发明名称 |
POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM-ION BATTERY, POSITIVE ELECTRODE FOR LITHIUM-ION BATTERY, AND LITHIUM-ION BATTERY |
摘要 |
The present invention provides a positive electrode active material for lithium ion batteries having excellent rate performance. The positive electrode active material for lithium ion batteries having a layered structure is represented by composition formula: Li x (Ni y M 1-y )O z , wherein
M is Mn and Co, x is 0.9 to 1.2, y is 0.6 to 0.9, z is 1.8 to 2.4. D2/D1 is 1.065 or less, D1 being defined as the density of the positive electrode active material when powder of the positive electrode active material is pressed under the pressure of 100MPa, and D2 being defined as the density of the positive electrode active material when powder of the positive electrode active material is pressed under the pressure of 300MPa. |
申请公布号 |
EP2544270(A4) |
申请公布日期 |
2014.06.11 |
申请号 |
EP20110750468 |
申请日期 |
2011.02.16 |
申请人 |
JX NIPPON MINING & METALS CORPORATION |
发明人 |
SATOH, HIROHITO;KAJIYA, YOSHIO |
分类号 |
H01M4/525;H01M4/02;H01M4/131;H01M4/36;H01M4/505 |
主分类号 |
H01M4/525 |
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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