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基本信息:
- 专利标题: LITHIUM ION SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME
- 申请号:US15608439 申请日:2017-05-30
- 公开(公告)号:US20170271713A1 公开(公告)日:2017-09-21
- 发明人: Tomoya FUTAMUA , Tamae MORIWAKA , Takahiro KAWAKAMI , Junpei MOMO , Nobuhiro INOUE
- 申请人: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
- 优先权: JP2011-060197 20110318
- 主分类号: H01M10/0525
- IPC分类号: H01M10/0525 ; H01M4/66 ; H01M4/36 ; H01M4/13
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.
公开/授权文献:
IPC结构图谱:
H | 电学 |
--H01 | 基本电气元件 |
----H01M | 用于直接转变化学能为电能的方法或装置,例如电池组 |
------H01M10/00 | 二次电池;及其制造 |
--------H01M10/05 | .非水电解质蓄电池 |
----------H01M10/052 | ..锂蓄电池 |
------------H01M10/0525 | ...摇椅式电池,即其两个电极均插入或嵌入有锂的电池;锂离子电池 |