R. R. Kapaev, E. V. Shklyaeva, G. G. Abashev, K. J. Stevenson, P. A. Troshin, “Nickel tetrathiooxalate as a cathode material for potassium batteries”, Mendeleev Commun., 2022, Volume 32, Issue 2,Pages <nobr>226

This article is cited in 2 papers

Communications

Nickel tetrathiooxalate as a cathode material for potassium batteries

R. R. Kapaev^a, E. V. Shklyaeva^b, G. G. Abashev^bc, K. J. Stevenson^a, P. A. Troshin^de

^a Skolkovo Institute of Science and Technology, Moscow, Russian Federation
^b Perm State National Research University, Perm, Russian Federation
^c Institute of Technical Chemistry, Ural Branch of the Russian Academy of Sciences, Perm, Russian Federation
^d Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow Region, Russian Federation
^e Silesian University of Technology, Faculty of Chemistry, Gliwice, Poland

Abstract: We report a nickel tetrathiooxalate (NiTTO) coordination polymer as a cathode material for potassium batteries. In a potential range of 1.3–3.6 V vs. K⁺/K, the specific capacity of the material is 209 mA h g⁻¹ at a current density of 0.1 A g⁻¹, which roughly corresponds to the two-electron reduction of polymer repeating units. The charge–discharge mechanisms of NiTTO in potassium cells were examined using operando Raman spectroscopy.

Keywords: energy storage, K-ion batteries, cathode materials, conductive polymers, coordination polymers.

Language: English

DOI: 10.1016/j.mencom.2022.03.024

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