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Solid-state metal hydride batteries using ZrO2·nH2O as an electrolyte

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Abstract

ZrO2·1.5H2O or ZrO2·1.5H2O-KOH composite was used as an electrolyte in order to develop a solid-state nickel-metal hydride battery. The battery using the ZrO2·1.5H2O-KOH composite had rechargeability, but had a very low discharge efficiency, even at low current density. However, the performance of the battery was prominently improved by enlarging the electrode-electrolyte interface area. The resultant battery exhibited the remarkably longer cycle life, the higher discharge efficiency, and the lower polarization: it was able to operate over 150 cycles at 10 mA/g alloy.

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Authors and Affiliations

  1. Department of Materials Science, Faculty of Engineering, Tottori University, Minami 4-101, Koyamacho, Tottori, 680-0945, Japan

    Hiroki Sakaguchi, Keisuke Hatakeyama, Mikio Fujii & Takao Esaka

  2. Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, I-I, Gakuencho, Sakai, Osaka, 599-8531, Japan

    Hiroshi Inoue & Chiaki Iwakura

Authors
  1. Hiroki Sakaguchi
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  2. Keisuke Hatakeyama
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  3. Mikio Fujii
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  4. Hiroshi Inoue
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  5. Chiaki Iwakura
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  6. Takao Esaka
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Corresponding author

Correspondence to Takao Esaka.

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Sakaguchi, H., Hatakeyama, K., Fujii, M. et al. Solid-state metal hydride batteries using ZrO2·nH2O as an electrolyte. Res Chem Intermed 32, 473–481 (2006). https://doi.org/10.1163/156856706777973655

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  • DOI: https://doi.org/10.1163/156856706777973655

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