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Title:
BATTERY AND MANUFACTURING METHOD FOR BATTERY
Document Type and Number:
WIPO Patent Application WO/2020/196094
Kind Code:
A1
Abstract:
This manufacturing method comprises: a step for preparing a case having an opening at one end thereof and a bottom part at the other end thereof; a step for preparing an electrode group having a first electrode, a second electrode, and a collector lead electrically connected to the first electrode; a step for accommodating the electrode group in the case; and a joining step for joining the collector lead and the inner surface of the case. The joining step includes: a step of pressing a tubular pressing member against the collector lead such that the collector lead comes into contact with the inner surface of the case; and a step for welding the case and the collector lead in a state in which the inside of the tube of the pressing member is depressurized by a suction unit.

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Inventors:
SHIMIZU KAZUMICHI
Application Number:
PCT/JP2020/011718
Publication Date:
October 01, 2020
Filing Date:
March 17, 2020
Export Citation:
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Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01M6/16; H01M10/04; H01M10/0587; H01M50/107; H01M50/533
Domestic Patent References:
WO2010016182A12010-02-11
Foreign References:
JP2015162270A2015-09-07
JP2015162326A2015-09-07
JP2011228153A2011-11-10
JP2009238604A2009-10-15
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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