Methods of improving electrode stability in high voltage energy storage devices
AssigneeOhio State Innovation Foundation
InventorsJung Hyun KIM, Chanyeop YU, Xinwei JIAO
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Abstract
Described herein is a solid electric conductor and methods of making and using the solid electric conductor. The solid electric conductor can include two discrete populations of particles intermixed. A first population of particles can include an ionically conducting solid-electrolyte, and a second population of particles can include an electrode active material. The compositions and methods described allow to achieve high specific energy, good cycle/calendar life, and low cobalt (Co) loading to reduce the cost of battery cells.
Claims25
A solid electric conductor comprising two discrete populations of particles intermixed, wherein the first population of particles comprises an ionically conducting solid-electrolyte, and the second population of particles comprises an electrode active material.
A method of making a solid electric conductor, the method comprising:
- contacting a first population of particles comprising an ionically conducting solid-electrolyte with a second population of particles comprising an electrode active material.
23-46. (canceled)
A battery comprising:
- an anode and a cathode disposed in a housing;
- and
- an electrolyte disposed between the cathode and the anode providing an ionically conductive pathway between the anode and the cathode;
- wherein the anode, the cathode, or any combination thereof comprises an electrode active material and an ionically conducting solid-electrolyte;
- wherein the cathode material comprises a layered structured cathode material;
- and
- wherein the ionically conducting solid-electrolyte is present in an amount effective such that the battery exhibits greater than 80% capacity retention during 1000 cycles above 4.3V.
48-53. (canceled)
Dependencies are inferred from the claim text.