Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 937, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2022.168389
Keywords
Li -rich cathode materials; Single crystal; Surface modification; Diffusion coefficient
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To enhance the electrochemical performance and structural stability of Li1.2Mn0.54Ni0.13Co0.13O2, Li3PO4 surface modification and single crystallization are utilized. The results of electrochemical characterization indicate that the single crystal cathode material modified with Li3PO4 has excellent cycle stability and Li+ diffusion coefficient. Li-ion conductor Li3PO4 provides diffusion channels for Li+ migration and inhibits phase transition. Coating Li3PO4 on Li-rich cathode materials is an effective approach to improve their electrochemical performance and structure stability.
To improve electrochemical performance and structure stability, Li3PO4 surface modification and single crystallization are applied for Li1.2Mn0.54Ni0.13Co0.13O2 to improve structural stability and upgrade electro-chemical performance. The electrochemical characterization indicates that single crystal cathode material with Li3PO4 surface modification has high cycle stability and superior Li+ diffusion coefficient. Li-ion con-ductor Li3PO4 can supply diffusion channels for Li+ migration and inhibit phase transition. Coating Li3PO4 on Li-rich cathode materials is an effective method to improve the electrochemical performance and structure stability of the materials. (c) 2022 Elsevier B.V. All rights reserved.
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