Facile synthesis, structure and electrochemical performance of RbV3O8/ketjenblack as cathode material for lithium-ion batteries
作者:Zhu, JZ (Zhu, Jianzhong)[ 1 ] ; Li, XL (Li, Xiaolong)[ 1 ] ; Chen, SY (Chen, Siyuan)[ 1 ] ; Huang, CM (Huang, Chunmao)[ 1 ] ; Feng, JJ (Feng, Jingjie)[ 1 ] ; Kuang, Q (Kuang, Quan)[ 1 ] ; Fan, QH (Fan, Qinghua)[ 1 ] ; Dong, YZ (Dong, Youzhong)[ 1 ] ; Zhao, YM (Zhao, Yanming)[ 1,2,3 ]
ELECTROCHIMICA ACTA
卷: 355
文献号: 136799
DOI: 10.1016/j.electacta.2020.136799
出版年: SEP 20 2020
文献类型:Article
摘要
Carbon-based composite RbV3O8/ketjenblack materials are successfully fabricated via a simple and environmental friendly synthesis procedure using relatively low temperature (180 degrees C) and air atmosphere, without the addition of hydrothermal route or acid solution. The phase identification and the effect of ketjenblack on the morphology of the samples are investigated by XRD, SEM and TEM images. The reversible specific capacities of RbV(3)O8/ketjenblack increase with increasing ketjenblack content and then decreasing with the ketjenblack content reaching 10%, and RbV3O8/ketjenblack 5% exhibiting the rela-tively complete RbV3O8 2D nanostructure coated with ketjenblack particles evenly present the excellent reversible specific capacity of 240.6 mA h g(-1) and good cycle performance. In situ XRD and ex situ XPS are utilized to reveal the electrochemical reaction mechanism of the RbV3O8/ketjenblack cathode ade-quately. (c) 2020 Elsevier Ltd. All rights reserved.
关键词
作者关键词:RbV3O8; Ketjenblack; Facile synthetic method; Li-ion batteries; Cathode
KeyWords Plus:POTENTIAL ANODE MATERIAL; COMPOSITE; NANOCOMPOSITE; NANOSHEETS; LI4TI5O12; BLACK
作者信息
通讯作者地址:
South China University of Technology South China Univ Technol, Sch Phys & Optoelect, Guangzhou 510641, Peoples R China.
通讯作者地址: Zhao, YM (通讯作者)
显示更多South China Univ Technol, Sch Phys & Optoelect, Guangzhou 510641, Peoples R China.
地址:
显示更多[ 1 ] South China Univ Technol, Sch Phys & Optoelect, Guangzhou 510641, Peoples R China
[ 2 ] South China Inst Collaborat Innovat, Dongguan 523808, Peoples R China
显示更多[ 3 ] South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510640, Peoples R China
电子邮件地址:zhaoym@scut.edu.cn
基金资助致谢
基金资助机构显示详情授权号
National Natural Science Foundation of China (NSFC)
51672086
Science and Technology Bureau of Guangdong Government
2017B030308005
Science and Technology Bureau from Dongguan Government
2019622163008
查看基金资助信息
出版商
PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
期刊信息
Impact Factor (影响因子): Journal Citation Reports
类别 / 分类
研究方向:Electrochemistry
Web of Science 类别:Electrochemistry