Title:
BATTERY CASE AND METHOD FOR MANUFACTURING BATTERY CASE
Document Type and Number:
WIPO Patent Application WO/2023/032740
Kind Code:
A1
Abstract:
This battery case (10) is provided with: a rectangular frame-shaped part (11); and at least one cross member that extends toward a pair of parallel wall surfaces of the frame-shaped part (11) so as to partition the inside of the frame-shaped part (11). The frame-shaped part (11) is made of aluminum or an aluminum alloy, the cross member (20) is made of steel, a steel plate (30) is welded to the wall surface of the frame-shaped part (11), the steel plate (30) has a first hole (31) facing the wall surface of the frame-shaped part (11), the steel plate (30) and the wall surface of the frame-shaped part (11) are joined by welding in the first hole (31), the first hole (31) is filled with a welded metal WA of aluminum or an aluminum alloy, and the steel plate (30) and one end of the cross member (20) in the longitudinal direction are joined by welding.
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Inventors:
SUZUKI REIICHI
WATANABE KENICHI
SHIMODA YOICHIRO
YOSHIDA MASATOSHI
WATANABE KENICHI
SHIMODA YOICHIRO
YOSHIDA MASATOSHI
Application Number:
PCT/JP2022/031620
Publication Date:
March 09, 2023
Filing Date:
August 22, 2022
Export Citation:
Assignee:
KOBE STEEL LTD (JP)
International Classes:
H01M50/224; B23K9/00; B23K9/02; B23K9/23; H01M50/249
Foreign References:
| CN210897393U | 2020-06-30 | |||
| JP2021041783A | 2021-03-18 | |||
| JP2021023946A | 2021-02-22 | |||
| JP2013133044A | 2013-07-08 | |||
| JPS52114446A | 1977-09-26 | |||
| JP2017070962A | 2017-04-13 |
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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