Front Cover: Evaluation of Alternative Lithium Salts for Li Ion Batteries With SiO x ‐Containing Anodes: Characteristic Failure Mechanisms and Different Impacts of the Fluoroethylene Carbonate Additive (Small Sci. 3/2026)

Key Points

• The study aims to evaluate alternative lithium salts for enhancing the performance of Li-ion batteries with Si-based anodes.
• Analysis of different lithium salts and their impact on SiO x-containing anodes.
• Investigation of solid electrolyte interphase (SEI) formation and re-formation processes.
• Examination of fluoroethylene carbonate additive effects on battery performance.
• Alternative lithium salts showed varied effectiveness in maintaining energy density.
• Some SEI species were identified as potentially recoverable for active lithium, indicating unforeseen benefits.
• The fluoroethylene carbonate additive impacted SEI formation, influencing overall battery capacity.