发明授权
- 专利标题: Lithium ion rechargeable battery and process for producing the lithium ion rechargeable battery
- 专利标题(中): 锂离子充电电池和锂离子充电电池的生产工艺
-
申请号: US13932375申请日: 2013-07-01
-
公开(公告)号: US09457512B2公开(公告)日: 2016-10-04
- 发明人: Mamoru Baba , Shoichi Iwaya , Hitoshi Masumura , Noriyuki Sakai , Takayuki Fujita , Hiroshi Sasagawa , Hiroshi Sato
- 申请人: NAMICS CORPORATION
- 申请人地址: JP Niigata
- 专利权人: NAMICS CORPORATION
- 当前专利权人: NAMICS CORPORATION
- 当前专利权人地址: JP Niigata
- 代理机构: Hamre, Schumann, Mueller & Larson, P.C.
- 优先权: JP2007-127443 20070511; JP2007-127444 20070511
- 主分类号: B29C65/02
- IPC分类号: B29C65/02 ; H01M4/36 ; H01M4/62 ; H01M10/0525 ; H01M10/0562 ; H01M4/485 ; H01M4/505
摘要:
Conventional ion rechargeable batteries having an electrode layer on an electrolyte layer suffer from an impurity layer formed at the interface, degrading performance. Conventional batteries with no such impurity layer have a problem of weak interface bonding. In the present invention, in a baking process step after an electrode layer is laminated on an electrolyte layer, materials for an electrode layer and an electrolyte layer are selected such that an intermediate layer formed of a reaction product contributing to charging and discharging reactions is formed at the interface of the electrode layer and the electrolyte layer. In addition, a paste that an active material is mixed with a conductive material at a predetermined mixing ratio is used to form a positive electrode layer and a negative electrode layer. Reductions in electrode resistance and interface resistance and improvement of charging and discharging cycle characteristics are made possible.