Title:
SECONDARY BATTERY ELECTRODE ASSEMBLY COMPRISING SEPARATION MEMBRANE HAVING NOTCH GROOVE, AND SECONDARY BATTERY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2022/250271
Kind Code:
A1
Abstract:
According to one embodiment of the present invention, provided are a secondary battery electrode assembly and a secondary battery comprising same, the electrode assembly comprising: a stack including a cathode, an anode and a separation membrane inserted between the cathode and the anode, the separation membrane being positioned at outermost surfaces of both sides thereof; and two or more pairs of fixing members attached in the stacked direction in order to fix the separation membranes positioned at the outermost surfaces of both sides of the stack, wherein the separation membrane includes at least a pair of notch grooves, and the pair of notch grooves are formed one by one on one surface perpendicular to the protruding direction of an electrode tab, and on the other surface positioned in the diagonal direction thereof.
Inventors:
PARK KYUTAE (KR)
OH SANG SEUNG (KR)
KIM HYEHYEON (KR)
OH SANG SEUNG (KR)
KIM HYEHYEON (KR)
Application Number:
PCT/KR2022/004501
Publication Date:
December 01, 2022
Filing Date:
March 30, 2022
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
H01M10/42; H01M10/04; H01M50/463
Foreign References:
| JP6775154B2 | 2020-10-28 | |||
| JP2015534251A | 2015-11-26 | |||
| KR101440008B1 | 2014-09-12 | |||
| JP2016015212A | 2016-01-28 | |||
| JP2015176664A | 2015-10-05 |
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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