电源技术2024，Vol.48Issue(5)：843-849,7.DOI:10.3969/j.issn.1002-087X.2024.05.010
不同比例CeO2包覆LNMO材料的电化学性能研究
Electrochemical properties of LNMO materials coated with different proportions of CeO2
摘要
Abstract
LiNi0.5Mn1.5O4(LNMO)cathode material was prepared by pH controlled co precipitation method,and SEM physical characterization showed that the material exhibited agglomerated spheri-cal particle morphology.Different proportions of CeO2 were used to coat and optimize the electro-chemical performance of LNMO cathode materials.The structure and morphology of CeO2-LNMO materials were characterized through physical tests.The electrochemical performance of CeO2-LNMO materials was analyzed through cycling,rate,voltammetry,and impedance tests.The CeO2-LNMO material with a CeO2 coating amount of 2%showed the best electrochemical performance.The first discharge specific capacities at high rate 5 C and 10 C were 108.8 and 97.6 mAh/g,and the capacity retention rate was 92.5%after 100 cycles at 1 C.CeO2 coating can enhance the conductivity of LNMO materials,improve the interfacial stability of materials,and optimize the electrochemical performance of LNMO cathode materials.关键词
CeO2包覆/共沉淀法/LiNi0.5Mn1.5O4/电化学性能Key words
CeO2 cladding/co-precipitation method/LiNi0.5Mn1.5O4/electrochemical properties分类
信息技术与安全科学引用本文复制引用
董怡辰,王振波..不同比例CeO2包覆LNMO材料的电化学性能研究[J].电源技术,2024,48(5):843-849,7.基金项目
内蒙古自治区2023年度教育科学规划课题(NZJGH2023001) （NZJGH2023001）
