ELECTRODE COATING DIE, ELECTRODE COATING APPARATUS, ELECTRODE MANUFACTURING METHOD, ELECTRODE, ELECTRODE ASSEMBLY, AND SECONDARY BATTERY

WIPO Patent Application WO/2022/225364

A1

The present invention provides an electrode coating die and an electrode coating apparatus comprising same, the electrode coating die comprising: a slurry discharge unit for discharging an active material slurry onto a current collector; and a dam liquid discharge unit, provided on at least one side of the slurry discharge unit, for discharging a dam liquid to form a dam layer covering at least a portion of an inclined surface unit provided at an edge portion of an active material slurry layer applied by being discharged from the slurry discharge unit. In addition, the present invention provides an electrode manufacturing method comprising: a step of preparing an active material slurry including an active material, a conductive material, and a solvent; and a coating step of applying the active material slurry on a current collector, wherein the coating step comprises a step of forming an active material layer by discharging the active material slurry on the current collector while simultaneously discharging a dam liquid to form a dam layer covering at least a portion of an inclined surface unit provided at an edge portion of at least one side of an active material slurry layer coated on the current collector.

WO/2016/166597	A METHOD FOR MANUFACTURING AN ELECTRODE FOR ENERGY STORAGE DEVICES AND AN ELECTRODE MANUFACTURED THEREWITH
JP2007265890	ELECTRODE PLATE FOR NONAQUEOUS ELECTROLYTIC SOLUTION SECONDARY BATTERY, AND ITS MANUFACTURING METHOD AS WELL AS NONAQUEOUS ELECTROLYTIC SOLUTION SECONDARY BATTERY
JP2008117607	MANUFACTURING METHOD OF ELECTRODE FOR BATTERY

KIM SUE JIN (KR)
RYU DUK HYUN (KR)
LEE KWANHEE (KR)
JANG JINSU (KR)
LEE YUNJU (KR)
PARK GEUNHO (KR)
PARK SANGJIN (KR)

PCT/KR2022/005786

October 27, 2022

April 22, 2022

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LG ENERGY SOLUTION LTD (KR)

H01M4/04; B05C5/02; H01M4/139; H01M10/42

KR20200049640A	2020-05-08
KR20130024766A	2013-03-08
KR20170100376A	2017-09-04
KR102035826B1	2019-10-24
KR20190021698A	2019-03-06
KR20210053323A	2021-05-11
KR20220049992A	2022-04-22
KR20130024766A	2013-03-08
US6677082B2	2004-01-13
US6680143B2	2004-01-20

CHOI, Hee-Kyeong (KR)

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