Cover Page - Capillary Electrophoresis with Contactless Conductivity Detection for the Quantification of Fluoride in Lithium Ion Battery Electrolytes and in Ionic Liquids - A Comparison to the Results Gained with a Fluoride Ion-Selective Electrode

Pyschik M, Klein-Hitpaß M, Girod S, Winter M, Nowak S

Zusammenfassung

The Front Covershows a lithium ion cell from a lithium ion battery system. On the left, the electropherogram for the determination of lithium and transition metals in cathode samples after microwave digestion is presented. With the capillary electrophoresis (CE) method with UV/Vis detection, the active material stoichiometry can be calculated.1On the right, the electropherogram of an organic solvent based electrolyte for the fluoride quantification detected by CE with the conductivity detector is shown.2The electrolyte can be obtained by centrifugation of the separator. Both methods are newly developed for the lithium ion battery research. 1Determination of Lithium and Transition Metals in Li1Ni1/3Co1/3Mn1/3O2 (NCM) Cathode Material for Lithium-Ion Batteries by Capillary Electrophoresis 2Capillary Electrophoresis with Contactless Conductivity Detection for the Quantification of Fluoride in Lithium Ion Battery Electrolytes and in Ionic Liquids - A Comparison to the Results Gained with a Fluoride Ion-Selective Electrode