Phosphate-garnet solid electrolyte structure
AssigneeCorning Incorporated
InventorsMichael Edward Badding, Paul Oakley Johnson, Xinyuan Liu
Life of this patent
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Abstract
A composite electrolyte tri-layer structure, including a first layer having a first ceramic electrolyte, where the first electrolyte is stable against contact with lithium metal, a second layer having a second ceramic electrolyte, where the second electrolyte is stable against aqueous contact, and a third layer having a third non-aqueous electrolyte interposed between the first layer and second layer, wherein the first electrolyte, the second electrolyte, and the third electrolyte each have a different relative chemical stability. Also disclosed is a method of making and using the tri-layer structure, and an energy storage article or device incorporating at least one of the tri-layer structures.
Claims19
A composite electrolyte tri-layer structure, comprising:
- (a) a first layer comprising a first ceramic electrolyte, wherein the first layer is a solid lithium garnet composition stable to contact with lithium metal;
- (b) a second layer comprising a second ceramic electrolyte, wherein the second layer is a solid metal phosphate electrolyte stable to aqueous contact;
- and
- (c) a third layer comprising a third non-aqueous electrolyte interposed between and in direct contact with the first layer and second layer, wherein the third layer is selected from at least one of:
- a liquid, a gel, a solid polymer, or a combination thereof, and is a mixture of an inorganic electrolyte salt and organic solvent,
- wherein the first electrolyte, the second electrolyte, and the third electrolyte each have a different relative chemical stability.
A lithium-ion battery comprising:
- internal components comprising and structured in the order listed:
- an anode comprising lithium metal;
- a first ceramic electrolyte adjacent to the anode, wherein the first ceramic electrolyte is a solid lithium garnet composition stable to contact with lithium metal;
- a non-aqueous electrolyte adjacent to and in direction contact with the first ceramic electrolyte, wherein the non-aqueous electrolyte is selected from at least one of:
- a liquid, a gel, a solid polymer, or a combination thereof, and is a mixture of an inorganic electrolyte salt and organic solvent;
- a second ceramic electrolyte adjacent to and in direction contact with the non-aqueous electrolyte, wherein the second ceramic electrolyte is a solid metal phosphate electrolyte stable to aqueous contact;
- a cathode comprising an aqueous catholyte adjacent to the second ceramic electrolyte, wherein the cathode includes an interior seal that contains the aqueous catholyte and isolates the aqueous catholyte from the anode;
- and
- a container that contains and isolates the internal components from the external atmosphere;
- and wherein the first ceramic electrolyte, the second ceramic electrolyte, and the non-aqueous electrolyte each have a different relative chemical stability.
Dependencies are inferred from the claim text.