Comparative study of electrochemical properties of SnS and SnS2 as anode materials in lithium-ion batteries

Albina Glibo, Nicolas Eshraghi, Yuri Surace, Andreas Mautner, Hans Flandorfer, Damian Marlon Cupid

Research output: Contribution to journalArticlepeer-review

Abstract

Phase pure SnS and SnS2 were synthesized via the precipitation reaction and investigated as active anode materials for lithium-ion batteries. The crystal structure, morphology and chemical composition of the as-synthesized materials were determined by various physio-chemical techniques such as powder X-ray diffraction, scanning electron microscopy, transmission electron microscopy and X-ray photoelectron spectroscopy. The electrochemical properties of the SnS and SnS2 active anode materials were investigated by galvanostatic cycling with potential limitation, cyclic voltammetry, electrochemical impedance spectroscopy and electrochemical in-situ dilatometry. It was shown that the SnS2 electrodes exhibit superior cycling performance properties compared to the SnS electrodes. This is due to the higher amount of Li2S which is produced during the conversion reaction of SnS2 as well as to the intercalation of Li into the SnS2 crystal structure prior to conversion, which allows for a finer distribution of Li2S within the electroactive material.
Original languageEnglish
Article number141725
Number of pages14
JournalElectrochimica Acta
Volume441
DOIs
Publication statusPublished - 10 Feb 2023

Research Field

  • Battery Materials Development and Characterisation

Keywords

  • Li-ion battery
  • anode active material
  • SnS
  • SnS2

Fingerprint

Dive into the research topics of 'Comparative study of electrochemical properties of SnS and SnS2 as anode materials in lithium-ion batteries'. Together they form a unique fingerprint.

Cite this