Invention Grant
- Patent Title: Method for manufacturing lithium secondary battery
- Patent Title (中): 锂二次电池的制造方法
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Application No.: US14343173Application Date: 2011-09-08
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Publication No.: US09385398B2Publication Date: 2016-07-05
- Inventor: Hisataka Fujimaki , Shinya Kamada , Shinya Kuroki , Hideto Mori , Hisanao Kojima
- Applicant: Hisataka Fujimaki , Shinya Kamada , Shinya Kuroki , Hideto Mori , 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/JP2011/070511 WO 20110908
- International Announcement: WO2013/035187 WO 20130314
- Main IPC: H01M4/58
- IPC: H01M4/58 ; H01M10/0525 ; H01M4/505 ; H01M4/525 ; H01M10/058 ; H01M10/44 ; H01M10/052

Abstract:
Provided is a method for manufacturing a lithium secondary battery which is capable of preventing a local deposition of a metallic foreign substance at a negative electrode regardless of the type of a positive electrode and in which a short-circuit is less likely to occur. The present manufacturing method comprises: a step of assembling a cell that includes a positive electrode, a negative electrode, and a nonaqueous electrolyte; a micro charging step of performing a micro charge on the assembled cell before performing an initial conditioning charge until a positive electrode potential with respect to a metal lithium (Li) reference electrode exceeds an Me dissolution potential set in advance at which a mixing-anticipated metal species (Me) starts to dissolve; and an Me dissolution potential holding step of holding the positive electrode potential of the cell at or above the Me dissolution potential for a prescribed period of time after the micro charge.
Public/Granted literature
- US20150064566A1 METHOD FOR MANUFACTURING LITHIUM SECONDARY BATTERY Public/Granted day:2015-03-05
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