Ultra thin nonwoven separators have been developed for lithium-ion and supercapacitors batteries by US firm Dreamweaver International.
The patented technology relies on lighter weights and high compression to produce nonwoven separators that could be produced as low as 10–12 microns thick.
Dreamweaver has prototypes for a 15 micron titanium product developed for supercapacitors, and a 20 micron silver product developed for the lithium-ion battery market.
The products will be madeƒ by Glatfelter, Dreamweaver’s production partner.
The innovation allows nonwoven separators to be manufactured for lithium-ion battery separators with the benefits of enhanced safety and lower cost.
“We have listened to our customers, who were demanding low thickness, low pore size and high strength while continuing to value the safety characteristics and low cost of Dreamweaver’s current products,” said Brian Morin, president and COO of Dreamweaver International.
Stephen Voller, CEO of UK based graphene supercapacitor firm ZapGoCharger Ltd, said perhaps the most important part is that the cost per farad would decrease because of significantly reduced use of expensive electrolyte.
Pic: Dreamweaver’s new separator technology (right) is 1/2 the thickness of current state-of-the-art non-woven separators