Abstract: Electrospinning is a powerful and versatile method to fabricate nanofibers and electrospun membranes. The principle, devices, mechanism and developments of electrospinning were systematically introduced in this paper. The techniques of electrospinning, the factors which affect the properties of electrospun nano-materials, the preparation and applications of electrospun membranes were discussed in details. As a highlighted part, the application of electrospun membrane used as lithium-ion battery separator and the remarkable achievement of multi-spinneret Electrospinning were also presented.

Key words: Electrospinning, Multi-spinneret electrospinning, Electrospun membrane, Lithium-ion battery separator