Journal article 776 views
Electrochemical Behavior of Layered Vanadium Oxychloride in Rechargeable Lithium Ion Batteries
,
Le Zhang,
Thomas Diemant,
R. Jürgen Behm,
Maximilian Fichtner
Journal of The Electrochemical Society, Volume: 163, Issue: 10, Pages: A2326 - A2332
Swansea University Author:
Anji Munnangi
Full text not available from this repository: check for access using links below.
DOI (Published version): 10.1149/2.0851610jes
Abstract
Here, we report on the electrochemical behavior of layered VOCl material as potential electrode material in rechargeable lithium-ion batteries. Orthorhombic VOCl with a space group of Pmmn was synthesized via a solid-gas reaction. During electrochemical charge and discharge a combination of intercal...
| Published in: | Journal of The Electrochemical Society |
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| ISSN: | 0013-4651 1945-7111 |
| Published: |
The Electrochemical Society
2016
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| Online Access: |
Check full text
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa51581 |
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| Abstract: |
Here, we report on the electrochemical behavior of layered VOCl material as potential electrode material in rechargeable lithium-ion batteries. Orthorhombic VOCl with a space group of Pmmn was synthesized via a solid-gas reaction. During electrochemical charge and discharge a combination of intercalation and conversion reactions are proposed to take place based on the data collected from a variety of analytical methods such as X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS), X-ray absorption near edge spectroscopy (XANES), infrared spectroscopy (IR), Raman spectroscopy and electrochemical methods. The pseudocapacitive contribution to the Li+ storage was identified using a cyclic voltammetry (CV) technique. Charge and discharge tests showed that the VOCl electrode can deliver first discharge and recharge capacities of 1228 mAh g−1 and 759 mAh g−1 at a current density of 100 mA g−1, respectively. Even after 120 cycles at 260 mA g−1 a reversible capacity of 351 mAh g−1 can be obtained with a high coulombic efficiency (>98%). |
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| Keywords: |
anode, conversion reaction, Lithium ion battery, Vanadium oxychloride, VOCl |
| College: |
Faculty of Science and Engineering |
| Issue: |
10 |
| Start Page: |
A2326 |
| End Page: |
A2332 |