High-temperature performance investigation of adiponitrile-based electrolytes for sodium-ion batteries

Key Points

• To explore how adiponitrile-based electrolytes perform under high temperatures in sodium-ion batteries.
• Investigated the effects of adiponitrile (ADN) in battery electrolytes.
• Analyzed the formation of the compact and stable CEI film.
• Monitored side reactions at elevated temperatures.
• Adiponitrile helps form a stable CEI film.
• Side reactions at high temperatures are suppressed.
• Overall performance of sodium-ion batteries is improved.