US 12,009,520 B2
Secondary lithium battery anode and secondary lithium battery including same
Jungmin Lee, Yongin-si (KR); Ilkyong Kwon, Yongin-si (KR); Myungseop Kim, Yongin-si (KR); and Yuhyun Kim, Yongin-si (KR)
Assigned to Samsung SDI Co., Ltd., Yongin-si (KR)
Appl. No. 17/050,790
Filed by Samsung SDI Co., Ltd., Yongin-si (KR)
PCT Filed Mar. 15, 2019, PCT No. PCT/KR2019/003038
§ 371(c)(1), (2) Date Oct. 26, 2020,
PCT Pub. No. WO2019/208928, PCT Pub. Date Oct. 31, 2019.
Claims priority of application No. 10-2018-0048587 (KR), filed on Apr. 26, 2018.
Prior Publication US 2021/0075015 A1, Mar. 11, 2021
Int. Cl. H01M 4/583 (2010.01); H01M 4/04 (2006.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01)
CPC H01M 4/583 (2013.01) [H01M 4/0404 (2013.01); H01M 4/623 (2013.01); H01M 10/0525 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An anode for a secondary lithium battery, comprising:
a current collector, and an anode active material layer located on at least one surface of the current collector,
wherein the anode active material layer comprises an anode active material having sphericity of 0.83 to 0.91;
a binder having an average particle diameter D50 of 180 nm to 450 nm, and
adherence between the current collector and the anode active material layer is 2 pf/mm to 4 of/mm.