Studies on the electrochemical impedance spectroscopy of Zr-based Laves phase metal hydride electrodes

Conference · Mon Dec 01 00:00:00 EST 1997

OSTI ID:549366

Chen, J; Dou, S X; Bradhurst, D; Liu, H K ^[1]

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1. Univ. of Wollongong, New South Wales (Australia). Inst. for Materials Technology and Mfg.

The impedance spectra of Zr(V{sub 0.4}Ni{sub 0.6}){sub 2}, Zr(V{sub 0.2}Mn{sub 0.2}Ni{sub 0.6}){sub 2}, Zr(V{sub 0.2}Mn{sub 0.2}Ni{sub 0.55}Si{sub 0.05}){sub 2} alloys have been investigated. An equivalent circuit for the reaction of an MH electrode is proposed. The results reveal that: (1) the additions of Mn and Si have significant effects on the reaction resistances of the alloys; (2) Ni powder is an appropriate additive material in the manufacturing process of an MH electrode; (3) the amounts of Ni powder in the alloy electrode also should be considered in the practical utilization.

• OSTI ID: 549366
• Report Number(s): CONF-970168-; ISBN 0-7803-3631-3; TRN: IM9751%%49
• Resource Relation: Conference: 12. Annual battery conference on applications and advances, Long Beach, CA (United States), 14-17 Jan 1997; Other Information: PBD: 1997; Related Information: Is Part Of The twelfth annual battery conference on applications and advances: Proceedings; Frank, H.A.; Seo, E.T. [comps.]; PB: 364 p.
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
25 ENERGY STORAGE
08 HYDROGEN FUEL
ZIRCONIUM ALLOYS
NICKEL-HYDROGEN BATTERIES
HYDRIDATION
ELECTRODES
LAVES PHASES
NICKEL ALLOYS
VANADIUM ALLOYS
MANGANESE ALLOYS
SILICON ALLOYS
ELECTRIC IMPEDANCE