IP Library › Granted Patent US 12,347,852
Granted Patent B2
US 12,347,852 · App. 18/183,417 · Granted Jul 1, 2025

Zinc alloy electrodes for lithium batteries

Inventors: Jonathan T. Goodman (Evanston, IL); Yong Shi (Oakville, CA)
Assignee: Li-Metal Corp.
H01M4/382H01M4/0404H01M4/0421H01M4/0471H01M4/134H01M4/1395H01M4/661H01M4/662H01M4/667H01M4/668H01M2004/027
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Quick Facts
Patent No.
US 12,347,852
App. No.
18/183,417
Granted
Jul 1, 2025
Kind
B2
Abstract

Zinc containing electrodes and anodes, processes for their production, and cells including said electrodes and anodes are disclosed. The electrodes and anodes can include zinc adjacent to a copper current collector and carrying lithium metal. Processes include the deposition of zinc and then lithium onto the current collector and the electrochemical products include the electrodes and anodes in a lithium-metal cell.

Claims (10)

1. A lithium metal anode comprising:

a copper current collector carrying and metallurgically affixed to a brass interlayer that includes zinc and copper; and

a ternary interlayer disposed between the brass interlayer and a lithium metal layer, wherein the brass interlayer is free of lithium and the ternary interlayer includes lithium, copper, and zinc,

wherein the brass interlayer includes a zinc to copper ratio of about 1:4 to about 4:1;

wherein the brass interlayer includes a diffusion composition of zinc and copper that has a zinc concentration that increases from adjacent to the copper current collector toward the lithium metal layer and a copper concentration that decreases from adjacent to the copper current collector toward the lithium metal layer; and

wherein the ternary interlayer has a thickness of about 10 nm to about 2 μm.

2. The lithium metal anode of claim 1 , wherein the brass interlayer has a thickness of about 10 nm to about 2 μm.

3. The lithium metal anode of claim 1 , wherein the zinc to copper ratio is about 2:3 to about 3:2.

4. The lithium metal anode of claim 3 , wherein the zinc to copper ratio is about 1:1.

5. The lithium metal anode of claim 1 , wherein the lithium metal layer has a thickness of about 2.5 μm to about 100 μm.

Assignments (1)
CHANGE OF NAME Recorded Dec 22, 2025
From: LI-METAL CORP.
To: SKYCAP INVESTMENT HOLDINGS INC.
Reel/Frame 074041/0627 →
Continuity (2)
Provisional Application 63429435 · Dec 1, 2022
Related Publication 20240186496A1 · Jun 6, 2024
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