Anodic dissolution of aluminum in non-aqueous electrolyte solutions for sodium-ion batteries

Anodic dissolution of aluminum (commonly called aluminum corrosion) is a potential issue in sodium-ion batteries. Herein, it is demonstrated how different sodium-ion battery electrolyte solutions affect this phenomenon. The type of electrolyte was critical for the presence of anodic dissolution, while the solvent appeared to alter the dissolution process. The respective impact of the electrolyte and solvent, during anodic dissolution or passivation of aluminum was investigated in electrolyte solutions developed for sodium-ion batteries.

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This article investigates the impact of different electrolyte solutions on the anodic dissolution or passivation of aluminum in sodium-ion batteries. It is found that the type of electrolyte is critical for the presence of anodic dissolution, while the solvent alters the dissolution process.