Title:
Current collection structure of a rechargeable battery, and a current collection structure formation method of a rechargeable battery
Document Type and Number:
Japanese Patent JP5943146
Kind Code:
B2
Abstract:
Provided is a secondary battery collector structure having a small electrical resistance and also provided is a method for forming the secondary battery collector structure. A stir welding portion is formed by friction stir welding so that a positive electrode collector tab layer (27) is not exposed to the surface. In the stir welding portion, a collector (11b) of a positive electrode terminal (11), the positive electrode collector tab layer (27), and a positive electrode presser plate (25) are welded together.
Inventors:
Akira Tanaka
Yusuke Uchida
Satoshi Hirano
Akihiro Sato
Kenichi Okamoto
Yusuke Uchida
Satoshi Hirano
Akihiro Sato
Kenichi Okamoto
Application Number:
JP2015510156A
Publication Date:
June 29, 2016
Filing Date:
April 04, 2014
Export Citation:
Assignee:
Hitachi Chemical Co., Ltd.
International Classes:
B23K20/12; H01M50/54; H01M50/176; H01M50/55; H01M50/553; H01M50/562; H01M50/567
Domestic Patent References:
| JP2005011675A | 2005-01-13 | |||
| JP2007273193A | 2007-10-18 | |||
| JP2005118877A | 2005-05-12 | |||
| JP2005011675A | 2005-01-13 | |||
| JP2007273193A | 2007-10-18 | |||
| JP2005118877A | 2005-05-12 | |||
| JP2003126972A | 2003-05-08 |
Attorney, Agent or Firm:
西浦 ▲嗣▼晴
Tadashi Deyama
High Miki Yoshiki
Toshihisa Sakai
Tadashi Deyama
High Miki Yoshiki
Toshihisa Sakai
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