Invention Grant
- Patent Title: Method of producing graphene-carbon hybrid foam-protected anode active material coating for lithium-ion batteries
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Application No.: US16252817Application Date: 2019-01-21
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Publication No.: US12244014B2Publication Date: 2025-03-04
- Inventor: Bor Z. Jang
- Applicant: Nanotek Instruments, Inc.
- Applicant Address: US OH Dayton
- Assignee: Nanotek Instruments, Inc.
- Current Assignee: Nanotek Instruments, Inc.
- Current Assignee Address: US OH Dayton
- Main IPC: H01M4/00
- IPC: H01M4/00 ; H01M4/587 ; H01M10/0525 ; H01M4/02

Abstract:
Provided is method of producing a porous anode material structure for a lithium-ion battery, the method comprising (A) providing an integral 3D graphene-carbon hybrid foam comprising multiple pores, having a pore volume Vp, and pore walls; and (B) impregnating or infiltrating the pores with a fluid for forming a coating of an anode active material, having a coating volume Vc, deposited on or bonded to surfaces of the pore walls; wherein the pore walls contain single-layer or few-layer graphene sheets chemically bonded by a carbon material having a carbon material-to-graphene weight ratio from 1/200 to 1/2, and wherein the volume ratio Vp/Vc is from 0.1/1.0 to 10/1.0.
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