- 专利标题： Method to prepare composite graphite particles for nonaqueous secondary battery negative electrode, active material for nonaqueous secondary battery negative electrode, and nonaqueous secondary battery
-
申请号： US17643200申请日： 2021-12-08
-
公开(公告)号： US11605810B2公开(公告)日： 2023-03-14
- 发明人: Akio Ueda , Satoshi Akasaka , Nobuyuki Ishiwatari , Junko Kagimoto , Shingo Morokuma
- 申请人： Mitsubishi Chemical Corporation
- 申请人地址： JP Tokyo
- 专利权人： Mitsubishi Chemical Corporation
- 当前专利权人： Mitsubishi Chemical Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Obion, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2014-064534 20140326
- 主分类号： H01M4/36
- IPC分类号： H01M4/36 ; H01M4/587 ; H01M4/133 ; H01M4/134 ; H01M10/0525 ; H01M4/38 ; H01M4/62 ; H01M10/0566
摘要：
The invention relates to composite graphite particles for a nonaqueous secondary battery negative electrode containing graphite (A) and metal particles (B) capable of alloying with Li, wherein the degree of dispersion of the metal particles (B) in the composite graphite particles is 0.78 or more and the internal void fraction of the composite graphite particles is 3% or more and 40% or less.
公开/授权文献
信息查询
