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Opportunités pour l'amélioration des caractéristiques éléctrochimiques des piles Ni-Zn grâce à la céramique supraconductrice à haute température.

Opportunities for improving the electrochemical characteristics of Ni-Zn batteries using high temperature superconducting ceramic.

Numéro : pap. n. 093

Auteurs : IVANOVA G., STOYANOVA-IVANOVA A., TERZIEVA S., et al.

Résumé

Conductive ceramics powders can be used as an additive to form a „highly conductive” network between particles, which help to improve the electrical contact between “charge carrying” electrochemical active materials in the system. Superconducting ceramics are used as additives in order to insure greater longevity of Ni-Zn batteries and to provide an alternative replacement to the widely used Ni-Cd batteries. Such a ceramic powder with the nominal chemical composition of Y0.95Pr0.05Ba2Cu3O6.96 (YPrBCO) was used as a conductivity additive to the active mass of the Zn electrode. For electrochemical studies electrochemical cells with demountable “button” were developed to simulate real metal body constructions. So, the cell with Y0.95Pr0.05Ba2Cu3O6.96 superconducting ceramic in the zinc electrode exhibits generally good cyclic operation ability and performance stability. The specific capacity of 150 mAh/g (active mass) opens a real chance to use this material in Ni/Zn system.

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Pages : 346-350

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Détails

  • Titre original : Opportunities for improving the electrochemical characteristics of Ni-Zn batteries using high temperature superconducting ceramic.
  • Identifiant de la fiche : 30006953
  • Langues : Anglais
  • Source : Cryogenics 2012. Proceedings of the 12th IIR International Conference: Dresden, Germany, September 11-14, 2012.
  • Date d'édition : 11/09/2012

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