# US 2022/0045359 A1 · Mechanically robust solid electrolyte compositions for alkali and beyond alkali metal batteries > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2022/0045359 A1 - Document ID: US20220045359A1 - Status: Published application - Kind: A1 - Application number: 17/397,233 - Filed: 2021-08-09 - Published: 2022-02-10 - Earliest claimed: 2020-08-10 - Applicants: UT-Battelle, LLC - Inventors: Jagjit Nanda; Guang Yang; Tomonori Saito; Frank M. Delnick - Web page: https://patentgrep.com/patent/US20220045359A1 ## CPC - H01M 10/0565: Polymeric materials, e.g. gel-type or solid-type - H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries - H01M 2300/0082: Organic polymers - H01M 2300/0085: Immobilising or gelification of electrolyte - Y02E 60/10: Energy storage using batteries - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A solid electrolyte (SE) composition comprising: (i) a crosslinked organic polymer containing at least one of oxygen and nitrogen atoms; (ii) an inorganic component having a metal oxide or metal sulfide composition and which is distributed throughout the crosslinked organic polymer and interacts by hydrogen bonding with the crosslinked organic polymer; and (iii) metal ions selected from the group consisting of lithium, sodium, potassium, magnesium, calcium, zinc, and aluminum. Also described herein are solid-state batteries comprising: a) an anode; (b) a cathode; and (c) the solid electrolyte composition described above. Also described herein is a method for producing the SE composition, comprising: a) homogeneously mixing the following components: (i) an organic polymer; (ii) an inorganic component; (iii) metal ions, and (iv-b) a low-boiling solvent functioning to dissolve components (i) and (iii); (b) crosslinking the organic polymer to produce a crosslinked organic polymer; and (c) removing the low-boiling solvent. ## Claims ### Claim 1 A solid electrolyte composition comprising the following components: (i) a crosslinked organic polymer containing at least one of oxygen and nitrogen atoms; (ii) an inorganic component having a metal oxide or metal sulfide composition and which is distributed throughout the crosslinked organic polymer and interacts by hydrogen bonding with the crosslinked organic polymer; and (iii) metal ions selected from the group consisting of lithium, sodium, potassium, magnesium, calcium, zinc, and aluminum. ### Claim 2 (depends on 1) The solid electrolyte composition of claim 1, further comprising: (iv-a) a high-boiling solvent functioning as a plasticizer of the crosslinked organic polymer, wherein the high-boiling solvent contains at least one of oxygen and nitrogen atoms and has a boiling point of at least 120° C. ### Claim 3 (depends on 2) The solid electrolyte composition of claim 2, wherein the high-boiling solvent is an ether solvent. ### Claim 4 (depends on 1) The solid electrolyte composition of claim 1, wherein the crosslinked organic polymer comprises a polyalkylene oxide. ### Claim 5 (depends on 4) The solid electrolyte composition of claim 4, wherein the polyalkylene oxide comprises polyethylene oxide. ### Claim 6 (depends on 1) The solid electrolyte composition of claim 1, wherein the inorganic component has a metal oxide composition. ### Claim 7 (depends on 6) The solid electrolyte composition of claim 6, wherein the metal oxide comprises silicon oxide. ### Claim 8 (depends on 6) The solid electrolyte composition of claim 6, wherein the metal oxide composition is glass fiber. ### Claim 9 (depends on 8) The solid electrolyte composition of claim 8, wherein the glass fiber is woven. ### Claim 10 (depends on 8) The solid electrolyte composition of claim 8, wherein the glass fiber is non-woven. ### Claim 11 (depends on 1) The solid electrolyte composition of claim 1, wherein component (iii) comprises lithium ions. ### Claim 12 (depends on 1) The solid electrolyte composition of claim 1, wherein said solid electrolyte is in the shape of a film having a thickness of up to 200 microns. ### Claim 13 A solid-state battery comprising: a) an anode; (b) a cathode; and (c) a solid electrolyte composition comprising the following components: (i) a crosslinked organic polymer containing at least one of oxygen and nitrogen atoms; (ii) an inorganic component having a metal oxide or metal sulfide composition and which is distributed throughout the crosslinked organic polymer and interacts by hydrogen bonding with the crosslinked organic polymer; and (iii) metal ions selected from the group consisting of lithium, sodium, potassium, magnesium, calcium, zinc, and aluminum; wherein the solid electrolyte is in the shape of a film having a thickness of up to 200 microns. ### Claim 14 (depends on 13) The solid-state battery of claim 13, wherein the solid electrolyte further comprises: (iv-a) a high-boiling solvent functioning as a plasticizer of the crosslinked organic polymer, wherein the high-boiling solvent contains at least one of oxygen and nitrogen atoms and has a boiling point of at least 120° C. ### Claim 15 (depends on 13) The solid-state battery of claim 13, wherein the high-boiling solvent is an ether solvent. ### Claim 16 (depends on 13) The solid-state battery of claim 13, wherein the crosslinked organic polymer comprises a polyalkylene oxide. ### Claim 17 (depends on 16) The solid-state battery of claim 16, wherein the polyalkylene oxide comprises polyethylene oxide. ### Claim 18 (depends on 13) The solid-state battery of claim 13, wherein the inorganic component has a metal oxide composition. ### Claim 19 (depends on 18) The solid-state battery of claim 18, wherein the metal oxide comprises silicon oxide. ### Claim 20 (depends on 18) The solid-state battery of claim 18, wherein the metal oxide composition is glass fiber. ### Claim 21 (depends on 20) The solid-state battery of claim 20, wherein the glass fiber is woven. ### Claim 22 (depends on 20) The solid-state battery of claim 20, wherein the glass fiber is non-woven. ### Claim 23 (depends on 13) The solid-state battery of claim 13, wherein the solid-state battery is a lithium-based battery and component (iii) comprises lithium ions. ### Claim 24 A method for producing a solid electrolyte composition, the method comprising: (a) homogeneously mixing the following components: (i) an organic polymer containing at least one of oxygen and nitrogen atoms; (ii) an inorganic component having a metal oxide or metal sulfide composition; (iii) metal ions selected from the group consisting of lithium, sodium, potassium, magnesium, calcium, zinc, and aluminum, and (iv-b) a low-boiling solvent functioning to dissolve components (i) and (iii), wherein the low-boiling solvent has a boiling point of less than 120° C.; (b) crosslinking the organic polymer to produce a crosslinked organic polymer; and (c) removing the low-boiling solvent; wherein the inorganic component is distributed throughout the crosslinked organic polymer and interacts by hydrogen bonding with the crosslinked organic polymer. ### Claim 25 (depends on 24) The method of claim 24, wherein the low-boiling solvent has a boiling point of less than 100° C. ### Claim 26 (depends on 24) The method of claim 24, wherein the low-boiling solvent is an alcohol. ### Claim 27 (depends on 24) The method of claim 24, wherein the organic polymer comprises a polyalkylene oxide. ### Claim 28 (depends on 27) The method of claim 27, wherein the polyalkylene oxide comprises polyethylene oxide.