US 12,244,038 B2
Electrode assembly
Se Hyun Yoon, Daejeon (KR); Beomsu Kim, Daejeon (KR); Yong Nam Kim, Daejeon (KR); Heeyong Kim, Daejeon (KR); Dong Hyeuk Park, Daejeon (KR); Dong Myung Kim, Daejeon (KR); and Jae Han Jung, Daejeon (KR)
Assigned to LG Energy Solution, Ltd., Seoul (KR)
Filed by LG Energy Solution, Ltd., Seoul (KR)
Filed on Jul. 8, 2022, as Appl. No. 17/860,645.
Claims priority of application No. 10-2021-0090588 (KR), filed on Jul. 9, 2021; application No. 10-2021-0090589 (KR), filed on Jul. 9, 2021; application No. 10-2021-0090590 (KR), filed on Jul. 9, 2021; application No. 10-2021-0090591 (KR), filed on Jul. 9, 2021; application No. 10-2021-0090592 (KR), filed on Jul. 9, 2021; application No. 10-2021-0090596 (KR), filed on Jul. 9, 2021; application No. 10-2021-0090597 (KR), filed on Jul. 9, 2021; application No. 10-2021-0090598 (KR), filed on Jul. 9, 2021; application No. 10-2021-0090600 (KR), filed on Jul. 9, 2021; and application No. 10-2021-0090601 (KR), filed on Jul. 9, 2021.
Prior Publication US 2023/0013024 A1, Jan. 19, 2023
Int. Cl. H01M 50/46 (2021.01); H01M 4/04 (2006.01); H01M 10/04 (2006.01); H01M 10/0525 (2010.01); H01M 10/0583 (2010.01); H01M 50/463 (2021.01); H01M 50/466 (2021.01)
CPC H01M 50/46 (2021.01) [H01M 4/043 (2013.01); H01M 4/0471 (2013.01); H01M 10/0404 (2013.01); H01M 10/0431 (2013.01); H01M 10/045 (2013.01); H01M 10/0459 (2013.01); H01M 10/0468 (2013.01); H01M 10/0525 (2013.01); H01M 10/0583 (2013.01); H01M 50/463 (2021.01); H01M 50/466 (2021.01)] 20 Claims
OG exemplary drawing
 
1. An electrode assembly, comprising:
a plurality of electrodes arranged in a stack along a stacking axis with a respective separator portion of a plurality of separator portions positioned between each of the electrodes in the stack, the plurality of electrodes including a top electrode of the plurality of electrodes positioned at a top of the stack along the stacking axis and including a bottom electrode of the plurality of electrodes positioned at a bottom of the stack along the stacking axis,
wherein the bottom electrode has a thickness along the stacking axis that is from 80% to 120% of a thickness of the top electrode along the stacking axis,
wherein a maximum thickness of each of the electrodes in the stack is less than 8.3 mm,
wherein the plurality of separator portions include a top separator portion abutting the top electrode, and wherein the top separator portion has a value of air permeability from 80 sec/100 ml to 120 sec/100 ml per square inch of the top separator portion at a pressure of 0.05 MPa.