MnMoO ₄ Sub‐Nano Sheets as Anode Materials for High‐Performance Lithium‐Ion Batteries

ABSTRACT Manganese molybdate (MnMoO ₄ ) has emerged as a promising electrode material for high‐performance energy storage systems, owing to its high theoretical capacity and favourable electrochemical characteristics. Nevertheless, its practical application remains constrained by poor structural stability and a limited number of electroactive sites. To address these challenges, MnMoO ₄ sub‐nano sheets (MnMoO ₄ SNSs) are synthesized by the co‐assembly approach using Mn salts, phosphomolybdic acid (PMo ₁₂ ), and oleylamine (OAm). Due to the high specific surface area, structural flexibility, adaptive properties, and electron delocalization of sub‐nano structures, the obtained MnMoO ₄ SNSs deliver a high reversible specific capacity of 965 mAh g ⁻¹ at 0.18 A g ⁻¹ , and demonstrate remarkable cycling durability. This work presents an effective strategy for developing structurally stable sub‐nanometer MnMoO ₄ electrodes and provides valuable insights for the rational design of next‐generation high‐energy‐density storage materials.