Hydride-ion conduction makes its first appearance

Japanese scientists demonstrate the first electrochemical reaction based on hydride ions in an oxide-based solid-state cell for potential next-generation batteries.
Ionic transport has been studied extensively over the years for energy devices such as fuel cells and batteries using Li+, H+, Ag+, Cu+, F-, and O2-. Yet as Genki Kobayashi and Ryoji Kanno point out in a recent report, hydride ions (H-) may be particularly useful for high-energy-density storage and conversion devices. Using an oxyhydride solid state cell they have now demonstrated pure H- conduction in an oxide for the first time. …

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