Up-to-date development of lithium-ion batteries in Japan

Inaba, Masaaki; Ogumi, Zempachi

doi:10.1109/57.969941

Cited by 16 publications

(8 citation statements)

References 82 publications

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“…Rechargeable Li-ion batteries with high energy density have become the most promising power sources for a variety of portable electronic devices since the first commercialization of the battery in 1991 by Sony [1]. Recently, many materials which are cost-effective, safe and environment friendly compared with the widely used commercial LiCoO 2 cathode have been investigated [2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Structural and thermal properties of LiNi0.6−xMgxCo0.25Mn0.15O2 cathode materials

Liao

Duh

Sheu

2008

Journal of Power Sources

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Section: Introductionmentioning

confidence: 99%

Structural and thermal properties of LiNi0.6−xMgxCo0.25Mn0.15O2 cathode materials

Liao

Duh

Sheu

2008

Journal of Power Sources

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“…Até a década de 80 o lítio metálico e suas ligas metálicas eram utilizados como materiais anódicos em combinação com vários materiais catódicos em baterias de íons lítio [4]. O lítio metálico é o material mais atraente para o uso como anodo em baterias recarregáveis devido ao seu potencial (-3,045 V vs. eletrodo padrão de hidrogênio) e sua alta capacidade específica (3860 mA.h.g -1 ) [43,44]. Por mais de duas décadas o lítio metálico foi largamente utilizado como anodo em células primárias de lítio.…”

Section: Materiais Anódicosunclassified

Materiais cerâmicos de inserção aplicados a baterias de íons lítio

et al. 2008

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ResumoEsta revisão visa ser uma introdução à aplicação de materiais cerâmicos em dispositivos de armazenamento de energia, em especial baterias secundárias de íons lítio, dispositivos nos quais os materiais cerâmicos, especialmente óxidos, são muito importantes em todas as partes do dispositivo. A revisão está focada nos materiais cerâmicos para catodos e anodos, partes chaves destes dispositivos. Ela tem por principal finalidade ser uma fonte de informação para aqueles que desejem trabalhar com o desenvolvimento de materiais cerâmicos para tais tipos de dispositivos. Aspectos relacionados à nanotecnologia e materiais óxidos nanoestruturados para esta área são discutidos ao final do artigo. Palavras-chave: baterias de íons lítio, reações de inserção, nanoestruturas. AbstractThis paper aims to be an introductory text on the applications of ceramic materials to energy storage devices, mainly lithium ion secondary batteries, i.e. devices in which the ceramic materials, e.g. oxides, are very important in all parts of the device. This review is focused in ceramic materials for cathodes and anodes, which are key parts of the battery device. The main purpose is, therefore, to offer to the reader, who is interested in the development of ceramic materials for storage devices, enough information concerning the main oxide materials used nowadays and promising technology regarding nanoestructured oxides and electrode geometry based on the nanoscale.

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“…Nowadays, lithium-ion batteries are considered the only viable energy storage device for hybrid electric vehicle (HEV) or electric vehicle (EV) applications due to its high energy density and low self-discharge rate [1], [2]. However, since the cell voltage of lithium-ion battery is low about 4V, the series connected battery string is required for driving a high voltage electric motor in EV and HEV [3].…”

Section: Introductionmentioning

confidence: 99%

Automatic charge equalization circuit based on regulated voltage source for series connected lithium-ion batteries

Kim

et al. 2011

8th International Conference on Power Electronics - ECCE Asia

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In the lithium-ion batteries for electric vehicle applications, the charge equalizer is required to enhance life time and guarantee safety. For efficient charge equalization, a cell voltage sensing module should be used. However, the cost of the sensing module is relatively high. Thus, to achieve higher equalization performance without the cell voltage sensing module, a new automatic charge equalizer based on regulated voltage source is proposed. A fast regulated voltage source with average voltage of the batteries is implemented by a bidirectional dc-dc converter. The charge equalization can be automatically achieved by periodic connections between battery cells and regulated voltage source without the sensing module. The high equalization performance can be obtained by proposed reference voltage modulation and advanced skip mode. The operational principles and design considerations of the proposed equalizer are presented and equalization performance is verified by the prototype with 7Ah lithiumion batteries.Index Terms--charge equalization, battery equalizer, lithium-ion battery, cell balancing.

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Up-to-date development of lithium-ion batteries in Japan

Cited by 16 publications

References 82 publications

Structural and thermal properties of LiNi0.6−xMgxCo0.25Mn0.15O2 cathode materials

Structural and thermal properties of LiNi0.6−xMgxCo0.25Mn0.15O2 cathode materials

Materiais cerâmicos de inserção aplicados a baterias de íons lítio

Automatic charge equalization circuit based on regulated voltage source for series connected lithium-ion batteries

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