Development of lithium ion and lithium polymer batteries for electric vehicle and home-use load leveling system application

Iwahori, Toru; Mitsuishi, I; Shiraga, S; Nakajima, N; Momose, Hideto; Ozaki, Y; Taniguchi, Shuto; Awata, Hideya; Ono, Takahito; Takeuchi, Kenneth J.

doi:10.1016/s0013-4686(99)00366-7

Cited by 39 publications

(21 citation statements)

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“…[49][50][51][52][53] Unter den Metalltriflimidaten fand nur Lithiumtriflimidat, LiNTf 2 , ein unbedenklicher Ersatz für Lithiumperchlorat, eine wichtige industrielle Anwendung, als Elektrolyt in Batterien für Elektrofahrzeuge. [54][55][56] Dieser Aufsatz konzentriert sich auf die Synthese von Metalltriflimidaten und ihre wichtigsten Anwendungen in katalytischen organischen Umwandlungen bis März 2010. Metall-bis(trifluormethansulfonyl)imidate sind unseres Wissens, außer für Lithium und Silber, nicht kommerziell erhältlich.…”

Section: Introductionunclassified

“…Metall-bis(trifluormethansulfonyl)imidate sind unseres Wissens, außer für Lithium und Silber, nicht kommerziell erhältlich. [57] Auf die Verwendung von LiNTf 2 als Elektrolyt in Lithiumbatterien [54][55][56] sowie sein elektrochemisches Verhalten [58] und die Anwendungen von organischen Triflimidatsalzen als ionische Flüssigkeiten [59][60][61] werden wir in unserem Aufsatz nicht eingehen.…”

Section: Introductionunclassified

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Metalltriflimidate sind bessere Katalysatoren für die organische Synthese als Metalltriflate – der Effekt eines stark delokalisierten Gegenions

2010

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Der steigende Bedarf an neuen selektiven und umweltverträglichen Methoden in der organischen Synthese treibt die Entwicklung effizienterer Reaktionssysteme an. In diesem Zusammenhang hat man sich häufig auf Übergangsmetalle, Liganden und Additive konzentriert; dem Gegenion des Metallkations wurde weniger Aufmerksamkeit geschenkt. Kürzlich wurden Metallsalze mit einem oder mehreren Triflimidat‐Gegenion(en) (Tf2N−) beschrieben. Triflimidate bilden eine einzigartige Katalysatorklasse mit außergewöhnlicher σ‐ und π‐Lewis‐Acidität, die durch die starke Delokalisierung der Ladung im Triflimidation sowie seine sterische Hinderung begründet wird. Daher wird praktisch kein nucleophiles Verhalten und eine hohe positive Ladungsdichte am Metallkation beobachtet, die seine Lewis‐Acidität verstärkt. Folglich sind Metalltriflimidate häufig effizienter als entsprechende ‐halogenide oder ‐triflate. Dieser Aufsatz beschreibt Methoden zur Herstellung von Metalltriflimidaten und deren Einsatz als Katalysatoren.

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Section: Introductionunclassified

Metalltriflimidate sind bessere Katalysatoren für die organische Synthese als Metalltriflate – der Effekt eines stark delokalisierten Gegenions

2010

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“…As baterias secundárias de íon-Li vêm sendo amplamente estudadas no sentido de se melhorar as aplicações dessa classe de dispositivos em veículos elétricos (por exemplo o trabalho da Lithium Battery Energy Storage Technology Research Association, LIBES 205,206 , envolvida desde 1992 no scale-up de dispositivos secundários de íon-Li). A diminuição no tamanho de aparelhos como telefones celulares, laptops, etc, torna necessário o constante aprimoramento de baterias em termos de se obter uma maior quantidade de armazenamento de carga e um maior ciclo de vida por quantidade de massa.…”

Section: Perspectivasunclassified

Materiais para cátodos de baterias secundárias de lítio

Varela¹,

Huguenin²,

Malta³

et al. 2002

Quím. Nova

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Recebido em 21/12/00; aceito em 4/7/01 MATERIALS FOR CATHODES OF SECONDARY LITHIUM BATTERIES. In this work, cathodes employed in secondary lithium batteries are reviewed. These cathodes have great technologic and scientific importance, specifically, materials for cathodes as electronic conductor polymers (ECP), transition metal oxides (TMO) and nanocomposites of ECP/TMO. The use of a specific cathodic material is based in some intrinsic characteristics that improve the performance of the battery. Thus, some vantages and disvantages of these insertion compounds are discussed, as lithium insertion capacity, energy density, and the ciclability of these materials.Keywords: secondary lithium batteries; cathodic materials; transition metal oxides; electronic conducting polymers; nanocomposites. INTRODUÇÃOUma fonte eletroquímica de potência ou bateria pode ser definida como um dispositivo capaz de converter diretamente a energia liberada numa reação química em energia elétrica. As baterias apresentam basicamente duas funções principais, a primeira é agir como fontes portáteis de potência elétrica. A segunda, que tem crescido em importância nos últimos trinta anos, está baseada na habilidade de certos sistemas eletroquímicos de armazenar a energia suprida por uma fonte externa. Tais baterias são utilizadas, em veículos elé-tricos, fontes de emergência, como parte de um sistema de fornecimento de curta duração para demandas em pico e em conjunção com fontes renováveis de energia, como solar ou eólica, por exemplo.A primeira descrição de uma bateria eletroquímica foi feita pelo italiano Alessandro Volta em 1800. Tal "descoberta" representa o marco na história da eletroquímica e, particularmente, na história dos dispositivos denominados genericamente baterias. Desde então, um notável progresso tem sido feito na área de armazenamento eletroquímico de energia. Hoje, pode-se enumerar uma grande variedade de dispositivos englobados na categoria de baterias: células metal-ar, metal-hidreto metálico (Ni-HM), níquel-cádmio (Ni-Cd), células térmicas, íons-Lítio, entre outras.O mercado para dispositivos primários consiste basicamente na produção de baterias para aparelhos portáteis. As baterias secundá-rias ou recarregáveis representam maior interesse devido à grande demanda atual de aparelhos celulares e microcomputadores portá-teis. Em 1997, por exemplo, dos 34 bilhões de dólares movimentados com baterias, 24 foram destinados às baterias secundárias 1 .Graças à simplicidade e reversibilidade das reações eletroquímicas de inserção ou intercalação, a grande maioria dos dispositivos secundários que operam à temperatura ambiente é baseada nos chamados eletrodos de inserção. Como exemplos, têm-se os dispositivos secundários aquosos, como hidreto metálico/NiOOH ou Zn/MnO 2 , que envolvem a inserção de H + no hidreto metálico 2,3 ou MnO 2 4,5. Até mesmo o mecanismo de redução do eletrodo positivo das baterias de chumbo ácido, PbO 2 6,7 pode ser atribuído ao processo de inserção de H + 8 .Considerando-se a utilização de cátions metálicos...

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“…However, traditional batteries have been unable to meet the demands of very rapid and deep charging/discharging with a very long cycle life. [1][2][3][4][5] For example, the energy and power of an "energy-type" Li ion battery were 160 Wh and 710 W, while those of a "power-type" Li ion battery were 107 Wh and 1250 W with the same weight, both manufactured by Johnson Controls-Saft Advanced Power Solutions (Joint venture between JCI and Saft). 6 These numbers illustrated that, upon increasing the power density by 76%, one third of the energy density was sacrificed by the battery.…”

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confidence: 99%

Electrochemical Energy Storage Device for Electric Vehicles

Zhang

Dong

Zheng

et al. 2011

J. Electrochem. Soc.

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Because of an improved mass transfer process, chemical energy in a liquid phase, which has been absorbed into the micro-pores of porous electrodes, may be electrochemically converted into electrical energy at a high rate and with a long cycle life. Based on this principle, we demonstrated methods for a new electrochemical storage device, which had higher specific power, a much longer cycle life than existing storage batteries and a greater specific energy than existing supercapacitors. Even at the high current rate of 80 C for deep charge/discharge, a long cycle life (30,000) and good utilization efficiency have been achieved. This new device may be developed into a new family of energy storage systems with a variety of applications. The first important practical application could be on-board, rechargeable electric energy storage devices for electric vehicles. With the growing crises concerning natural resources and environmental pollutants, it has been an urgent need to utilize energy efficiently and cleanly. Specifically, the gradual depletion of petroleum resources has led to an immediate need for the development of battery-powered electric vehicle (EV) and hybrid electric vehicle (HEV). The power source has been the most critical problem in the development of EVs. One of the key challenges in the development of such a power source has been identifying a means to deliver/ accept high input/output power.Batteries have satisfactorily met many end-user demands when charged and discharged at a moderate rate. However, traditional batteries have been unable to meet the demands of very rapid and deep charging/discharging with a very long cycle life.1-5 For example, the energy and power of an "energy-type" Li ion battery were 160 Wh and 710 W, while those of a "power-type" Li ion battery were 107 Wh and 1250 W with the same weight, both manufactured by Johnson Controls-Saft Advanced Power Solutions (Joint venture between JCI and Saft). 6 These numbers illustrated that, upon increasing the power density by 76%, one third of the energy density was sacrificed by the battery.Supercapacitors have been developed as power-type energy storage devices for EV for acceleration, hill climbing and the recovery of braking energy. However, the main disadvantages of supercapacitors have been the low energy density and high cost. [7][8][9][10][11][12][13][14] A storage device for EVs/HEVs is expected to deliver highpower energy output pulses as well as having the capacity for rapid recharge. Thus, the device should possess the combined advantages of high specific power, a long life cycle, high specific energy, safety, and low cost.Here, we introduce a new device for energy storage that was based on the electrode reaction of porous electrodes soaked in the electrochemically active material in liquid solution. This paper illustrates our pursuits for high rate, deep charge-discharge and long cycle life performances that fulfill the requirements of electric vehicles and other portable devices. The performance of this device is discussed ...

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Development of lithium ion and lithium polymer batteries for electric vehicle and home-use load leveling system application

Cited by 39 publications

References 2 publications

Metalltriflimidate sind bessere Katalysatoren für die organische Synthese als Metalltriflate – der Effekt eines stark delokalisierten Gegenions

Metalltriflimidate sind bessere Katalysatoren für die organische Synthese als Metalltriflate – der Effekt eines stark delokalisierten Gegenions

Materiais para cátodos de baterias secundárias de lítio

Electrochemical Energy Storage Device for Electric Vehicles

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