| 发明名称 |
CATHODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME |
| 摘要 |
Disclosed herein is a cathode active material for a secondary battery, which includes a combination of one or more selected from compounds represented by Formula 1, one or more selected from compounds represented by Formula 2, and one or more selected from compounds represented by Formula 3,
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ(1-s-t)[Li(Li a (Li a Mn (1-a-x-y) Ni x co y )O 2] *s[Li 2 CO 3] *t[LiOH]€ƒ€ƒ€ƒ€ƒ€ƒ(1)
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒLi(Li b Mn (2-b) )O 4 €ƒ€ƒ€ƒ€ƒ€ƒ(2)
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ(1-u)LiFePO 4 * uC€ƒ€ƒ€ƒ€ƒ€ƒ(3) In these formulae, 0<a<0.3; 0<x<0.8; 0<y<0.6; 0<s<0.05; 0<t<0.05; 0<b<0.3; and 0.01<u<0.1, wherein a, b, x and y denote mole ratios, and s, t and u denote weight ratios. The disclosed cathode active material has long lifespan and storage characteristics at room temperature and/or high temperature and excellent safety, and is effectively used to fabricate a non-aqueous electrolyte type high power lithium secondary battery having excellent rate properties and power characteristics. |
| 申请公布号 |
KR20110110726(A) |
申请公布日期 |
2011.10.07 |
| 申请号 |
KR20110029411 |
申请日期 |
2011.03.31 |
| 申请人 |
LG CHEM. LTD. |
发明人 |
CHANG, SUNG KYUN;PARK, HONG KYU;KIM, SUN KYU;PARK, SIN YOUNG;JUNG, YOUNG HWA;CHUNG, GEUN CHANG;AN, KEUN WAN;PARK, SU MIN;LEE, JI EUN |
| 分类号 |
H01M4/505;B60L11/18;H01M4/525;H01M10/0525 |
主分类号 |
H01M4/505 |
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