Where Are Solid-State Batteries Today?Solid-state batteries are widely regarded as the next-generation solution for power batteries, offering the potential for higher energy density and improved safety compared to conventional liquid lithium-ion batteries.Yet despite years of research, large-scale commercialization still faces bottlenecks — not in the lab, but in mass production. Most manufacturers still rely on slurry-based coating processes: mixing materials with solvents, coating onto metal foil, and drying through long ovens.For solid-state batteries, this approach shows growing limitations: solvents can decompose sulfide electrolytes and degrade high-nickel cathodes; drying consumes over 40% of production line energy; and electrode thickness beyond 220 µm often leads to cracking, limiting energy density gains.Dry Electrodes: A More Advanced Technology PathwayHymson’s dry electrode technology completely eliminates solvent use. Instead, electrodes are manufactured through dry powder mixing, fibrillation, film formation, calendering, and lamination processes.Key benefits:Lower CAPEX and OPEXDry electrode technology eliminates the need for drying ovens and NMP recovery systems. Capital expenditure (CAPEX) can be reduced by 66%, operating expenditure (OPEX) by 81%, and sub-steps by 28%. For new production lines, this means faster ROI with lower initial investment.Higher Yield and Material UtilizationMaterial loss in dry electrode processing is only 0.98%, compared with 3–8% in slurry-based processes. Overall equipment efficiency (OEE) reaches 92%, ensuring stable production.Higher Energy DensityDry electrodes can exceed 500 µm in thickness, far beyond the 220 µm limit of slurry-based electrodes. Thicker electrodes reduce the proportion of inactive materials such as current collectors and separators, directly boosting cell-level energy density.A Critical Threshold: -60°C Dew PointSulfide-based solid-state electrolytes are extremely sensitive to moisture. Even brief exposure can generate toxic H₂S gas and damage the cell. At a -40°C dew point environment, reactions start in just 30 minutes of exposure; at -60°C dew point, reaction rates can be reduced by more than tenfold.However, -60°C dew point environment comes at a significant cost. For the same space, equipment investment is more than five times higher than that of the -40°C setups, while energy consumption increases by three to four times. As a result, most suppliers stop at -40°C.Hymson has upgraded its lab to -60°C dew point as of the end of May 2026, which covers an area of nearly 400 m². Customers can bring materials for testing without lab construction costs. The lab is fully equipped with an SEM, a resistance meter, a particle size analyzer, a membrane strength tester, and staffed by process and materials engineers for full support during trials.Hymson will showcase dry electrode technology and -60°C lab sampling service at the upcoming Battery Show Europe 2026, Technical discussions are welcome on-site.Explore more about Hymson’s latest technologies, manufacturing solutions, and industry developments on LinkedIn.This is a sponsored article and the client is responsible for the content. If you’d like to inquire about similar opportunities, please get in touch via [email protected].