发明名称 |
INORGANIC OXIDE POWER, INORGANIC OXIDE-CONTAINING SLURRY, LITHIUM ION SECONDARY BATTERY USING SAID SLURRY, AND PRODUCTION METHOD THEREFOR |
摘要 |
An object of the present invention is to provide an inorganic oxide powder suitable for forming an inorganic oxide porous membrane, which is superior in lithium ion conductivity and has insulation performance, on at least one surface of a positive electrode, a negative electrode and a separator which constitute a lithium ion secondary battery. The present invention relates to an inorganic oxide powder for use in forming an inorganic oxide porous membrane having insulation performance on at least one surface of a positive electrode, a negative electrode and a separator which constitute a lithium ion secondary battery, wherein the powder has 1) an oxide purity of 90% by weight or higher; 2) an average particle diameter of 1 μm or less; and 3) an average three-dimensional particle unevenness of 3.0 or higher. |
申请公布号 |
US2015004465(A1) |
申请公布日期 |
2015.01.01 |
申请号 |
US201314371203 |
申请日期 |
2013.01.18 |
申请人 |
SUMITOMO CHEMICAL COMPANY, LIMITED |
发明人 |
Ozaki Hirotaka;Kobashi Yasuharu;Shimada Ken |
分类号 |
H01M2/16;H01M4/139;H01M4/04;H01M10/0525;H01M2/14 |
主分类号 |
H01M2/16 |
代理机构 |
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代理人 |
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主权项 |
1. An inorganic oxide powder for use in forming an inorganic oxide porous membrane having insulation performance on at least one surface of a positive electrode, a negative electrode and a separator which constitute a lithium ion secondary battery, characterized in that the powder has
1) an oxide purity of 90% by weight or higher, 2) an average particle diameter of 1 μm or less, and 3) an average three-dimensional particle unevenness of 3.0 or higher. |
地址 |
Chuo-ku, Tokyo JP |