Hydrogen storage alloys for use in rechargeable electrochemical

Details Hydrogen storage alloys for use in rechargeable electrochemical Hydrogen storage alloys for use in rechargeable electrochemical

1997-12-04

2000-06-13

Yee, Deborah

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

429223, H01M 1034

Patent

active

060747838

ABSTRACT:
An AB.sub.5 -type hydrogen absorbing alloy composition for use in an electrochemical cell includes between about 0.001 and 0.01 mole percent of zirconium and/or titanium dispersed throughout the alloy. Methods of producing the alloy are also disclosed. The levels of these elements have been selected to maintain low hydrogen equilibrium pressure, high capacity, and acceptable activation characteristics, along with improved storage characteristics and improved cycle life from reduced corrosion.

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