发明名称 |
CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY |
摘要 |
Provided is a cathode active material for a lithium secondary battery, including a lithium-transition metal composite oxide represented by the following formula (1), which contains an excess of lithium, so as to exhibit enhanced rate characteristics under high rate charge/discharge conditions: Lii+aNi'bNi"cMndCoeO2 (1) wherein each of a, b, c, d and e has the same meaning as defined in the disclosure. The cathode active material according to the present invention includes an excess of lithium and, different from conventional technologies, a lithium-transition metal composite oxide containing a nickel element with a predetermined oxidation number, so that the active material exhibits a stable crystal structure and excellent rate characteristics under high rate charge/discharge conditions. |
申请公布号 |
WO2009048264(A3) |
申请公布日期 |
2009.06.04 |
申请号 |
WO2008KR05912 |
申请日期 |
2008.10.08 |
申请人 |
LG CHEM, LTD.;CHANG, SUNG KYUN;SHIN, HO SUK;PARK, HONG-KYU |
发明人 |
CHANG, SUNG KYUN;SHIN, HO SUK;PARK, HONG-KYU |
分类号 |
H01M4/131;H01M4/48;H01M4/485;H01M4/50;H01M4/505;H01M4/52;H01M4/525;H01M10/0525;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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