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Title: 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):
9,190,667
Application Number:
12/220,651
Assignee:
Nanotek Instruments, Inc.
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.
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Zhamu, Aruna, Jang, Bor Z., & Shi, Jinjun. Graphene nanocomposites for electrochemical cell electrodes. United States.
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Zhamu, Aruna, Jang, Bor Z., and Shi, Jinjun. Thu . "Graphene nanocomposites for electrochemical cell electrodes". United States. https://www.osti.gov/servlets/purl/1226231.
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@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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