Invention Grant
- Patent Title: Fuel cell using variable porosity gas diffusion material
- Patent Title (中): 燃料电池采用可变气孔扩散材料
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Application No.: US10687943Application Date: 2003-10-17
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Publication No.: US07132192B2Publication Date: 2006-11-07
- Inventor: Sivakumar Muthuswamy , Steven D. Pratt , Ronald J. Kelley , Gene Kim
- Applicant: Sivakumar Muthuswamy , Steven D. Pratt , Ronald J. Kelley , Gene Kim
- Applicant Address: US IL Schaumburg
- Assignee: Motorola, Inc.
- Current Assignee: Motorola, Inc.
- Current Assignee Address: US IL Schaumburg
- Agency: Ingrassia Fisher & Lorenz, P.C.
- Agent Randi L. Karpinia
- Main IPC: H01M4/86
- IPC: H01M4/86 ; H01M8/10

Abstract:
A fuel cell (100) includes a membrane electrode assembly (110) located together with a layer of variable porosity porous gas diffusion material (150). The variable porosity gas diffusion material layer (150) operates to selectively limit the amount of reactants reaching localized areas of the membrane electrode assembly (110) in order to reduce hot spots.
Public/Granted literature
- US20040086776A1 Fuel cell using variable porosity gas diffusion material Public/Granted day:2004-05-06
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