Synthesis of lithium insertion material Li4Ti5O12 from rutile TiO2 via surface activation
The synthesis of spinel-type lithium titanate, Li4Ti5O12, a promising anode material of secondary lithium-ion battery, from "inert" rutile TiO2, is investigated. On the purpose of increasing the reactivity of rutile TiO2, it is treated by concentrated HNO3. By applying such activated rutil...
| Main Authors: | , , , |
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| Format: | Journal Article |
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Elsevier SA
2010
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| Online Access: | http://hdl.handle.net/20.500.11937/43411 |
| _version_ | 1848756683915919360 |
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| author | Yuan, T. Cai, R. Gu, P. Shao, Zongping |
| author_facet | Yuan, T. Cai, R. Gu, P. Shao, Zongping |
| author_sort | Yuan, T. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The synthesis of spinel-type lithium titanate, Li4Ti5O12, a promising anode material of secondary lithium-ion battery, from "inert" rutile TiO2, is investigated. On the purpose of increasing the reactivity of rutile TiO2, it is treated by concentrated HNO3. By applying such activated rutile TiO2 as the titanium source in combination with the cellulose-assisted combustion synthesis, phase-pure Li4Ti5O12 is successfully synthesized at 800 °C, at least 150 °C lower than that based on solid-state reaction. The resulted oxide shows a reversible discharge capacity of ~175 mAh g-1 at 1 C rate, near the theoretical value. The resulted oxide also shows promising high rate performance with a discharge capacity of ~100 mAh g-1 at 10 C rate and high cycling stability. © 2009 Elsevier B.V. All rights reserved. |
| first_indexed | 2025-11-14T09:16:06Z |
| format | Journal Article |
| id | curtin-20.500.11937-43411 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:16:06Z |
| publishDate | 2010 |
| publisher | Elsevier SA |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-434112017-09-13T13:59:39Z Synthesis of lithium insertion material Li4Ti5O12 from rutile TiO2 via surface activation Yuan, T. Cai, R. Gu, P. Shao, Zongping The synthesis of spinel-type lithium titanate, Li4Ti5O12, a promising anode material of secondary lithium-ion battery, from "inert" rutile TiO2, is investigated. On the purpose of increasing the reactivity of rutile TiO2, it is treated by concentrated HNO3. By applying such activated rutile TiO2 as the titanium source in combination with the cellulose-assisted combustion synthesis, phase-pure Li4Ti5O12 is successfully synthesized at 800 °C, at least 150 °C lower than that based on solid-state reaction. The resulted oxide shows a reversible discharge capacity of ~175 mAh g-1 at 1 C rate, near the theoretical value. The resulted oxide also shows promising high rate performance with a discharge capacity of ~100 mAh g-1 at 10 C rate and high cycling stability. © 2009 Elsevier B.V. All rights reserved. 2010 Journal Article http://hdl.handle.net/20.500.11937/43411 10.1016/j.jpowsour.2009.11.073 Elsevier SA restricted |
| spellingShingle | Yuan, T. Cai, R. Gu, P. Shao, Zongping Synthesis of lithium insertion material Li4Ti5O12 from rutile TiO2 via surface activation |
| title | Synthesis of lithium insertion material Li4Ti5O12 from rutile TiO2 via surface activation |
| title_full | Synthesis of lithium insertion material Li4Ti5O12 from rutile TiO2 via surface activation |
| title_fullStr | Synthesis of lithium insertion material Li4Ti5O12 from rutile TiO2 via surface activation |
| title_full_unstemmed | Synthesis of lithium insertion material Li4Ti5O12 from rutile TiO2 via surface activation |
| title_short | Synthesis of lithium insertion material Li4Ti5O12 from rutile TiO2 via surface activation |
| title_sort | synthesis of lithium insertion material li4ti5o12 from rutile tio2 via surface activation |
| url | http://hdl.handle.net/20.500.11937/43411 |