F-doped LiFePO4@N/B/F-doped carbon as high performance cathode materials for Li-ion batteries
Meng, Yanshuang1,3; Li, Yuzhu1; Xia, Jun1; Hu, Qianru1; Ke, Xinyou2; Ren, Guofeng2; Zhu, Fuliang1,3
2019-05-15
发表期刊APPLIED SURFACE SCIENCE
ISSN0169-4332
卷号476页码:761-768
摘要LiFePO4 (LFP) is widely considered as a practical cathode material for lithium ion batteries, however its applications are still plagued by the low ionic and electronic conductivities. To address this challenge, F-doped LFP coated with N, B, F ternary doped carbon layer (F-LFP@NBFC) was synthesized by hydrothermal method using ionic liquid [BMIM]BF4 as the sole source for C, N, B and F. The F-LFP@NBFC exhibits superior electrochemical performance compared with the pristine LFP. F-LFP@NBFC demonstrates a discharge capacity of 162.2 mAh g(-1) at 0.1 C, which is close to its theoretical capacity, and maintains a 100% of discharge capacity after 40 cycles at 0.1 C. F-LFP@NBFC also shows an excellent rate capability and delivers a discharge capacity of 71.3 mAh g(-1) at 15 C. The excellent performance is ascribed to the surface coating of LFP and heteroatom doping into the carbon and LFP. On one hand, the N, B, F ternary doped carbon film acts as conducive network for LFP particles, improves the electronic conductivity of electrode particle and consequently enhances the Li+/Li-0 reduced/oxidized kinetics. On the other hand, the crystal lattice of LFP is enlarged by the F doping, which facilitates the Li+ intercalation/deintercalation. This study provides a convenient approach to prepare a high performance cathode material for lithium ion batteries.
关键词F-doped LiFePO4 N, B, F-doped carbon Ionic liquids Electrode modification Lithium-ion batteries
DOI10.1016/j.apsusc.2019.01.139
收录类别SCI ; SCIE
语种英语
资助项目Foundation for Innovation Groups of Basic Research in Gansu Province[1606RJIA322]
WOS研究方向Chemistry ; Materials Science ; Physics
WOS类目Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
WOS记录号WOS:000459458600092
出版者ELSEVIER SCIENCE BV
EI入藏号20190506434966
EI主题词Lithium-ion batteries
EI分类号701.1 Electricity: Basic Concepts and Phenomena - 712.1 Semiconducting Materials - 804 Chemical Products Generally - 813.2 Coating Materials
引用统计
被引频次:45[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符https://ir.lut.edu.cn/handle/2XXMBERH/31863
专题材料科学与工程学院
通讯作者Ren, Guofeng; Zhu, Fuliang
作者单位1.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China;
2.Case Western Reserve Univ, Dept Mech & Aerosp Engn, Cleveland, OH 44106 USA;
3.State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
第一作者单位材料科学与工程学院
通讯作者单位材料科学与工程学院
第一作者的第一单位材料科学与工程学院
推荐引用方式
GB/T 7714
Meng, Yanshuang,Li, Yuzhu,Xia, Jun,et al. F-doped LiFePO4@N/B/F-doped carbon as high performance cathode materials for Li-ion batteries[J]. APPLIED SURFACE SCIENCE,2019,476:761-768.
APA Meng, Yanshuang.,Li, Yuzhu.,Xia, Jun.,Hu, Qianru.,Ke, Xinyou.,...&Zhu, Fuliang.(2019).F-doped LiFePO4@N/B/F-doped carbon as high performance cathode materials for Li-ion batteries.APPLIED SURFACE SCIENCE,476,761-768.
MLA Meng, Yanshuang,et al."F-doped LiFePO4@N/B/F-doped carbon as high performance cathode materials for Li-ion batteries".APPLIED SURFACE SCIENCE 476(2019):761-768.
条目包含的文件 下载所有文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Meng-2019-F-doped Li(2612KB)期刊论文出版稿开放获取CC BY-NC-SA浏览 下载
个性服务
查看访问统计
谷歌学术
谷歌学术中相似的文章
[Meng, Yanshuang]的文章
[Li, Yuzhu]的文章
[Xia, Jun]的文章
百度学术
百度学术中相似的文章
[Meng, Yanshuang]的文章
[Li, Yuzhu]的文章
[Xia, Jun]的文章
必应学术
必应学术中相似的文章
[Meng, Yanshuang]的文章
[Li, Yuzhu]的文章
[Xia, Jun]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Meng-2019-F-doped LiFePO4@N_B_F-doped carbon a.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。