Cellfion

Cellfion is a renewable energy company headquartered in Stockholm, Sweden specializing in Hydrogen, Energy Storage.

Cellfion is a Swedish materials company specialising in the development and manufacturing of PFAS-free, cellulose-based membranes and filter media for energy, process, and filtration applications. The company produces advanced membranes for hydrogen production via PEM electrolysers, fuel cell humidification systems, flow batteries, and ion-separation technologies including nanofiltration and electrodialysis. Cellfion's membranes are made from functionalized cellulose and polymer materials, designed to replace conventional fluorinated alternatives. The company is transitioning from laboratory research to commercial manufacturing, with support from the European Innovation Council and Swedish Energy Agency to establish industrial-scale production capabilities.