![正极活性物质及其制备方法、正极和非水电解质电池](/CN/2010/1/55/images/201010279232.jpg)
基本信息:
- 专利标题: 正极活性物质及其制备方法、正极和非水电解质电池
- 申请号:CN201010279232.7 申请日:2010-09-09
- 公开(公告)号:CN102024950B 公开(公告)日:2018-05-25
- 发明人: 森田耕诗 , 细谷洋介 , 藤木聪 , 本桥一成 , 李国华 , 远藤一显
- 申请人: 株式会社村田制作所
- 申请人地址: 日本京都
- 专利权人: 株式会社村田制作所
- 当前专利权人: 株式会社村田制作所
- 当前专利权人地址: 日本京都
- 代理机构: 北京康信知识产权代理有限责任公司
- 代理人: 吴孟秋; 梁韬
- 优先权: 2009-208505 2009.09.09 JP
- 主分类号: H01M4/58
- IPC分类号: H01M4/58 ; H01M10/05 ; H01M4/1397
Disclosed herein is a positive electrode active material prepared by mixing a lithium-containing compound, a compound containing a transition metal to be put into a solid solution, and a compound containing a metallic element M2 different from the transition metal, and firing the mixture to form composite oxide particles, depositing a compound containing at least one element selected from among sulfur (S), phosphorus (P) and fluorine (F) on surfaces of the particles, and firing the particles, whereby each of the particles is provided with a concentration gradient such that the concentration of the metallic element M2 increases from the center toward the surface of the particle, and at least one element selected from among (S), (P) and (F) is made present in the form of being aggregated at the surfaces of the composite oxide particles.
公开/授权文献:
- CN102024950A 正极活性物质及其制备方法、正极和非水电解质电池 公开/授权日:2011-04-20
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 |
------H01M4/00 | 电极 |
--------H01M4/02 | .由活性材料组成或包括活性材料的电极 |
----------H01M4/06 | ..一次电池的电极 |
------------H01M4/58 | ...除氧化物或氢氧化物之外的无机化合物的 |