Li2O-B2O3-Li2SO4 modified LiNi1/3Co1/3Mn1/3O2 cathode material for enhanced electrochemical performance
Lv, DD (Lv, Dingding); Wang, L (Wang, Lei); Hu, PF (Hu, Pengfei); Sun, ZP (Sun, Zhipeng); Chen, ZY (Chen, Zhaoyang); Zhang, QB (Zhang, Qibing); Cheng, WH (Cheng, Wenhua); Ren, W (Ren, Wei); Bian, L (Bian, Liang); Xu, JB (Xu, Jinbao); Chang, AM (Chang, Aimin)
2017
发表期刊ELECTROCHIMICA ACTA
ISSN0013-4686
卷号247期号:9页码:803-811
摘要

A poor performance of the ternary cathode material, LiNi1/3Co1/3Mn1/3O2, at rate capability and low temperature, limits its further application, in electronic markets. Some of the previous research works report that surface modification of cathode materials can enhance their cycle stability. In the current work, (42.5-x) Li2O: 57.5B(2)O(3): xLi(2)SO(4) modified LiNi1/3Co1/3Mn1/3O2, cathode materials are prepared via the solution method followed by heat-treatment at 500 degrees C. The lithium fast ion conductors (42.5-x) Li2O: 57.5B(2)O(3): xLi(2)SO(4) provide a stable surface protection for LiNi1/3Co1/3Mn1/3O2,. The results indicate that (42.5-x) Li2O: 57.5B(2)O(3): xLi(2)SO(4) modified LiNi1/3Co1/3Mn1/3O2, exhibits enhanced electrochemical performance at high rates and low temperatures. (42.5-x) Li2O: 57.5B(2)O(3): xLi(2)SO(4) (x = 10) modified LiNi1/3Co1/3Mn1/3O2 samples increase the discharge capacity retention of LiNi1/3Co1/3Mn1/3O2, from 33.4% to 85.3% at the rate of 1C and from 48.6% to 70.0% at -20 degrees C. The high resolution transmission electron microscopy and scanning electron microscopy confirm the existence of a thin Li2O-B2O3-Li2SO4 coating layer (about 10 nm) on the original structure of LiNi1/3Co1/3Mn1/3O2,. The cyclic voltammetry and electrochemical impedance spectroscopy test results demonstrate that the presence of LBO-S coating reduces the interfacial resistance towards lithium ion migration.

关键词Lithium Nickel Cobalt Manganese Oxide Lithium Fast Ion Conductors Surface Modification Solid Electrolyte Interphase Lithium-ion Batteries
DOI10.1016/j.electacta.2017.07.068
收录类别SCI
WOS记录号WOS:000408582300086
引用统计
被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/5489
专题中国科学院特殊环境功能材料与器件重点试验室
材料物理与化学研究室
通讯作者Wang, L (Wang, Lei); Chen, ZY (Chen, Zhaoyang)
作者单位1.Chinese Acad Sci, Key Lab Funct Mat & Devices Special Environm, Xinjiang Key Lab Elect Informat Mat & Devices, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Shanghai Univ, Lab Microstruct, Shanghai 200444, Peoples R China
4.Xinjiang Univ, Key Lab Energy Mat Chem, Minist Educ, Inst Appl Chem,Sch Phys Sci & Technol, Urumqi 830046, Peoples R China
5.South West Univ Sci & Technol, Key Lab Solid Waste Treatment & Resource Recycle, Minist Educ, Mianyang 621010, Peoples R China
6.Hebei GEO Univ, Inst Gem & Mat Technol, Shijiazhuang 050000, Hebei, Peoples R China
推荐引用方式
GB/T 7714
Lv, DD ,Wang, L ,Hu, PF ,et al. Li2O-B2O3-Li2SO4 modified LiNi1/3Co1/3Mn1/3O2 cathode material for enhanced electrochemical performance[J]. ELECTROCHIMICA ACTA,2017,247(9):803-811.
APA Lv, DD .,Wang, L .,Hu, PF .,Sun, ZP .,Chen, ZY .,...&Chang, AM .(2017).Li2O-B2O3-Li2SO4 modified LiNi1/3Co1/3Mn1/3O2 cathode material for enhanced electrochemical performance.ELECTROCHIMICA ACTA,247(9),803-811.
MLA Lv, DD ,et al."Li2O-B2O3-Li2SO4 modified LiNi1/3Co1/3Mn1/3O2 cathode material for enhanced electrochemical performance".ELECTROCHIMICA ACTA 247.9(2017):803-811.
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