Title:
BATTERY PRODUCTION METHOD AND BATTERY PRODUCTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/051756
Kind Code:
A1
Abstract:
Provided are a battery production method and a battery production device capable of decreasing the occurrence of defects, the method being characterized by: a first step of compressing predetermined regions from a plurality of collector foils (14) superposed onto each other and exposed at an end of an electrode (12), thereby forming a compressed region (16) wherein the interval between adjacent collector foils (14) has been reduced; and a second step of joining by ultrasound welding the regions of the plurality of collector foils (14) inside the compressed region (16), thereby forming a joined region (18) wherein the plurality of collector foils (14) have been turned into a single body.
Inventors:
YAMASHITA MASATOSHI (JP)
OHTAGAKI MANABU (JP)
HASHIMOTO SHIGEKI (JP)
YOSHIO HIDEAKI (JP)
OHTAGAKI MANABU (JP)
HASHIMOTO SHIGEKI (JP)
YOSHIO HIDEAKI (JP)
Application Number:
PCT/JP2017/030328
Publication Date:
March 22, 2018
Filing Date:
August 24, 2017
Export Citation:
Assignee:
J E T CO LTD (JP)
International Classes:
B23K20/10; B23K31/00; H01M10/04; H01M50/536
Domestic Patent References:
| WO2014002227A1 | 2014-01-03 |
Foreign References:
| JP2015195219A | 2015-11-05 | |||
| JP2014022203A | 2014-02-03 | |||
| JP2005205421A | 2005-08-04 | |||
| JP2009087611A | 2009-04-23 |
Other References:
See also references of EP 3514857A4
Attorney, Agent or Firm:
YOSHIDA Tadanori (JP)
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