The SOLiDIFY project consortium has successfully developed a prototype high-performance solid-state lithium-metal battery with an impressive energy density of 1070 Wh/L, surpassing current lithium-ion batteries. This breakthrough utilizes a unique “liquid-to-solid” processed electrolyte and boasts cost-effective manufacturing adaptable to existing lithium-ion production lines.
. While some people enjoyed the nice weather all over Europe, the participants of the SOLiDIFY project met at the EMPA premises in Dübendorf. Image from
The Horizon 2020 SOLiDIFY consortium, comprised of 14 European partners, has developed a high-performance lithium-metal solid-state battery. The prototype battery, manufactured in a state-of-the-art battery lab at EnergyVille, Belgium, features a unique “liquid-to-solid” processed electrolyte, jointly developed by imec, Empa and SOLVIONIC. The battery boasts an impressive energy density of 1070 Wh/L, well above the 800 Wh/L for current lithium-ion batteries.
Enter solid-state batteries. These batteries use a solid electrolyte material through which ions flow during charge and discharge, instead of the liquid electrolyte used in conventional lithium-ion batteries. This offers potential benefits such as higher energy density and reduced susceptibility to fires. At the material level, the higher energy density of the cell results from the introduction of a thin lithium-metal anode together with a sufficiently thin solid electrolyte separator.
Now, within the SOLiDIFY project, the consortium has created a prototype of a high-performance solid-state lithium-metal battery. The pouch cell, manufactured in the state-of-the-art battery lab of EnergyVille in Genk/Belgium, achieved a high energy density of 1070 Wh/L, compared to the 800 Wh/L for today’s lithium-ion battery technologies.
This achievement was realized through careful evaluation and optimization of new materials and advanced coatings, provided by the partners. For the prototype’s electrolyte, a polymerized ionic liquid-based solid nanocomposite material was used, enabling a unique “liquid-to-solid” solidification approach for which Empa has filed a patent application.
Solid-State Battery Lithium-Metal Energy Density Electromobility Sustainable Development
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