POWER SUPPLY DEVICE AND OPERATION METHOD THEREFOR

Title:

POWER SUPPLY DEVICE AND OPERATION METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2003/021703

Kind Code:

A1

Abstract:

A power supply device capable of providing a high output with a good starting performance from a very low humidity environment. A humidifying type fuel cell unit using as an electrolyte a humidifying type proton conductor having a proton conduction function in a humidified condition, and a low−humidifying type fuel cell unit using as an electrolyte a low−humidifying type proton conductor delivering a proton conduction function in a humidified condition lower than the above humidified condition are hybridized. At an initial start, at least the low−humidifying type fuel cell unit is operated, and then the humidifying type fuel cell unit only is operated. At an initial start, water content produced by the low−humidifying type fuel cell unit is supplied to the electrolyte of the humidifying type fuel cell unit.

Inventors:

TANAKA KOICHI (JP)

Application Number:

PCT/JP2002/008084

Publication Date:

March 13, 2003

Filing Date:

August 07, 2002

Export Citation:

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Assignee:

SONY CORP (JP)
TANAKA KOICHI (JP)

International Classes:

H01M8/02; H01M8/04; H01M8/06; H01M8/10; H01M8/24; (IPC1-7): H01M8/04; H01M8/02; H01M8/00

Domestic Patent References:

WO2001006519A1

2001-01-25

Foreign References:

JPH06274233A	1994-09-30
JPH11339820A	1999-12-10
EP0702376A1	1996-03-20
EP0731519A2	1996-09-11
JPH1069817A	1998-03-10
JPH11203936A	1999-07-30
JP2000357524A	2000-12-26
JPH09251857A	1997-09-22

Other References: