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Rejuvenation of automotive fuel cells

Patent ·
OSTI ID:1303253
A process for rejuvenating fuel cells has been demonstrated to improve the performance of polymer exchange membrane fuel cells with platinum/ionomer electrodes. The process involves dehydrating a fuel cell and exposing at least the cathode of the fuel cell to dry gas (nitrogen, for example) at a temperature higher than the operating temperature of the fuel cell. The process may be used to prolong the operating lifetime of an automotive fuel cell.
Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-06NA25396
Assignee:
LOS ALAMOS NATIONAL SECURITY, LLC (Los Alamos, NM)
Patent Number(s):
9,425,461
Application Number:
14/255,847
OSTI ID:
1303253
Country of Publication:
United States
Language:
English

References (4)

Structure and transport properties of solution-cast NafionĀ® membranes subjected to hygrothermal aging journal May 2013
Highly durable fuel cell electrodes based on ionomers dispersed in glycerol journal January 2014
Effects of hydrothermal/thermal treatments on the water-uptake of Nafion membranes and relations with changes of conformation, counter-elastic force and tensile modulus of the matrix journal April 2008
Increased Water Retention in Polymer Electrolyte Membranes at Elevated Temperatures Assisted by Capillary Condensation journal November 2007

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