James D Larson

Address:

2085 Cliffview Dr, Saint Paul, MN 55122

VIN:

JHMGD38637S043712

Make:

HONDA

Model:

FIT

Year:

2007

US Patent:

6428584, Aug 6, 2002

Filed:

Nov 13, 2000

Appl. No.:

09/711569

Inventors:

Mark K. Debe - Stillwater MN
James M. Larson - Saint Paul MN
William V. Balsimo - Afton MN
Andrew J. Steinbach - Saint Paul MN
Raymond J. Ziegler - Glenwood City WI

Assignee:

3M Innovative Properties Company - Saint Paul MN

International Classification:

H01M 600

US Classification:

296231, 29746, 204283, 204296, 429 40, 429 41, 429 42, 429 44, 156269, 156281, 156324

Abstract:

Membrane electrode assemblies are described that include an ion conductive membrane a catalyst adjacent to the major surfaces of the ion conductive membrane and a porous particle filled polymer membrane adjacent to the ion conductive membrane. The catalyst can be disposed on the major surfaces of the ion conductive membrane. Preferably, the catalyst is disposed in nanostructures. The polymer film serving as the electrode backing layer preferably is processed by heating the particle loaded porous film to a temperature within about 20 degrees of the melting point of the polymer to decrease the Gurley value and the electrical resistivity. The MEAs can be produced in a continuous roll process. The MEAs can be used to produce fuel cells, electrolyzers and electrochemical reactors.

US Patent:

6432571, Aug 13, 2002

Filed:

Nov 13, 2000

Appl. No.:

09/711238

Inventors:

Mark K. Debe - Stillwater MN
James M. Larson - Saint Paul MN
William V. Balsimo - Afton MN
Andrew J. Steinbach - Saint Paul MN
Raymond J. Ziegler - Glenwood City WI

Assignee:

3M Innovative Properties Company - Saint Paul MN

International Classification:

H01M 486

US Classification:

429 41, 429 42, 429 40, 429 30, 429 32, 429 35, 429 36, 296233, 204283, 204296

Abstract:

Membrane electrode assemblies are described that include an ion conductive membrane a catalyst adjacent to the major surfaces of the ion conductive membrane and a porous particle filled polymer membrane adjacent to the ion conductive membrane. The catalyst can be disposed on the major surfaces of the ion conductive membrane. Preferably, the catalyst is disposed in nanostructures. The polymer film serving as the electrode backing layer preferably is processed by heating the particle loaded porous film to a temperature within about 20 degrees of the melting point of the polymer to decrease the Gurley value and the electrical resistivity. The MEAs can be produced in a continuous roll process. The MEAs can be used to produce fuel cells, electrolyzers and electrochemical reactors.

US Patent:

6465041, Oct 15, 2002

Filed:

Dec 19, 2001

Appl. No.:

10/028586

Inventors:

Joseph William Frisk - Oakdale MN
Wayne Meredith Boand - Lino Lakes MN
James Michael Larson - Saint Paul MN

Assignee:

3M Innovative Properties Company - Saint Paul MN

International Classification:

B05D 128

US Classification:

427228, 427358, 427359, 427365

Abstract:

A method is provided for making a gas diffusion layer for an electrochemical cell comprising the steps of: a) combining carbon particles and one or more surfactants in a typically aqueous vehicle to make a preliminary composition, typically by high shear mixing; b) adding one or more highly fluorinated polymers to said preliminary composition by low shear mixing to make a coating composition; and c) applying the coating composition to an electrically conductive porous substrate, typically by a low shear coating method.

US Patent:

6613106, Sep 2, 2003

Filed:

Nov 13, 2000

Appl. No.:

09/711566

Inventors:

Mark K. Debe - Stillwater MN
James M. Larson - Saint Paul MN
William V. Balsimo - Afton MN
Andrew J. Steinbach - Saint Paul MN
Raymond J. Ziegler - Glenwood City WI

Assignee:

3M Innovative Properties Company - Saint Paul MN

International Classification:

H01M 600

US Classification:

296233, 296234, 296235, 29458, 295271, 295272, 295273, 295275, 295276, 29730, 29731, 29745

Abstract:

Membrane electrode assemblies are described that include an ion conductive membrane a catalyst adjacent to the major surfaces of the ion conductive membrane and a porous particle filled polymer membrane adjacent to the ion conductive membrane. The catalyst can be disposed on the major surfaces of the ion conductive membrane. Preferably, the catalyst is disposed in nanostructures. The polymer film serving as the electrode backing layer preferably is processed by heating the particle loaded porous film to a temperature within about 20 degrees of the melting point of the polymer to decrease the Gurley value and the electrical resistivity. The MEAs can be produced in a continuous roll process. The MEAs can be used to produce fuel cells, electrolyzers and electrochemical reactors.

US Patent:

6703068, Mar 9, 2004

Filed:

Dec 19, 2001

Appl. No.:

10/027608

Inventors:

Klaus Hintzer - Kastl, DE
Armin Steurer - Tittmoning, DE
Dieter Birkhorst - Altötting, DE
James Michael Larson - Saint Paul MN
Joseph William Frisk - Oakdale MN
Wayne Meredith Boand - Lino Lakes MN

Assignee:

3M Innovative Properties Company - Saint Paul MN

International Classification:

B05D 512

US Classification:

427115, 427180, 4273722, 427205

Abstract:

An aqueous coating composition is provided comprising carbon particles, one or more highly fluorinated polymers and one or more amine oxide surfactants, typically an amine oxide surfactant according to formula I: where n is 9 to 19. The coating composition is advantageously used in a method of making a gas diffusion layer for an electrochemical cell comprising the steps of: a) coating a electrically conductive porous substrate with the aqueous coating composition, and b) heating the electrically conductive porous substrate to a temperature sufficient to decompose the amine oxide surfactants. In another aspect, a gas diffusion layer for an electrochemical cell is provided which is advantageously free of surfactant.

US Patent:

7517604, Apr 14, 2009

Filed:

Sep 19, 2005

Appl. No.:

11/230090

Inventors:

Steven J. Hamrock - Stillwater MN, US
James M. Larson - Saint Paul MN, US
Phat T. Pham - Little Canada MN, US
Matthew H. Frey - Cottage Grove MN, US
Gregory M. Haugen - Edina MN, US
William M. Lamanna - Stillwater MN, US

Assignee:

3M Innovative Properties Company - Saint Paul MN

International Classification:

H01M 8/10

US Classification:

429 33, 429 12, 429 30, 429 42, 429309, 521 27

Abstract:

An electrolyte membrane is formed by an acidic polymer and a low-volatility acid that is fluorinated, substantially free of basic groups, and is either oligomeric or non-polymeric.

US Patent:

7838138, Nov 23, 2010

Filed:

Sep 19, 2005

Appl. No.:

11/230091

Inventors:

James M. Larson - Saint Paul MN, US
Phat T. Pham - Little Canada MN, US
Matthew H. Frey - Cottage Grove MN, US
Steven J. Hamrock - Stillwater MN, US
Gregory M. Haugen - Edina MN, US
William M. Lamanna - Stillwater MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

H01M 8/10

US Classification:

429 33, 429 12, 429 30, 429 42, 429309, 521 27, 204263, 204296

Abstract:

The present invention is an electrolyte membrane comprising an acid and a basic polymer, where the acid is a low-volatile acid that is fluorinated and is either oligomeric or non-polymeric, and where the basic polymer is protonated by the acid and is stable to hydrolysis.

US Patent:

8323809, Dec 4, 2012

Filed:

Sep 15, 2010

Appl. No.:

12/882310

Inventors:

James M. Larson - Saint Paul MN, US
Phat T. Pham - Little Canada MN, US
Matthew H. Frey - Cottage Grove MN, US
Steven J. Hamrock - Stillwater MN, US
Gregory M. Haugen - Edina MN, US
William M. Lamanna - Stillwater MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

H01M 8/10

US Classification:

429 33, 429 12, 429 30, 429 42, 429309, 521 27, 204263, 204296

Abstract:

The present invention is an electrolyte membrane comprising an acid and a basic polymer, where the acid is a low-volatile acid that is fluorinated and is either oligomeric or non-polymeric, and where the basic polymer is protonated by the acid and is stable to hydrolysis.