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A high-capacity and long-life aqueous rechargeable zinc battery using porous metal–organic coordination polymers nanosheets cathode

Abstract

Aqueous zinc ion batteries (AZIBs) have received incremental attention because of their low cost, environmental benefits and materials abundance. However, the intercalation of zinc ions in the cathode materials is challenging and complex. To tackle the above-mentioned issue, we demonstrate an AZIBs system which consists of porous metal–organic coordination polymers (MOCP) nanosheets cathode, a Zn foil anode, and ZnSO4 / MnSO4 solution electrolyte. The zinc cell delivers a high reversible capacity of 240.3 mAh g−1 at 150 mA g−1 and an excellent capacity retention of approximately 100% over 1500 cycles at 600 mA g−1. The superior electrochemical performance is ascribed to the addition of MnSO4, which results in the formation of MnO2, and the MnO2 can enhance the electrochemical performance of the AZIBs. The synergy effects between MOCP and MnO2 may open new opportunities for the development of low-cost, high performance rechargeable aqueous batteries.

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Publication details

The article was received on 08 Sep 2018, accepted on 09 Oct 2018 and first published on 10 Oct 2018


Article type: Research Article
DOI: 10.1039/C8QI00959G
Citation: Inorg. Chem. Front., 2018, Accepted Manuscript
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    A high-capacity and long-life aqueous rechargeable zinc battery using porous metal–organic coordination polymers nanosheets cathode

    S. Wu, Y. Wang, W. LIU, M. Ren, F. Kong, S. Wang, X. Wang, H. Zhao and J. Bao, Inorg. Chem. Front., 2018, Accepted Manuscript , DOI: 10.1039/C8QI00959G

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