Invention Grant
- Patent Title: Catalyst layer for fuel cell
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Application No.: US15806674Application Date: 2017-11-08
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Publication No.: US10553889B2Publication Date: 2020-02-04
- Inventor: Tohru Morita
- Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Applicant Address: JP Toyota-shi, Aichi-ken
- Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee Address: JP Toyota-shi, Aichi-ken
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, LLP
- Priority: JP2016-224289 20161117
- Main IPC: H01M8/1067
- IPC: H01M8/1067 ; H01M4/92 ; H01M4/86 ; H01M8/1044 ; H01M8/1039 ; H01M8/1018

Abstract:
A catalyst layer for a fuel cell includes a catalyst-supporting carbon in which a catalyst is supported on carbon support powder of which particles have pores, a first electrolyte resin having an oxygen permeability of less than 2.2×10−14 mol/(m·s·Pa) under an environment at a temperature of 80° C. and a relative humidity of 30%, and a second electrolyte resin having an oxygen permeability of 2.2×10−14 mol/(m·s·Pa) or more under an environment at a temperature of 80° C. and a relative humidity of 30%. The content of the first electrolyte resin is an amount equal to or larger than a value X [g] obtained in the equation X=S×R/4436 with respect to 1 g of the carbon support. S denotes a surface area [m2] of the carbon support. R denotes a proportion of the area of the outermost surface of the carbon support with respect to the surface area of the carbon support.
Public/Granted literature
- US20180138536A1 CATALYST LAYER FOR FUEL CELL Public/Granted day:2018-05-17
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