|本期目录/Table of Contents|

[1]赵周桥,胡　朴,潘冰冰,等.Na+掺杂对LiNi1/3Co1/3Mn1/3O2结构和电化学性质的影响[J].武汉工程大学学报,2021,43(04):402-406.[doi:10.19843/j.cnki.CN42-1779/TQ.202011016]
　ZHAO Zhouqiao,HU Pu,PAN Bingbing,et al.Effects of Sodium Ion Doping on Structure and Electrochemical Properties of LiNi1/3Co1/3Mn1/3O2[J].Journal of Wuhan Institute of Technology,2021,43(04):402-406.[doi:10.19843/j.cnki.CN42-1779/TQ.202011016]
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Na+掺杂对LiNi1/3Co1/3Mn1/3O2结构和电化学性质的影响(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
43
期数:
2021年04期
页码:
402-406
栏目:
材料科学与工程
出版日期:
2021-08-31

文章信息/Info

Title:
Effects of Sodium Ion Doping on Structure and Electrochemical Properties of LiNi1/3Co1/3Mn1/3O2
文章编号:
1674 - 2869（2021）04 - 0402 - 05
作者:
赵周桥; 胡　朴; 潘冰冰; 窦林涛; 邹义琪; 张占辉*
武汉工程大学材料科学与工程学院，湖北 武汉 430205
Author(s):
ZHAO Zhouqiao; HU Pu; PAN Bingbing; DOU Lintao; ZOU Yiqi; ZHANG Zhanhui*
School of Materials and Engineering，Wuhan Institute of Technology，Wuhan 430205，China
关键词:
LiNi1/3Co1/3Mn1/3O2; 掺杂; 正极材料; 锂离子电池
Keywords:
LiNi1/3Co1/3Mn1/3Mn1/3O2;  doping;  cathode material;  lithium ion battery
分类号:
O646
DOI:
10.19843/j.cnki.CN42-1779/TQ.202011016
文献标志码:
A
摘要:
采用高温固相法成功制备了不同Na+掺杂浓度的Li1-xNaxNi1/3Co1/3Mn1/3O2锂离子电池正极材料，探究了Na元素掺杂对层状氧化物正极材料结构以及电化学性能的影响。通过X射线粉末衍射仪和扫描电子显微镜表征了材料的结构和形貌，结果表明，当x≤0.3时，样品不会出现其它杂相；当x＞0.3时，样品中会出现NaNi1/3Co1/3Mn1/3O2的杂相。同时随着掺杂浓度的增加，样品的阳离子混排度逐渐增加。电化学性能结果表明，少量Na+的掺入可以提高LiNi1/3Co1/3Mn1/3O2在0.2C，0.5C下的放电比容量并增强其循环稳定性，但会损坏材料的倍率性能。
Abstract:
Cathode material Li1-xNaxNi1/3Co1/3Mn1/3O2 for lithium ion battery with different doping concentrations were successfully prepared by high temperature solid-state method. Effects of sodium doping on the structure and electrochemical properties of layered oxide cathode materials were investigated. The structure and morphology of the material were characterized by powder X-ray diffraction and scanning electron microscopy. The results indicate that no impurity is observed when x≤0.3，while NaNi1/3Co1/3Mn1/3O2 is found in the sample when x＞0.3. Moreover，the cation mixing degree of the samples increases gradually with the increase of doping concentration. The electrochemical performance results show that the low doping concentration can improve the discharge specific capacity and cycle stability of LiNi1/3Co1/3Mn1/3O2 at 0.2C and 0.5C，but decreases the rate capacity of the material.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：2020-11-10基金项目：武汉工程大学第十一届研究生教育创新基金（CX2019066）作者简介：赵周桥，硕士研究生。E-mail：[email protected]*通讯作者：张占辉，博士，教授。E-mail：[email protected]引文格式：赵周桥，胡朴，潘冰冰，等. Na+掺杂对LiNi1/3Co1/3Mn1/3O2结构和电化学性质的影响［J］. 武汉工程大学学报，2021，43（4）：402-406.
更新日期/Last Update: 2021-08-07