The Electrochemical Characterization of Nanostructured Bi2Se3 Thin Films in an Aqueous Na Electrolyte

Raimonds Meija (Coresponding Author), Vitalijs Lazarenko, Anna Skrastina, Yelyzaveta Rublova, Jana Andzane, Vanda Voikiva, Arturs Viksna, Donats Erts

Research output: Contribution to journalArticlepeer-review

Abstract

Due to their layered structure and high theoretical capacity, bismuth chalcogenides have been proposed as anodes in organic electrolyte Li-and Na-ion batteries. On the other hand, their electrochemical properties in aqueous systems have not been reported. Here, the electrochemical performance of Bi2Se3 thin films in 1 M NaNO3 aqueous electrolyte is presented. This aqueous Bi2Se3 system was found to have up to two orders of magnitude increased diffusion coefficients, compared to other anode materials in Na electrolyte-based systems, as well as limited anode electrode degradation over 5 CVs and significant changes in the anode after 30 CVs.

Original languageEnglish
Article number25
JournalBatteries
Volume8
Issue number3
DOIs
Publication statusPublished - Mar 2022
Externally publishedYes

Keywords*

  • aqueous sodium-ion batteries
  • BiSe
  • EIS
  • thin films

Field of Science*

  • 1.4 Chemical sciences
  • 2.2 Electrical engineering, Electronic engineering, Information engineering
  • 2.4 Chemical engineering

Publication Type*

  • 1.1. Scientific article indexed in Web of Science and/or Scopus database

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