Lenovo is preparing to launch a next-generation laptop powered by a silicon-anode battery, aiming to become the first major global PC maker to commercialize the technology in a notebook computer.
Industry sources said on Sep. 10 that Lenovo plans to introduce a next-generation laptop equipped with its “ED 1000” silicon-anode battery next year. The battery was jointly developed by Lenovo and researchers at Shanghai Jiao Tong University.
Lenovo has been building a broader ecosystem for next-generation battery development and performance improvements, collaborating with Shanghai Jiao Tong University as well as Chinese companies including BYD and CosMX. The company has pursued partnerships spanning industry, academia and research institutions to advance the technology.
Silicon batteries replace graphite—the conventional material used in battery anodes—with silicon. Silicon has a theoretical capacity more than 10 times higher than graphite. Raising the silicon content in an anode can increase energy density, extend laptop battery life and reduce charging times.
Lenovo's ED 1000 reportedly delivers a volumetric energy density of 1,000 watt-hours per liter (Wh/L), around 10% higher than conventional graphite-based batteries. Graphite-anode laptop batteries are generally considered to have an effective ceiling of about 900 Wh/L. The ED 1000 is said to be the first battery for laptops and workstations to reach the four-digit Wh/L range.
The technology could allow Lenovo to extend battery life and improve charging speeds without increasing the physical size of the battery pack. It could also support thinner and lighter laptop designs.
The potential benefits are particularly relevant for next-generation AI PCs, where power consumption is rising rapidly. On-device AI workloads—which process AI tasks locally on the laptop rather than relying solely on cloud connectivity—place heavier demands on battery capacity and efficiency. Lenovo expects the new battery technology to deliver power efficiency and performance gains that users may not experience with conventional laptops.
However, silicon-anode batteries remain difficult to commercialize. Silicon can expand to more than three times its original volume during charging and discharging, a phenomenon known as swelling. Controlling that expansion while maintaining durability, safety and consistent performance makes battery design and mass production significantly more challenging.
That technical hurdle is a major reason why silicon-anode batteries have not yet been broadly commercialized in laptop computers. For Lenovo, securing sufficient durability, safety and scalable manufacturing capability will be critical before bringing the technology to market.
Lenovo plans to deploy its next-generation silicon battery in high-performance AI PCs with high power demands. The company aims to strengthen its technological position in the AI laptop market through improved battery performance and compete more aggressively in the global PC market.
A Lenovo representative said the company could not confirm a specific launch schedule for laptops equipped with silicon batteries.
Silicon-anode technology has already begun to gain traction in smartphones, where battery packs are smaller than those used in laptops. Chinese smartphone makers such as Honor have been among the early adopters, while Samsung Electronics has also introduced silicon batteries in its Galaxy Z8 foldable smartphone series.
