Highly durable electrode catalyst layer
CA 2591870 C · Owner: Asahi Kasei Kabushiki Kaisha · Inventors: Miyake, Naoto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to fuel cells and more particularly to solid polymer fluid cells. The present invention relates to an electrode catalyst layer having good power generation and high durability for solid polymer fluid cells, the electrode catalyst layer comprising a composite particle having an electrode catalyst particle supported on an electrically conductive particle, a perfluorocarbon sulfonic acid resin (component A) and a polyazole-based compound (component B), wherein the content of the composite particle is 20 to 95% by weight, the total weight of component A and component B is 5 to 80% by weight, and the weight ratio (A/B) between component A and component B …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed March 29, 2005 and granted December 2, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 29, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.