Improving the electrochemical performance of LiNi0.5Co0.2Mn0.3O2 via surface modification with Li1.3Al0.3Ti1.7(PO4)3 coating
This paper presents a simplified process for synthesizing LiNi0.5Co0.2Mn0.3O2 (NCM523) coated with Li1.3Al0.3Ti1.7(PO4)3 (LATP) to optimize electrochemical characteristics by adjusting LATP content adjustment. LATP, as a superior Li-ion conductive layer, reduces polarization and enhances cycling per...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-07-01
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| Series: | Electrochemistry Communications |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1388248125000852 |
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| Summary: | This paper presents a simplified process for synthesizing LiNi0.5Co0.2Mn0.3O2 (NCM523) coated with Li1.3Al0.3Ti1.7(PO4)3 (LATP) to optimize electrochemical characteristics by adjusting LATP content adjustment. LATP, as a superior Li-ion conductive layer, reduces polarization and enhances cycling performance at 50 °C. X-ray diffraction (XRD) confirms that all samples maintain a stable alpha-NaFeO2 layered structure. Performance tests of half and full batteries at room temperature and 50 °C show that the 2 wt% LATP-coated sample exhibits the best electrochemical performance. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) show that the LATP-coated sample has higher lithium ion diffusion coefficients and lower charge transfer resistance, which improves rate capability. |
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| ISSN: | 1388-2481 |