- Patent Title: Method of manufacturing nonaqueous electrolyte secondary battery
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Application No.: US15174097Application Date: 2016-06-06
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Publication No.: US09960459B2Publication Date: 2018-05-01
- Inventor: Yuichi Ito
- Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Applicant Address: JP Toyota-shi, Aichi-ken
- Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee Address: JP Toyota-shi, Aichi-ken
- Agency: Sughrue Mion, PLLC
- Priority: JP2015-117954 20150611
- Main IPC: H01M10/44
- IPC: H01M10/44 ; H01M10/0567 ; H01M4/505 ; H01M4/525 ; H01M10/052

Abstract:
A method of manufacturing a nonaqueous electrolyte secondary battery includes: constructing a nonaqueous electrolyte secondary battery including an electrode body and an electrolytic solution, the electrode body including a negative electrode, and the electrolytic solution containing a nonaqueous solvent and a negative electrode film forming agent having a decomposition voltage that is lower than a decomposition voltage of the nonaqueous solvent; performing first charging of the nonaqueous electrolyte secondary battery at a voltage that is equal to or higher than the decomposition voltage of the negative electrode film forming agent and lower than the decomposition voltage of the nonaqueous solvent and at −30° C. to 0° C.; and performing second charging of the nonaqueous electrolyte secondary battery at a voltage that is equal to or higher than the decomposition voltage of the nonaqueous solvent and at a temperature of 25° C. or higher and lower than a boiling point of the electrolytic solution.
Public/Granted literature
- US20160365608A1 METHOD OF MANUFACTURING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY Public/Granted day:2016-12-15
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