Lithium Manganese Iron Phosphate (LMFP) cathode materials developed by UK-based Integrals Power have passed 1,500 charge-discharge cycles in independent testing. QinetiQ conducted the cycle life program. Cranfield University performed sub-zero temperature evaluations. Both test series used pouch cells from the same production batch. The cells were manufactured using LMFP material produced at Integrals Power’s multi-tonne pilot line facility in Milton Keynes, UK.
Highlights
- QinetiQ cycle testing surpassed 1,500 cycles at a 1C rate, with the pouch cell retaining nearly 80% of original capacity
- Cranfield University cold testing showed 85% retained capacity at -25°C and 68% at -30°C, far exceeding industry benchmarks
- The LMFP material features 80% manganese content, produced from European and North American raw materials
- Results position the chemistry for automotive, maritime, aerospace, and defense applications requiring long service life and extreme-condition performance
Cycle Life Testing Results
The QinetiQ-led cycle life program achieved more than 1,500 charge and discharge cycles at a 1C rate. The pouch cell retained nearly 80% of its original capacity at that point. The 1,000-cycle milestone was reached last year with greater than 80% retained capacity.
This level of durability is critical for lithium-ion battery packs in applications requiring long service life. Electric vehicles, in particular, benefit from reduced degradation over time. Higher retained capacity can contribute to stronger residual values. It can also lower warranty and repair costs for manufacturers and suppliers.
Sub-Zero Temperature Performance
Cranfield University tested pouch cells from the same batch under extreme low-temperature conditions. The results showed the following retained capacity levels:
- 85% retained capacity at -25°C
- 68% retained capacity at -30°C
These figures significantly outperform current industry benchmarks. Standard LFP chemistries typically deliver around 50% capacity under comparable conditions. Existing LMFP formulations achieve approximately 40%.
Cold-weather performance is a persistent challenge for EV adoption. Limited battery capacity at low temperatures reduces driving range in winter. Military vehicles and drones operating in arctic environments face similar constraints.
Competitive Advantages Over Existing Chemistries
Integrals Power’s LMFP material offers several advantages over Nickel Manganese Cobalt (NMC) chemistries currently favored by global vehicle manufacturers:
- Lower cost compared to NMC formulations
- Higher safety profile with reduced thermal risk
- Less toxicity in material composition
- Reduced reliance on critical minerals
- Lower carbon footprint across the production cycle
The material also delivers significantly greater energy density than standard LFP. LFP chemistry continues to gain market share globally.
Supply Chain and Sovereignty
Integrals Power produced the LMFP material at its UK pilot plant. Raw materials were sourced from Europe and North America. The company stated this demonstrates the feasibility of reducing the global automotive industry’s reliance on Chinese supply chains.
The approach also supports sovereign supply chain requirements. Defense sector demand for secure, transparent battery sourcing continues to grow.
Intellectual Property Portfolio
Integrals Power holds international patents on its LMFP technology. The company has also patented innovations across more than 20 cathode materials, including LFP. These patents reflect ongoing development potential in applications where cost and safety are primary requirements.
About Integrals Power
Integrals Power is a next-generation battery material company focused on research, development, and commercialization of cathode active materials. Its portfolio includes Lithium Iron Phosphate (LFP) and Lithium Manganese Iron Phosphate (LMFP). The company collaborates with academic, research, and industrial partners on government-funded projects to scale these materials.
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