Journal
ELECTROCHIMICA ACTA
Volume 113, Issue -, Pages 505-513Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2013.09.130
Keywords
Lithium ion battery; SnSb/MCMB; Core shell; Anode materials
Categories
Funding
- National Natural Science Foundation of China [51101062, 51171065]
- Science and Technology Project of Guangzhou City, China [2011J4100075]
- Foundation for Distinguished Young Talents in Higher Education of Guangdong, China [LYM09052]
- Extracurricular Science Foundation for Students of South China Normal University, China [13WDGB02]
Ask authors/readers for more resources
A novel multi-step design of spherical nano-SnSb/MCMB/carbon core-shell composite for high stability and long life lithium battery electrodes has been introduced. The core-shell composite was successfully synthesized via co-precipitation and subsequent pyrolysis. The resultant composite sphere consisted of nanosized SnSb alloy and mesophase carbon microbeads (MCMB, 10 mu m) embedded in a carbon matrix pyrolyzed from glucose and petroleum pitch, in which the MCMB was treated to be the inner core to offer mechanical support and efficient electron conducting pathway. The composite material exhibited a unique stability with a retention discharge capacity rate of 83.52% with reversible capacity of 422.5 mAh g(-1) after 100 cycles and a high initial coulombic efficiency of 83.53%. The enhanced electrochemical performance is attributed to the structural stability of the composite sphere during the charging-discharging process. (C) 2013 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available