US 12,272,839 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 Nov. 1, 2024, as Appl. No. 18/935,093.
Application 18/935,093 is a continuation of application No. 17/860,645, filed on Jul. 8, 2022.
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 2025/0062494 A1, Feb. 20, 2025
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)] 14 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, and the plurality of separator portions including a top separator portion abutting the top electrode and including a bottom separator portion abutting the bottom electrode,
wherein a maximum thickness of each of the electrodes in the stack is less than 8.3 mm, and
wherein a value of air permeability of the bottom separator portion is smaller than a value of air permeability of the top separator portion.