Lithium separator maker Dreamweaver International (Dreamweaver) has launched a line of nanofibre-based separators for supercapacitors.
According to the US company, the separators of the Silver AR line show 27% lower internal resistance. In side-by-side comparisons done by outside laboratories comparing Dreamweaver’s Silver AR line to a competitor, the separators also showed 63% lower Gurley resistance, 21% higher strength and 9% higher capacitance.
The separators use cellulose fibrillated to approximately 250 nanometre diameter fibres, combined with microfibers of approximately 5 microns diameter in a uniform nonwoven web.
Dreamweaver plans to manufacture on large-scale, using a machine capable of making over 40m sq.m./year.
“We are pleased that several innovative supercapacitor companies have chosen to use Dreamweaver separators in their products, and to be working with over 25 manufacturers on developmental cells to be launched soon,” said Brian Morin, Dreamweaver’s president & COO. The company developed the separators together with supercapacitor manufacturers for over two years.
Dreamweaver will be presenting the results of its study at the IDTechEx Supercapacitors USA Conference in Santa Clara next month.