US 12,469,869 B2
Plasma generator for secondary battery and lamination system comprising the same
Sang Kyun Lee, Daejeon (KR); and Duck Hoe Kim, Daejeon (KR)
Assigned to LG Energy Solution, Ltd., Seoul (KR)
Appl. No. 17/923,157
Filed by LG Energy Solution, Ltd., Seoul (KR)
PCT Filed Oct. 8, 2021, PCT No. PCT/KR2021/013936
§ 371(c)(1), (2) Date Nov. 3, 2022,
PCT Pub. No. WO2022/092616, PCT Pub. Date May 5, 2022.
Claims priority of application No. 10-2020-0143819 (KR), filed on Oct. 30, 2020.
Prior Publication US 2023/0223576 A1, Jul. 13, 2023
Int. Cl. H01M 10/04 (2006.01); B32B 37/00 (2006.01); B32B 37/06 (2006.01); B32B 38/00 (2006.01); H05H 1/24 (2006.01)
CPC H01M 10/0404 (2013.01) [B32B 37/0053 (2013.01); B32B 37/06 (2013.01); B32B 38/0004 (2013.01); B32B 38/0008 (2013.01); H05H 1/47 (2021.05); B32B 2310/14 (2013.01); B32B 2457/10 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A plasma generator for use in manufacturing a secondary battery, the secondary battery comprising an electrode assembly comprising first and second electrodes separated by a separator and the plasma generator comprising:
a transfer roller configured to transfer the separator; and
a plasma generation part configured to form an adhesive surface having an adhesive force on a portion of a surface of the separator and a non-adhesive surface having no adhesive force on a remaining portion of the surface of the separator,
wherein the plasma generation part comprises:
a metal member embedded in the transfer roller;
a plasma generation member configured to be spaced apart from the transfer roller and to generate plasma by mutual reaction with the metal member and thereby to form the adhesive surface on the portion of the surface of the separator; and
a blocking member located on an outer circumferential surface of the transfer roller and configured to block the mutual reaction between the metal member and the plasma generation member such that the non-adhesive surface is formed on the remaining portion of the surface of the separator,
wherein the blocking member is made of a non-conductive material.