‘World’s strongest’ EV structural battery to be revealed at Davos 2026

Researchers at Chalmers University of Technology are unveiling new data on a structural battery composite at the World Economic Forum in Davos 2026. This battery, previously named the top emerging technology of 2025, combines energy storage with mechanical load-bearing capabilities, allowing it to serve as both a battery and a structural component. The latest version approaches the energy density of traditional lithium-ion batteries while matching the mechanical stiffness of metals like aluminum and titanium. Its design uses carbon fiber for both electrodes, eliminating the need for heavy metal current collectors and reducing overall weight. Additionally, it employs a semi-solid electrolyte, enhancing safety by lowering risks of thermal runaway and fire compared to conventional liquid electrolytes. The technology holds significant promise for reducing weight and improving efficiency across various sectors. Immediate applications include lighter consumer electronics, drones, and handheld tools, while long-term goals target integration into automotive and aerospace structures to extend vehicle range and efficiency. For example, electric cars equipped with these batteries could potentially achieve up to 70%