US 12,191,437 B2
Apparatus for pressing battery cell
Yeeun Kim, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/283,712
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Jul. 9, 2020, PCT No. PCT/KR2020/009036
§ 371(c)(1), (2) Date Apr. 8, 2021,
PCT Pub. No. WO2021/091045, PCT Pub. Date May 14, 2021.
Claims priority of application No. 10-2019-0140360 (KR), filed on Nov. 5, 2019.
Prior Publication US 2022/0021017 A1, Jan. 20, 2022
Int. Cl. B30B 1/00 (2006.01); H01M 10/04 (2006.01); H01M 10/052 (2010.01)
CPC H01M 10/0481 (2013.01) [B30B 1/005 (2013.01); H01M 10/052 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An apparatus for pressing a battery cell, the apparatus comprising:
a first pressing plate; and
a second pressing plate spaced from the first pressing plate to receive a battery cell therebetween and to press the battery cell,
wherein at least one of the first pressing plate or the second pressing plate is formed of a shape memory material to provide a pressing member,
wherein the shape memory material comprises a shape memory polymer,
wherein the pressing member is configured to store a shape in accordance with the battery cell at a temperature at which the battery cell is driven, and
wherein deformation of the pressing member due to a volume expansion of the battery cell acts as a force for returning the shape of the pressing member to an original shape of the pressing member after the battery cell is driven, thereby pressing the battery cell.