Improvement of the Stability of LiPF6 Electrolytes toward Water by the Addition of LiCL

Tetsuya Kawamura, Takaaki Sonoda, Shigeto Okada, Jun Ichi Yamaki

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

It is known that LiPF6 electrolytes react with water. In this study, LiCl, LiF, LiBr and Lil were added to 1 M LiPF6/ EC + DEC electrolyte with about 5000 ppm water to inhibit the reaction of LiPF 6. When 0.1 M LiCl was added, the LiPF6 electrolyte did not react with the water for 50 hours. Differential scanning calorimetry (DSC) measurement indicated that the amount of exothermic heat at 26513, which is related to a reaction with LiPF6, did not change at all for 48 hours when LiCl was added. Based on this result, we confirmed that LiPF6 salt did not react with water when LiCl was added.

Original languageEnglish
Pages (from-to)1139-1141
Number of pages3
JournalElectrochemistry
Volume71
Issue number12
DOIs
Publication statusPublished - Dec 2003

All Science Journal Classification (ASJC) codes

  • Electrochemistry

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