Benchmarking the performance of all-solid-state lithium batteries

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...

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Bibliographic Details
Published in:Nature energy 2020-03, Vol.5 (3), p.259-270
Main Authors: Randau Simon, Weber, Dominik A, Kötz Olaf, Koerver Raimund, Braun, Philipp, Weber, André, Ivers-Tiffée Ellen, Adermann Torben, Kulisch Jörn, Zeier, Wolfgang G, Richter, Felix H, Janek Jürgen
Format: Article
Language:English
Subjects:
Benchmarks
Electrochemistry
Electrolytic cells
Energy efficiency
Lithium
Lithium batteries
Parameter identification
Polymers
Power management
Reference systems
Solid electrolytes
Solid state
Specific energy
Target recognition
Thiophosphate
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Summary: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.Considering the interdependence of performance measures and the lack of a basic reference system for all-solid-state batteries, Jürgen Janek and co-workers analyse literature performance data for major types of all-solid-state batteries and benchmark them against minimalistic reference cells.
ISSN:2058-7546
2058-7546
DOI:10.1038/s41560-020-0565-1