材料科学
涂层
阴极
电解质
电化学
腐蚀
氧化物
氧化铈
化学工程
电池(电)
离子
蒸馏水
纳米技术
冶金
化学
电极
功率(物理)
物理
有机化学
物理化学
量子力学
色谱法
工程类
作者
Muhammad Fakhrudin,Evvy Kartini,Anne Zulfia
标识
DOI:10.1016/j.mee.2024.112169
摘要
The high energy density layered oxide LiNi0.8Mn0.1Co0.1O2 (NMC811) holds great promise as a cathode material for future Li-ion batteries. However, its application in electric vehicles is hindered by issues such as inadequate cycle performance and rate capability. Additionally, the corrosion caused by the electrolyte poses limitations on high voltage operation. In this study, Cerium Oxide (CeO2) was used to coat NMC811 using wet chemical method followed by heat treatment. Distilled water was used to dissolve Ce salt instead of ethanol so that it can reduce coating costs and is more environmentally friendly. XRD analysis showed no significant change in the hexagonal crystal structure of NMC811 material but the appearance of small CeO2 peaks in patterns. Electrochemical test of CeO2 coated NMC811 exhibited 18% and 9% higher cyclic and rate performance, respectively in comparison to pristine material.
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