Low-temperature energy storage performance of NiSalen type polymer and it's composite with SWCNT. (1st July 2021)

• Record Type: Journal Article
• Authors: Alekseeva, Elena; Stelmashuk, Tatyana; Ershov, Valentin; Levin, Oleg
• Is Part Of: Electrochimica acta. Volume 383(2021)
• Publication Date: 2021-07-01
• Subjects: Metal-Salen type polymers -- Polymer/carbon material composite -- Cyclic voltammetry -- Electrochemical impedance spectroscopy -- Low temperature electrode material; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2021.138309
• Languages: English
• ISSNs: 0013-4686

Abstract

Highlights: Poly[Ni(CH3 Salen)] and composite poly[Ni(CH3 Salen)]/SWCNT are studied. The material retains 80% of initial capacitance at −40 °C. The areal capacitance of the composite reaches 72 mF cm −2 . Abstract: Batteries and supercapacitors dramatically lose both energy and power at low temperatures. One of the possible routes to achieve reasonable low temperature performance is to use "soft" organic energy storage materials. Herein, composite material based on NiSalen-type polymer and single wall carbon nanotubes poly[Ni(CH3 Salen)]/SWCNT was studied as the cathode material for low temperature batteries and supercapacitors with acetonitrile-based electrolyte. It was demonstrated that the composite performance is stable at temperatures below 0 °C, and the cell is retaining 80% of initial capacity at temperatures as low as −40 °C. The areal capacitance of the electrode, made from poly[Ni(CH3 Salen)]/SWCNT composite, reaches 72 mF cm −2 . Graphical abstract: Image, graphical abstract