发明申请
US20140322579A1 METHOD FOR PRODUCING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY (AS AMENDED)
有权
生产非水电解质二次电池的方法(已修订)
- 专利标题: METHOD FOR PRODUCING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY (AS AMENDED)
- 专利标题(中): 生产非水电解质二次电池的方法(已修订)
-
申请号: US14360342申请日: 2011-11-24
-
公开(公告)号: US20140322579A1公开(公告)日: 2014-10-30
- 发明人: Toshihiko Mitsuhashi , Yoshiyuki Ozaki , Hideki Sano , Hajime Konishi
- 申请人: Toshihiko Mitsuhashi , Yoshiyuki Ozaki , Hideki Sano , Hajime Konishi
- 国际申请: PCT/JP2011/077074 WO 20111124
- 主分类号: H01M4/62
- IPC分类号: H01M4/62 ; H01M4/04
摘要:
The present invention provides a method for producing a nonaqueous electrolyte secondary battery in which the drop in capacity retention rate is controlled by forming a coating in a more favorable state on the surface of the negative electrode active material. This production method comprises a step S10 of preparing a battery assembly in which an electrode assembly is housed within a battery case, the electrode assembly including a positive electrode produced by forming a positive electrode active material layer containing at least a positive electrode active material, and a negative electrode produced by forming a negative electrode active material layer containing at least a negative electrode active material; a first injection step S20 of injecting a nonaqueous electrolyte containing a specified additive into the battery case; a precharging step S30 of forming the additive-derived coating on the surface of the negative electrode active material; a second injection step S40 of injecting a nonaqueous electrolyte not containing an additive into the battery case; and a charge and discharge step S50 of charging and discharging the battery assembly to a predetermined charging and discharge voltage.
公开/授权文献
信息查询