Pure Lithium has reported more than 9,315 cycles from its Advanced Anode lithium metal battery technology, with the cells continuing to cycle in its laboratory.
The results were achieved at 100% depth of discharge with 1C charge and discharge rates and negligible capacity fade. The technology is being developed for applications including electric vehicles (EVs), grid-scale energy storage, and data centers.
For EV applications, lithium metal offers the potential to increase battery energy density while reducing weight compared with conventional graphite-based lithium-ion cells. Lithium is approximately 10 times more energy dense than graphite as an anode material, and replacing graphite with lithium metal can potentially double cell energy density.
Pure Lithium previously reported more than 2,200 cycles in January 2025 at 100% depth of discharge and 1C charge and discharge rates while retaining more than 80% capacity. That battery used an anode developed with a target of 1,000 cycles.
Its latest Advanced Anode technology was developed specifically to extend cycle life, which remains one of the primary challenges facing lithium metal battery commercialization.
Pure Lithium’s vertically integrated approach combines lithium metal extraction, anode production, electrolyte development, cell architecture, and battery manufacturing. Its battery chemistry is free of graphite, cobalt, nickel, and manganese.
Fluctuations during the earlier portion of testing were attributed to a lack of temperature control and multiple power failures at its former Boston laboratory. Testing is now being conducted at its Chicago laboratory.
Filed Under: Batteries, Technology News