In　this　work,　an　electrode　has　been　proposed　and　designed　on　its　interior　structure　and　controlled　morphology,　Specifically,　metallic　WS2　hollow　microspheres　have　been　synthesized　via　a　one-step　solvothermal　process,　in　the　absence　of　additives,　consisting　of　porous　nanosheets　with　a　large　surface　area.　The　individual　nanosheet　features　an　expanded　interlayer　distance　of　1.02　nm　and　metallic　characteristics,　which　can　provide　faster　transport　of　electrons　and　reduce　the　diffusion　pathway　for　sodium　ions.　Furthermore,　the　effects　of　anions　in　the　ether-based　electrolyte　on　the　cycling　performance　were　also　investigated　and　optimized.　As　a　result,　such　an　anode　can　demonstrate　superior　capacitive　behavior　with　excellent　rate　performance　(388.2　mA　h　g−1　at　0.1　A　g−1,　307.7　mA　h　g−1　at　1　A　g−1)　and　long-term　cycling　stability　(285　mA　h　g−1　at　2　A　g−1　after　2000　cycles).　©　2019　Elsevier　Inc.