5 min read

Benchmarking the performance of all-solid-state lithium batteries

Latest updated: October 3, 2023

Authors: Simon Randau, Dominik A. Weber, Olaf Kötz, Raimund Koerver, Philipp Braun, André Weber, Ellen Ivers-Tiffée, Torben Adermann, Jörn Kulisch, Wolfgang G. Zeier, Felix H. Richter & Jürgen Janek – Nature Energy
DOI: https://www.nature.com/articles/s41560-020-0565-1
Instrument(s) Used: VMP-300

Increasing the specific energy, energy density, specific power, energy efficiency and energy retention of electrochemical storage devices are major incentives for the development of all-solid-state batteries. However, a general evaluation of all-solid-state battery performance is often difficult to derive from published reports, mostly due to the interdependence of performance measures, but also due to the lack of a basic reference system. Here, we present all-solid-state batteries reduced to the bare minimum of compounds, containing only a lithium metal anode, β-Li3PS4 solid electrolyte and Li(Ni0.6Co0.2Mn0.2)O2 cathode active material. We use this minimalistic system to benchmark the performance of all-solid-state batteries. In a Ragone-type graph, we compare literature data for thiophosphate-, oxide-, phosphate- and polymer-based all-solid-state batteries with our minimalistic cell. Using fundamental equations for key performance parameters, we identify research targets towards high energy, high power and practical all-solid-state batteries.

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