The　uniformly　flower-like　WO3/CoWO4/Co　nanostructures　were　synthesized　via　a　facile　one-step　hydrothermal　reaction　with　solid　heteropolyacid　of　W　and　Co　as　precursors　and　followed　by　heating　process　and　calcination　under　the　air　condition.　The　as-prepared　WO3/CoWO4/Co　composite　showed　a　high　discharge　capacity　of　1104　mAhg(-1)　after　40　cycles　at　100　mAg(-1),　and　delivered　excellent　rate　performance　of　1074,　685,　509,　335　mAhg(-1)　at　200,400,800,1600　mAg(-1),　respectively.　The　excellent　electrochemical　performance　of　WO3/CoWO4/Co　nanostructures　is　attributed　to　the　uniform　dispersion　of　discrete　nanoparticles,　and　it　also　can　be　highly　optimized　by　the　freestanding　combination　of　Codoped　tungsten　trioxide　and　cobalt　tungstate,　which　helps　to　provide　high　specific　capacity,　high　rate　cycling　and　stable　life　performance.　(C)　2017　Published　by　Elsevier　B.V.