Polymerized in-situ hybrid solid ion-conductive compositions
Provided herein are methods of forming solid-state ionically conductive composite materials that include particles of an inorganic phase in a matrix of an organic phase. The methods involve forming the composite materials from a precursor that is polymerized in-situ after being mixed with the particles. The polymerization occurs under applied pressure that causes particle-to-particle contact. In some embodiments, once polymerized, the applied pressure may be removed with the particles immobilized by the polymer matrix. In some implementations, the organic phase includes a cross-linked polymer network. Also provided are solid-state ionically conductive composite materials and batteries and other devices that incorporate them. In some embodiments, solid-state electrolytes including the ionically conductive solid-state composites are provided. In some embodiments, electrodes including the ionically conductive solid-state composites are provided.
1. A solid-state composition comprising:
ionically conductive inorganic particles in a non-ionically conductive polymer matrix, wherein particle-to-particle contact between the ionically conductive inorganic particles provides ionically conductive pathways through the composition such that the composition has an ion conductivity of at least 1×10 −4 S·cm −1 , and wherein the non-ionically conductive polymer matrix comprises a polymer backbone functionalized with an acrylamide or maleic anhydride or a combination thereof.
2. The composition of claim 1 , wherein the ionically conductive inorganic particles are at least 50% by weight of the composition.
3. The composition of claim 1 , wherein the non-ionically conductive polymer matrix is 2.5%-60% by weight of the composition.
4. The composition of claim 1 , wherein the non-ionically conductive polymer matrix is at least 20% by weight of the composition.
5. The composition of claim 1 , wherein the ionically conductive inorganic particles are sulfide glass particles.
6. The composition of claim 1 , wherein the non-ionically conductive polymer matrix is polymerized in-situ.
7. The composition of claim 1 , wherein the ionically conductive inorganic particles are sulfides.
8. The composition of claim 1 , wherein the non-ionically conductive polymer matrix comprises a polymer binder selected from styrene ethylene butylene styrene (SEBS), styrene-butadiene-styrene (SBS), styrene-isoprene-styrene (SIS), styrene-butadiene rubber (SBR), polystyrene (PSt), polybutatdiene (PBD), polyethylene (PE), and polyisoprene (PI).
9. The composition of claim 1 , wherein the polymer backbone is functionalized with an acrylamide.
10. The composition of claim 1 , wherein the polymer backbone is functionalized with maleic anhydride.
11. The composition of claim 1 , wherein the non-ionically conductive polymer matrix comprises a copolymer.
12. The composition of claim 11 , wherein the copolymer comprises a poly(styrene).
13. A solid-state composition comprising:
ionically conductive inorganic particles in a non-ionically conductive polymer matrix, wherein the composition has an ion conductivity of at least 1×10 −4 S cm −1 , wherein the non-ionically conductive polymer matrix comprises a polymer binder selected from styrene ethylene butylene styrene (SEBS), styrene-butadiene-styrene (SBS), styrene-isoprene-styrene (SIS), styrene-butadiene rubber (SBR), polystyrene (PSt), polybutadiene (PBD), polyethylene (PE), or polyisoprene (PI), and wherein the non-ionically conductive polymer matrix further comprises maleic anhydride.
14. The composition of claim 13 , wherein the ionically conductive inorganic particles are at least 50% by weight of the composition.
15. The composition of claim 13 , wherein the non-ionically conductive polymer matrix is 2.5%-60% by weight of the composition.
16. The composition of claim 13 , wherein the non-ionically conductive polymer matrix is at least 20% by weight of the composition.
17. The composition of claim 13 , wherein the ionically conductive inorganic particles are sulfides.
18. A solid-state composition comprising:
ionically conductive inorganic particles in a non-ionically conductive polymer matrix, wherein the composition has an ion conductivity of at least 1×10 −4 S cm −1 , wherein the non-ionically conductive polymer matrix comprises a polymer binder selected from styrene ethylene butylene styrene (SEBS), styrene-butadiene-styrene (SBS), styrene-isoprene-styrene (SIS), styrene-butadiene rubber (SBR), polystyrene (PSt), polybutadiene (PBD), polyethylene (PE), or polyisoprene (PI), and wherein the non-ionically conductive polymer matrix further comprises an acrylamide.
19. The composition of claim 18 , wherein the ionically conductive inorganic particles are at least 50% by weight of the composition.
20. The composition of claim 18 , wherein the non-ionically conductive polymer matrix is 2.5%-60% by weight of the composition.
21. The composition of claim 18 , wherein the ionically conductive inorganic particles are sulfides.