发明名称 |
NONAQUEOUS ELECTROLYTE, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY USING IT |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a high-energy-density nonaqueous electrolyte secondary battery having high charge-discharge efficiency, and excellent in a capacity maintenance characteristic, a battery characteristic in a broad temperature range, and safety; and to provide an electrolyte used for it. <P>SOLUTION: This nonaqueous electrolyte is prepared by dissolving a lithium salt in a nonaqueous solvent. The nonaqueous solvent contains an aromatic compound expressed by formula I. R<SP>1</SP>and R<SP>2</SP>each independently represent an alkyl group that may have a substituted group, or R<SP>1</SP>and R<SP>2</SP>form a hydrocarbon ring that may have a substituted group by being bonded to each other. The ring A may have an electron-absorbing substituted group at a carbon atom located at a para-position of a carbon atom bonded to R<SP>1</SP>R<SP>2</SP>CH-, and may have substituted groups at the carbon atoms located at other positions. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
申请公布号 |
JP2004349132(A) |
申请公布日期 |
2004.12.09 |
申请号 |
JP20030145312 |
申请日期 |
2003.05.22 |
申请人 |
MITSUBISHI CHEMICALS CORP |
发明人 |
TAKEHARA MASAHIRO;SHIMA KUNIHISA |
分类号 |
H01M10/05;H01M4/02;H01M4/36;H01M4/38;H01M4/40;H01M4/587;H01M10/052;H01M10/0567;H01M10/0568;H01M10/0569 |
主分类号 |
H01M10/05 |
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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