A　novel　nanocomposite　containing　CuAl-layered　double　hydroxide　(CuAl-LDH)　nanoflowers　with　ultrathin　petals　and　cobalt　tungstate　nanostars　(CuAl-LDH/CoWO4)　was　employed　to　devise　a　high-performance　supercapacitor.　In　the　proposed　composite,　a　CoWO4　binary　metal　oxide　was　used　to　generate　more　electroactive　sites,　enhance　the　conductivity　of　the　CuAl-LDH　nanoflowers,　and　prevent　their　aggregation,　therefore　promoting　the　electrochemical　activity　of　the　resultant　electrode.　A　three-electrode　system　was　adopted　to　investigate　the　electrochemical　performance　of　the　nanocomposite　and　assess　its　potential　for　application　as　an　electrode　material　in　supercapacitor　devices.　The　nanocomposite　presented　an　outstanding　specific　capacitance　at　a　current　density　of　5　A　g(-1)　(i.e.,　675　F　g(-1)),　exhibiting　noticeable　cycling　stability　over　5000　continuous　cycles.　Also,　application　of　the　nanocomposite　in　the　fabrication　of　a　two-electrode　asymmetric　supercapacitor　provided　35.87　W　h　kg(-1)　maximum　energy　density,　10　188　W　kg(-1)　power　density　and　high　cycling　stability.　So,　the　fabricated　supercapacitor　maintained　97.1%　of　its　initial　capacitance　after　5000　cycles　and　powered　a　red　light-emitting　diode　for　a　considerable　period　of　time.　Based　on　electrochemical　measurements,　it　was　found　that　the　specific　morphology　of　the　CuAl-LDH/CoWO4　nanocomposite　helps　it　to　provide　many　ion/charge　transportation　paths,　a　high　electrochemically　active　surface　area　and,　therefore,　a　high　level　of　supercapacitance.　In　general,　the　findings　of　this　study　show　that　the　CuAl-LDH/CoWO4　nanocomposite　is　an　appropriate　electrode　material　for　the　practical　storage　of　energy.