In　subzero　environments,　sluggish　electrochemical　kinetics　and　unstable　electrode/electrolyte　interphases　hinder　progress　in　lithium　metal　batteries　(LMBs),　emphasizing　the　need　for　advanced　electrolytes　to　ensure　stability　in　harsh　environments.　Herein,　we　proposed　a　balanced　＇cocktail　optimized＇　electrolyte　by　manipulating　solvated　and　anionic　species.　The　dual　salt/dual　solvent　electrolyte　simultaneously　achieves　low　bulk　impedance　and　low　interfacial　impedance,　while　also　demonstrating　improved　Li　reversibility　and　oxidation　stability.　The　tailored　solvation　structure　encourages　the　breakdown　of　anions,　leading　to　the　formation　of　inorganic-rich　interphases　at　both　the　cathode　and　Li-anode,　which　enables　a　uniform　plating-stripping　of　Li　while　maintaining　exceptional　voltage　resilience　on　the　cathode.　Moreover,　NO3–　ions　preferentially　adsorb　onto　the　cathode　surface　within　the　inner　Helmholtz　plane,　shielding　the　easily-oxidized　non-solvating　solvent　molecules,　a　phenomenon　referred　to　as　the　＇shielding　effect＇,　thus　inhibiting　side　oxidation　reactions.　Consequently,　the　anion-derived　interface　chemistry　contributes　to　the　dendrite-free　Li　deposition　with　a　high　CE　of　99.45%,　a　stable　cycling　of　Li||NCM523　battery　with　85%　capacity　retention　after　150　cycles,　and　a　superior　low-temperature　discharge　performance　at　−30　℃　with　a　capacity　retention　of　68.2%.　This　work　sheds　light　on　an　encouraging　electrolyte　strategy　for　stable　LMBs　in　a　wide-temperature　range.　©　2024