Enhanced Electrochemical Capability of LiNi1/3Co1/3Mn1/3O2 Cathode Materials Coated with Fluoroborate Glass for Lithium-Ion Batteries
Zhang, QB (Zhang, Qibing); Wang, L (Wang, Lei); Zhu, CH (Zhu, Chunhua); Sun, ZP (Sun, Zhipeng); Cheng, WH (Cheng, Wenhua); Lv, DD (Lv, Dingding); Ren, W (Ren, Wei); Bian, L (Bian, Liang); Xu, JB (Xu, Jinbao); Chang, AM (Chang, Aimin)
2017
Source PublicationCHEMELECTROCHEM
ISSN2196-0216
Volume4Issue:5Pages:1199-1204
Abstract

A LiNi1/3Co1/3Mn1/3O2 (NCM) cathode material is coated with fluoroborate glass (xLi(2)O-yB(2)O(3)-zLiF) to improve the electro-chemical performance of lithium-ion batteries. An xLi(2)O-yB(2)O(3)zLiF layer was successfully coated onto the surface of NCM by using a solution-phase method. The resulting materials are characterized by using X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The xLi(2)OyB(2)O(3)- zLiF-coated NCM exhibits a superior discharge capacity, rate capability, and cycling stability than those of the uncoated material. Notably, the initial discharge capacity of bare and 2Li(2) O-B2O3-LiF-coated NCM were 182.1 and 207.5 mAhg(-1), respectively, in the voltage range from 2.5 to 4.5 V. At a rate of 5C, the discharge capacity of Li2O-B2O3-LiF-coated NCM is 144.4 mAhg(-1), whereas that of bare NCM is 76.7 mAhg(-1). After 50 cycles at a rate of 0.2C, the capacity retentions of Li2O-B2O3LiF-, 2Li(2)O-B2O3-LiF-, Li2O-2B(2)O(3)-LiF-, and Li2O-B2O3-2LiF-coated NCM are 96.8, 97.2, 95.6, and 95.2%, respectively, whereas the capacity retention of bare NCM is 81.4%. Cyclic voltammetry and electrochemical impedance spectroscopy results indicate that the xLi(2)O-yB(2)O(3)-zLiF coating reduces electrode polarization and decreases charge-transfer resistance at the electrolyte-electrode interface, further improving the electrochemical activity of the NCM cathode material.

KeywordElectrochemical Capability Fluoroborate Glass Lini1/ 3co1/ 3mn1/ 3o2 Cathode Material Lithium-ion Batteries
DOI10.1002/celc.201600828
Indexed BySCI
WOS IDWOS:000404604300032
Citation statistics
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/5059
Collection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
Corresponding AuthorWang, L (Wang, Lei)
Affiliation1.Xinjiang Univ, Key Lab Energy Mat Chem, Sch Phys Sci & Technol, Minist Educ,Inst Appl Chem, Urumqi 830046, Peoples R China
2.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Xinjiang Key Lab Elect Informat Mat & Devices, Key Lab Funct Mat & Devices Special Environm, Urumqi 830011, Peoples R China
3.Hebei GEO Univ, Inst Gem & Mat Technol, Shijiazhuang 050000, Hebei, Peoples R China
4.South West Univ Sci & Technol, Minist Educ, Key Lab Solid Waste Treatment & Resource Recycle, Mianyang 621010, Sichuan, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang, QB ,Wang, L ,Zhu, CH ,et al. Enhanced Electrochemical Capability of LiNi1/3Co1/3Mn1/3O2 Cathode Materials Coated with Fluoroborate Glass for Lithium-Ion Batteries[J]. CHEMELECTROCHEM,2017,4(5):1199-1204.
APA Zhang, QB .,Wang, L .,Zhu, CH .,Sun, ZP .,Cheng, WH .,...&Chang, AM .(2017).Enhanced Electrochemical Capability of LiNi1/3Co1/3Mn1/3O2 Cathode Materials Coated with Fluoroborate Glass for Lithium-Ion Batteries.CHEMELECTROCHEM,4(5),1199-1204.
MLA Zhang, QB ,et al."Enhanced Electrochemical Capability of LiNi1/3Co1/3Mn1/3O2 Cathode Materials Coated with Fluoroborate Glass for Lithium-Ion Batteries".CHEMELECTROCHEM 4.5(2017):1199-1204.
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