GAS DIFFUSION SUBSTRATE
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United States of America Patent
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app pub date -
Nov 14, 2016
filing date -
Feb 12, 2009
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Abstract
A process for preparing gas diffusion substrate including a non-woven fibre web, thermally conductive materials and a carbonaceous residue, wherein the thermally conductive materials and carbonaceous residue are embedded within the non-woven fibre web and wherein the thermally conductive materials have a maximum dimension of between 1 and 100 μm and the gas diffusion substrate has a porosity of less than 80% is disclosed. The substrate has particular use in phosphoric acid fuel cells.
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