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<p>Li-rich manganese-based cathode material (LRM) is considered as a promising commercial cathode due to its high capacity. This study investigated the effect of dual cation (Ca<sup>2+</sup>/Na<sup>+</sup>) co-doping on Li<sub>1.2</sub>Ni<sub>0.13</sub>Co<sub>0.13</sub>Mn<sub>0.54</sub>O<sub>2</sub> (LNCMO). The co-doping ions effectively regulated the structure of the material, providing more channels for lithium-ion transport. Ca<sup>2+</sup>/Na<sup>+</sup> co-doping effectively reduces the content of Mn<sup>3+</sup> in the material, endowed the material with excellent electrochemical performance by reducing the loss of transition metals (TM) and improving structural stability. The discharge specific capacity is 139 mAh·g<sup>−1</sup> after 100 cycles. Therefore, this study provided a feasible doping pathway and strategy for the preparation of high-performance LRM.</p> Graphical abstract <p></p>

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Dual cation co-doping strategy for synergistically improving the performance of novel Li-rich manganese-based cathode material

  • 期刊论文

  • 发表日期：

    2025年11月25日

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  • Ya-Ru Wang,
  • Jin-Yue Wang,
  • Yu-Long Xie

摘要

Li-rich manganese-based cathode material (LRM) is considered as a promising commercial cathode due to its high capacity. This study investigated the effect of dual cation (Ca2+/Na+) co-doping on Li1.2Ni0.13Co0.13Mn0.54O2 (LNCMO). The co-doping ions effectively regulated the structure of the material, providing more channels for lithium-ion transport. Ca2+/Na+ co-doping effectively reduces the content of Mn3+ in the material, endowed the material with excellent electrochemical performance by reducing the loss of transition metals (TM) and improving structural stability. The discharge specific capacity is 139 mAh·g−1 after 100 cycles. Therefore, this study provided a feasible doping pathway and strategy for the preparation of high-performance LRM.

Graphical abstract