Rapid Thermal Annealing of Cathode-Electrolyte Interface for High-Temperature Solid-State Batteries
OwnerLiangbing HU, Boyang Liu +2inventors
InventorsLiangbing HU, Boyang Liu, Kun Fu, Chengwei Wang
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Abstract
Cathode-electrolyte constructs, including such constructs in electrochemical systems, such as batteries are discussed. The cathode-electrolyte constructs can include a solid state electrolyte (SSE) and a cathode that includes particulate cathode material and the cathode conformally contacts the solid state electrolyte. Also discussed are methods of making cathode-electrolyte constructs and batteries.
Claims37
A cathode-electrolyte construct comprising:
- a solid state electrolyte;
- and
- a cathode comprising particulate cathode material, the cathode conformally contacts the solid state electrolyte.
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A high-temperature battery comprising:
- a solid state electrolyte;
- a solid cathode comprising a solid cathode active material and a cathode current collector;
- an anode comprising a captive anode active material and an anode current collector,
- wherein the high temperature battery is configured to operate at a temperature in excess of 90° C.
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A method of operating a battery comprising:
- exposing a battery to a temperature in excess of 100° C.;
- discharging or charging the battery, wherein discharging the battery comprises the steps of:
- oxidizing an anode active material at an anode to release one or more electrons and form a cation;
- conducting the cation from the anode active material into a solid-state electrolyte;
- conducting the cation through the solid-state electrolyte to a cathode;
- and
- accepting one or more electrons from the anode into the cation at the cathode to form a reduced material;
- and
- charging the battery comprises the steps of
- removing one or more electrons from the reduced material at the cathode to form the cation;
- conducting the cation from the cathode active material into the solid-state electrolyte;
- conducting the cation through the solid-state electrolyte to the anode;
- and
- adding the one or more electrons from the cathode into the cation at the anode to form the anode active material.
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Dependencies are inferred from the claim text.