▎ 摘　　要

NOVELTY - An asymmetric nanocomposite supercapacitor comprises a porous separator provided between two electrodes, coated with an electrolyte. The first electrode comprises a first substrate at least partially coated on one face, with a first mixture of a first binding compound and a carbonaceous material. The second electrode comprises a second substrate at least partially coated on one face, with a second mixture of a second binding compound and monoclinic tungsten-oxide nanoplates. The faces of the two substrates coated with the carbonaceous material and m-tungsten oxide nanoplates, respectively, are separated by and in direct contact with porous separator. USE - Asymmetric nanocomposite supercapacitor is used as battery in wearable devices (claimed) and other energy storage devices. ADVANTAGE - The asymmetric nanocomposite supercapacitor having monoclinic tungsten oxide nanosheets as electrode material, has high specific capacitance across a wide operation potential, opening potential application in various energy storage devices. In the supercapacitor, the m-WO3 and HRG-based electrodes function as stable and effective electrodes suitable for fabricating supercapacitors suitable for preparing high-performance and low-cost future generation efficient energy storage devices. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: 1) A wearable device which comprises asymmetric nanocomposite supercapacitor electrically connected to a sensor, where supercapacitor functions as a battery; and 2) preparation of asymmetric nanocomposite supercapacitor, which involves: i) mixing 80-90 wt.% carbonaceous material with 10-20 wt.% first binding compound in a polar aprotic solvent, for at least 3 hours, to form a carbonaceous slurry; ii) mixing 80-90 wt.% m-tunsten oxide (WO3) nanoplates with 10-20 wt.% second binding compound, in a polar aprotic solvent, for at least 3 hours, to form m-WO3nanoplates slurry; iii) coating a layer of the carbonaceous slurry, on first substrate to form a carbonaceous electrode; iv) coating a layer of m-WO3nanoplates slurry on second substrate, to form m-WO3nanoplates electrode; v) drying the carbonaceous electrode and m-WO3nanoplates electrode at 60° C or more, for at least 4 hours, to form a dried carbonaceous electrode and a dried nanoplates electrode, respectively; vi) soaking the porous separator in an aqueous solution of electrolyte, for at least 1 hour, to form an electrolyte porous separator; and vii) combining the dried carbonaceous electrode, the dried nanoplates electrode and the electrolyte porous separator, where the substrates are outer layers and the carbonaceous and m-WO3nanoplates are inner layers separated by the electrolyte porous separator, thus forming asymmetric nanocomposite supercapacitor. DESCRIPTION OF DRAWING(S) - The drawing shows fabricated asymmetric super capacitor with highly reduced graphene oxide as positive electrode and m-tunsten oxide as negative electrode.