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Title:
POWER SUPPLY DEVICE
Document Type and Number:
Japanese Patent JP3575151
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To properly seal a fuel cell body during non-use of a power supply, and protect a precious metal catalyst from being poisoned with carbon monoxide contained in residual gases.
SOLUTION: A cutoff film 22 as a sealing means to internally seal a fuel cell body 6 is provided at the fuel gas inlet 2, the oxidant gas inlet 3, the fuel gas outlet 4 and the oxidant gas outlet 5 thereof, and the fuel cell body 6 is internally provided with a carbon monoxide combustion burner 14 as a carbon monoxide removal means. According to this construction, respective inlets and outlets are sealed with the cutoff film 22 during the non-use of a power supply, and carbon monoxide contained in residual gases is removed via the carbon monoxide combustion burner 14. thereby protecting a cell characteristic against deterioration.


Inventors:
Ryuta Kondo
Tomonori Aso
Application Number:
JP34021395A
Publication Date:
October 13, 2004
Filing Date:
December 27, 1995
Export Citation:
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Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H01M8/10; H01M8/04; H01M8/06; (IPC1-7): H01M8/04; H01M8/06; H01M8/10
Domestic Patent References:
JP5190196A
JP4126369A
JP63228572A
Attorney, Agent or Firm:
Fumio Iwahashi
Tomoyasu Sakaguchi
Hiroki Naito