发明申请
- 专利标题: Nonaqueous electrolyte solution for secondary battery and nonaqueous electrolyte secondary battery
- 专利标题(中): 二次电池和非水电解质二次电池用非水电解液
-
申请号: US11234339申请日: 2005-09-26
-
公开(公告)号: US20060024586A1公开(公告)日: 2006-02-02
- 发明人: Noriyuki Tamura , Toshikazu Yoshida , Maruo Kamino , Shin Fujitani , Masahiro Takehara , Makoto Ue
- 申请人: Noriyuki Tamura , Toshikazu Yoshida , Maruo Kamino , Shin Fujitani , Masahiro Takehara , Makoto Ue
- 申请人地址: JP Moriguchi-shi JP Minato-ku
- 专利权人: SANYO ELECTRIC CO., LTD.,MITSUBISHI CHEMICAL CORPORATION
- 当前专利权人: SANYO ELECTRIC CO., LTD.,MITSUBISHI CHEMICAL CORPORATION
- 当前专利权人地址: JP Moriguchi-shi JP Minato-ku
- 优先权: JP2003-083084 20030325
- 主分类号: H01M10/40
- IPC分类号: H01M10/40 ; H01M4/58
摘要:
A nonaqueous electrolyte secondary battery in which the decomposition of an electrolyte solution is reduced exhibits high coulombic efficiency and excellent charge and discharge cycle performance, and has high energy density. This nonaqueous electrolyte secondary battery includes a negative electrode that is formed by depositing a thin film of active material on a collector by a CVD method, sputtering, evaporation, thermal spraying, or plating, wherein the thin film of the active material can lithiate and delithiate and is divided into columns by cracks formed in the thickness direction, and the bottom of each column is adhered to the collector; a positive electrode that can lithiate and delithiate; and a nonaqueous electrolyte solution containing a lithium salt in a nonaqueous solvent. The electrolyte solution contains a compound expressed by a general formula (I). (wherein, X represents a perfluoroalkyl group having 1 to 3 fluorine atoms or carbon atoms, and 2n Xs may be identical or different from one another. n is an integer of 1 or more.)