Electrolyte material and methods of forming
AssigneeSaint-Gobain Ceramics & Plastics, Inc.
InventorsVladimir Ouspenski, Gaurav Assat
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Abstract
A solid electrolyte material can include a halide-based material having a crystalline structure including a disorder. In an embodiment, the solid electrolyte material can include a crystalline structure include stacking faults. In another embodiment, the solid electrolyte material can include a crystalline phase including a crystalline structure represented by a space group of the hexagonal crystal system or a space group of a rhombohedral lattice system. In another embodiment, the solid electrolyte material can include a crystalline phase including a crystalline structure represented by a monoclinic space group and a unit cell containing a reduced number of halogen atoms.
Claims20
A solid electrolyte material, comprising:
- M3−z(Mek+)fX3−z+k*f, wherein −3≤z<3;
- 2≤k≤6;
- 0≤f≤1;
- M comprises an alkali metal element;
- Me comprises a divalent metal element, a trivalent metal element, a tetravalent metal element, a pentavalent metal element, a hexavalent metal element, or any combination thereof;
- and X comprises a halogen;
- a crystalline structure including stacking faults of at least 20% and an average diffraction crystallite size of at least 25 nm.
A solid electrolyte material, comprising
- M3−z(Mek+)fX3−z+k*f, wherein −3≤z<3;
- 2≤k≤6;
- 0≤f≤1;
- M comprises an alkali metal element;
- Me comprises a divalent metal element, a trivalent metal element, a tetravalent metal element, a pentavalent metal element, a hexavalent metal element, or any combination thereof;
- and X comprises a halogen;
- a crystalline structure represented by a rhombohedral space group or a hexagonal space group and including an average diffraction crystallite size of at least 25 nm.
A solid electrolyte material, comprising:
- M3−z(Mek+)fX3−z+k*f, wherein −3≤z<3;
- 2≤k≤6;
- 0≤f≤1;
- M comprises an alkali metal element;
- Me comprises a divalent metal element, a trivalent metal element, a tetravalent metal element, a pentavalent metal element, a hexavalent metal element, or any combination thereof;
- and X comprises a halogen;
- a crystalline structure represented by a monoclinic space group having a unit cell containing between 3 and 5 halide atoms and including an average diffraction crystallite size of at least 25 nm.
Dependencies are inferred from the claim text.