The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 12, 2011

Filed:

Sep. 30, 2004
Applicants:

Emory S. DE Castro, Nahant, MA (US);

Yu-min Tsou, Princeton, NJ (US);

Maria Josefina Cayetano, Tinton Falls, NJ (US);

Jeffrey G. Morse, Lee, MA (US);

Michael Schneider, Piscataway, NJ (US);

Hua Deng, Warrington, PA (US);

Inventors:

Emory S. De Castro, Nahant, MA (US);

Yu-Min Tsou, Princeton, NJ (US);

Maria Josefina Cayetano, Tinton Falls, NJ (US);

Jeffrey G. Morse, Lee, MA (US);

Michael Schneider, Piscataway, NJ (US);

Hua Deng, Warrington, PA (US);

Assignee:

BASF Fuel Cell GmbH, Frankfurt am Main, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

An improved structure for gas diffusion electrodes and gas diffusion layers whereby fine gradients of porosity and hydrophobicity promote efficient gas transport, water removal and overall enhanced performance of Membrane Electrode Assemblies constructed with these components.


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