US 12,261,321 B2
Solid-state polymer separator for lithium-ion batteries
Claudiu B. Bucur, Sunrise, FL (US)
Assigned to Piersica Inc., Sunrise, FL (US)
Filed by Piersica Inc., Sunrise, FL (US)
Filed on Apr. 29, 2021, as Appl. No. 17/243,980.
Claims priority of provisional application 63/018,178, filed on Apr. 30, 2020.
Prior Publication US 2021/0344079 A1, Nov. 4, 2021
Int. Cl. H01M 50/411 (2021.01); H01M 10/0525 (2010.01); H01M 10/0565 (2010.01); H01M 50/44 (2021.01)
CPC H01M 50/411 (2021.01) [H01M 10/0525 (2013.01); H01M 10/0565 (2013.01); H01M 50/44 (2021.01)] 17 Claims
OG exemplary drawing
 
1. A battery, the battery comprising:
an at least one cathode;
an at least one anode; and
an at least one solid separator in contact with said at least one cathode and said at least one anode, the at least one solid separator comprising a Li+ conductive main polymer comprising a plurality of carbonate monomers and an at least one spacer monomer, a structural polymer, and a reinforcing additive that in combination form a Li+ conductive solid fibrous mat;
wherein said plurality of carbonate monomers is an at least one monomer from a group of monomers, the group consisting of a vinylene carbonate, a prop-1-ene1,3-sultone, a 4-vinyl-1,3-dioxolan-2-one, and an allyl methyl carbonate and wherein said Li+ conductive main polymer further comprises an at least one additional monomer from a group of additional monomers, the group consisting of an oxirane, a glycidyl acrylate, a succinonitrile, and a polyacrylonitrile.