Graphene nanocomposites for electrochemical cell electrodes
Abstract
A composite composition for electrochemical cell electrode applications, the composition comprising multiple solid particles, wherein (a) a solid particle is composed of graphene platelets dispersed in or bonded by a first matrix or binder material, wherein the graphene platelets are not obtained from graphitization of the first binder or matrix material; (b) the graphene platelets have a length or width in the range of 10 nm to 10 .mu.m; (c) the multiple solid particles are bonded by a second binder material; and (d) the first or second binder material is selected from a polymer, polymeric carbon, amorphous carbon, metal, glass, ceramic, oxide, organic material, or a combination thereof. For a lithium ion battery anode application, the first binder or matrix material is preferably amorphous carbon or polymeric carbon. Such a composite composition provides a high anode capacity and good cycling response. For a supercapacitor electrode application, the solid particles preferably have meso-scale pores therein to accommodate electrolyte.
- Inventors:
- Issue Date:
- Research Org.:
- Nanotek Instruments, Inc, Dayton, OH (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1226231
- Patent Number(s):
- 9190667
- Application Number:
- 12/220,651
- Assignee:
- Nanotek Instruments, Inc.
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01G - CAPACITORS
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2008 Jul 28
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 30 DIRECT ENERGY CONVERSION
Citation Formats
Zhamu, Aruna, Jang, Bor Z., and Shi, Jinjun. Graphene nanocomposites for electrochemical cell electrodes. United States: N. p., 2015.
Web.
Zhamu, Aruna, Jang, Bor Z., & Shi, Jinjun. Graphene nanocomposites for electrochemical cell electrodes. United States.
Zhamu, Aruna, Jang, Bor Z., and Shi, Jinjun. Thu .
"Graphene nanocomposites for electrochemical cell electrodes". United States. https://www.osti.gov/servlets/purl/1226231.
@article{osti_1226231,
title = {Graphene nanocomposites for electrochemical cell electrodes},
author = {Zhamu, Aruna and Jang, Bor Z. and Shi, Jinjun},
abstractNote = {A composite composition for electrochemical cell electrode applications, the composition comprising multiple solid particles, wherein (a) a solid particle is composed of graphene platelets dispersed in or bonded by a first matrix or binder material, wherein the graphene platelets are not obtained from graphitization of the first binder or matrix material; (b) the graphene platelets have a length or width in the range of 10 nm to 10 .mu.m; (c) the multiple solid particles are bonded by a second binder material; and (d) the first or second binder material is selected from a polymer, polymeric carbon, amorphous carbon, metal, glass, ceramic, oxide, organic material, or a combination thereof. For a lithium ion battery anode application, the first binder or matrix material is preferably amorphous carbon or polymeric carbon. Such a composite composition provides a high anode capacity and good cycling response. For a supercapacitor electrode application, the solid particles preferably have meso-scale pores therein to accommodate electrolyte.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {11}
}
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Works referencing / citing this record:
Graphene nanocomposites for electrochemical cell electrodes
patent, November 2015
- Zhamu, Aruna; Jang, Bor Z.; Shi, Jinjun
- US Patent Document 9,190,667