US 12,407,020 B2
High ionic conductivity polymer electrolyte compositions for alkali and beyond alkali metal batteries
Tomonori Saito, Knoxville, TN (US); Michelle Lehmann, Knoxville, TN (US); and Jagjit Nanda, Knoxville, TN (US)
Assigned to UT-Battelle, LLC, Oak Ridge, TN (US)
Filed by UT-Battelle, LLC, Oak Ridge, TN (US)
Filed on Mar. 24, 2022, as Appl. No. 17/703,371.
Claims priority of provisional application 63/165,865, filed on Mar. 25, 2021.
Prior Publication US 2022/0311051 A1, Sep. 29, 2022
Int. Cl. H01M 10/0565 (2010.01); H01M 10/0525 (2010.01)
CPC H01M 10/0565 (2013.01) [H01M 10/0525 (2013.01); H01M 2300/0082 (2013.01); H01M 2300/0085 (2013.01)] 27 Claims
OG exemplary drawing
 
1. A solid electrolyte composition comprising the following components:
(i) an organic polymer comprising a polymeric backbone and pendant groups, wherein said polymeric backbone contains at least one polyethylene and/or polypropylene block and at least a portion of said pendant groups are phenyl groups, wherein a portion of said phenyl groups are attached to an anionic group associated with a first metal ion selected from the group consisting of lithium, sodium, potassium, magnesium, calcium, zinc, and aluminum ions;
(ii) a solvent homogeneously incorporated in the polymer to result in a polymer gel system; and
(iii) a metal salt dissolved in the solvent in a molar concentration of 0.05 M to 1.5 M and containing a second metal ion associated with an anion, wherein the second metal ion is selected from the group consisting of lithium, sodium, potassium, magnesium, calcium, zinc, and aluminum ions, provided that the first and second metal ions are the same.