Formosa Smart Energy and MCUT Launch Pilot Production Line for All-Solid-State Lithium Batteries

Formosa Smart Energy announced the official launch of its pilot produc-tion line for all-solid-state lithium batteries, developed in collaboration with the Battery Research Center of Green Energy at Ming Chi University of Technology(MCUT). This milestone marks a significant step forward in next-generation battery technology.

The new pilot line encompasses the full process chain—from synthesis of key materials and components to battery stacking and module fabrication—while integrating advanced testing and quality control mechanisms to en-sure product and process stability. Proprietary patented technologies are al-so applied to enhance battery performance and cycle life, accelerating the practical adoption of all-solid-state batteries and building a foundation for core capabilities in the future energy ecosystem.

Chairperson Sandy Wang highlighted that all-solid-state batteries offer three major advantages: high energy density, long driving range, and supe-rior safety. With no liquid electrolyte, the technology delivers excellent thermal stability, significantly reducing the risks of thermal runaway, fire, or explosion. Moreover, by replacing the electrolyte and separator in tradi-tional lithium-ion batteries with a solid-state electrolyte film, packaging and cooling system designs can be simplified, reducing both weight and size while boosting driving range.

Sandy Wang acknowledged that despite remaining technical barriers before global large-scale commercialization, the construction and operation of this pilot line enables Formosa Smart Energy to validate the feasibility of mate-rial synthesis and process technologies. This development lays the ground-work for future mass production capabilities and provides valuable

operational know-how, while the company continues to advance integrated R&D and manufacturing processes to align with the global all-solid-state battery market.

The pilot line, located at MCUT’s Battery Research Center of Green Ener-gy, is now in operation. General Manager Hui-Chi Liu emphasized that one of the key technical challenges in all-solid-state batteries lies in the solid–solid interfacial resistance between electrodes and electrolytes, which im-pacts both power output and cycle life. Together, Formosa Smart Energy and Ming Chi University have secured 19 invention patents across Taiwan, China, the United States, and Japan, covering anode materials, solid-state electrolyte films, and composite cathode materials. By combining patented interlayer designs with innovative membrane–electrode structures, the team has successfully reduced interfacial resistance, providing practical solutions for achieving high-performance solid-state batteries.

Hui-Chi Liu added that during the pilot stage, the all-solid-state batteries will also undergo rigorous international safety standard tests, including short circuit, overcharge, and physical stress scenarios such as impact, nail penetration, compression, and drop tests. Environmental simulations will also be conducted, including rapid temperature cycling and extreme thermal conditions—for example, heating to 150°C for 10 minutes without rupture or ignition—demonstrating the battery’s outstanding safety performance under harsh conditions.

Looking ahead, Formosa Smart Energy and MCUT will continue investing in the R&D and commercialization of solid-state battery technologies, strengthening material innovation and scaling-up capabilities. By steadily advancing from pilot line to market readiness, the partnership aims to accel-erate the practical adoption of next-generation batteries and unlock new possibilities for future energy applications.