XJIPC OpenIR  > 材料物理与化学研究室
Uniform core-shell Cu6Sn5@C nanospheres with controllable synthesis and excellent lithium storage performances
Su, LW (Su, Liwei); Fu, JH (Fu, Jianghao); Zhang, PJ (Zhang, Pinjie); Wang, LB (Wang, Lianbang); Wang, YH (Wang, Yuanhao); Ren, MM (Ren, Manman)
2017
Source PublicationRSC ADVANCES
Volume7Issue:45Pages:28399-28406
Abstract

Metallic tin (Sn) is one of the most promising alternatives to graphite anodes for lithium ion batteries due to its higher theoretical capacity, higher packing density and safer thermodynamic potential, while the huge volume transformation during repeated cycling leads to rapid pulverization and consequently poor capacity retention. This work provides an easy-to-control method to prepare uniform core-shell Cu6Sn5@C nanospheres in which Cu@Sn cores (40-50 nm in diameter) are well encapsulated by PANI-derived carbon layers with a thickness of similar to 5 nm. The obtained Cu6Sn5@C exhibits an excellent cycling ability and good rate capabilities. Both the reversible capacity (518 mA h g(-1)) after 100 cycles and the initial coulombic efficiency (89.2%) are the highest values in Cu6Sn5-based materials. The impressive cycling performance is believed to result from the carbon coating that not only prevents particle agglomeration during the synthesis but also accommodates the vast structural transformation of the Cu6Sn5 nanocores during the electrochemical (de)lithiation process, so ensuring good ionic and electronic transport to the core. The effect of synthesis conditions on the composition are also investigated systematically.

DOI10.1039/c7ra02214j
Indexed BySCI
WOS IDWOS:000402999300053
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/5096
Collection材料物理与化学研究室
Affiliation1.Zhejiang Univ Technol, Coll Chem Engn, State Key Lab Breeding Base Green Chem Synth Tech, Hangzhou 310014, Zhejiang, Peoples R China
2.Juhua Grp Technol Ctr, Quzhou 324004, Peoples R China
3.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China
4.Qilu Univ Technol, Inst Mat Sci & Engn, Jinan 250353, Peoples R China
Recommended Citation
GB/T 7714
Su, LW ,Fu, JH ,Zhang, PJ ,et al. Uniform core-shell Cu6Sn5@C nanospheres with controllable synthesis and excellent lithium storage performances[J]. RSC ADVANCES,2017,7(45):28399-28406.
APA Su, LW ,Fu, JH ,Zhang, PJ ,Wang, LB ,Wang, YH ,&Ren, MM .(2017).Uniform core-shell Cu6Sn5@C nanospheres with controllable synthesis and excellent lithium storage performances.RSC ADVANCES,7(45),28399-28406.
MLA Su, LW ,et al."Uniform core-shell Cu6Sn5@C nanospheres with controllable synthesis and excellent lithium storage performances".RSC ADVANCES 7.45(2017):28399-28406.
Files in This Item:
File Name/Size DocType Version Access License
Uniform core-shell C(2589KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Su, LW (Su, Liwei)]'s Articles
[Fu, JH (Fu, Jianghao)]'s Articles
[Zhang, PJ (Zhang, Pinjie)]'s Articles
Baidu academic
Similar articles in Baidu academic
[Su, LW (Su, Liwei)]'s Articles
[Fu, JH (Fu, Jianghao)]'s Articles
[Zhang, PJ (Zhang, Pinjie)]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Su, LW (Su, Liwei)]'s Articles
[Fu, JH (Fu, Jianghao)]'s Articles
[Zhang, PJ (Zhang, Pinjie)]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Uniform core-shell Cu6Sn5@C nanospheres with controllable synthesis and excellent lithium storage performances.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.