US 12,224,444 B2
Electrode assembly and secondary lithium battery including the same
Jooyong Song, Daejeon (KR); In Chul Kim, Daejeon (KR); Juri Kim, Daejeon (KR); and Hyun Min Kim, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Filed by LG ENERGY SOLUTION, LTD., Seoul (KR)
Filed on Feb. 25, 2022, as Appl. No. 17/681,149.
Application 17/681,149 is a continuation of application No. 16/606,813, granted, now 11,329,290, previously published as PCT/KR2018/015111, filed on Nov. 30, 2018.
Claims priority of application No. 10-2017-0164085 (KR), filed on Dec. 1, 2017; and application No. 10-2018-0151236 (KR), filed on Nov. 29, 2018.
Prior Publication US 2022/0181638 A1, Jun. 9, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 4/62 (2006.01); H01M 4/04 (2006.01); H01M 4/131 (2010.01); H01M 4/134 (2010.01); H01M 4/38 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/66 (2006.01); H01M 10/0525 (2010.01); H01M 10/0585 (2010.01)
CPC H01M 4/628 (2013.01) [H01M 4/0404 (2013.01); H01M 4/131 (2013.01); H01M 4/134 (2013.01); H01M 4/386 (2013.01); H01M 4/667 (2013.01); H01M 10/0525 (2013.01); H01M 10/0585 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An electrode assembly configured by alternately stacking two or more positive electrodes and one or more negative electrodes with a separator as a boundary therebetween, wherein:
outermost positive electrodes are positioned on outermost opposite surfaces of the electrode assembly, respectively;
each of the outermost positive electrodes includes a positive electrode current collector, a positive active material layer disposed on one surface of the positive electrode current collector, and a non-reversible material coating layer disposed on an opposite surface of the positive electrode current collector and including lithium oxide as a non-reversible material;
the non-reversible material coating layer is positioned on an outermost surface of the electrode assembly;
the lithium oxide comprises one selected from the group consisting of Li2O2, Li2O, Li2NiO2, and mixtures thereof; and
wherein the negative electrode includes a silicon (Si)-based material as a negative active material,
wherein the non-reversible material coating layer further includes a catalyst.