US 12,243,977 B2
Electrolytes for high-voltage cathode materials and other applications
Jia Du, Woburn, MA (US); Peishen Huang, Woburn, MA (US); Karlie Mellott, Woburn, MA (US); and Dong Ren, Woburn, MA (US)
Assigned to Factorial Inc., Woburn, MA (US)
Filed by Factorial Inc., Woburn, MA (US)
Filed on Apr. 22, 2024, as Appl. No. 18/641,687.
Application 18/148,482 is a division of application No. 16/512,495, filed on Jul. 16, 2019, granted, now 11,575,147, issued on Feb. 7, 2023.
Application 18/641,687 is a continuation of application No. 18/148,482, filed on Dec. 30, 2022, granted, now 11,967,675.
Prior Publication US 2024/0347761 A1, Oct. 17, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 10/0565 (2010.01); H01M 4/38 (2006.01); H01M 10/0525 (2010.01); H01M 10/0567 (2010.01); H01M 10/0569 (2010.01)
CPC H01M 10/0525 (2013.01) [H01M 4/38 (2013.01); H01M 10/0565 (2013.01); H01M 10/0567 (2013.01); H01M 10/0569 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A polymer solid electrolyte synthesized by crosslinking a mixture comprising a lithium salt, a crosslinkable monomer, an ion dissociation compound, and an additive that can enhance capacity retention of an electrochemical device, wherein the volume ratio of the additive to the ion dissociation compound is between 5/95 and 50/50 and the polymer solid electrolyte has an oxidation potential of at least 4.5 V with reference to Li/Li+, wherein the crosslinkable monomer has a formula of:

OG Complex Work Unit Chemistry
where R1 comprises a structure selected from the group consisting of:

OG Complex Work Unit Chemistry
where n is an integer between 1 and 10,000, inclusive; where m is an integer between 1 and 5,000, inclusive; where R2, R3, R4, R5, and R6 are each independently selected from the group consisting of hydrogen, methyl, ethyl, phenyl and benzyl, acrylate, epoxy ethyl, isocyanate, cyclic carbonate, lactone, lactam, and vinyl; and where * indicates a point of attachment.