▎ 摘　　要

NOVELTY - Rolled aluminum secondary battery comprises an anode, a cathode, a porous or ion-permeable separator electronically separating the anode and the cathode, and an electrolyte in ionic contact with anode and cathode to support reversible deposition and dissolution of aluminum at anode, where anode comprises aluminum metal or an aluminum metal alloy as an anode active material and cathode comprises a wound cathode roll of a cathode active material having a cathode roll length, a cathode roll width, and a cathode roll thickness or diameter. The cathode active material comprises isolated graphene sheets, expanded graphite flakes, recompressed exfoliated graphite worms having constituent graphite flakes, or its combination where these graphene sheets or graphite flakes are aligned or oriented substantially parallel to a plane defined by the cathode roll length and the cathode roll width. USE - Rolled aluminum secondary battery. ADVANTAGE - The rolled aluminum secondary battery has high energy density and power density, provides proper discharge voltage profiles (having a high average voltage and/or a high plateau voltage during discharge), high specific capacity at both high and low charge/discharge rates and long cycle-life. DETAILED DESCRIPTION - Rolled aluminum secondary battery comprises an anode, a cathode, a porous or ion-permeable separator electronically separating the anode and the cathode, and an electrolyte in ionic contact with anode and cathode to support reversible deposition and dissolution of aluminum at anode, where anode comprises aluminum metal or an aluminum metal alloy as an anode active material and cathode comprises a wound cathode roll of a cathode active material having a cathode roll length, a cathode roll width, and a cathode roll thickness or diameter. The cathode active material comprises isolated graphene sheets, expanded graphite flakes, recompressed exfoliated graphite worms having constituent graphite flakes, or its combination where these graphene sheets or graphite flakes are aligned or oriented substantially parallel to a plane defined by the cathode roll length and the cathode roll width. The cathode roll width is substantially perpendicular to separator in such a manner that aligned or oriented graphene sheets or graphite flakes have a graphene edge plane in direct contact with the electrolyte and facing the separator. An INDEPENDENT CLAIM is included for method for manufacturing an aluminum secondary battery which involves: a. providing an anode containing aluminum metal or an aluminum alloy; b. preparing a cathode roll by rolling or winding a layer of isolated graphene sheets and/or expanded graphite flakes, an optional conductive additive, and an optional binder into a roll shape; where isolated graphene sheets or expanded graphite flakes are aligned or oriented perpendicular to the cathode roll thickness; c. providing a porous or ion-permeable separator electronically separating anode and cathode and an electrolyte capable of supporting reversible deposition and dissolution of aluminum at the anode and reversible adsorption/desorption and/or intercalation/ de-intercalation of ions at the cathode; and d. aligning and packing the anode, the cathode roll, and the separator layer between the anode and the cathode roll to form a battery cell in such a manner that the cathode roll width direction is substantially perpendicular to the separator plane, where the roll of aligned graphene sheets or graphite flakes is oriented in such a manner that the cathode roll has graphene edge plane in direct contact with the electrolyte and facing or contacting the separator.