Lithium manganese iron phosphate (LMFP) cathode materials developed by UK-based Integrals Power have demonstrated strong durability and cold-weather performance in independent testing, potentially strengthening the case for next-generation lithium-ion batteries beyond conventional chemistries.
A cycle-life program conducted by defense technology group QinetiQ showed pouch cells using the material surpassed 1,500 charge–discharge cycles at a 1C rate while retaining nearly 80% of their original capacity. Cells tested were produced using LMFP material manufactured at Integrals Power’s pilot-scale facility in Milton Keynes.
Separate low-temperature evaluations by Cranfield University found the same batch of cells retained 85% of capacity at −25°C and 68% at −30°C, significantly higher than typical lithium iron phosphate (LFP) or earlier LMFP formulations under comparable conditions.
Such performance is critical for applications operating in harsh environments, including electric vehicles in winter climates and military systems in Arctic regions. Battery degradation at low temperatures can sharply reduce range and operational readiness.
Integrals Power said its LMFP formulation contains about 80% manganese and is produced using raw materials sourced from Europe and North America. The company argues the chemistry offers advantages over nickel manganese cobalt (NMC) batteries, including lower cost, improved safety, reduced toxicity and decreased reliance on critical minerals.
The material also provides higher energy density than standard LFP while maintaining thermal stability, factors that could support use across automotive, maritime, aerospace and defense sectors.
Integrals Power said the results indicate potential for long service life in demanding applications, where reduced degradation can lower maintenance costs and improve asset longevity. The company also emphasized supply chain considerations, noting that sourcing outside China could support efforts to diversify battery manufacturing inputs.
The firm holds international patents covering its LMFP technology as well as innovations across more than 20 cathode materials, positioning the chemistry for further development as global demand for safer, lower-cost battery solutions grows.