US Patent 7405021 Water-retaining anode structure for a fuel cell

Patent 7405021 was granted and assigned to Johnson Matthey on July, 2008 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Johnson Matthey

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7405021

Date of Patent

July 29, 2008

Patent Application Number

10332438

Date Filed

June 20, 2001

Patent Primary Examiner

‌

Susy Tsang-Foster

Patent abstract

A novel anode structure for making a proton exchange membrane fuel cell (PEMFC) tolerant to incidences of cell reversal includes an electrocatalyst layer having at least one electrocatalyst and at least one proton conducting polymer. The anode structure also includes one or more water retaining material(s), such as carbon nanofibers, embedded within the electrocatalyst layer.