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Journal of Applied Electrochemistry

, Volume 35, Issue 3, pp 259–265 | Cite as

Open circuit voltage for solid polymer electrolyte/salt systems in lithium batteries

  • Sung Jin Pai
  • Young Chan Bae
Article

Abstract

The open circuit voltage (OCV) model of the solid polymer electrolyte (SPE)/salt system in lithium batteries is established by combining concentrated solution theory with the modified double lattice–non-random (MDL-NR) model which describes the non-ideal behavior of the salt activity in the polymer electrolyte. The activity parameters are obtained from the phase diagram for the given systems and used to describe the OCV of the corresponding systems with one additional parameter, transport number, t + 0 . The proposed model agrees very well with the OCV data for various PEO/salt systems.

Keywords

lithium battery MDL-NR model melting point depression open circuit voltage solid polymer electrolyte 

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Copyright information

© Springer 2005

Authors and Affiliations

  1. 1.Division of Chemical Engineering and Molecular Thermodynamics LaboratoryHanyang UniversitySeoulKorea

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