Journal
ELECTROCHIMICA ACTA
Volume 81, Issue -, Pages 233-238Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2012.07.069
Keywords
Lithium ion batteries; Cathode; Composites; Electrochemical performances
Categories
Funding
- FJPYT [2009HZ0004-1]
- FJIRSM fund [SZD08002-3, SZD09003-1, 2010KL002]
Ask authors/readers for more resources
Composites Li[LixNi0.34-xMn0.47Co0.19]O-2 (0.18 <= x <= 0.21) were prepared by a solid state reaction method assisted with co-precipitating. The chemical composition, structure, morphology, and specific surface area of as-prepared composites were systematically characterized by ICP, XRD, SEM. and BET, respectively. The electrochemical performances of the composites were evaluated as high-voltage cathode for lithium-ion batteries. Among all the composites, sample SN exhibited a best electrochemical performance. Except for the initial decay, no obvious capacity fading was observed after cycling 30 cycles at different rates. The discharge capacities were maintained steadily as the current density increased up to 500 mA g(-1). The improved electrochemical performance of sample SN was attributed to the compromise effect between the increased Li2MnO3 phase and the enhanced Li/Ni disorder. (c) 2012 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