HYDROGEN STORAGE ALLOYS OF THE AB 5? TYPE FOR USE IN RECHARGEABLE ELECTROCHEMICAL CELLS, AND METHODS OF PRODUCING THEM

HYDROGEN STORAGE ALLOYS OF THE AB 5? TYPE FOR USE IN RECHARGEABLE ELECTROCHEMICAL CELLS, AND METHODS OF PRODUCING THEM

An AB5-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 ma...

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Bibliographische Detailangaben
Hauptverfasser: TRAINER, PHILIP, D, GAYDOS, MARK
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ALLOYS
BASIC ELECTRIC ELEMENTS
CHEMISTRY
ELECTRICITY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:An AB5-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.