conglomerate corporation headquartered in Minato, Tokyo, Japan. As a major technology company, it operates as one of the world's largest manufacturers of consumer and professional ...
and
Asahi Kasei is a multinational Japanese chemical company. Its main products are chemicals and materials science. It was founded in May 1931, using the paid in capital of Nobeoka Ammonia Fiber Co., Ltd, a Nobeoka, Miyazaki based producer of ammonia, nit ...
released the first commercial lithium-ion battery. The Japanese team that successfully commercialized the technology was led by Yoshio Nishi. * ''1996'': Goodenough, Akshaya Padhi and coworkers proposed
lithium iron phosphate Lithium iron phosphate or lithium ferro-phosphate (LFP) is an inorganic compound with the formula . It is a gray, red-grey, brown or black solid that is insoluble in water. The material has attracted attention as a component of lithium iron phosp ...
() and other phospho-
olivine The mineral olivine () is a magnesium iron silicate with the chemical formula . It is a type of nesosilicate or orthosilicate. The primary component of the Earth's upper mantle, it is a common mineral in Earth's subsurface, but weathers quickl ...
s (lithium metal phosphates with the same structure as mineral
olivine The mineral olivine () is a magnesium iron silicate with the chemical formula . It is a type of nesosilicate or orthosilicate. The primary component of the Earth's upper mantle, it is a common mineral in Earth's subsurface, but weathers quickl ...
) as positive electrode materials. * ''1998'': C. S. Johnson, J. T. Vaughey, M. M. Thackeray, T. E. Bofinger, and S. A. Hackney report the discovery of the high capacity high voltage lithium-rich NMC cathode materials. * ''2001'':
Arumugam Manthiram Arumugam Manthiram (; born March 15, 1951) is an American materials scientist and engineer, best known for his identification of the polyanion class of lithium ion battery cathodes, understanding of how chemical instability limits the capacity of ...
and co-workers discovered that the capacity limitations of layered oxide cathodes is a result of chemical instability that can be understood based on the relative positions of the metal 3d band relative to the top of the oxygen 2p band. This discovery has had significant implications for the practically accessible compositional space of lithium ion battery layered oxide cathodes, as well as their stability from a safety perspective. * ''2001'': Christopher Johnson, Michael Thackeray, Khalil Amine, and Jaekook Kim file a patent for
lithium nickel manganese cobalt oxide Lithium nickel manganese cobalt oxides (abbreviated Li-NMC, LNMC, or NMC) are mixed metal oxides of lithium, nickel, manganese and cobalt. They have the general formula LiNi''x''Mn''y''Co''z''O2. The most important representatives have a composition ...
(NMC) lithium rich cathodes based on a domain structure. * ''2001'': Zhonghua Lu and
Jeff Dahn Jeff Dahn (born in 1957 in the United States and emigrated to Nova Scotia, Canada in 1970) is a Professor in the Department of Physics & Atmospheric Science and the Department of Chemistry at Dalhousie University. He is recognized as one of the pio ...
file a patent for the NMC class of positive electrode materials, which offers safety and energy density improvements over the widely used lithium cobalt oxide. * ''2002'': Yet-Ming Chiang and his group at
MIT The Massachusetts Institute of Technology (MIT) is a private land-grant research university in Cambridge, Massachusetts. Established in 1861, MIT has played a key role in the development of modern technology and science, and is one of the m ...
showed a substantial improvement in the performance of lithium batteries by boosting the material's conductivity by doping it with
aluminium Aluminium (aluminum in American and Canadian English) is a chemical element with the symbol Al and atomic number 13. Aluminium has a density lower than those of other common metals, at approximately one third that of steel. I ...
,
niobium Niobium is a chemical element with chemical symbol Nb (formerly columbium, Cb) and atomic number 41. It is a light grey, crystalline, and ductile transition metal. Pure niobium has a Mohs hardness rating similar to pure titanium, and it has sim ...
and
zirconium Zirconium is a chemical element with the symbol Zr and atomic number 40. The name ''zirconium'' is taken from the name of the mineral zircon, the most important source of zirconium. The word is related to Persian '' zargun'' (zircon; ''zar-gun'' ...
. The exact mechanism causing the increase became the subject of widespread debate. * ''2004'': Yet-Ming Chiang again increased performance by utilizing
lithium iron phosphate Lithium iron phosphate or lithium ferro-phosphate (LFP) is an inorganic compound with the formula . It is a gray, red-grey, brown or black solid that is insoluble in water. The material has attracted attention as a component of lithium iron phosp ...
particles of less than 100 nanometers in diameter. This decreased particle density almost one hundredfold, increased the positive electrode's surface area and improved capacity and performance. Commercialization led to a rapid growth in the market for higher capacity lithium-ion batteries, as well as a patent infringement battle between Chiang and
John Goodenough John Bannister Goodenough ( ; born July 25, 1922) is an American materials scientist, a solid-state physicist, and a Nobel laureate in chemistry. He is a professor of Mechanical, Materials Science, and Electrical Engineering at the University ...
. *''2005'': Y Song, PY Zavalij, and
M. Stanley Whittingham Michael Stanley Whittingham (born 22 December 1941) is a British-American chemist. He is currently a professor of chemistry and director of both the Institute for Materials Research and the Materials Science and Engineering program at Binghamton ...
report a new two-electron vanadium phosphate cathode material with high energy density * ''2011'':
Lithium nickel manganese cobalt oxide Lithium nickel manganese cobalt oxides (abbreviated Li-NMC, LNMC, or NMC) are mixed metal oxides of lithium, nickel, manganese and cobalt. They have the general formula LiNi''x''Mn''y''Co''z''O2. The most important representatives have a composition ...
(NMC) cathodes, developed at Argonne National Laboratory, are manufactured commercially by BASF in Ohio. * ''2011'': Lithium-ion batteries accounted for 66% of all portable secondary (i.e., rechargeable) battery sales in Japan. * ''2012'': John Goodenough, Rachid Yazami and
Akira Yoshino is a Japanese chemist. He is a fellow of Asahi Kasei Corporation and a professor at Meijo University in Nagoya. He created the first safe, production-viable lithium-ion battery which became used widely in cellular phones and notebook computer ...
received the 2012
IEEE Medal for Environmental and Safety Technologies The Institute of Electrical and Electronics Engineers (IEEE) is a 501(c)(3) professional association for electronic engineering and electrical engineering (and associated disciplines) with its corporate office in New York City and its operati ...
for developing the lithium ion battery. * ''2014'': John Goodenough, Yoshio Nishi, Rachid Yazami and Akira Yoshino were awarded the
Charles Stark Draper Prize The U.S. National Academy of Engineering annually awards the Draper Prize, which is given for the advancement of engineering and the education of the public about engineering. It is one of three prizes that constitute the "Nobel Prizes of Enginee ...
of the
National Academy of Engineering The National Academy of Engineering (NAE) is an American nonprofit, non-governmental organization. The National Academy of Engineering is part of the National Academies of Sciences, Engineering, and Medicine, along with the National Academy ...
for their pioneering efforts in the field. * ''2014'': Commercial batteries from Amprius Corp. reached 650 Wh/ L (a 20% increase), using a silicon anode and were delivered to customers. * ''2016'':
Koichi Mizushima is a Japanese former gymnast who competed in the 1988 Summer Olympics The 1988 Summer Olympics (), officially known as the Games of the XXIV Olympiad () and commonly known as Seoul 1988 ( ko, 서울 1988, Seoul Cheon gubaek palsip-p ...
and Akira Yoshino received the NIMS Award from the
National Institute for Materials Science is an Independent Administrative Institution and one of the largest scientific research centers in Japan. History The growth and development of today's scientific research center has passed through several phases in a number of locations: In ...
, for Mizushima's discovery of the LiCoO2 cathode material for the lithium-ion battery and Yoshino's development of the lithium-ion battery. * ''2016'': Z. Qi, and Gary Koenig reported a scalable method to produce sub-micrometer sized using a template-based approach. * ''2019'': The
Nobel Prize in Chemistry ) , image = Nobel Prize.png , alt = A golden medallion with an embossed image of a bearded man facing left in profile. To the left of the man is the text "ALFR•" then "NOBEL", and on the right, the text (smaller) "NAT•" then "M ...
was given to John Goodenough, Stanley Whittingham and Akira Yoshino "for the development of lithium ion batteries". * ''2022'': Battery startup SPARKZ announced plans to convert a glass plant in Bridgeport, WV to produce zero-
cobalt Cobalt is a chemical element with the symbol Co and atomic number 27. As with nickel, cobalt is found in the Earth's crust only in a chemically combined form, save for small deposits found in alloys of natural meteoric iron. The free element, pr ...
lithium batteries Lithium battery may refer to: * Lithium metal battery, a non-rechargeable battery with lithium as an anode ** Rechargeable lithium metal battery, a rechargeable counterpart to the lithium metal battery * Lithium-ion battery, a rechargeable batte ...
.


Market

Industry produced about 660 million cylindrical lithium-ion cells in 2012; the 18650 size is by far the most popular for cylindrical cells. If Tesla were to have met its goal of shipping 40,000
Model S The Tesla Model S is a battery-powered liftback car serving as the flagship model of Tesla, Inc. The Model S features a dual-motor, all-wheel drive layout, although earlier versions of the Model S featured a rear-motor and rear-wheel drive l ...
electric cars in 2014 and if the 85-kWh battery, which uses 7,104 of these cells, had proved as popular overseas as it was in the United States, a 2014 study projected that the Model S alone would use almost 40 percent of estimated global cylindrical battery production during 2014. , production was gradually shifting to higher-capacity 3,000+ mAh cells. Annual flat polymer cell demand was expected to exceed 700 million in 2013. Prices of lithium-ion batteries have fallen over time. Overall, between 1991 and 2018, prices for all types of lithium-ion cells (in dollars per kWh) fell approximately 97%. Over the same time period, energy density more than tripled. Efforts to increase energy density contributed significantly to cost reduction. In 2015, cost estimates ranged from $300–500/kWh. In 2016 GM revealed they would be paying for the batteries in the Chevy Bolt EV. In 2017, the average residential energy storage systems installation cost was expected to drop from $1600 /kWh in 2015 to $250 /kWh by 2040 and to see the price with 70% reduction by 2030. In 2019, some electric vehicle battery pack costs were estimated at $150–200, and VW noted it was paying for its next generation of electric vehicles. Batteries are used for grid energy storage and
ancillary services Ancillary services are the services necessary to support the transmission of electric power from generators to consumers given the obligations of control areas and transmission utilities within those control areas to maintain reliable operations of ...
. For a Li-ion storage coupled with photovoltaics and an anaerobic digestion biogas power plant, Li-ion will generate a higher profit if it is cycled more frequently (hence a higher lifetime electricity output) although the lifetime is reduced due to degradation.
Lithium nickel manganese cobalt oxide Lithium nickel manganese cobalt oxides (abbreviated Li-NMC, LNMC, or NMC) are mixed metal oxides of lithium, nickel, manganese and cobalt. They have the general formula LiNi''x''Mn''y''Co''z''O2. The most important representatives have a composition ...
(NMC) cells come in several commercial types, specified by the ratio of component metals. NMC 111 (or NMC 333) have equal parts of nickel, manganese and cobalt, whereas NMC 532 has 5 parts nickel, 3 parts manganese and 2 parts cobalt. , NMC 532 and NMC 622 were the preferred low-cobalt types for electric vehicles, with NMC 811 and even lower cobalt ratios seeing increasing use, mitigating cobalt dependency. However, cobalt for electric vehicles increased 81% from the first half of 2018 to 7,200 tonnes in the first half of 2019, for a battery capacity of 46.3 GWh. In 2010, global lithium-ion battery production capacity was 20 gigawatt-hours. By 2016, it was 28 GWh, with 16.4 GWh in China. 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. An antitrust-violating price-fixing cartel among nine corporate families, including
LG Chem LG Chem Ltd. (Korean: LG화학), often referred to as LG Chemical, is the largest Korean chemical company and is headquartered in Seoul, South Korea. It was the 10th largest chemical company in the world by sales in 2017. It was first established ...
,
GS Yuasa is a Kyoto-based Japanese company specializing in the development and production of lead acid and lithium-ion batteries, used in automobiles, motorcycles and other areas including aerospace and defense applications. History Yuasa In 1909, ...
,
Hitachi Maxell , commonly known as Maxell, is a Japanese company that manufactures consumer electronics. The company's name is a contraction of "Maximum capacity dry cell". Its main products are batteries, wireless charging products, storage devices, LCD/laser ...
,
NEC is a Japanese multinational information technology and electronics corporation, headquartered in Minato, Tokyo. The company was known as the Nippon Electric Company, Limited, before rebranding in 1983 as NEC. It provides IT and network soluti ...
,
Panasonic formerly between 1935 and 2008 and the first incarnation of between 2008 and 2022, is a major Japanese multinational corporation, multinational Conglomerate (company), conglomerate corporation, headquartered in Kadoma, Osaka, Kadoma, Osaka P ...
/
Sanyo , stylized as SANYO, is a Japanese electronics company and formerly a member of the Fortune Global 500, ''Fortune'' Global 500 whose headquarters was located in Moriguchi, Osaka, Moriguchi, Osaka prefecture, Japan. Sanyo had over 230 subsidiari ...
,
Samsung The Samsung Group (or simply Samsung) ( ko, 삼성 ) is a South Korean multinational manufacturing conglomerate headquartered in Samsung Town, Seoul, South Korea. It comprises numerous affiliated businesses, most of them united under the ...
,
Sony , commonly stylized as SONY, is a Japanese multinational conglomerate corporation headquartered in Minato, Tokyo, Japan. As a major technology company, it operates as one of the world's largest manufacturers of consumer and professional ...
, and
Toshiba , commonly known as Toshiba and stylized as TOSHIBA, is a Japanese multinational conglomerate corporation headquartered in Minato, Tokyo, Japan. Its diversified products and services include power, industrial and social infrastructure system ...
was found to be rigging battery prices and restricting output between 2000 and 2011.https://www.batteriesdirectpurchaserantitrustsettlement.com/Content/Documents/Complaint.pdf


References

{{reflist Lithium-ion batteries History of technology History of electrical engineering