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Electrochemical Evaluation of LaNi_(5–x)Ge_x Metal Hydride Alloys

Witham, C. and Ratnakumar, B. V. and Bowman, R. C., Jr. and Hightower, A. and Fultz, B. (1996) Electrochemical Evaluation of LaNi_(5–x)Ge_x Metal Hydride Alloys. Journal of the Electrochemical Society, 143 (9). L205-L208. ISSN 0013-4651. doi:10.1149/1.1837088.

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We report a detailed evaluation of Ge-substituted LaNi_5 for electrochemical application as a negative electrode in alkaline rechargeable cells. Alloys with small substitutions of Ge for Ni show operating pressures, chargeability, cyclic lifetime, and kinetics for hydrogen absorption and desorption all superior to those found in many other substituted LaNi_5 alloys. These improved properties were achieved with a minimal reduction in hydrogen storage capacity.

Item Type:Article
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URLURL TypeDescription
Bowman, R. C., Jr.0000-0002-2114-1713
Fultz, B.0000-0002-6364-8782
Additional Information:© 1996 The Electrochemical Society, Inc. Manuscript submitted May 16, 1996; revised manuscript received July 1, 1996. This work was carried out at the Jet Propulsion Laboratory under contract with the National Aeronautics and Space Administration and at the California Institute of Technology under funding by DOE Grant DE-FG03-94ER14493. We thank NASA for providing the facilities for the electrochemical studies and DOE for support for all the authors and the Sievert's apparatus at Caltech.
Funding AgencyGrant Number
Department of Energy (DOE)DE-FG03-94ER14493
Subject Keywords:electrochemical electrodes, lanthanum compounds, nickel compounds, germanium alloys, energy storage, performance evaluation, X-ray diffraction, hydrogenation
Issue or Number:9
Classification Code:PACS: 82.45.Fk; 82.45.Rr; 82.47.Cb; 82.45.Vp
Record Number:CaltechAUTHORS:20120202-133457974
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Official Citation:Electrochemical Evaluation of LaNi[sub 5 - x]Ge[sub x] Metal Hydride Alloys C. Witham, B. V. Ratnakumar, R. C. Bowman, Jr., A. Hightower, and B. Fultz, J. Electrochem. Soc. 143, L205 (1996), DOI:10.1149/1.1837088
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:29097
Deposited By: Tony Diaz
Deposited On:24 Feb 2012 18:33
Last Modified:09 Nov 2021 17:03

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