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Studies on the lithium and potassium uptake of nickel hydroxide electrodes

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Abstract

The extent of lithium and potassium uptake by bothα- andβ-Ni(OH)2 electrodes has been studied by atomic absorption/emission spectroscopy. It was found that lithium ions are preferentially taken up into the bulk of the electrodes. The increase in the end-of-charge potential on constant current charging in lithiated electrolyte compared with pure potassium hydroxide is attributed to the bulk incorporation of lithium into the Ni(OH)2 electrodes. X-ray studies have indicated no change in the phases present in the lithiated electrolytes either in the charged or discharged states. Cyclic voltametric measurements to 100 cycles showed no significant benefit due to lithium ions in terms of charge retention.

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Author notes

  1. Anil K. Sood (Senior Scientific Officer-I)

    Present address: Department of Science and Technology, -110016, New Delhi, India

Authors and Affiliations

  1. Electrochemistry Research Laboratories, Department of Physical Chemistry, University of Newcastle upon Tyne, Bedson Building, NE1 7RU, Newcastle upon Tyne, UK

    R. D. Armstrong, Anil K. Sood (Senior Scientific Officer-I) & M. Moore

Authors
  1. R. D. Armstrong
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  2. Anil K. Sood
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  3. M. Moore
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Armstrong, R.D., Sood, A.K. & Moore, M. Studies on the lithium and potassium uptake of nickel hydroxide electrodes. J Appl Electrochem 15, 603–607 (1985). https://doi.org/10.1007/BF01059302

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  • DOI: https://doi.org/10.1007/BF01059302

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