Dual‐Ion Batteries: High Oxidation Potential ≈6.0 V of Concentrated Electrolyte toward High‐Performance Dual‐Ion Battery (Adv. Energy Mater. 25/2021)

In article number 2100151, Yongbing Tang and co-workers develop a 4.0 m LiFSI/TMS high-concentration and high-voltage electrolyte, which shows significantly suppressed gas formation and enhanced anion intercalation reversibility under high working voltages. Based on this electrolyte system, the dual-ion battery (DIB) exhibits much improved electrochemical performance. This work provides an effective approach to improve the performance of DIBs.