Electrochemical Parameters of LiMn2O4 and Li4Ti5O12 Electrodes with Different Types of Binders at Negative Temperatures

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Abstract

Abstract: In this work we investigated the electrochemical properties of LiMn2O4 and Li4Ti5O12 electrode materials with two different binders: conducting polymer poly(3,4-ethylenedioxythiophene):poly(styrene-sulfonate) mixed with carboxymethyl cellulose and polyvinylidene fluoride, depending on temperature. The galvanostatic charge/discharge test demonstrated that in the temperature range +25..–30°C the capacity of electrode materials diminishes with decreasing temperature and slightly depends on the type of binder. In addition, the internal resistance (polarization) is lower for electrodes with the conductive poly-3,4-ethylenedioxythiophene:poly(styrene sulfonate)-based binder.

Original languageEnglish
Pages (from-to)245-251
JournalRussian Journal of Applied Chemistry
Volume94
Issue number2
DOIs
StatePublished - Feb 2021

Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Keywords

  • electrochemical parameters
  • lithium manganese spinel
  • lithium titanate
  • lithium-ion batteries
  • negative temperatures

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