发明名称 |
Lithium secondary battery |
摘要 |
The present invention provides a lithium secondary battery which has improved safety, mainly coming from use of an electrolyte solution which is not inflammable at room temperature (20°C), while not deteriorating output characteristics at low temperatures and room temperature or output maintenance characteristics after storage at high temperature (50°C). The lithium secondary battery of the present invention, encased in a container, is provided with a cathode and an anode, both capable of storing/releasing lithium ions, a separator which separates these electrodes from each other, and an electrolyte solution containing a cyclic carbonate and a linear carbonate as solvents and a compound such as VC at composition ratios of 18.0 to 30.0%, 74.0 to 81.9% and 0.1 to 1.0%, respectively, based an the whole solvents, all percentages by volume. |
申请公布号 |
EP2320512(B1) |
申请公布日期 |
2012.09.12 |
申请号 |
EP20110153916 |
申请日期 |
2008.01.24 |
申请人 |
HITACHI VEHICLE ENERGY, LTD. |
发明人 |
OKUMURA, TAKEFUMI;YAMAKI, TAKAHIRO;YOSHIKAWA, MASANORI;YANAI, YOSHIMI;YUASA, TOYOTAKA |
分类号 |
H01M4/131;H01M10/0569;C01B31/02;H01M4/133;H01M4/48;H01M4/505;H01M4/525;H01M4/58;H01M4/587;H01M4/62;H01M6/16;H01M10/0525 |
主分类号 |
H01M4/131 |
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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