Potential Controllable Redox Couple for Mild and Efficient Lithium Recovery from Spent Batteries. - Chang, Xin; Fan, Min; Yuan, Boheng; Gu, Chao‐Fan; He, Wei‐Huan; Li, Chen; Feng, Xi‐Xi; Xin, Sen; Meng, Qinghai; Wan, Li‐Jun; Guo, Yu‐Guo (Angewandte Chemie International Edition, 2023)