Volume 217, Issue 12 1901050
Original Paper

Ni-Based Coordination Polymer as a Promising Anode Material for Potassium Batteries

Olga A. Kraevaya

Olga A. Kraevaya

Center for Energy Science and Technology, Skolkovo Institute of Science and Technology, Nobel str. 3, Moscow, 143026 Russia

Department of Kinetics and Catalysis, Institute for Problems of Chemical Physics RAS, Acad. Semenov str. 1, Chernogolovka, 142432 Russia

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Elena V. Shchurik

Elena V. Shchurik

Department of Kinetics and Catalysis, Institute for Problems of Chemical Physics RAS, Acad. Semenov str. 1, Chernogolovka, 142432 Russia

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Pavel A. Troshin

Corresponding Author

Pavel A. Troshin

Center for Energy Science and Technology, Skolkovo Institute of Science and Technology, Nobel str. 3, Moscow, 143026 Russia

Department of Kinetics and Catalysis, Institute for Problems of Chemical Physics RAS, Acad. Semenov str. 1, Chernogolovka, 142432 Russia

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First published: 15 May 2020
Citations: 14

Abstract

Ni-based coordination polymer derived from 3,3′-diaminobenzidine (Ni-DAB) is reported as a stable potassium battery anode working in the safe voltage window of 0.4–2.0 V versus K+/K. At a low current density of 50 mA g−1, specific discharge capacity of 183 mA h g−1 is reached. Capacity of 158 mA h g−1 is obtained at 1 A g−1, whereas capacity decay is only 0.014% per cycle over 600 cycles, which is among the best cycling stability results reported for electrode materials used in potassium batteries.

Conflict of Interest

The authors declare no conflict of interest.

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