发明名称 |
NON-AQUEOUS ELECTROLYTE SOLUTION AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME |
摘要 |
The present invention provides a lithium secondary battery which is improved in cycle characteristics and storage stability at an elevated temperature as well as protection from overcharge. In the battery, generation of a gas is also inhibited to prevent the battery from expansion. A non-aqueous electrolytic solution for the lithium secondary battery has an electrolyte in a non-aqueous solvent. The non-aqueous solvent is composed of a cyclic carbonate compound, a linear carbonate compound and a cyclohexylbenzene compound having a benzene ring to which one or two halogen atoms are attached. A volume ratio of the cyclic carbonate compound and the linear carbonate compound in the non-aqueous solvent is in the range of 20:80 to 40:60, or the non-aqueous solvent further contains a small amount of a branched alkylbenzene compound. |
申请公布号 |
EP1691441(B1) |
申请公布日期 |
2012.03.07 |
申请号 |
EP20040818499 |
申请日期 |
2004.11.11 |
申请人 |
UBE INDUSTRIES, LTD. |
发明人 |
ABE, KOJI;HATTORI, TAKASHI;MATSUMORI, YASUO |
分类号 |
H01M10/0525;H01M4/131;H01M4/133;H01M10/0567;H01M10/0569;H01M10/36 |
主分类号 |
H01M10/0525 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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