US 12,492,095 B2
Apparatus for manufacturing electrode assembly, electrode assembly manufactured therethrough, and secondary battery
Woong Ki Kim, Daejeon (KR); Sang Don Lee, Daejeon (KR); and Sang Uk Yeo, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/782,543
Filed by LG ENERGY SOLUTION, LTD., Seoul (KR)
PCT Filed Dec. 2, 2020, PCT No. PCT/KR2020/017446
§ 371(c)(1), (2) Date Jun. 3, 2022,
PCT Pub. No. WO2021/112551, PCT Pub. Date Jun. 10, 2021.
Claims priority of application No. 10-2019-0161928 (KR), filed on Dec. 6, 2019.
Prior Publication US 2023/0002183 A1, Jan. 5, 2023
Int. Cl. B65H 35/00 (2006.01); H01M 10/04 (2006.01)
CPC B65H 35/0086 (2013.01) [H01M 10/04 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An apparatus for manufacturing an electrode assembly, the apparatus comprising:
a cutting part configured to cut an electrode to a predetermined size;
a supply part disposed in front of the cutting part with respect to a traveling direction of the electrode to move and supply the electrode to the cutting part; and
a moving part disposed behind the cutting part with respect to the traveling direction of the electrode to move the electrode cut through the cutting part,
wherein the moving part comprises a moving suction belt configured to vacuum-suction and move the electrode,
wherein the moving suction belt fixes an end of the electrode when the electrode is cut in the cutting part,
wherein, when the electrode is cut in the cutting part, the moving part maintains tension of the electrode in the traveling direction of the electrode through the moving suction belt,
wherein the supply part and the moving part are separated by a gap,
wherein the cutting part is interposed between the supply part and the moving part in the gap,
wherein the cutting part is configured to cut the electrode while the electrode is vacuum-suctioned by the moving part and being extended from the moving part to the supply part,
wherein the cutting part further comprises:
a cutting blade configured to cut the electrode;
a first eccentric cam part disposed above the electrode when the electrode is cut, the first eccentric cam part being configured to drive the cutting blade, the first eccentric cam part including a first rotating part configured to rotate about a center axis, a first mounting plate on which the cutting blade is mounted, and a first eccentric cam that eccentrically couples the first rotating part to the first mounting plate,
a cutting block to engage the cutting blade, and
a second eccentric cam part disposed below the electrode when the electrode is cut, the second eccentric cam part including a second rotating part configured to rotate about a center axis, a second mounting plate eccentrically coupled to the first rotating part of the first eccentric cam part, and the cutting block mounted on the second mounting plate,
wherein rotations of the first rotating part and the second rotating part are synchronized so that the cutting blade and the cutting block approach each other or move away from each other in synchronization,
wherein each of the first mounting plate and the second mounting plate includes a through-hole, and
wherein a guide rod is coupled to the first mounting plate and the second mounting plate and positioned through each through-hole of the first mounting plate and the second mounting plate and movements of the first mounting plate and the second mounting plate are guided by the guide rod during rotations of the first rotating part and the second rotating part.