Solid-state multi-layer electrolyte, electrochemical cell and battery including the electrolyte, and method of forming same
AssigneeThe Regents of the University of Colorado, a body corporate
InventorsJAMES TREVEY, SE-HEE LEE, JAE-HA WOO
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Abstract
An electrochemical cell including a multi-layer solid-state electrolyte, a battery including the cell, and a method of forming the battery and cell are disclosed. The electrolyte includes a first layer that is compatible with the anode of the cell and a second layer that is compatible with the cathode of the cell. The cell exhibits improved performance compared to cells including a single-layer electrolyte.
Claims20
A solid-state electrochemical cell based on lithium ion transport, the cell comprising:
- an anode;
- a composite cathode comprising electroactive cathode material;
- and
- a solid-state electrolyte interposed between the anode and cathode, wherein the solid-state electrolyte comprises:
- a first electrolyte layer that is stable with regard to the anode;
- and
- a second electrolyte layer that is stable with regard to the cathode.
A method of forming an electrochemical cell, the method comprising the steps of:
- providing an anode;
- providing a cathode comprising electroactive cathode material;
- and
- providing a solid-state electrolyte, wherein the step of providing a solid-state electrolyte comprises the steps of:
- preparing a first electrolyte layer composition;
- preparing a second electrolyte layer composition;
- and
- forming a multi-layer electrolyte using the first electrolyte layer and the second electrolyte layer.
A battery comprising:
- a housing;
- a first terminal;
- an anode coupled to the first terminal;
- a solid-state electrolyte comprising a first electrolyte layer stable with regard to the anode and a second electrolyte layer stable with regard to the cathode;
- a cathode;
- and
- a second terminal coupled to the cathode.
Dependencies are inferred from the claim text.