Journal
JOURNAL OF POWER SOURCES
Volume 246, Issue -, Pages 417-422Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2013.07.110
Keywords
Lithium metavanadate; Chemical diffusion coefficient; Cathode; Lithium ion battery
Funding
- National Science and Technology Support Program [2012BAK30B04]
- Key Science and Technology Innovation Team of Zhejiang Province [2010R50013]
Ask authors/readers for more resources
LiVO3 materials are synthesized by combustion method with oxalic acid as fuel. Owing to its relatively low crystallization and small particle size, the LiVO3 calcined at 450 degrees C for 2 h displays optimal electrochemical performances, delivering a high discharge capacity of 298.4 mAh g(-1) and 262.5 mAh g(-1) between 1.0 and 3.5 V at a current density of 50 mA g(-1) and 500 mA g(-1) respectively, and exhibiting good cyclic stability. In this work, the chemical diffusion coefficient of Li+ (DLi+) in the LiVO3 electrode is determined by electrochemical impedance spectroscopy (EIS) and galvanostatic intermittent titration technique (GITT). The value calculated by EIS is in the range of 10(-9)-10(-8) cm(2) s(-1), while it calculated by GITT is 10(-95)-10(-8) cm(2) s(-1). (C) 2013 Elsevier B.V. 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