Jeremy Twitchell, Senior Energy Analyst
Kevin Rosso
Kevin Rosso is a Battelle Fellow and the associate director of the Physical Sciences Division for Geochemistry. His research focuses on electron transfer reactions between aqueous ions, mineral surfaces, and bacterial enzymes.
Jamie Kono
Zihua Zhu
Regulation Services with Demand Response
Daniel J. Gaspar
Tom Rickey
Phung Le
Composite Separators and Redox Flow Batteries Based on Porous Separators
In this disclosure, we report development of porous fluoropolymers/silica composite separators for applications in redox flow batteries. These separators, conprised of a fibril matrix of fluorinated polyolefins and silica particles enmeshed therein, were prepared by shear-blending the silica particles and the aqueous dispersion of fluoropolymers, followed by calendering the resulting admixture into flat sheets. Flow batteries using these separators demonstrated high energy density and high efficiencies. These separators combine the advantages of exceptional chemical stability and significantly low cost of fluorinated polyolefins. Therefore, these separators have shown great potential to reduce the capital cost of redox flow batteries and promote their commercialization.