Salt‐in‐Salt Mediated Weak‐Solvent Electrolyte Enabling Fast‐Charging and Wide‐Temperature Lithium‐Ion Batteries

Key Points

• The aim is to improve lithium-ion battery performance by exploring solvation chemistry and interfacial engineering.
• Developed a salt-in-salt mediated weak-solvent electrolyte
• Investigated the effects on battery charging speeds and temperature ranges
• Analyzed the relationship between solvation chemistry and battery performance
• Achieved faster charging rates compared to traditional electrolytes
• Expanded operational temperature range for better battery efficiency
• Provided evidence for improved interfacial stability, enhancing battery safety