Analysis of the Decomposition Products of Lithium Hexafluorophosphate in the Electrolytic Solution of Lithium-Ion Rechargeable Batteries by Column- Switching Ion Chromatography (Part 2)

Introduction

Lithium hexafluorophosphate is commonly used as the electrolytic solution in lithium-ion rechargeable batteries. It is hydrolyzed by the small amounts of water contained in the electrolytic solution to produce fluoride and other ions. In Application News L417, we presented an example of analysis of electrolytic solution which had deteriorated due to exposure to air, using a column-switching ion chromatography system. Here, we introduce an analysis of an electrolytic solution that had been subjected to accelerated deterioration during testing.

January 27, 2012 GMT