Fuel cell system and activation method for fuel cell

Details Fuel cell system and activation method for fuel cell Fuel cell system and activation method for fuel cell

2011-07-05

2011-07-05

Yuan, Dah-Wei D (Department: 1727)

Chemistry: electrical current producing apparatus, product, and

Fuel cell, subcombination thereof, or method of making or...

Process or means for control of operation

C429S413000, C429S428000, C429S429000, C429S430000, C429S432000, C429S450000

Reexamination Certificate

active

07972735

ABSTRACT:
A fuel cell system capable of performing activation for stabilizing electrical characteristics of a fuel cell with suppressing generation of polarity inversion associated with drying of a polymer electrolyte membrane and excess power consumption. An activation method for a fuel cell, the fuel cell system including a fuel cell having a fuel electrode and an oxidizer electrode that are provided on both sides of a polymer electrolyte membrane; a resistance detector for detecting an internal resistance of the fuel cell; a load connection portion having a mechanism for connecting a resistor between the fuel electrode and the oxidizer electrode; and a control unit for controlling the load connection portion. The control unit controls the operation of the load connection portion based on a value of the inner resistance of the fuel cell, which is detected by the resistance detector.

REFERENCES:
patent: 6524733 (2003-02-01), Nonobe
patent: 2004/0175602 (2004-09-01), Tahara
patent: 2008/0220302 (2008-09-01), Yamamoto et al.
patent: 2000-277136 (2000-10-01), None
patent: 2004-47427 (2004-02-01), None
patent: 2005-93282 (2005-04-01), None

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