A composition of the conducting salt lithium hexafluorophosphate (LiPF6) in a mixture of cyclic ethylene carbonate with different short-chain linear organic carbonates represents the essential electrolyte formulation for modern lithium-ion batteries (LIB). The commercial success of the electrolyte was guaranteed by its well-balanced properties. However, its main disadvantage includes high chemical and thermal instability of LiPF6 in the electrolytes leading to formation of i.a. hydrofluoric acid and inorganic as well as organic phosphates. Ion chromatography (IC) is an important analytical method for analysis of ionic compounds and decomposition products in LIBs to evaluate the electrolyte degradation. However, the analysis time of anions can be unacceptably long due to strong retention of highly polarizable PF6 - requiring e.g. an additional gradient step with organic modifiers. Column-switching IC applied in this work is a solution for fast analysis of fluoride and related ionic degradation products in LiPF6-based LIB electrolytes. The isocratic elution used in this method has the advantage to significantly shorten the total analysis time by avoiding the equilibration step normally necessary after the gradient step.The Shimadzu electrolytic suppressor ICDS-40A has a very low internal volume which significantly improves the sensitive analysis of fluoride due to its long distance to the water dip. Download now to learn more.
Please check the highlighted fields and try again.
Please enter your first and last name.
Please enter the name of the company or institution you work at.
Please enter your mailing address.
Please enter the e-mail address you would like to be contacted at.