Fitting of the voltage-Li

Mauro Pasquali, Alessandro Dell'Era, Pier Paolo Prosini

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Fitting of the voltage vs. insertion curves of the LiFePO 4 electrode was based on theoretical expressions describing the Li + diffusive process in a solid medium. The noninteracting gas model for the chemical potential of ions distributed in a solid matrix was taken into account, and the diffusion coefficient and the energy activation for the diffusion process were accordingly calculated. The polarization curves at various discharge stages were theoretically obtained, and a good agreement was found with the experimental data at all discharge rates. A mathematical relation describing the trend of the diffusion resistance vs. insertion degree was also developed. © 2008 Springer-Verlag.
Original languageEnglish
Pages (from-to)1859 - 1865
Number of pages7
JournalJournal of Solid State Electrochemistry
Volume13
Issue number12
DOIs
Publication statusPublished - Dec 2009

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Electrochemistry

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