Reversibility of metal-hydride anodes in all-solid-state lithium secondary battery operating at room temperature

Reversibility of metal-hydride anodes in all-solid-state lithium secondary battery operating at... The impact on the performance of conversion-type MgH2 anodes by using solid state electrolyte is reported. MgH2 anodes (~26 μm thick) made from homogenous slurries and subsequent drying, are used as model systems along with Li(BH4)0.75I0.25–0.8Li2S·0.2P2S5 as solid electrolyte in an “all-solid-state room-temperature secondary battery”. Electrochemical tests are carried out to investigate cycling properties and elucidate reversibility aspects during the conversion reaction. A major enhancement in performance is observed for the all-solid-state battery compared to MgH2 anodes using carbonate-based liquid electrolytes. This shows that good compatibility and improved reversibility can be obtained for hydride anodes when associated with borohydride-based electrolyte in a Li-ion cell operating at room temperature. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Solid State Ionics Elsevier

Reversibility of metal-hydride anodes in all-solid-state lithium secondary battery operating at room temperature

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Publisher
Elsevier
Copyright
Copyright © 2018 Elsevier B.V.
ISSN
0167-2738
eISSN
1872-7689
D.O.I.
10.1016/j.ssi.2018.01.037
Publisher site
See Article on Publisher Site

Abstract

The impact on the performance of conversion-type MgH2 anodes by using solid state electrolyte is reported. MgH2 anodes (~26 μm thick) made from homogenous slurries and subsequent drying, are used as model systems along with Li(BH4)0.75I0.25–0.8Li2S·0.2P2S5 as solid electrolyte in an “all-solid-state room-temperature secondary battery”. Electrochemical tests are carried out to investigate cycling properties and elucidate reversibility aspects during the conversion reaction. A major enhancement in performance is observed for the all-solid-state battery compared to MgH2 anodes using carbonate-based liquid electrolytes. This shows that good compatibility and improved reversibility can be obtained for hydride anodes when associated with borohydride-based electrolyte in a Li-ion cell operating at room temperature.

Journal

Solid State IonicsElsevier

Published: Apr 1, 2018

References

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