Regulation of Molecular Microheterogeneity in Electrolytes Enables Ampere‐Hour‐Level Aqueous LiMn2O4||Li4Ti5O12 Pouch Cells

and high Coulombic efficiency of 99.4% at 1 C over 200 cycles. This work provides new insights into the design of electrolytes based on the molecular microheterogeneity for rechargeable batteries.