Aqueous　zinc-ion　batteries　are　highly　favored　for　grid-level　energy　storage　owing　to　their　low　cost　and　high　safety,　but　their　practical　application　is　limited　by　slow　ion　migration.　To　address　this,　a　strategy　has　been　developed　to　create　a　cation-accelerating　electric　field　on　the　surface　of　the　cathode　to　achieve　ultrafast　Zn2+　diffusion　kinetics.　By　employing　electrodeposition　to　coat　MoS2　on　the　surface　of　BaV6O16　center　dot　3H(2)O　nanowires,　the　directional　built-in　electric　field　generated　at　the　heterointerface　acts　as　a　cation　accelerator,　continuously　accelerating　Zn2+　diffusion　into　the　active　material.　The　optimized　Zn2+　diffusion　coefficient　in　CC@BaV6O16　center　dot　3H(2)O@MoS2　(7.5　x　10(-8)　cm(2)　s(-1))　surpasses　that　of　most　reported　V-based　cathodes.　Simultaneously,　MoS2　serving　as　a　cathodic　armor　extends　the　cycling　life　of　the　Zn-CC@BaV6O16　center　dot　3H(2)O@MoS2　full　batteries　to　over　10000　cycles.　This　work　provides　valuable　insights　into　optimizing　ion　diffusion　kinetics　for　high-performance　energy　storage　devices.　(c)　2024　Science　Press　and　Dalian　Institute　of　Chemical　Physics,　Chinese　Academy　of　Sciences.　Published　by　ELSEVIER　B.V.　and　Science　Press.　All　rights　are　reserved,　including　those　for　text　and　data　mining,　AI　training,　and　similar　technologies.