Title:
BATTERY, AND JOINING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/047772
Kind Code:
A1
Abstract:
A battery 1 is provided with a wound electrode group 2 in which separators 10 and electrode plates are stacked and wound, and a collector plate. In the electrode group 2, end portions of the plurality of electrode plates, which are aligned side-by-side in a radial direction B, are bent and folded in the radial direction B, and the plurality of bent and folded end portions are joined to the collector plate. The bent and folded end portions have a first region 74 which bends toward one side in the radial direction B, and a second region 76 which bends from a tip end of the first region 74 toward the other side in the radial direction B.
Inventors:
MORIYAMA YUSUKE
SHINOBU TOMOAKI
UEGAKI SHUNSUKE
HIROSE TAKAYUKI
SHINOBU TOMOAKI
UEGAKI SHUNSUKE
HIROSE TAKAYUKI
Application Number:
PCT/JP2022/027848
Publication Date:
March 30, 2023
Filing Date:
July 15, 2022
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01M50/538; H01M10/04; H01M10/052; H01M10/0587; H01M50/533
Domestic Patent References:
| WO2021024734A1 | 2021-02-11 |
Foreign References:
| JP2003022842A | 2003-01-24 | |||
| JP2008066075A | 2008-03-21 | |||
| JP2019125565A | 2019-07-25 | |||
| JP2010257851A | 2010-11-11 | |||
| JP2002170547A | 2002-06-14 |
Attorney, Agent or Firm:
MUNETA Satoshi (JP)
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