Aqueous　zinc　ion　batteries　(ZIBs)　have　been　recognized　as　highly　promising　energy　storage　systems　due　to　their　high　safety,　low　cost,　and　environmental　benignity.　However,　low　voltage　platform　of　cathode,　coupled　with　uneven　Zn　deposition,　side　reactions,　and　limited　operational　temperature　range　caused　by　free　water　molecules,　has　hampered　the　practical　application　of　ZIBs.　To　address　these　issues,　1-ethyl-3-methylimidazolium　acetate　(EmimAc)　ionic　liquid　(IL)　is　utilized　to　modify　the　active　water　in　polyvinyl　alcohol　(PVA)-based　hydrogel　electrolyte.　The　abundant　hydroxyl　groups　on　PVA　chains,　along　with　strong　interactions　between　IL　and　H2O,　disrupt　hydrogen　bonds　between　water　molecules.　This　hydrogel　electrolyte　alleviates　side　reactions,　and　improves　low-temperature　performance　through　suppressing　water　crystallization　and　lowering　the　freezing　point　of　the　electrolyte.　Furthermore,　the　strong　binding　of　hydroxyl　groups　of　PVA　to　Zn2+　restricts　Zn2+　migration,　ensuring　the　de-intercalation　of　Na+　at　the　Na3V2(PO4)(3)　(NVP)　cathode,　thereby　maintaining　a　high　voltage　plateau　(1.48　V)　for　improved　energy　density.　Benefitting　from　these　merits,　a　pouch　cell　of　Zn||NVP　achieves　100　cycles　at　25　degrees　C,　and　a　coin　cell　achieves　81.3%　capacity　retention　after　1600　cycles　at　-20　degrees　C.　This　work　represents　a　significant　advance　in　designing　expanded　work　voltage/temperature　hydrogel　electrolytes　for　ZIBs.