发明名称 |
POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY |
摘要 |
An object of the present invention is to provide a lithium secondary battery cathode which can more improve characteristics of the battery. The cathode of the present invention includes an electroconductive cathode current collector, a plurality of plate-like particle formed of a cathode active material, and a binder containing microparticles formed of the cathode active material and being smaller than the plate-like particles. The plate-like particles are formed so as to have an aspect ratio of 4 to 50. The plate-like particles are arranged such that the particles cover the surface of the cathode current collector surface at a percent area of 85 to 98%. The binder is disposed so as to intervene between two adjacent plate-like particles. |
申请公布号 |
EP2642563(A1) |
申请公布日期 |
2013.09.25 |
申请号 |
EP20110842232 |
申请日期 |
2011.11.01 |
申请人 |
NGK INSULATORS, LTD. |
发明人 |
OKADA, SHIGEKI;NANATAKI, TSUTOMU;KOBAYASHI, NOBUYUKI;YOSHIKAWA, JUN;URAKAWA, AKIRA |
分类号 |
H01M4/62;H01M4/131;H01M4/505;H01M4/525;H01M10/052;H01M10/0585 |
主分类号 |
H01M4/62 |
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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