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Title:
FUEL CELL HYDROGEN SUPPLY SYSTEMS USING SECONDARY FUEL TO RELEASE STORED HYDROGEN
Document Type and Number:
WIPO Patent Application WO2002031897
Kind Code:
A3
Abstract:
Hydrogen propelled fuel cell vehicle system designs that reduce the relative cost of releasing hydrogen from hydrogen storage alloys by providing and/or utilizing secondary sources of heat to supply the heat of desorption of stored hydrogen. The secondary source can include combusting conventional secondary (non-hydrogen) fuels. The fuel supply system uses fundamentally new magnesium-based hydrogen storage alloy materials which for the first time make it feasible and practical to use solid state storage and delivery of hydrogen storage capacity of over 7 weight % coupled with extraordinary absorption kinetics such that the alloy powder absorbs 80 % of its total capacity within 1.5 minutes at 300C and a cycle life of at least 2000 cycles (see figure 4) without loss of capacity or kinetics.

Inventors:
OVSHINSKY STANFORD R
YOUNG ROSA
Application Number:
US0131358W
Publication Date:
August 08, 2002
Filing Date:
October 05, 2001
Export Citation:
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Assignee:
ENERGY CONVERSION DEVICES INC (US)
International Classes:
B32B15/01; C01B3/00; C22C1/04; C22C22/00; C22C23/00; C22C23/02; C22C23/06; F02B43/10; F17C11/00; H01M4/38; H01M4/46; H01M8/04; H01M8/06; H01M; (IPC1-7): C22C22/00
Foreign References:
US6193929B12001-02-27
US5634341A1997-06-03
US5964965A1999-10-12
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