Patent ID: 8206853

Claim:
A non-aqueous electrolyte secondary battery comprising an anode of which current collector has thereon a thin layer of an anode active material comprising a metal which absorbs and discharges lithium, a cathode comprising a cathode active material which absorbs and discharges lithium, and a non-aqueous electrolyte where a lithium salt is dissolved in a non-aqueous solvent, the thin layer of the anode active material being divided by a gap formed along the thickness thereof and shaped into columns, wherein said non-aqueous electrolyte comprises a compound represented by the formula (III) below: wherein R represents, independently of each other, an alkyl group or aryl group that may have substituents, and wherein more than one R may be connected to another R to form a ring, and wherein the thin layer of an anode active material comprises at least one material selected from the group consisting of silicon, silicon alloys, tin and tin alloys.