发明名称 |
Nonaqueous electrolyte for improving performance and lithium secondary battery comprising the same |
摘要 |
Disclosed is a lithium secondary battery comprising a cathode, an anode, an electrolyte and a separator, wherein the anode comprises an anode active material having a specific surface area of 3 m2/g or less, and the electrolyte comprises 0.1˜6 parts by weight of a propane sultone-based compound based on 100 parts by weight of the electrolyte. The lithium secondary battery solves the problem of performance degradation caused by the use of an increased amount of a propane sultone-based compound required to form a SEI film on the surface of an anode upon the first charge cycle. Also, the lithium secondary battery can provide improved cycle characteristics and high-temperature storage characteristics. |
申请公布号 |
US8119292(B2) |
申请公布日期 |
2012.02.21 |
申请号 |
US20060521892 |
申请日期 |
2006.09.15 |
申请人 |
LEE HO CHUN;PARK TAE YOON;CHOI YONG SU;YOON SOO JIN;PARK HONG KYU;JUNG HYUN MIN;AHN JEONG AE;LG CHEM, LTD. |
发明人 |
LEE HO CHUN;PARK TAE YOON;CHOI YONG SU;YOON SOO JIN;PARK HONG KYU;JUNG HYUN MIN;AHN JEONG AE |
分类号 |
H01M4/131;H01M4/139;H01M10/052;H01M10/0567;H01M10/36 |
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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