GAS DIFFUSION SUBSTRATE
A gas diffusion substrate comprising a non-woven network of carbon fibres wherein the carbon fibres are graphitised but the non-woven network has not been subjected to a graphitisation process is disclosed. A mixture of graphitic particles and hydrophobic polymer is disposed within the network. The...
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Main Authors | , , , , |
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Format | Patent |
Language | English French |
Published |
29.12.2005
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Summary: | A gas diffusion substrate comprising a non-woven network of carbon fibres wherein the carbon fibres are graphitised but the non-woven network has not been subjected to a graphitisation process is disclosed. A mixture of graphitic particles and hydrophobic polymer is disposed within the network. The longest dimension of at least 90% of the graphitic particles is less than 100µm. Processes for manufacturing the gas diffusion substrates are also disclosed.
Substrat à diffusion gazeuse comprenant un réseau non tissé et de fibres de carbone graphitisées, le réseau non tissé n'ayant pas été soumis à un procédé de graphitisation. Un mélange de particules graphitiques et d'un polymère hydrophobe est placé dans le réseau. La dimension la plus longue d'au moins 90 % des particules graphitiques est inférieure à 100 mu m. Procédés de fabrication de ces substrats. |
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Bibliography: | Application Number: WO2005GB02371 |