Invention Grant
- Patent Title: Porous graphene particulate-protected anode active materials for lithium batteries
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Application No.: US16163955Application Date: 2018-10-18
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Publication No.: US12322785B2Publication Date: 2025-06-03
- Inventor: Sheng-Yi Lu , Wen Y. Chiu , 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: H01M4/583
- IPC: H01M4/583 ; H01M4/02 ; H01M4/04 ; H01M4/133 ; H01M4/36 ; H01M4/38 ; H01M4/62 ; H01M10/0525

Abstract:
An anode for a lithium battery, comprising multiple porous graphene particulates, wherein at least one of the particulates comprises multiple pores (total volume Vpp), pore walls, and primary particles of an anode active material (total volume Va), disposed in the pores, wherein (a) the pore walls contain a graphene material; (b) the primary particles are in an amount from 0.5% to 95% by weight based on the total particulate weight; (c) the particulate is embraced or encapsulated by a thin encapsulating layer of electrically conducting material having a thickness from 1 nm to 10 μm, an electric conductivity from 10−6 S/cm to 20,000 S/cm and a lithium ion conductivity from 10−8 S/cm to 5×10−2 S/cm; and (d) the volume ratio Vpp/Va is from 1.3/1.0 to 5.0/1.0.
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