The conducting salt, which is the most valuable part of the electrolyte, is the core of LiBs. The electrolyte’s aging affects the chemistry of other essential elements like electrodes and their interfaces. To improve the current and future batteries, it is important to study the aging and degradation mechanisms and find solutions within the chemical composition or the industrial manufacturing processes. Here you will discover how NMR spectroscopy provides robust and reproducible results in electrolyte analysis, for both experts and novices in spectroscopy, in academic or industrial settings.