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Patent Searching and Data


Title:
MANUFACTURING METHOD FOR SEALED BATTERY, AND SEALED BATTERY
Document Type and Number:
WIPO Patent Application WO/2019/177081
Kind Code:
A1
Abstract:
This manufacturing method for a sealed battery of a mode of the present disclosure includes a welding step for irradiating energy beams from outside an outer can, and welding a negative electrode lead (26) to an outer can (50). The welding step has: a first irradiation step for irradiating a first energy beam that is controlled so that a first melting part (56), which is a melting mark inside the outer can, stays in the portion of the outside surface of the outer can for which the negative electrode lead (26) opposes the interior side of the outer can across the inside surface; and a second irradiation step, subsequent to the first irradiation step, for irradiating a second energy beam that is controlled to have a second melting part (58), which is a melting mark, formed from the outside surface of the outer can to the interior of the negative electrode lead (26), on the inside of the portion of the outside surface of the outer can at which the first melting part is exposed.

Inventors:
MORI Shinya
IKEDA Shota
SHIMIZU Kazumichi
FUNAMI Koji
Application Number:
JP2019/010460
Publication Date:
September 19, 2019
Filing Date:
March 14, 2019
Export Citation:
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Assignee:
SANYO ELECTRIC CO., LTD. (1-1 Sanyo-cho, Daito-shi Osaka, 34, 〒5748534, JP)
International Classes:
H01M2/26; H01M2/02; H01M2/22
Domestic Patent References:
WO2019044265A12019-03-07
Foreign References:
JP2015217422A2015-12-07
JP2016173972A2016-09-29
JP2016207412A2016-12-08
Attorney, Agent or Firm:
YKI INTELLECTUAL PROPERTY ATTORNEYS (1-34-12, Kichijoji-Honcho Musashino-sh, Tokyo 04, 〒1800004, JP)
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