Solid-state batteries are gaining momentum as the next-generation battery technology with significant commercial potential, according to the latest research from TrendForce. Manufacturers worldwide, including in the U.S. and Europe, are ramping up efforts in large-scale production development and performance validation, particularly for automotive applications.
A number of startups such as Factorial Energy, QuantumScape, and SES AI are making strides in the development of semi-solid or quasi-solid-state batteries, with first-generation products expected to enter mass production as early as 2026. In Europe, French company Blue Solutions was among the pioneers in commercializing polymer-based solid-state batteries for electric buses and port delivery vehicles, setting the stage for further advancements in the industry.
TrendForce data reveals that 17 U.S. and European solid-state battery companies have collectively raised over US$4.2 billion in funding by the end of 2024. Support from government programs like the U.S. Department of Energy and the EU’s Horizon Europe initiative has been instrumental in driving technological progress in solid-state battery development.
Several companies have progressed from R&D to pilot runs and are currently conducting vehicle integration tests with major automakers. For instance, Factorial Energy has provided battery samples to Stellantis and Mercedes-Benz, which are now undergoing prototype road testing.
Solid-state batteries offer enhanced safety and higher energy density compared to traditional lithium-ion batteries. U.S. and European manufacturers are focusing on polymer-based or oxide-based solid electrolytes as core technologies, with a strong emphasis on scalability and cost control. Despite the advancements made, challenges such as capacity expansion, cost management, and supply chain development still need to be addressed for successful commercialization.
While all-solid-state batteries that meet automotive standards are still facing technical hurdles, semi-solid or quasi-solid-state battery solutions are seen as interim options for automakers in the short term. These solutions, which incorporate a small amount of liquid electrolyte, provide a balance between performance and practicality.
In conclusion, the solid-state battery sector is rapidly evolving, with companies pushing the boundaries of innovation and collaboration to bring this technology to the mass market. As advancements continue and challenges are overcome, solid-state batteries are poised to revolutionize the automotive industry and beyond.
