A high performance separator with improved thermal stability for Li-ion batteries†
Abstract
A thermally stable separator based on a poly(phenylene oxide)/SiO2 composite is prepared using a dry phase inversion method. The separator endures up to 250 °C without obvious thermal deformation. A LiNi1/3Mn1/3Co1/3O2/graphite cell using the composite separator showed excellent cycling performance, especially at high C-rates.