ZnO Interface Modified LiNi_(0.6)Co_(0.2)Mn_(0.2)O_(2)Toward Boosting Lithium Storage

作     者：Yunyan Li Xifei Li Junhua Hu Wen Liu Hirbod Maleki Kheimeh Sari Dejun Li Qian Sun Liang Kou Zhanyuan Tian Le Shao Cheng Zhang Jiujun Zhang Xueliang Sun Yunyan Li;Xifei Li;Junhua Hu;Wen Liu;Hirbod Maleki Kheimeh Sari;Dejun Li;Qian Sun;Liang Kou;Zhanyuan Tian;Le Shao;Cheng Zhang;Jiujun Zhang;Xueliang Sun

作者机构：Tianjin International Joint Research Center of Surface Technology for Energy Storage MaterialsEnergy&Materials Engineering CenterCollege of Physics and Materials ScienceTianjin Normal UniversityTianjin 300387China Xi’an Key Laboratory of New Energy Materials and DevicesInstitute of Advanced Electrochemical Energy&School of Materials Science and EngineeringXi’an University of TechnologyXi’an 710048Shaanxi China State Center for International Cooperation on Designer Low-carbon&Environmental Materials(CDLCEM)Zhengzhou University100 Kexue AvenueZhengzhou 450001China Department of Mechanical and Materials EngineeringUniversity of Western OntarioLondonOntario N6A 5B9Canada Shaanxi Coal Chem Ind Technol Res Inst Co LtdXian Shaanxi 710070China Department of ChemistryCollege of Sciences/Institute for Sustainable EnergyShanghai UniversityShanghai 200444China 

出 版 物：《Energy & Environmental Materials》 (能源与环境材料（英文）)

年 卷 期：2020年第3卷第4期

页      面：522-528页

核心收录：

学科分类：081702[工学-化学工艺] 0808[工学-电气工程] 08[工学] 0817[工学-化学工程与技术] 

基　　金：supported by the Natural Science Basic Research Plan in Shaanxi Province of China(2019JLP-04) the National Natural Science Foundation of China(51672189) Xi’an Science and Technology Project of China(201805037YD15CG21(20)) Tianjin Science and Technology Project(18PTZWHZ00020) 

主　　题：cathode materials LiNi_(0.6)Co_(0.2)Mn_(0.2)O_(2) lithium-ion batteries ZnO coating 

摘      要：In this work,an amorphous ZnO was coated on LiNi_(0.6)Co_(0.2)Mn_(0.2)O_(2)(NCM)using a sol-gel strategy *** NCM coated with 1 wt.%Zn O and a thickness of about 3 nm exhibits an improved cycling performance,accompanied by a lower capacity fading(from 194.8 to 133.8 m Ah g^(-1),i.e.,68%)than that of the pristine one(i.e.,only 34%)after 300 cycles at 0.2 *** cyclic voltammetry(CV)and electrochemical impedance spectroscopy(EIS)indicate that the Zn O coating can improve extraction/insertion of Li+and inhibit the increase in impedance of the NCM cathode *** approach may benefit the performance improvement of the Ni-rich cathode materials in Lithium-ion batteries(LIBs).