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Study of the interaction polymer/organic solvents/salt in microporous PVdF separator for lithium batteries
Author(s) -
Saunier J.,
Alloin F.,
Sanchez JY.
Publication year - 2003
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200351010
Subject(s) - microporous material , electrolyte , materials science , separator (oil production) , wetting , polyethylene , chemical engineering , polymer , electrical resistivity and conductivity , lithium (medication) , swelling , polymer chemistry , composite material , chemistry , electrode , medicine , physics , electrical engineering , engineering , thermodynamics , endocrinology
Interactions between microporous PVdF and polar liquid electrolytes have been investigated. PVdF separators are an attractive alternative to microporous apolar polyolefins, such as polyethylene, whose poor wetting by these electrolytes induces a significant resistivity increase in lithium batteries. The swelling study of polymer/electrolyte interactions has shown that the resistivity increase induced by microporous PVdF is moderate and will enable the electrolyte composition to be optimized. Existence of a shut‐down effect is an asset for the battery safety.