Title:
BATTERY CASE FOR SECONDARY BATTERY AND METHOD FOR MANUFACTURING POUCH-TYPE SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2021/040380
Kind Code:
A1
Abstract:
To address the above-described problem, a battery case for a secondary battery according to an embodiment of the present invention comprises: a cup part having an accommodation space for accommodating an electrode assembly in which electrodes and a separator are stacked; a sealing part extending outward from the cup part; and a gas discharge unit which is attached to a hole formed by perforating at least one of the cup part or the sealing part and through which gas permeates, wherein the gas discharge unit comprises: a melting layer comprising a thermoplastic resin which melts when heated; and a thermosetting layer stacked on a surface of the melting layer and comprising a thermosetting resin which does not melt by heat.
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| JP2020035692 | BATTERY |
Inventors:
HWANG SOO JI (KR)
CHOI YONG SU (KR)
KIM SANG HUN (KR)
YU HYUNG KYUN (KR)
KIM NA YOON (KR)
CHOI YONG SU (KR)
KIM SANG HUN (KR)
YU HYUNG KYUN (KR)
KIM NA YOON (KR)
Application Number:
PCT/KR2020/011319
Publication Date:
March 04, 2021
Filing Date:
August 25, 2020
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M2/12; H01M2/02
Foreign References:
| JP2019067616A | 2019-04-25 | |||
| KR20150034498A | 2015-04-03 | |||
| KR20170057297A | 2017-05-24 | |||
| KR20170011358A | 2017-02-02 | |||
| KR101472202B1 | 2014-12-11 | |||
| US20030232236A1 | 2003-12-18 | |||
| JP2008198664A | 2008-08-28 | |||
| JPH0627534A | 1994-02-04 | |||
| JP2003331819A | 2003-11-21 |
Other References:
See also references of EP 4002568A4
Attorney, Agent or Firm:
BAE, KIM & LEE IP (KR)
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