Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Synthesis and characterization of Li4Ti5O12/graphene composite as anode material with enhanced electrochemical performance

Synthesis and characterization of Li4Ti5O12/graphene composite as anode material with enhanced... The use of graphene as a conductive additive to enhance the rate capability and cycle stability of Li4Ti5O12 electrode material has been demonstrated. Li4Ti5O12 and its composite with graphene (1.86 wt%) are prepared by ball milling and simple chemical method, respectively. Among the as-synthesized composites, Li4Ti5O12 particles uniformly clung to the graphene sheets. When used as an electrode material for lithium ion battery, the composite presents excellent rate performance and high cyclic stability. It is found that the composite displayed high-rate capacity of 118.7 mAh g−1 at 20 C. Furthermore, the composite exhibits good cycle stability, retaining over 96 % of its initial capacity after 50 cycles at 10 C. The excellent electrochemical performance is attributed to a decrease in the charge-transfer resistance. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Ionics Springer Journals

Synthesis and characterization of Li4Ti5O12/graphene composite as anode material with enhanced electrochemical performance

Loading next page...
 
/lp/springer-journals/synthesis-and-characterization-of-li4ti5o12-graphene-composite-as-jbOlu004JF

References (31)

Publisher
Springer Journals
Copyright
Copyright © 2012 by Springer-Verlag Berlin Heidelberg
Subject
Chemistry; Electrochemistry; Renewable and Green Energy; Optical and Electronic Materials; Condensed Matter Physics; Energy Storage
ISSN
0947-7047
eISSN
1862-0760
DOI
10.1007/s11581-012-0813-x
Publisher site
See Article on Publisher Site

Abstract

The use of graphene as a conductive additive to enhance the rate capability and cycle stability of Li4Ti5O12 electrode material has been demonstrated. Li4Ti5O12 and its composite with graphene (1.86 wt%) are prepared by ball milling and simple chemical method, respectively. Among the as-synthesized composites, Li4Ti5O12 particles uniformly clung to the graphene sheets. When used as an electrode material for lithium ion battery, the composite presents excellent rate performance and high cyclic stability. It is found that the composite displayed high-rate capacity of 118.7 mAh g−1 at 20 C. Furthermore, the composite exhibits good cycle stability, retaining over 96 % of its initial capacity after 50 cycles at 10 C. The excellent electrochemical performance is attributed to a decrease in the charge-transfer resistance.

Journal

IonicsSpringer Journals

Published: Oct 16, 2012

There are no references for this article.