A renewable and superior thermal-resistant cellulosebased
composite nonwoven was explored as lithium-ion battery separator
via an electrospinning technique followed by a dip-coating process. It was
demonstrated that such nanofibrous composite nonwoven possessed
good electrolyte wettability, excellent heat tolerance, and high ionic
conductivity. The cells using the composite separator displayed better
rate capability and enhanced capacity retention, when compared to those
of commercialized polypropylene separator under the same conditions.
These fascinating characteristics would endow this renewable composite
nonwoven a promising separator for high-power lithium-ion battery.