An Aqueous Dual-Ion Battery Cathode of Mn3 O4 via Reversible Insertion of Nitrate

Angewandte Chemie
Heng JiangXiulei Ji

Abstract

We report reversible electrochemical insertion of NO3- into manganese(II, III) oxide (Mn3 O4 ) as a cathode for aqueous dual-ion batteries. Characterization by TGA, FTIR, EDX, XANES, EXAFS, and EQCM collectively provides unequivocal evidence that reversible oxidative NO3- insertion takes place inside Mn3 O4 . Ex situ HRTEM and corresponding EDX mapping results suggest that NO3- insertion de-crystallizes the structure of Mn3 O4 . Kinetic studies reveal fast migration of NO3- in the Mn3 O4 structure. This finding may open a new direction for novel low-cost aqueous dual-ion batteries.

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Citations

Jun 5, 2020·Science Advances·Dongliang ChaoShi-Zhang Qiao
Sep 17, 2020·Science Advances·Dongliang ChaoShi-Zhang Qiao
May 19, 2021·Nature Communications·Xiao TangGuoxiu Wang
May 27, 2021·Nature Communications·Zhaodong HuangChunyi Zhi
Sep 22, 2021·Chemical Communications : Chem Comm·Sean K SandstromXiulei Ji

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