典型文献
In-situ formation of Li0.5Mn0.5O coating layer through defect controlling for high performance Li-rich manganese-based cathode material
文献摘要：
Li-rich layered oxide of Li1.2Mn0.6Ni0.2O2(LMNO)with a considerable specific capacity and higher voltage is regarded as a kind of promising cathode material.However,it suffers from transition metal ion disso-lution and oxygen escape that leads to rapid capacity decay.In addition,the poor lithium-ion diffusion kinetics gives rise to unsatisfied rate performance.Herein,a stable layer of Li0.5Mn0.5O(LMO)out of LMNO is in-situ constructed through acetic passivation and following calcination process.The generated defect structure in the composite material exhibits fast ion diffusion kinetics and the produced LMO layer can stabilize the substructure,resulting in elevated cycling stability and rate performance.In specific,the LMNO@LMO material exhibits a high initial coulombic efficiency of 80.3％and remarkable capacity reten-tion of 80.7％after 200 cycles at 1 C.Besides,the composite material reveals prominent rate performance that delivers discharge capacities of 158 and 131 mAh g-1 at 5 and 10 C,respectively.At last,this study presents a new approach to optimizing the Li-rich cathode materials.
文献关键词：
中图分类号：
作者姓名：
Aipeng Zhu;Qin Wang;Yin Zhang;Yueyin Zhang;Xiaogang He;Kaipeng Wu;Hao Wu;Qian Wang;Wenlong Cai;Yun Zhang
作者机构：
Department of Advanced Energy Materials,College of Materials Science and Engineering,Sichuan University,Chengdu 610064,Sichuan,China;Engineering Research Center of Alternative Energy Materials&Devices,Ministry of Education,Sichuan University,Chengdu 610064,Sichuan,China
文献出处：
引用格式：
[1]Aipeng Zhu;Qin Wang;Yin Zhang;Yueyin Zhang;Xiaogang He;Kaipeng Wu;Hao Wu;Qian Wang;Wenlong Cai;Yun Zhang-.In-situ formation of Li0.5Mn0.5O coating layer through defect controlling for high performance Li-rich manganese-based cathode material)[J].能源化学,2022(08):384-391
A类：
LMNO
B类：
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AB值：
0.599395
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