Institut Fraunhofer Develops Water-Based LFP Battery Production Method

The Fraunhofer Institute for Production Technology and Automation has developed a new method for producing lithium iron phosphate (LFP) batteries that minimizes environmental impact by eliminating toxic solvents. By using carboxymethylcellulose (CMC), a bio-based, water-soluble binder, the process becomes fully water-based, enhancing the sustainability of lithium-ion battery production.

Published Mar 20, 2026

The Fraunhofer Institute for Production Technology and Automation has created a new method for producing lithium iron phosphate (LFP) batteries that reduces environmental impact. Traditional battery manufacturing relies on toxic solvents, such as N-methyl-2-pyrrolidone (NMP), and standard binders like polyvinylidene fluoride (PVDF).

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The new method uses carboxymethylcellulose (CMC), a bio-based, water-soluble binder, enabling a fully water-based process without organic solvents. This advancement aims to enhance the sustainability of lithium-ion battery production.