发明名称 |
NONAQUEOUS ELECTROLYTE SOLUTION AND LITHIUM SECONDARY BATTERY USING SAME |
摘要 |
Disclosed is a lithium secondary battery which is excellent in battery characteristics such as long-term cycle characteristics, capacity and shelf life characteristics. Also disclosed is a nonaqueous electrolyte solution which can be used for such a lithium secondary battery. Specifically disclosed is a nonaqueous electrolyte solution for lithium secondary batteries obtained by dissolving an electrolyte salt in a nonaqueous solvent which is characterized by containing 0.01-10% by weight of a carboxylate compound represented by the general formula (I) below and 0.01-10% by weight or 0.01-10% by volume of a vinylene carbonate and/or 1,3-propane sultone. Also disclosed is a lithium secondary battery using such a nonaqueous electrolyte solution. (In the formula, R<2> represents a hydrogen atom or COOR<3> group, R<1> and R<3> respectively represent an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group or a phenyl group, and X represents an alkynylene group or an alkenylene group.) |
申请公布号 |
WO2005122318(A1) |
申请公布日期 |
2005.12.22 |
申请号 |
WO2005JP09049 |
申请日期 |
2005.05.18 |
申请人 |
UBE INDUSTRIES, LTD.;ABE, KOJI;KUWATA, TAKAAKI;TAKEMOTO, HIROFUMI |
发明人 |
ABE, KOJI;KUWATA, TAKAAKI;TAKEMOTO, HIROFUMI |
分类号 |
H01M10/0525;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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