Dual-Interfacial Engineering via LiPF₆ Treatment: Eradicating Li₂CO₃ on LLZTO and Regulating SEI for High-Voltage Solid-State Batteries

Key Points

• The aim is to address interfacial incompatibilities in solid-state lithium batteries to improve performance.
• Investigating the treatment of electrodes with LiPF₆
• Evaluating the impact on Li₂CO₃ presence on LLZTO
• Analyzing the resulting solid electrolyte interphase (SEI) stability
• LiPF₆ treatment effectively eradicates Li₂CO₃ formation on LLZTO surfaces
• Enhanced stability of SEI leading to improved battery performance
• Demonstrated compatibility between ceramic fillers and polymer matrix