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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):
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}
}

Works referenced in this record:

Preparation of Graphitic Acid
patent, July 1957


Carbon anode for secondary battery
patent, September 1994


Graphitic nanofibers in electrochemical capacitors
patent, February 2000


Lithium-ion rechargeable battery with carbon-based anode
patent, July 2000


Double-layer capacitor components and method for preparing them
patent, June 2004


Method of making composite electrode and current collectors
patent, December 2004


Nano-scaled graphene plates
patent, July 2006


High-Capacity Carbons Prepared from Phenolic Resin for Anodes of Lithium-Ion Batteries
journal, January 1995


Dramatic Effect of Oxidation on Lithium Insertion in Carbons Made from Epoxy Resins
journal, January 1995


Effect of Mechanical Grinding on the Lithium Intercalation Process in Graphites and Soft Carbons
journal, January 1996


Improved Graphite Anode for Lithium-Ion Batteries Chemically
journal, January 1996


Ab Initio Molecular Dynamics Investigation of Singlet C2H2Li2: Determination of the Ground State Structure and Observation of LiH Intermediates
journal, January 1995


High reversible capacity carbon-lithium negative electrode in polymer electrolyte
journal, April 1995


Chemical Oxidation: A Route to Enhanced Capacity in Li-Ion Graphite Anodes
journal, January 1997


Characterization of lithiated natural graphite before and after mild oxidation
journal, December 1998


Modified carbons for improved anodes in lithium ion cells
journal, July 2001


A key technology to improve the cyclic performances of carbonaceous materials for lithium secondary battery anodes
journal, September 1997


Effects of catalytic oxidation on the electrochemical performance of common natural graphite as an anode material for lithium ion batteries
journal, April 2000


A green method for the preparation of anode materials for lithium ion batteries
journal, January 2001


Anode materials for lithium ion batteries from mild oxidation of natural graphite
journal, January 2002


Mild preparation of anode materials by a salt-free green method
journal, June 2002


Carbon anode materials for lithium ion batteries
journal, March 2003


    Works referencing / citing this record:

    Graphene nanocomposites for electrochemical cell electrodes
    patent, November 2015