发明名称 |
POSITIVE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD FOR PRODUCING THE SAME, ELECTRODE FOR LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY AND ENERGY STORAGE APPARATUS |
摘要 |
A positive active material for a lithium secondary battery containing a lithium transition metal composite oxide having a hexagonal crystal structure in which the transition metal (Me) includes Ni, Co and Mn, wherein in the lithium transition metal composite oxide, a molar ratio of Ni to the transition metal (Me) (Ni/Me) is 0.5 or more and 0.9 or less, a molar ratio of Co to the transition metal (Me) (Co/Me) is 0.1 or more and 0.3 or less, a molar ratio of Mn to the transition metal (Me) (Mn/Me) is 0.03 or more and 0.3 or less, and a value obtained by dividing a half width ratio F(003)/F(104) at a potential of 4.3 V (vs. Li/Li+) by a half width ratio F(003)/F(104) at a potential of 2.0 V (vs. Li/Li+) is 0.9 or more and 1.1 or less. |
申请公布号 |
US2016240846(A1) |
申请公布日期 |
2016.08.18 |
申请号 |
US201415026429 |
申请日期 |
2014.10.01 |
申请人 |
GS Yuasa International Ltd. |
发明人 |
ENDO Daisuke;MURAMATSU Hiromasa |
分类号 |
H01M4/485;H01M10/0525;H01M4/131;C01G53/00 |
主分类号 |
H01M4/485 |
代理机构 |
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代理人 |
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主权项 |
1. A positive active material for a lithium secondary battery containing a lithium transition metal composite oxide having a hexagonal crystal structure in which the transition metal (Me) includes Ni, Co and Mn, wherein in the lithium transition metal composite oxide, a molar ratio of Ni to the transition metal (Me) (Ni/Me) is 0.5 or more and 0.9 or less, a molar ratio of Co to the transition metal (Me) (Co/Me) is 0.1 or more and 0.3 or less, a molar ratio of Mn to the transition metal (Me) (Mn/Me) is 0.03 or more and 0.3 or less, and a value obtained by dividing a half width ratio F(003)/F(104) at a potential of 4.3 V (vs. Li/Li+) by a half width ratio F(003)/F(104) at a potential of 2.0 V (vs. Li/Li+) is 0.9 or more and 1.1 or less. |
地址 |
Kyoto-shi, Kyoto JP |