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Hydrogel Electrolyte

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  • First Online:
Encyclopedia of Applied Electrochemistry

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Introduction

Rechargeable alkaline batteries such as nickel-cadmium battery and nickel-metal hydride (Ni-MH) battery include concentrated alkaline aqueous solutions as an electrolyte. The electromotive force of the Ni-MH battery is ca. 1.2 V which is a third of that of lithium ion batteries (LIBs) using nonaqueous electrolyte solutions because the former is restricted by the decomposition voltage of water. On the other hand, electrical conductivity of aqueous electrolyte solutions is more than two digits higher than that of nonaqueous solutions, which enable the rechargeable alkaline batteries to charge and discharge with high current density. Moreover, they are superior in safety to the LIBs. The rechargeable alkaline batteries have been applied to mobile electronic devices, electric power tools, hybrid electric vehicles, etc.

Due to no leakage and no freezing of electrolyte solutions and thinness and compactness of batteries, all-solid-state batteries with proton- or...

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Author information

Authors and Affiliations

  1. Osaka Prefecture University, Gakuencho 1-1, Naka-ku, Sakai, Osaka, Japan

    Hiroshi Inoue

Authors
  1. Hiroshi Inoue
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Correspondence to Hiroshi Inoue .

Editor information

Editors and Affiliations

  1. Eppstein, Germany

    Gerhard Kreysa

  2. Yokohama National University, Fac. Engineering, Yokohama, Japan

    Ken-ichiro Ota

  3. Case Western Reserve University, Cleveland, OH, USA

    Robert F. Savinell

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Inoue, H. (2014). Hydrogel Electrolyte. In: Kreysa, G., Ota, Ki., Savinell, R.F. (eds) Encyclopedia of Applied Electrochemistry. Springer, New York, NY. https://doi.org/10.1007/978-1-4419-6996-5_515

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