Invention Grant
- Patent Title: Method for manufacturing electrode plate and method for manufacturing secondary battery
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Application No.: US15846390Application Date: 2017-12-19
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Publication No.: US10741826B2Publication Date: 2020-08-11
- Inventor: Tatsuya Aizawa
- Applicant: SANYO ELECTRIC CO., LTD.
- Applicant Address: JP Daito-shi, Osaka
- Assignee: SANYO Electric Co., Ltd.
- Current Assignee: SANYO Electric Co., Ltd.
- Current Assignee Address: JP Daito-shi, Osaka
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@4a42877
- Main IPC: H01M4/04
- IPC: H01M4/04 ; H01M4/62 ; H01M10/058 ; H01M4/485 ; H01M4/66 ; H01M4/139 ; H01M10/0525 ; H01M4/02 ; H01M4/1391

Abstract:
A method for manufacturing an electrode plate includes a first application step of applying conductive layer slurry containing fibrous carbon to a surface of a core made of metal foil, a second application step of applying active material mix layer slurry containing an active material to the conductive layer slurry before the conductive layer slurry dries, and a drying step of drying the conductive layer slurry and the active material mix layer slurry. The fibrous carbon contained in the conductive layer slurry has a fiber length-to-diameter ratio of 20:1 to 2,000:1. The amount of the fibrous carbon, contained in the conductive layer slurry applied to the core surface, per unit are of the core is 0.05 g/m2 to 0.20 g/m2 after the first application step.
Public/Granted literature
- US20180277825A1 METHOD FOR MANUFACTURING ELECTRODE PLATE AND METHOD FOR MANUFACTURING SECONDARY BATTERY Public/Granted day:2018-09-27
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