Invention Grant
- Patent Title: Method of manufacturing negative electrode for nonaqueous electrolyte secondary battery
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Application No.: US14943306Application Date: 2015-11-17
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Publication No.: US09960411B2Publication Date: 2018-05-01
- Inventor: Hiroya Umeyama , Naoto Onodera , Naoyuki Wada , Yusuke Fukumoto , Tatsuya Hashimoto , Yuji Yokoyama
- 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: JP2014-234709 20141119
- Main IPC: B29C43/24
- IPC: B29C43/24 ; B32B37/06 ; H01M4/139 ; H01M4/04 ; H01M4/66 ; B32B37/24 ; H01M4/02

Abstract:
A method of manufacturing a negative electrode for a nonaqueous electrolyte secondary battery includes: preparing a copper foil having a first main surface and a second main surface that are opposite sides of the copper foil; obtaining a granulated body by mixing a negative electrode active material, a thickener, a binder, and a solvent with each other to obtain a mixture and by granulating the mixture; obtaining a first negative electrode mixture layer by pressing the granulated body; arranging the first negative electrode mixture layer on the first main surface; and softening the copper foil by bringing the second main surface into contact with a heated roller in a state where the first negative electrode mixture layer is arranged on the first main surface. A temperature of the heated roller is a recrystallization temperature of the copper foil or higher.
Public/Granted literature
- US20160141597A1 METHOD OF MANUFACTURING NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY Public/Granted day:2016-05-19
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