Interplay of crystal phase and morphology in WO3 for aqueous ammonium ion batteries: Decoupling their respective roles in NH4+ storage performance

Key Points

• NH4+ storage performance is significantly influenced by the crystal phase and morphology of WO3.
• Key evidence shows that structural differences in WO3 lead to varied ion storage capabilities, enhancing efficiency.
• Decoupling the effects during experiments helps identify optimal combinations for electrode materials in batteries.
• These findings highlight the importance of material design in improving storage performance for future battery technologies.