发明名称 |
POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY |
摘要 |
It is an object of the present invention to provide a positive electrode material having a large ratio of the discharge capacity around 4 V to the total discharge capacity including the discharge capacity at 4V or lower while making the discharge capacity around 4 V sufficient, for the purpose of providing a lithium secondary battery using a lithium transition metal phosphate compound excellent in thermal stability, utilizing the discharge potential around 4V (vs. Li/Li + ) that is higher than the discharge potential of LiFeP04, and being advantageous with respect to the detection of the end of discharge state, and a lithium secondary battery using the same. The present invention uses a positive active material for a lithium secondary battery containing a lithium transition metal phosphate compound represented by LiMn 1-x-y FexCoyPO 4 (0.1 ‰¤ x ‰¤ 0.2, 0 < y ‰¤ 0.2). |
申请公布号 |
EP2383820(A1) |
申请公布日期 |
2011.11.02 |
申请号 |
EP20090838368 |
申请日期 |
2009.11.27 |
申请人 |
GS YUASA INTERNATIONAL LTD. |
发明人 |
KASHIWA, YUTA;KOHMOTO, MARIKO;TABUCHI, TORU;INAMATSU, TOKUO;NUKUDA, TOSHIYUKI |
分类号 |
H01M4/58;C01B25/45;H01M10/052 |
主分类号 |
H01M4/58 |
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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