Theoretical consideration on phase behaviors of poly(ethylene oxide-block-propylene oxide)/LiCF3SO3 systems in lithium battery

Sung Jin Ko, Sunjoon Kim, Sung Ho Kong, Young Chan Bae

Research output: Contribution to journalArticle

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Abstract

A new thermodynamic model is developed based on the extended perturbed hard sphere chain (PHSC) model and melting point depression theory to describe the phase behaviors of copolymer electrolyte/salt systems. The phase behaviors of poly(ethylene oxide-block-propylene oxide)/LiCF3SO3 systems are investigated by thermo-optical analysis (TOA) technique. Quantitative descriptions according to the proposed model are in good agreement with experimental data. The obtained results show that monomer ratio and sequence type of copolymers play a great role in determining eutectic points of the given systems.

Original languageEnglish
Pages (from-to)461-468
Number of pages8
JournalElectrochimica Acta
Volume49
Issue number3
DOIs
Publication statusPublished - 2004 Jan 30

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Keywords

  • Eutectic point
  • Extended PHSC model
  • Melting point depression
  • Solid polymer electrolyte

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