Invention Grant
- Patent Title: Method for producing lithium secondary cell
- Patent Title (中): 锂二次电池的制造方法
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Application No.: US13993135Application Date: 2010-12-17
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Publication No.: US09406967B2Publication Date: 2016-08-02
- Inventor: Hisataka Fujimaki , Katsuyuki Hojo , Tomotaka Hagino , Hiroyuki Kawaki , Shinya Kamada , Hisanao Kojima
- Applicant: Hisataka Fujimaki , Katsuyuki Hojo , Tomotaka Hagino , Hiroyuki Kawaki , Shinya Kamada , Hisanao Kojima
- Applicant Address: JP Toyota-shi, Aichi
- Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee Address: JP Toyota-shi, Aichi
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, LLP
- International Application: PCT/JP2010/072815 WO 20101217
- International Announcement: WO2012/081128 WO 20120621
- Main IPC: H01M10/04
- IPC: H01M10/04 ; H01M4/139 ; H01M10/052 ; H01M10/058 ; H01M10/44

Abstract:
Provided is a method for producing a lithium secondary cell with which the concentrated precipitation of metal impurities at the negative electrode is inhibited and short circuiting is unlikely to occur. The production method includes, assembling together the positive electrode, the separator, and the negative electrode, and then impregnating the assembly with the nonaqueous electrolyte; charging the assembly within 1 min so that a maximum achieved potential of the positive electrode becomes 3.2 V or more with respect to the redox potential of lithium; allowing the assembly to stand for 10 min or less after the charging has ended; and discharging the assembly within 1 min after the standing step.
Public/Granted literature
- US20130255075A1 METHOD FOR PRODUCING LITHIUM SECONDARY CELL Public/Granted day:2013-10-03
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