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Issue 14, 2019
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Highly crystalline ramsdellite as a cathode material for near-neutral aqueous MnO2/Zn batteries

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Abstract

Chemically-prepared MnO2 containing a highly crystalline ramsdellite phase was tested as a cathode material in aqueous Zn-salt (ZnSO4 and Zn(CF3SO3)2) based electrolytes for the first time. This aqueous MnO2/Zn cell has shown excellent performance and reversibility, retaining ≈65% of its initial capacity for more than 1000 cycles. The charge storage mechanism is complex and includes a ramsdellite/tetragonal spinel two-phase reaction.

Graphical abstract: Highly crystalline ramsdellite as a cathode material for near-neutral aqueous MnO2/Zn batteries

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Article information


Submitted
29 Sep 2018
Accepted
13 Jan 2019
First published
17 Jan 2019

Chem. Commun., 2019,55, 2082-2085
Article type
Communication

Highly crystalline ramsdellite as a cathode material for near-neutral aqueous MnO2/Zn batteries

I. Stoševski, A. Bonakdarpour, F. Cuadra and D. P. Wilkinson, Chem. Commun., 2019, 55, 2082
DOI: 10.1039/C8CC07805J

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