Li4Ti5O12 electrodes operated under hurdle conditions and SiO2 incorporation effect
Lithium titanate (Li4Ti5O12) and SiO2-incorporated Li4Ti5O12 are synthesized, using a facile cellulose assisted combustion technique, as anodes for lithium-ion batteries tested under different conditions, i.e., discharge to an end potential of 1.0 V/0.01 V at room/elevated temperature (55 C). The pa...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier SA
2013
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/33426 |
| _version_ | 1848753943227662336 |
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| author | Jiang, S. Zhao, B. Chen, Y. Cai, R. Shao, Zongping |
| author_facet | Jiang, S. Zhao, B. Chen, Y. Cai, R. Shao, Zongping |
| author_sort | Jiang, S. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Lithium titanate (Li4Ti5O12) and SiO2-incorporated Li4Ti5O12 are synthesized, using a facile cellulose assisted combustion technique, as anodes for lithium-ion batteries tested under different conditions, i.e., discharge to an end potential of 1.0 V/0.01 V at room/elevated temperature (55 C). The particles are characterized using X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), nitrogen adsorption-desorption isotherms, X-ray spectrometry (EDX) and transmission electron microscopy (TEM). The results show that silicon element is successfully incorporated with Li4Ti5O12 homogeneously in the forms of Si-doping and SiO2 separate phase. When discharged in the potential range of 0.01e3.0 V, initial discharge capacities of 260 mA h g1 and 298 mA h g1 are obtained for the Li4Ti5O12 and SiO2-incorporated Li4Ti5O12 electrodes, respectively. Both electrodes show stable cycling performance for 400 cycles (approximately 1.5 months) at room temperature between 0.01 and 3.0 V at a current density of 175 mA g-1. In addition, the stability of the electrodes under hurdle conditions (0.01e3.0 V at 55 degrees Celcius) areexplored and discussed, and a proposed mechanism for the “decrease-increase-decrease” cyclingbehavior is confirmed using electrochemical impedance spectroscopy (EIS) and TEM observations. The incorporation of SiO2 was found to improve the cycling stability under hurdle conditions. |
| first_indexed | 2025-11-14T08:32:32Z |
| format | Journal Article |
| id | curtin-20.500.11937-33426 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:32:32Z |
| publishDate | 2013 |
| publisher | Elsevier SA |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-334262017-02-28T01:51:02Z Li4Ti5O12 electrodes operated under hurdle conditions and SiO2 incorporation effect Jiang, S. Zhao, B. Chen, Y. Cai, R. Shao, Zongping Hurdle condition Lithium-ion battery Silicon oxide Elevated temperature Anode Lithium titanate Lithium titanate (Li4Ti5O12) and SiO2-incorporated Li4Ti5O12 are synthesized, using a facile cellulose assisted combustion technique, as anodes for lithium-ion batteries tested under different conditions, i.e., discharge to an end potential of 1.0 V/0.01 V at room/elevated temperature (55 C). The particles are characterized using X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), nitrogen adsorption-desorption isotherms, X-ray spectrometry (EDX) and transmission electron microscopy (TEM). The results show that silicon element is successfully incorporated with Li4Ti5O12 homogeneously in the forms of Si-doping and SiO2 separate phase. When discharged in the potential range of 0.01e3.0 V, initial discharge capacities of 260 mA h g1 and 298 mA h g1 are obtained for the Li4Ti5O12 and SiO2-incorporated Li4Ti5O12 electrodes, respectively. Both electrodes show stable cycling performance for 400 cycles (approximately 1.5 months) at room temperature between 0.01 and 3.0 V at a current density of 175 mA g-1. In addition, the stability of the electrodes under hurdle conditions (0.01e3.0 V at 55 degrees Celcius) areexplored and discussed, and a proposed mechanism for the “decrease-increase-decrease” cyclingbehavior is confirmed using electrochemical impedance spectroscopy (EIS) and TEM observations. The incorporation of SiO2 was found to improve the cycling stability under hurdle conditions. 2013 Journal Article http://hdl.handle.net/20.500.11937/33426 Elsevier SA restricted |
| spellingShingle | Hurdle condition Lithium-ion battery Silicon oxide Elevated temperature Anode Lithium titanate Jiang, S. Zhao, B. Chen, Y. Cai, R. Shao, Zongping Li4Ti5O12 electrodes operated under hurdle conditions and SiO2 incorporation effect |
| title | Li4Ti5O12 electrodes operated under hurdle conditions and SiO2 incorporation effect |
| title_full | Li4Ti5O12 electrodes operated under hurdle conditions and SiO2 incorporation effect |
| title_fullStr | Li4Ti5O12 electrodes operated under hurdle conditions and SiO2 incorporation effect |
| title_full_unstemmed | Li4Ti5O12 electrodes operated under hurdle conditions and SiO2 incorporation effect |
| title_short | Li4Ti5O12 electrodes operated under hurdle conditions and SiO2 incorporation effect |
| title_sort | li4ti5o12 electrodes operated under hurdle conditions and sio2 incorporation effect |
| topic | Hurdle condition Lithium-ion battery Silicon oxide Elevated temperature Anode Lithium titanate |
| url | http://hdl.handle.net/20.500.11937/33426 |