PRE-LITHIATION METHOD FOR LITHIUM SECONDARY BATTERY ANODE, ANODE INTERMEDIATE, AND LITHIUM SECONDARY BATTERY COMPRISING ANODE

WIPO Patent Application WO/2023/153715

A1

A pre-lithiation method for a lithium secondary battery anode, according to the present invention, comprises the steps of: forming an anode current collector layer and an anode active material layer on one surface or both surfaces of the anode current collector layer; and transferring lithium metal onto the anode active material layer, wherein the step of transferring the lithium metal includes the steps of: preprocessing one surface of a base material layer into a pattern shape; sequentially stacking a release layer and the lithium metal on the preprocessed one surface of the base material layer so as to form a transfer stack; stacking the transfer stack onto the anode active material layer so that the surface opposite to the surface of the lithium metal in contact with the release layer is in contact with the surface opposite to the surface of the anode active material layer in contact with the anode current collector layer; and removing the base material layer, and the lithium metal has a width less than or equal to the width of the anode active material layer.

LEE ILHA (KR)
JOO MUN KYU (KR)
KIM SARAH (KR)
JEON SEOYOUNG (KR)
KWON YOHAN (KR)
CHAE JONGHYUN (KR)

PCT/KR2023/001515

August 17, 2023

February 02, 2023

Click for automatic bibliography generation  

LG ENERGY SOLUTION LTD (KR)

H01M4/13; H01M4/02; H01M4/04; H01M4/134; H01M10/0525

KR20210029459A	2021-03-16
KR20190075859A	2019-07-01
JP2013020974A	2013-01-31
KR101625602B1	2016-05-30
US20210057733A1	2021-02-25
KR20220016612A	2022-02-10
JP2009080971A	2009-04-16

CHOI, Hee-Kyeong (KR)

View/Download PDF      PDF Help

Previous Patent: APPARATUS FOR REMOVING RESIDUE INSIDE PRESSURE VESSEL

Next Patent: TRANSFER LAMINATE, METHOD FOR MANUFACTURING ANODE FOR LITHIUM SECONDARY BATTERY, ANODE FOR LITHIUM S...