Device and method for fast charge of batteries
AssigneesThe Research Foundation for The State University of New York, Brookhaven Science Associates, LLC
InventorsEsther S. Takeuchi, Amy C. MARSCHILOK, Kenneth TAKEUCHI, David C. BOCK
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Abstract
An anode configured for fast charging a lithium-ion battery includes an anode substrate and a coating provided on a surface of the anode substrate for increasing an overpotential of Li metal to inhibit Li metal plating during extreme fast charging a lithium-ion battery fabricated with the anode. The anode is fabricated by a process of applying a coating to the anode substrate surface that comprises a nanolayer of Cu, or a nanolayer of Ni or a composite nanolayer of Cu and Ni.
Claims28
An anode configured for fast charging a lithium-ion battery comprising:
- an anode substrate;
- a nanocoating provided on a surface of the anode substrate selected from the group of nanocoatings consisting of:
- Cu, Ni, and a composite of Cu and Ni;
- wherein the coating increases an overpotential of Li metal nucleation at the coated surface of the at least one electrode to inhibit Li metal plating during extreme fast charging.
- 2.2. The anode of claim 1, wherein extreme fast charging is charging conducted in less than 20 minutes.
The anode of claim 2, wherein the extreme fast charging is conducted in approximately 10 minutes.
A method for fabricating an anode for fast charging a lithium-ion battery, the method comprising:
- coating a surface of an anode substrate with a layer of Cu, a layer of Ni or a layer of Cu and a layer of Ni, to yield an anode with an increased overpotential of Li metal nucleation at the coated surface and thereby inhibit Li metal plating during extreme fast charging of a lithium-ion battery fabricated with the anode.
A lithium-ion battery cell including an anode configured for fast charging the lithium-ion battery, comprising:
- an anode substrate;
- a nanocoating on a surface of the anode substrate selected from the group consisting of:
- a Cu nanolayer, a Ni nanolayer, and a composite nanolayer of Cu and Ni;
- wherein the coating increases an overpotential of Li metal nucleation at the coated surface of the anode substrate to inhibit Li metal plating during extreme fast charging of the lithium-ion battery cell.
An anode configured for fast charging a lithium-ion battery comprises an anode substrate and a coating on a surface of the anode substrate to increase an overpotential of Li metal to inhibit Li metal plating during extreme fast charging a battery fabricated with the lithium-ion battery, wherein the anode is fabricated by a process comprising:
- applying a nanocoating to the anode substrate surface selected from the group consisting of:
- a Cu nanolayer, a f Ni nanolayer and a composite nanolayer of Cu and Ni.
Dependencies are inferred from the claim text.