Nanostructured　current　collectors　have　larger　specific　surface　area　and　short　ion/electron　transport　path,　which　are　highly　desirable　for　supercapacitors　applications.　Herein,　Co0.85Se@NiNPs　(Co0.85Se@NiNP)　hybrid　electrodes　are　proposed　and　fabricated,　in　which　NiNP　is　served　as　nanostructured　current　collectors.　NiNP　has　a　vertical　pore　structure　and　a　large　specific　surface　area,　which　could　effectively　promote　the　ion/electron　transport　efficiency　and　reduce　internal　electrical　resistance.　Compared　with　Ni　foam　and　Ni　foil　as　current　collectors,　NiNP　enables　Co0.85Se@NiNP　electrodes　show　significantly　improved　specific　capacity,　rate　performance　and　cycle　stability.　Finally,　an　asymmetric　supercapacitor　device　was　assembled　with　Co0.85Se@NiNP　hybrid　electrode　as　the　binder-free　positive　electrode　and　activated　carbon　(AC)　coated　on　nickel　foam　as　negative　electrode.　The　Co0.85Se@NiNP//AC　asymmetric　supercapacitors　can　work　in　a　wide　potential　window　of　0　-　1.6　V　with　an　ultrahigh　specific　capacity　of　182.3　F　g(-1)　at　1　A　g(-1).　Most　importantly,　Co0.85Se@NiNP//AC　has　a　high　energy　density　of　64.81　Wh　kg(-1)　at　800　W　kg(-1)　and　an　outstanding　cycle　stability　of　up　to　12000　cycles,　indicating　that　Co0.85Se@NiNP　electrode　has　great　application　potential　in　supercapacitors.　(C)　2021　Elsevier　Ltd.　All　rights　reserved.