For EVs, Semi-Solid-State Batteries Offer a Step Forward

China recently announced a significant investment in solid-state batteries, aiming to enhance energy density and safety in electric vehicles (EVs). These batteries use solid electrolytes instead of liquid lithium salts, offering improved performance and durability. While mass production may not be imminent, Chinese EV manufacturer Nio and WeLion are introducing semi-solid-state batteries with gel electrolytes, providing a middle ground between liquid and solid-state options. These batteries boast higher energy density and driving range compared to conventional lithium iron phosphate batteries. Despite advancements in semi-solid-state technology, the road to solid-state batteries faces challenges in performance validation and cost-effectiveness for EV propulsion. Various companies, including QuantumScape and Toyota, are actively developing solid-state batteries with promising energy densities and fast-charging capabilities. The industry is witnessing a shift towards advanced battery technologies, with companies like ProLogium Technology and Solid Power also making strides in solid-state battery development.