US 11,942,629 B2
Lithium electrode and lithium secondary battery comprising same
Suk Il Youn, Daejeon (KR); Byoungkuk Son, Daejeon (KR); Junghun Choi, Daejeon (KR); and Minchul Jang, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/040,244
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Jan. 10, 2020, PCT No. PCT/KR2020/000527
§ 371(c)(1), (2) Date Sep. 22, 2020,
PCT Pub. No. WO2020/145753, PCT Pub. Date Jul. 16, 2020.
Claims priority of application No. 10-2019-0003695 (KR), filed on Jan. 11, 2019.
Prior Publication US 2021/0020927 A1, Jan. 21, 2021
Int. Cl. H01M 4/00 (2006.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 4/60 (2006.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 50/46 (2021.01); H01M 4/02 (2006.01); H01M 10/052 (2010.01)
CPC H01M 4/382 (2013.01) [H01M 4/366 (2013.01); H01M 4/604 (2013.01); H01M 4/62 (2013.01); H01M 10/0525 (2013.01); H01M 50/46 (2021.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); H01M 10/052 (2013.01); H01M 2300/0051 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A lithium secondary battery comprising:
a positive electrode;
a lithium negative electrode;
a separator interposed between the positive electrode and the lithium negative electrode; and
an electrolyte solution;
wherein the lithium negative electrode comprises:
a lithium metal layer; and
an acrylic polymer layer formed on at least one surface of the lithium metal layer,
wherein the acrylic polymer layer consists of an acrylic polymer and an acid releasing agent,
wherein the acrylic polymer layer consists of the acrylic polymer in an amount of 99.9% by weight to 99.99% by weight, and the acid releasing agent in an amount of 0.01% by weight to 0.1% by weight, and
wherein the electrolyte solution is a carbonate-based electrolyte solution.