发明名称 |
Li-Ni COMPOSITE OXIDE PARTICLE POWDER FOR RECHARGEABLE BATTERY WITH NONAQUEOUS ELECTROLYTE, PROCESS FOR PRODUCING THE Li-Ni COMPOSITE OXIDE PARTICLE POWDER, AND RECHARGEABLE BATTERY WITH NONAQUEOUS ELECTROLYTE |
摘要 |
The present invention relates to Li-Ni composite oxide particles for a non-aqueous electrolyte secondary cell which have a large charge/discharge capacity, an excellent packing density and excellent storage performance. The Li-Ni composite oxide particles for a non-aqueous electrolyte secondary cell which have a composition represented by the formula:
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒLi x Ni 1-y-z Co y Al z O 2
in which 0.9 < x < 1.3; 0.1 < y < 0.3; and 0 < z < 0.3, wherein the composite oxide particles have a rate of change in specific surface area of not more than 10% as measured between before and after applying a pressure of 1 t/cm 2 thereto, and a sulfate ion content of not more than 1.0%, can be produced by mixing Ni-Co hydroxide particles having a sulfate ion content of not more than 1.0% whose surface is coated with an Al compound having a primary particle diameter of not more than 1 µm, with a lithium compound; and calcining the resulting mixture. |
申请公布号 |
EP2104163(A1) |
申请公布日期 |
2009.09.23 |
申请号 |
EP20070849798 |
申请日期 |
2007.12.06 |
申请人 |
TODA KOGYO CORPORATION |
发明人 |
YAMAMOTO, HIROSHI;KIKUYA, KAZUHIKO;SASAKI, OSAMU;SANTOKI, TERUAKI |
分类号 |
C01G53/00;H01M4/525;C01G51/00;H01M4/131;H01M10/052;H01M10/44 |
主分类号 |
C01G53/00 |
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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