Integrals Power emailed the news to CleanTechnica earlier this week, after recieving validation of its new LMFP EV battery cathode active material from the firm QinetiQ. The tests were conducted on pouch cells deploying graphite anodes and a liquid electrolyte.
“Validated at C-rates [high energy discharge rates] up to an extreme 10C, the tests found that at 5C, the LMFP material retained 92% of its original capacity, and at 2C, 99%,” Integrals explained.
“Even at 10C, which is far beyond the limits of any use case, capacity retention was an impressive 60%,” the company added, noting that QinetiQ was not the only third-party firm to put its LMFP through its paces.
Integrals has been focused on pumping up the proportion of manganese in its formula without losing energy density. Before handing the material over to QinetiQ, Integrals took it to other third-party testing firms and received the thumbs-up for a manganese content of 80%, while leaping the energy density hurdle with the delivery of almost 150 mAh/gr specific capacity.
“As a result, Integrals Power has demonstrated that its LMFP material can be used to make cells that will enable battery packs to deliver an optimal balance of high performance, long range, and long life that exceeds the capability of Lithium Iron Phosphate (LFP) but at less cost and less reliance on critical minerals than Nickel Cobalt Manganese (NCM),” Integrals concluded.
LFP is the cathode material favored by automakers in China due to its relatively low cost, so matching that goalpost with a higher-performing battery is a significant achievement.
Integrals founder and CEO, Behnam Hormozi chipped in his two cents, noting that “we are able to demonstrate to our customers around the world that we can enable significant cost and weight reductions, and more compact, more sustainable, and longer-lasting battery pack designs.”
Integrals is not new to the EV battery field. The company has spent years building up a collaborative network with academic partners and industry stakeholders. Last fall, Reuters reporter Nick Carey reported that Integrals began shipping test samples of both LFP and LMFP cathode materials to EV battery makers and automakers, with three customers in its pocket and 10 more in the pipeline in the US as well as Europe.
“Integrals Power has a small UK pilot production line and aims to have its first industrial scale line operational by 2027,” Carey also noted.
It’s not all on Integrals. The company can potentially license other firms to produce the material as well.