Summary
Separators determine how well a lithium-ion battery holds up, and this study proposes electrospun mats of amorphous poly-D,L-lactide for that role - the first time the polymer has been examined as a separator. Its amorphous character is the point: it should let the electrolyte penetrate the matrix more readily and so influence ionic conductivity. Solutions at 8, 10 and 12 wt% were spun, alone and in different ratios with cellulose nanocrystals added to reduce the hydrophobicity of the scaffold. Both constituents are biocompatible and bioderived, which is unusual in a component normally made from polyolefins.
Authors & Affiliations
Linari Electrospinning Systems
Linari high voltage generator
The separators were spun using a high voltage generator from Linari Engineering onto a round copper plate covered with aluminium foil. The control unit of our generators is coded HVG-CONT-LCD; see the generator with web interface.