A semi-industrial pilot plant for LiFePO4 production is established in Engis (Prayon’s main production site), Belgium. The installation has an annual capacity of 50 tons. After first successful tests by battery manufacturers and EV developers, the objective is to achieve customer qualification schemes.

A laboratory unit producing about 300 kg/month of LFP is also available in Engis.

In the meantime, REACH compliant product registration is under way.

Engis, Prayon’s main production site


Production process

Our lithium iron phosphate was first developed by the French Atomic Energy and Alternative Energies Commission (CEA). In 2008, Prayon signed a technology transfer agreement with CEA allowing the company to fully exploit the patented technology.

The objective was for Prayon to produce the cathode material on an industrial scale. Over the years, both the LiFePO4 product and process have significantly been improved. Today production is based on a patented wet process enabling huge yield increase. It is a high-speed continuous process that reduces processing time by a factor of 10 and the cost accordingly.

Raw material quality is a key aspect: high-purity phosphoric acid can considerably increase cyclability, and therefore extend batteries’ life. As a worldwide leader in phosphates, Prayon has secured and privileged access to high-quality raw materials.