US 12,456,723 B2
Electrode for secondary battery and lithium secondary battery including the same
Jae Sik Shin, Daejeon (KR); and Kyung Hee Jeong, Daejeon (KR)
Assigned to SK ON CO., LTD., Seoul (KR)
Filed by SK ON CO., LTD., Seoul (KR)
Filed on Apr. 1, 2022, as Appl. No. 17/711,751.
Claims priority of application No. 10-2021-0046043 (KR), filed on Apr. 8, 2021; and application No. 10-2021-0046056 (KR), filed on Apr. 8, 2021.
Prior Publication US 2022/0336797 A1, Oct. 20, 2022
Int. Cl. H01M 4/36 (2006.01); C09D 7/40 (2018.01); C09D 7/61 (2018.01); C09D 179/08 (2006.01); H01M 4/02 (2006.01); H01M 4/13 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 50/586 (2021.01)
CPC H01M 4/366 (2013.01) [C09D 7/61 (2018.01); C09D 7/70 (2018.01); C09D 179/08 (2013.01); H01M 4/13 (2013.01); H01M 4/622 (2013.01); H01M 4/628 (2013.01); H01M 10/0525 (2013.01); H01M 50/586 (2021.01); H01M 2004/021 (2013.01)] 23 Claims
OG exemplary drawing
 
1. An electrode for a secondary battery comprising:
an electrode current collector;
an electrode active material layer formed on the electrode current collector; and
a coating layer formed on the electrode active material layer, and wherein the coating layer comprising rod-shaped inorganic particles,
wherein the rod-shaped inorganic particles have an aspect ratio other than 1, and the aspect ratio is defined as a length of major axis of the particle/a length of minor axis of the particle,
wherein a ratio of a length of major axis of the rod-shaped inorganic particle to a length of diameter of the spherical organic particle is 3 to 5.