ELECTRODE ASSEMBLY HAVING COATING PORTION FOR SHORT-CIRCUIT PREVENTION

WIPO Patent Application WO/2023/022560

A1

The present invention relates to an electrode assembly having a coating portion for short-circuit prevention, and more specifically, to an electrode assembly characterized by comprising: a positive electrode sheet in which a positive electrode tab protrudes from one outer end, and a current collector and the lower part of the positive electrode tab are coated with a positive electrode mixture layer containing a positive electrode active material; a negative electrode sheet in which a negative electrode tab protrudes from one outer end, and a current collector and the lower part of the negative electrode tab are coated with a negative electrode mixture layer containing a negative electrode active material; and a separator disposed between the positive electrode sheet and the negative electrode sheet, wherein a shoulder portion extending a predetermined length in a horizontal direction and coated with the negative electrode active material is formed on the negative electrode sheet, and the shoulder portion is wrapped with the coating portion.

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WON KWANG HO (KR)
OH JUNG SHIK (KR)

PCT/KR2022/012411

February 23, 2023

August 19, 2022

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LG ENERGY SOLUTION LTD (KR)

H01M10/42; H01M10/04; H01M50/531; H01M50/586

JP2001035477A	2001-02-09
KR101586530B1	2016-01-21
KR20120048508A	2012-05-15
JP2010055906A	2010-03-11
JP6292678B2	2018-03-14
KR20210109580A	2021-09-06
KR20110060036A	2011-06-08

MYUNGRYUN IP & LAW FIRM (KR)

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