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Title:
DIE COATER CAPABLE OF MULTI-LAYER COATING OF ACTIVE MATERIALS
Document Type and Number:
WIPO Patent Application WO/2023/195733
Kind Code:
A1
Abstract:
The disclosed invention relates to a die coater capable of simultaneously multi-layer coating two different liquids on a current collector for a secondary battery, the die coater comprising: a first body provided with a first manifold accommodating an electrode slurry; a second body provided with a second manifold accommodating an electrode slurry and coupled to the first body to form a first slit for discharging the electrode slurry accommodated in the first manifold; and a third body coupled to the second body to form a second slit for discharging the electrode slurry accommodated in the second manifold, wherein the first slit is formed by a first shim and a third shim interposed between the coupling surfaces of the first body and the second body, the second slit is formed by a second shim and a fourth shim interposed between the coupling surfaces of the second body and the third body, and at least any one of the third shim and the fourth shim forms an insulating liquid slit.

Inventors:
PARK JOON SUN (KR)
JEON SHIN WOOK (KR)
LEE TAEK SOO (KR)
KIM MAN HYEONG (KR)
CHOI MIN HYUCK (KR)
KIM GUK TAE (KR)
Application Number:
PCT/KR2023/004512
Publication Date:
October 12, 2023
Filing Date:
April 04, 2023
Export Citation:
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Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
B05C5/02; H01M4/04
Domestic Patent References:
WO2020231141A12020-11-19
Foreign References:
KR102067799B12020-02-24
KR20190034523A2019-04-02
KR20210155879A2021-12-24
JP2005137974A2005-06-02
KR102035826B12019-10-24
Attorney, Agent or Firm:
KIM, Hong Gyun (KR)
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