US 12,407,028 B2
Electrode assembly, battery, and battery pack and vehicle including the same
Hae-Jin Lim, Daejeon (KR); Jin-Hak Kong, Daejeon (KR); Soon-O Lee, Daejeon (KR); Kyu-Hyun Choi, Daejeon (KR); Do-Gyun Kim, Daejeon (KR); Su-Ji Choi, Daejeon (KR); Kwang-Su Hwangbo, Daejeon (KR); Geon-Woo Min, Daejeon (KR); Min-Ki Jo, Daejeon (KR); Jae-Won Lim, Daejeon (KR); Hak-Kyun Kim, Daejeon (KR); Je-Jun Lee, Daejeon (KR); Ji-Min Jung, Daejeon (KR); Jae-Woong Kim, Daejeon (KR); Jong-Sik Park, Daejeon (KR); Yu-Sung Choe, Daejeon (KR); Byoung-Gu Lee, Daejeon (KR); Duk-Hyun Ryu, Daejeon (KR); Kwan-Hee Lee, Daejeon (KR); Jae-Eun Lee, Daejeon (KR); Bo-Hyun Kang, Daejeon (KR); and Pil-Kyu Park, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Filed by LG ENERGY SOLUTION, LTD., Seoul (KR)
Filed on Feb. 4, 2022, as Appl. No. 17/592,608.
Claims priority of application No. 10-2021-0022881 (KR), filed on Feb. 19, 2021; application No. 10-2021-0022891 (KR), filed on Feb. 19, 2021; application No. 10-2021-0022894 (KR), filed on Feb. 19, 2021; application No. 10-2021-0022897 (KR), filed on Feb. 19, 2021; application No. 10-2021-0024424 (KR), filed on Feb. 23, 2021; application No. 10-2021-0030291 (KR), filed on Mar. 8, 2021; application No. 10-2021-0030300 (KR), filed on Mar. 8, 2021; application No. 10-2021-0046798 (KR), filed on Apr. 9, 2021; application No. 10-2021-0058183 (KR), filed on May 4, 2021; application No. 10-2021-0077046 (KR), filed on Jun. 14, 2021; application No. 10-2021-0084326 (KR), filed on Jun. 28, 2021; application No. 10-2021-0131205 (KR), filed on Oct. 1, 2021; application No. 10-2021-0131207 (KR), filed on Oct. 1, 2021; application No. 10-2021-0131208 (KR), filed on Oct. 1, 2021; application No. 10-2021-0131215 (KR), filed on Oct. 1, 2021; application No. 10-2021-0131225 (KR), filed on Oct. 1, 2021; application No. 10-2021-0137001 (KR), filed on Oct. 14, 2021; application No. 10-2021-0137856 (KR), filed on Oct. 15, 2021; application No. 10-2021-0142196 (KR), filed on Oct. 22, 2021; application No. 10-2021-0153472 (KR), filed on Nov. 9, 2021; application No. 10-2021-0160823 (KR), filed on Nov. 19, 2021; application No. 10-2021-0163809 (KR), filed on Nov. 24, 2021; application No. 10-2021-0165866 (KR), filed on Nov. 26, 2021; application No. 10-2021-0172446 (KR), filed on Dec. 3, 2021; application No. 10-2021-0177091 (KR), filed on Dec. 10, 2021; application No. 10-2021-0194572 (KR), filed on Dec. 31, 2021; application No. 10-2021-0194593 (KR), filed on Dec. 31, 2021; application No. 10-2021-0194610 (KR), filed on Dec. 31, 2021; application No. 10-2021-0194611 (KR), filed on Dec. 31, 2021; application No. 10-2021-0194612 (KR), filed on Dec. 31, 2021; and application No. 10-2022-0001802 (KR), filed on Jan. 5, 2022.
Prior Publication US 2022/0271345 A1, Aug. 25, 2022
Int. Cl. H01M 10/0587 (2010.01); H01M 4/64 (2006.01); H01M 4/70 (2006.01); H01M 50/107 (2021.01); H01M 50/152 (2021.01); H01M 50/179 (2021.01); H01M 50/183 (2021.01); H01M 50/188 (2021.01); H01M 50/213 (2021.01); H01M 50/242 (2021.01); H01M 50/507 (2021.01); H01M 50/509 (2021.01); H01M 50/531 (2021.01); H01M 50/533 (2021.01); H01M 50/536 (2021.01); H01M 50/55 (2021.01); H01M 50/559 (2021.01); H01M 50/567 (2021.01)
CPC H01M 10/0587 (2013.01) [H01M 4/64 (2013.01); H01M 4/70 (2013.01); H01M 50/107 (2021.01); H01M 50/152 (2021.01); H01M 50/179 (2021.01); H01M 50/183 (2021.01); H01M 50/188 (2021.01); H01M 50/213 (2021.01); H01M 50/242 (2021.01); H01M 50/507 (2021.01); H01M 50/509 (2021.01); H01M 50/531 (2021.01); H01M 50/533 (2021.01); H01M 50/536 (2021.01); H01M 50/55 (2021.01); H01M 50/559 (2021.01); H01M 50/567 (2021.01); H01M 2220/20 (2013.01)] 79 Claims
OG exemplary drawing
 
1. An electrode assembly, comprising:
a first electrode;
a second electrode; and
a separator between the first electrode and the second electrode, the first electrode, the second electrode, and the separator wound about an axis defining a core and an outer circumference of the electrode assembly,
wherein the first electrode includes a first portion coated with an active material and a second portion at a first side and adjacent the first portion, the second portion being exposed beyond the separator along a first axial direction of the electrode assembly,
wherein a part of the second portion is bent in a radial direction of the electrode assembly forming a first surface region including stacked layers of the second portion,
wherein, in a partial region of the first surface region, a number of the stacked layers of the second portion is 10 or more in the first axial direction,
wherein the second portion includes a plurality of segments, and
wherein segments immediately adjacent each other in the radial direction of the electrode assembly are offset in a circumferential direction of the electrode assembly.