Sulphur/PAN PVP Fibres Based Composite Material as Cathode for Li-S Batteries

Katarína Gavalierová 1 Dominika Capková 1 Andrea Straková Fedorková 1 Renáta Oriňaková 1 Magdaléna Strečková 2 Mária Hečková 2

1Department of Physical Chemistry, Faculty of Science, Pavol Jozef Šafarik University in Košice, Moyzesova 11, 041 01 Košice, Slovakia
2Institute of Material Research, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia

Nowadays, there is a huge demand for energy due to the population growth and technological progress. The researchers pay an intensive attention to the devices able to produce and store energy. Lithium-sulphur batteries represent this kind of device. Li-S batteries play a significant role in a development of rechargeable batteries. They are attractive adept due to their high theoretical capacity of sulphur (1672 mAh/g), abundance and non-toxicity of sulphur and low cost of sulphur. Li-S battery belongs to the conversion type of battery; it means new chemical compounds during electrochemical reactions. However, it is needed to solve some scientific problems, such as nonconductivity of sulphur and its volume increase during charge and discharge process [1, 2]. To solve these problems, composite materials based on sulphur are investigated. This work deals with sulphur/carbon composite as a cathode material for lithium-sulphur batteries. There are more forms of carbon which can be mixed with sulphur to improve the battery performance. Herein we report carbon microfibers prepared by electrospinning added to sulphur/CS2 solution as a composite cathode material.

This publication was supported by the Operational program Integrated Infrastructure within the project: Innovative Solutions for Propulsion, Power and Safety Components of Transport Vehicles, 313011V334, cofinanced by the European Regional Development Fund and by the project VVGS vvgs-pf-2021-1756.
1. Yin Y., Xin S., Guo Y., Wan L.: Angewandte Chemie 52, 13186 (2013).
2. Strakova Fedorkova A., Kazda T.,Gavalierova K., Gomez-Romero P., Shembel E.: Int. J. Electrochem. Sci. 13, 551 (2018).