发明名称 |
LITHIUM ION SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME |
摘要 |
A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolyte provided between the positive electrode and the negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer over the positive electrode current collector. The positive electrode active material layer includes a plurality of lithium-containing composite oxides each of which is expressed by LiMPO4 (M is one or more of Fe (II), Mn (II), Co (II), and Ni (II)) that is a general formula. The lithium-containing composite oxide is a flat single crystal particle in which the length in the b-axis direction is shorter than each of the lengths in the a-axis direction and the c-axis direction. The lithium-containing composite oxide is provided over the positive electrode current collector so that the b-axis of the single crystal particle intersects with the surface of the positive electrode current collector.
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申请公布号 |
US2012237822(A1) |
申请公布日期 |
2012.09.20 |
申请号 |
US201213419639 |
申请日期 |
2012.03.14 |
申请人 |
FUTAMURA TOMOYA;MORIWAKA TAMAE;KAWAKAMI TAKAHIRO;MOMO JUNPEI;INOUE NOBUHIRO;SEMICONDUCTOR ENERGY LABORATORY., LTD. |
发明人 |
FUTAMURA TOMOYA;MORIWAKA TAMAE;KAWAKAMI TAKAHIRO;MOMO JUNPEI;INOUE NOBUHIRO |
分类号 |
H01M4/485;B05D3/12;B82Y30/00;H01M4/04;H01M4/64 |
主分类号 |
H01M4/485 |
代理机构 |
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代理人 |
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地址 |
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