Materials for use in electrode manufacture
AssigneeJohnson Matthey Public Limited Company
InventorsJan Denton, John M Gascoyne, David Thompsett
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Abstract
An improved ink material, particularly for use in printing processes and its use in improved manufacturing processes for higher performance electrodes for application in fuel cells and other electrochemical devices is disclosed.
Claims17
An ink comprising a mixture of one or more catalyst materials and one or more proton-conducting polymers in a liquid medium, wherein said liquid medium is aqueous-based and essentially free from organic components.
A printing ink comprising one or more catalysts and one or more polymer materials in a liquid medium characterised in that the liquid medium is aqueous-based and comprises less than 10% by weight organic components.
An electrode prepared by printing an ink comprising one or more catalysts and one or more organic polymers which act as structural binders and/or controller of reactant and product flow onto a substrate followed by applying a layer of an aqueous solution of a proton-conducting polymer.
Dependencies are inferred from the claim text.