European battery startup SOLiTHOR has produced its first 10 Ah demonstration cell, marking an increase in the physical scale of its solid-state lithium battery technology. The company intends for this larger format to show that its laboratory chemistry can transition into commercial production for industries requiring specialized power sources.
Alongside the production of the larger cell, the company reported stack-level energy densities of 465 Wh/kg and 1400 Wh/L within a pouch design. Engineers reached these figures by introducing a high-loading cathode with an areal capacity of 8mAh/cm2 into the company’s proprietary Solid Composite Electrolyte.
Unlike traditional lithium-ion systems or certain semi-solid designs, this chemistry uses a sol-gel process that functions without requiring any liquid electrolyte injections during assembly.
Laboratory evaluations indicate specific performance characteristics under varied operational environments. When testing multilayer pouch cells at a temperature of 25°C, the cells sustained continuous discharge rates reaching 5C without experiencing major drops in capacity.
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