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| Enhanced electrochemical performance of LiNi0.5Mn1.5O4 cathode materials via Ce-Cr co-doping |
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Received:March 27, 2025
Revised:April 14, 2025
Accepted:June 05, 2025
Published Online:April 30, 2026
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| DOI：10.3969/j.issn.1005-7854.2025.06.020 |
| KeyWord:lithium-ion batteries;self-polymerization method;Ce-Cr co-doping;synergistic effect;structural stability;electrochemical performance |
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| 1.School of Industrial Design, Guangxi Industrial Vocational and Technical College, Nanning 530001, China;2.School of Chemistry and Bioengineering，Guilin University of Technology, Guilin 541006, Guangxi, China |
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| Abstract: |
| The synergistic optimization of cycling capacity retention and Li+ deintercalation/intercalation kinetics in spinel LiNi0.5Mn1.5O4 (LNMO) cathode materials is crucial for developing high-power, long-life lithium-ion batteries. In this study, Ce-Cr co-doped LNMO materials were synthesized via a self-polymerization method, and their structural, morphological, and electrochemical properties were systematically characterized using XRD, FTIR, SEM, EDS, and galvanostatic charge-discharge tests. The results demonstrate that the optimized LiCe0.005Ni0.495Cr0.03Mn1.47O4 material delivers an initial discharge capacity of 129 mAh·g?1 at 1 C, with a capacity retention of 119 mAh·g?1 (92.2%) after 250 cycles, significantly outperforming the undoped sample. The Ce-Cr co-doping effectively enhances the electrochemical performance of LNMO cathode materials through a synergistic effect. |
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