Volume 217, Issue 12 2000005
Original Paper

Functionalized Naphthalene Diimides as Low-Cost Organic Cathodes for Potassium Batteries

Anastasiia D. Blokhina

Anastasiia D. Blokhina

Center for Energy Science and Technology, Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, bld. 1, Moscow, 121205 Russia

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Alexey V. Kozlov

Alexey V. Kozlov

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

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Irina V. Klimovich

Irina V. Klimovich

Center for Energy Science and Technology, Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, bld. 1, Moscow, 121205 Russia

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, Bolshoy Boulevard 30, bld. 1, Moscow, 121205 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: 4

Abstract

Herein, the synthesis and investigation of two naphthalene diimide derivatives with the ethylenesulfonic (NDI1) and methylenecarboxylic (NDI2) groups appended to diimide nitrogen atoms in the form of potassium salts are reported. Synthesized compounds are characterized by 1H NMR, 13C NMR, and elemental analysis. Electrochemical performance of the diimides is evaluated in half-cells with potassium anodes. Both materials show a decent specific capacity of 86–96 mAh g−1 at the first cycle at C/10 current rate in combination with average cell discharge potentials approaching 2.2 V. The obtained results suggest that synthesized materials can be considered as cheap electrode materials for potassium batteries designed for stationary energy storage applications.

Conflict of Interest

The authors declare no conflict of interest.

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