Synthesis of pristine and carbon-coated Li4Ti5O12 and their low-temperature electrochemical performance
Pristine and carbon-coated Li4Ti5O12 oxide electrodes are synthesized by a cellulose-assisted combustion technique with sucrose as organic carbon source and their low-temperature electrochemical performance as anodes for lithium-ion batteries are investigated. X-ray diffraction (XRD), infrared spect...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier SA
2010
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| Online Access: | http://hdl.handle.net/20.500.11937/13947 |
| _version_ | 1848748486297649152 |
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| author | Yuan, T. Yu, X. Cai, R. Zhou, Y. Shao, Zongping |
| author_facet | Yuan, T. Yu, X. Cai, R. Zhou, Y. Shao, Zongping |
| author_sort | Yuan, T. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Pristine and carbon-coated Li4Ti5O12 oxide electrodes are synthesized by a cellulose-assisted combustion technique with sucrose as organic carbon source and their low-temperature electrochemical performance as anodes for lithium-ion batteries are investigated. X-ray diffraction (XRD), infrared spectroscopy (IR), Raman spectroscopy, thermogravimetric analysis (TGA) and scanning electron microscopy (SEM) are applied to characterize the phase structure, composition, and morphology of the composites. It is found that the sequence of sucrose addition has significant effect on the phase formation of Li4Ti5O12. Carbon-coated Li4Ti5O12 is successfully prepared by coating the pre-crystallized Li4Ti5O12 phase with sucrose followed by thermal treatment. Electrochemical lithium insertion/extraction performance is evaluated by the galvanostatic charge/discharge tests, electrochemical impedance spectroscopy (EIS), and cyclic voltammetry (CV), from room temperature (25 °C) to -20 °C. The carbon-coated composite anode materials show improved lithium insertion/extraction capacity and electrode kinetics, especially at high rates and low temperature. Both of the two samples show fairly stable cycling performance at various temperatures, which is highly promising for practical applications in power sources of electric or electric-hybrid vehicles. © 2010 Elsevier B.V. All rights reserved. |
| first_indexed | 2025-11-14T07:05:48Z |
| format | Journal Article |
| id | curtin-20.500.11937-13947 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:05:48Z |
| publishDate | 2010 |
| publisher | Elsevier SA |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-139472017-09-13T15:01:41Z Synthesis of pristine and carbon-coated Li4Ti5O12 and their low-temperature electrochemical performance Yuan, T. Yu, X. Cai, R. Zhou, Y. Shao, Zongping Pristine and carbon-coated Li4Ti5O12 oxide electrodes are synthesized by a cellulose-assisted combustion technique with sucrose as organic carbon source and their low-temperature electrochemical performance as anodes for lithium-ion batteries are investigated. X-ray diffraction (XRD), infrared spectroscopy (IR), Raman spectroscopy, thermogravimetric analysis (TGA) and scanning electron microscopy (SEM) are applied to characterize the phase structure, composition, and morphology of the composites. It is found that the sequence of sucrose addition has significant effect on the phase formation of Li4Ti5O12. Carbon-coated Li4Ti5O12 is successfully prepared by coating the pre-crystallized Li4Ti5O12 phase with sucrose followed by thermal treatment. Electrochemical lithium insertion/extraction performance is evaluated by the galvanostatic charge/discharge tests, electrochemical impedance spectroscopy (EIS), and cyclic voltammetry (CV), from room temperature (25 °C) to -20 °C. The carbon-coated composite anode materials show improved lithium insertion/extraction capacity and electrode kinetics, especially at high rates and low temperature. Both of the two samples show fairly stable cycling performance at various temperatures, which is highly promising for practical applications in power sources of electric or electric-hybrid vehicles. © 2010 Elsevier B.V. All rights reserved. 2010 Journal Article http://hdl.handle.net/20.500.11937/13947 10.1016/j.jpowsour.2010.02.020 Elsevier SA restricted |
| spellingShingle | Yuan, T. Yu, X. Cai, R. Zhou, Y. Shao, Zongping Synthesis of pristine and carbon-coated Li4Ti5O12 and their low-temperature electrochemical performance |
| title | Synthesis of pristine and carbon-coated Li4Ti5O12 and their low-temperature electrochemical performance |
| title_full | Synthesis of pristine and carbon-coated Li4Ti5O12 and their low-temperature electrochemical performance |
| title_fullStr | Synthesis of pristine and carbon-coated Li4Ti5O12 and their low-temperature electrochemical performance |
| title_full_unstemmed | Synthesis of pristine and carbon-coated Li4Ti5O12 and their low-temperature electrochemical performance |
| title_short | Synthesis of pristine and carbon-coated Li4Ti5O12 and their low-temperature electrochemical performance |
| title_sort | synthesis of pristine and carbon-coated li4ti5o12 and their low-temperature electrochemical performance |
| url | http://hdl.handle.net/20.500.11937/13947 |