Non-aqueous electrodeposition of porous tin-based film as an anode for lithium-ion battery

► Porous tin-based film with double-layer structure, i.e. SnO2/Sn-Cu. ► Tin-based film electrodeposited from Ethaline based electrolyte. ► Self-assembly distribution constructing an open and bicontinuous porous Sn network. ► Double-layer tin-based film delivering a satisfactory Li ion storage capacity.