Kinetical threshold limits in solid-state lithium batteries: Data on practical relevance of sand equation

Abstract

The here shown data support the article “The Sand Equation and its Enormous Practical Relevance for Solid-State Lithium Metal Batteries”. [1] In this data set, all cells include the poly (ethylene oxide)-based solid polymer electrolyte (PEO-based SPE). The behaviour in symmetric Li||Li cells are provided in a three-electrode cell setup, thus with the use of a reference electrode. Moreover, the Sand behaviour is reported for varied negative electrodes with the focus on polarization onset, defined as transition time. The data of the electrochemical response after the variation of additional parameter, i.e. SPE thicknesses, are shown, as well. The theoretical Sand equation is linked with practically obtained values also for varied Li salt concentration. Finally, the discharge behaviour is provided including further charge/discharge cycles with the use of LiNi0.6Mn0.2Co0.2O2 (NMC622) as active material for positive electrodes.

Keywords

• Solid-state lithium metal batteries
• Polymer electrolytes
• High voltage
• Kinetical aspects
• Threshold limits for application
• Sand equation