摘要
近年来,锂离子电池(LIB)成为了便携式电子产品和电动汽车(EV)中不可或缺的一部分。LiNi0.5 Mn1.5 O4(镍锰酸锂简称LNMO)作为正极材料,由于其能量密度可观(650 W·h·kg^(-1))、工作电压高(4.7 V)、原材料成本低和安全性能好受到广泛关注。然而,LNMO正极目前存在高温下循环性能差和容量下降的问题。表面包覆技术被认为是一种前景极佳的解决方案。本文从包覆材料以及包覆方法上总结了目前LNMO正极包覆领域的研究进展。
In recent years,lithium-ion batteries have become an integral part of portable electronics and electric vehicles.LiNi0.5Mn1.5O4(LiNi0.5Mn1.5O4),as a positive material,has attracted much attention due to its high energy density(650 W·h·kg^(-1)),high operating voltage(4.7 V),low manufacturing cost and good security.However,the LNMO positive electrode has the problems of poor cycling performance and capacity degradation at high temperature.Surface coating technology is considered to be a promising solution system.In this paper,the research progress of LNMO cathode coating is reviewed from the as-pects of coating materials and methods.
作者
王正午
张琦
梁祯
黄忆雪
周忠仁
董鹏
张英杰
张雁南
WANG Zheng-wu;ZHANG Qi;LIANG Zhen;HUANG Yi-xue;ZHOU Zhong-ren;DONG Peng;ZHANG Ying-jie;ZHANG Yan-nan
出处
《有色设备》
2023年第1期86-89,共4页
Nonferrous Metallurgical Equipment
基金
国家自然科学基金(52164031)
昆明理工大学“双一流”科技专项(202202AG050003,202101BE070001-003)
云南省基础研究项目-青年项目(202101AU070048)。
