Laminated exfoliated graphite composite-metal compositions for fuel cell flow field plate or bipolar plate applications

Zhamu, Aruna; Shi, Jinjun; Guo, Jiusheng; Jang, Bor Z

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Title: Laminated exfoliated graphite composite-metal compositions for fuel cell flow field plate or bipolar plate applications

Abstract

An electrically conductive laminate composition for fuel cell flow field plate or bipolar plate applications. The laminate composition comprises at least a thin metal sheet having two opposed exterior surfaces and a first exfoliated graphite composite sheet bonded to the first of the two exterior surfaces of the metal sheet wherein the exfoliated graphite composite sheet comprises: (a) expanded or exfoliated graphite and (b) a binder or matrix material to bond the expanded graphite for forming a cohered sheet, wherein the binder or matrix material is between 3% and 60% by weight based on the total weight of the first exfoliated graphite composite sheet. Preferably, the first exfoliated graphite composite sheet further comprises particles of non-expandable graphite or carbon in the amount of between 3% and 60% by weight based on the total weight of the non-expandable particles and the expanded graphite. Further preferably, the laminate comprises a second exfoliated graphite composite sheet bonded to the second surface of the metal sheet to form a three-layer laminate. Surface flow channels and other desired geometric features can be built onto the exterior surfaces of the laminate to form a flow field plate or bipolar plate. The resulting laminate has an exceptionallymore » « less

Inventors:: Zhamu, Aruna; Shi, Jinjun; Guo, Jiusheng; Jang, Bor Z

Issue Date:: 2014-05-20

Research Org.:: Nanotek Instruments, Inc., Dayton, OH (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1132265

Patent Number(s):: 8728679

Application Number:: 11/807,379

Assignee:: Nanotek Instruments, Inc. (Dayton, OH)

Patent Classifications (CPCs):: H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

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H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
H01M8/0206 - Metals or alloys
H01M8/0213 - Gas-impermeable carbon-containing materials
H01M8/0226 - in the form of mixtures
H01M8/0228 - in the form of layered or coated products

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y02E60/50 - Fuel cells

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/24942 - including components having same physical characteristic in differing degree

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Resource Type:: Patent

Resource Relation:: Patent File Date: 2007 May 29

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Zhamu, Aruna, Shi, Jinjun, Guo, Jiusheng, and Jang, Bor Z. Laminated exfoliated graphite composite-metal compositions for fuel cell flow field plate or bipolar plate applications.  United States: N. p., 2014. 
        Web.

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                    Zhamu, Aruna, Shi, Jinjun, Guo, Jiusheng, & Jang, Bor Z. Laminated exfoliated graphite composite-metal compositions for fuel cell flow field plate or bipolar plate applications.  United States.

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                    Zhamu, Aruna, Shi, Jinjun, Guo, Jiusheng, and Jang, Bor Z. Tue .  
        "Laminated exfoliated graphite composite-metal compositions for fuel cell flow field plate or bipolar plate applications".  United States.  https://www.osti.gov/servlets/purl/1132265.

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@article{osti_1132265,

  title        = {Laminated exfoliated graphite composite-metal compositions for fuel cell flow field plate or bipolar plate applications},

  author       = {Zhamu, Aruna and Shi, Jinjun and Guo, Jiusheng and Jang, Bor Z},

  abstractNote = {An electrically conductive laminate composition for fuel cell flow field plate or bipolar plate applications. The laminate composition comprises at least a thin metal sheet having two opposed exterior surfaces and a first exfoliated graphite composite sheet bonded to the first of the two exterior surfaces of the metal sheet wherein the exfoliated graphite composite sheet comprises: (a) expanded or exfoliated graphite and (b) a binder or matrix material to bond the expanded graphite for forming a cohered sheet, wherein the binder or matrix material is between 3% and 60% by weight based on the total weight of the first exfoliated graphite composite sheet. Preferably, the first exfoliated graphite composite sheet further comprises particles of non-expandable graphite or carbon in the amount of between 3% and 60% by weight based on the total weight of the non-expandable particles and the expanded graphite. Further preferably, the laminate comprises a second exfoliated graphite composite sheet bonded to the second surface of the metal sheet to form a three-layer laminate. Surface flow channels and other desired geometric features can be built onto the exterior surfaces of the laminate to form a flow field plate or bipolar plate. The resulting laminate has an exceptionally high thickness-direction conductivity and excellent resistance to gas permeation.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2014},

  month        = {5}

}

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Composite bipolar plate for electrochemical cells
patent, June 2001

Wilson, Mahlon S.; Busick, Deanna N.
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Flexible graphite article and method of manufacture
patent, August 2002

Mercuri, Robert Angelo; Capp, Joseph Paul; Warddrip, Michael Lee
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Flexible graphite article and method of manufacture
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Mercuri, Robert Angelo; Capp, Joseph Paul; Warddrip, Michael Lee
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Similar Records

Title: Laminated exfoliated graphite composite-metal compositions for fuel cell flow field plate or bipolar plate applications

Abstract

Citation Formats

Vermicular expanded graphite composite material patent, May 1981

Housing for electrical or electronic equipment patent, July 1985

Low-density graphite-polymer electrical conductors patent, November 1987

Reinforced flexible graphite sheet patent, March 1988

Composites of in-situ exfoliated graphite patent, August 1990

Laminated fluid flow field assembly for electrochemical fuel cells patent, April 1994

Method of fabricating an embossed fluid flow field plate patent, June 1996

Flexible graphite composite patent, March 1999

Bipolar plate/diffuser for a proton exchange membrane fuel cell patent, March 2000

Flexible graphite composite for use in the form of a fuel cell flow field plate patent, March 2000

Bipolar plate/diffuser for a proton exchange membrane fuel cell patent, January 2001

Composite bipolar plate for electrochemical cells patent, June 2001

Flexible graphite article and method of manufacture patent, August 2002

Flexible graphite article and method of manufacture patent, March 2004

Impregnated bodies made of expanded graphite, process for producing such bodies and sealing elements, fuel cell components and heat-conducting elements formed of the bodies patent, June 2004

Separator for fuel cell, process for production thereof, and solid polymer type fuel cell using said separator patent, April 2005

Fuel cell separator, process for production thereof, and polymer electrolyte fuel cell patent, September 2005

Methacrylate impregnated carbonaceous parts patent-application, November 2001

Method for preparing composite flexible graphite material patent-application, December 2002

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Conductive resin molding patent-application, June 2005

Method for producing composite objects using expanded graphite and vermiculite patent-application, January 2007

Development of bipolar plates for fuel cells from graphite filled wet-lay material and a thermoplastic laminate skin layer journal, March 2007

Vermicular expanded graphite composite material
patent, May 1981

Housing for electrical or electronic equipment
patent, July 1985

Low-density graphite-polymer electrical conductors
patent, November 1987

Reinforced flexible graphite sheet
patent, March 1988

Composites of in-situ exfoliated graphite
patent, August 1990

Laminated fluid flow field assembly for electrochemical fuel cells
patent, April 1994

Method of fabricating an embossed fluid flow field plate
patent, June 1996

Flexible graphite composite
patent, March 1999

Bipolar plate/diffuser for a proton exchange membrane fuel cell
patent, March 2000

Flexible graphite composite for use in the form of a fuel cell flow field plate
patent, March 2000

Bipolar plate/diffuser for a proton exchange membrane fuel cell
patent, January 2001

Composite bipolar plate for electrochemical cells
patent, June 2001

Flexible graphite article and method of manufacture
patent, August 2002

Flexible graphite article and method of manufacture
patent, March 2004

Impregnated bodies made of expanded graphite, process for producing such bodies and sealing elements, fuel cell components and heat-conducting elements formed of the bodies
patent, June 2004

Separator for fuel cell, process for production thereof, and solid polymer type fuel cell using said separator
patent, April 2005

Fuel cell separator, process for production thereof, and polymer electrolyte fuel cell
patent, September 2005

Methacrylate impregnated carbonaceous parts
patent-application, November 2001

Method for preparing composite flexible graphite material
patent-application, December 2002

Conductive composite material and fuel cell electrode using same
patent-application, February 2004

Highly conductive thermoplastic composites for rapid production of fuel cell bipolar plates
patent-application, November 2004

Conductive resin molding
patent-application, June 2005

Method for producing composite objects using expanded graphite and vermiculite
patent-application, January 2007

Development of bipolar plates for fuel cells from graphite filled wet-lay material and a thermoplastic laminate skin layer
journal, March 2007