Excellent Temperature Performance of Spherical LiFePO4C Composites Modified with Composite Carbon and Metal Oxides
Joint Authors
Zhang, Bao
Zeng, Tao
Zhang, Jiafeng
Peng, Chunli
Zheng, Junchao
Chen, Guomin
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-01-09
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
Nanosized spherical LiFePO4/C composite was synthesized from nanosized spherical FePO4·2H2O, Li2C2O4, aluminum oxide, titanium oxide, oxalic acid, and sucrose by binary sintering process.
The phases and morphologies of LiFePO4/C were characterized using SEM, TEM, CV, EIS, EDS, and EDX as well as charging and discharging measurements.
The results showed that the as-prepared LiFePO4/C composite with good conductive webs from nanosized spherical FePO4·2H2O exhibits excellent electrochemical performances, delivering an initial discharge capacity of 161.7 mAh·g−1 at a 0.1 C rate, 152.4 mAh·g−1 at a 1 C rate and 131.7 mAh·g−1 at a 5 C rate, and the capacity retention of 99.1%, 98.7%, and 95.8%, respectively, after 50 cycles.
Meanwhile, the high and low temperature performance is excellent for 18650 battery, maintaining capacity retention of 101.7%, 95.0%, 88.3%, and 79.3% at 55°C, 0°C, −10°C, and −20°C by comparison withthat of room temperature (25°C) at the 0.5 C rate over a voltage range of 2.2 V to 3.6 V, respectively.
American Psychological Association (APA)
Zhang, Bao& Zeng, Tao& Zhang, Jiafeng& Peng, Chunli& Zheng, Junchao& Chen, Guomin. 2014. Excellent Temperature Performance of Spherical LiFePO4C Composites Modified with Composite Carbon and Metal Oxides. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-1049339
Modern Language Association (MLA)
Zhang, Bao…[et al.]. Excellent Temperature Performance of Spherical LiFePO4C Composites Modified with Composite Carbon and Metal Oxides. The Scientific World Journal No. 2014 (2014), pp.1-6.
https://search.emarefa.net/detail/BIM-1049339
American Medical Association (AMA)
Zhang, Bao& Zeng, Tao& Zhang, Jiafeng& Peng, Chunli& Zheng, Junchao& Chen, Guomin. Excellent Temperature Performance of Spherical LiFePO4C Composites Modified with Composite Carbon and Metal Oxides. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-1049339
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1049339