US 12,341,179 B2
Fabrication method of positive electrode for secondary battery and secondary battery including the positive electrode
Byoung Wook Jo, Daejeon (KR); Byung Chan Kang, Daejeon (KR); Yong Hee Kang, Daejeon (KR); Sung Jun Park, Daejeon (KR); and Hyo Sung Lim, Daejeon (KR)
Assigned to SK ON CO., LTD., Seoul (KR)
Filed by SK ON CO., LTD., Seoul (KR)
Filed on Aug. 5, 2021, as Appl. No. 17/395,141.
Claims priority of application No. 10-2020-0097885 (KR), filed on Aug. 5, 2020.
Prior Publication US 2022/0045308 A1, Feb. 10, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 4/04 (2006.01); H01M 4/02 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/62 (2006.01)
CPC H01M 4/0404 (2013.01) [H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/622 (2013.01); H01M 2004/028 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A fabrication method of a positive electrode for a secondary battery, comprising:
(a) heating a slurry composition containing a positive electrode active material, a binder, and a solvent to a temperature lower than a boiling point (Tb) of the solvent;
(b) applying the heated slurry composition onto a current collector;
(c) cooling the applied slurry composition; and
(d) drying the cooled slurry composition,
wherein the cooling is performed immediately after the applying and at a temperature of 10 to 30° C., and
wherein the drying is performed at a temperature of 100° C. or more and less than 180° C.