US 11,757,127 B2
Lithium solid electrolyte and method of manufacture thereof
Yuntong Zhu, Cambridge, MA (US); Won Seok Chang, Seoul (KR); Jennifer Rupp, Cambridge, MA (US); and Lincoln Miara, Lincoln, MA (US)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-do (KR); and MASSACHUSETTS INSTITUTE OF TECHNOLOGY, Cambridge, MA (US)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-Si (KR); and MASSACHUSETTS INSTITUTE OF TECHNOLOGY, Cambridge, MA (US)
Filed on Apr. 28, 2020, as Appl. No. 16/860,326.
Claims priority of provisional application 62/863,059, filed on Jun. 18, 2019.
Prior Publication US 2020/0403269 A1, Dec. 24, 2020
Int. Cl. H01M 10/0562 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01)
CPC H01M 10/0562 (2013.01) [H01M 10/0525 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); H01M 2300/0068 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method of manufacturing a lithium solid electrolyte, the method comprising:
dissolving a lithium precursor, a lanthanum precursor, and a zirconium precursor in a solvent comprising methanol, a substituted propanol, and a substituted phthalate to form a solution;
disposing the solution on a substrate having a temperature of 270° C. to 500° C. to form a film; and
heat-treating the film at 300° C. to less than 750° C. for 1 hour to 100 hours to manufacture the lithium solid electrolyte.