US 12,261,268 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 Jul. 28, 2023, as Appl. No. 18/361,290.
Application 18/361,290 is a continuation of application No. 16/860,326, filed on Apr. 28, 2020, granted, now 11,757,127.
Claims priority of provisional application 62/863,059, filed on Jun. 18, 2019.
Prior Publication US 2023/0387457 A1, Nov. 30, 2023
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)] 21 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 an alcohol and a 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. to manufacture the lithium solid electrolyte,
wherein the phthalate is a substituted phthalate.