Effects of La2O3/Li2O/TiO2-Coating on Electrochemical Performance of LiCoO2 Cathode

被引：0
|
作者：
王洪 [1 ]
祝纶宇 [2 ]
陈鸣才 [2 ]
机构：
[1] Key Laboratory of Polymer for Electronics, Guangdong Province, Guangzhou Institute of Chemistry, Chinese Academy of Sciences,Guangzhou 510650, China,Department of Chemistry and Chemical Engineering, Mianyang Normal University, Mianyang 621000, China 
来源：
JournalofRareEarths | 2007年 / 01期
关键词：
D O I：
暂无
中图分类号：
O614.331 [];
学科分类号：
070301 ; 081704 ;
摘要：
Conventional cathode material (LiCoO2) was modified by coating with a thin layer of La2O3/Li2O/TiO2 for improving its performance for lithium ion battery. The morphology and structure of the modified cathode material was characterized by SEM, XRD, and Auger electron spectroscopy. The performance of the cells with the modified cathode material was examined, including the cycling stability, the diffusion coefficient under different voltages, and the C-rate discharge. The results showed that the cell composed of the coated cathode material discharged at a large current density, and possesses a stable cycle performance in the range from 3.0 to 4.4 V. It was explained that the rate of Li ion diffusion increased in the cell while using La2O3/Li2O/TiO2-coated LiCoO2 as the cathode and the coating layer may act as a faster ion conductor (La2O3/Li2O/TiO2).
引用
收藏
页码：124 / 128
页数：5
相关论文
共 50 条
  • [1] Effects of La2O3/Li2O/TiO2-coating on electrochemical performance of LiCoO2 cathode
    Hong, Wang
    Zhu Lunyu
    Chen Mingcai
    JOURNAL OF RARE EARTHS, 2007, 25 (01) : 124 - 128
  • [2] Effects of SrO/Li2O/La2O3/Ta2O5/TiO2-coating on electrochemical performance of LiCoO2
    Wang Hong
    Deng Zhangqiong
    Chen Mingcai
    JOURNAL OF RARE EARTHS, 2009, 27 (02) : 234 - 239
  • [3] Effects of SrO/Li2O/La2O3/Ta2O5/TiO2-coating on electrochemical performance of LiCoO2
    王洪
    邓璋琼
    陈鸣才
    Journal of Rare Earths, 2009, 27 (02) : 234 - 239
  • [4] Electrochemical Performance of La2O3/Li2O/TiO2 Nano-Particle Coated Cathode Material LiFePO4
    Wang, Hong
    Yang, Chi
    Liu, Shu-Xin
    JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2014, 14 (09) : 6880 - 6884
  • [5] Structural and Electrochemical Studies of La2O3 Coated LiCoO2 Particles
    Rao, Bhuvanagiri Nageswara
    Narsimulu, Daulatabad
    Rao, Annavarapu Tirupathi
    Madhusudhanrao, Vallabhaneni
    Satyanarayana, Nallani
    TRANSACTIONS OF THE INDIAN CERAMIC SOCIETY, 2020, 79 (03) : 120 - 124
  • [6] Ultrathin TiO2 Coating on LiCoO2 for Improved Electrochemical Performance as Li-Ion Battery Cathode
    Jayasree, Silpasree S.
    Nair, Shantikumar
    Santhanagopalan, Dhamodaran
    CHEMISTRYSELECT, 2018, 3 (10): : 2763 - 2766
  • [7] Electrochemical Performance of La2O3/TiO2 and Effects of Ball Milling
    Nava-Dino, C. G.
    Bautista-Margulis, R. G.
    Neri-Flores, M. A.
    Borunda-Terrazas, A.
    Lopez-Ocana, G.
    Mendez-Mariscal, N. L.
    Chacon-Nava, J. G.
    Martinez-Villafane, A.
    INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE, 2015, 10 (12): : 10781 - 10791
  • [8] Novel LiCoO2 cathode material with Al2O3 coating for a Li ion cell
    Cho, J
    Kim, YJ
    Park, B
    CHEMISTRY OF MATERIALS, 2000, 12 (12) : 3788 - 3791
  • [9] Effect of Al2O3 coating on electrochemical performance of LiCoO2 as cathode materials for secondary lithium batteries
    Oh, S
    Lee, JK
    Byun, D
    Cho, WI
    Cho, BW
    JOURNAL OF POWER SOURCES, 2004, 132 (1-2) : 249 - 255
  • [10] Solution mechanisms for Li2O in Sc2O3, Y2O3 and La2O3
    Chroneos, A
    Busker, G
    ACTA CHIMICA SLOVENICA, 2005, 52 (04) : 417 - 421
12345