Facile spray-drying/pyrolysis synthesis of intertwined SiO@CNFs&G composites as superior anode materials for Li-ion batteries
A silicon monoxide/carbon nanofibers/graphite (SiO@CNFs&G) composite with outstanding electrochemistry performance has been easily synthesized using a simple method based on spray drying in combination with a subsequent pyrolysis process; carbon nanofibers intertwined with carbon coated silicon...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Published: |
Royal Society of Chemistry
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/37629 |
| _version_ | 1848755101678698496 |
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| author | Hou, X. Wang, J. Zhang, M. Liu, X. Shao, Zongping Li, W. Hu, S. |
| author_facet | Hou, X. Wang, J. Zhang, M. Liu, X. Shao, Zongping Li, W. Hu, S. |
| author_sort | Hou, X. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A silicon monoxide/carbon nanofibers/graphite (SiO@CNFs&G) composite with outstanding electrochemistry performance has been easily synthesized using a simple method based on spray drying in combination with a subsequent pyrolysis process; carbon nanofibers intertwined with carbon coated silicon monoxide spherical composites and embedded micron-sized graphite. The combination of twisted carbon nanofibers, graphite and amorphous carbon-coating layer accommodates the large volume change of silicon during the lithium intercalation/extraction process, which stabilizes electrode structure during discharge-charge cycles. As an anode material, the as-obtained SiO@CNFs&G composite demonstrates high capacity and excellent cycle stability. An initial specific discharge capacity of approximately 1031.7 mA h g-1 with a coulombic efficiency of 56.6% and a reversible specific capacity of approximately 615.1 mA h g-1 after 100 cycles at a constant density of 100 mA g-1 is achieved, which is about two times the values for graphite. Because of the facile synthesis process and fascinating performance of the prepared electrode, significant commercial potential is expected. |
| first_indexed | 2025-11-14T08:50:57Z |
| format | Journal Article |
| id | curtin-20.500.11937-37629 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:50:57Z |
| publishDate | 2014 |
| publisher | Royal Society of Chemistry |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-376292017-09-13T14:03:55Z Facile spray-drying/pyrolysis synthesis of intertwined SiO@CNFs&G composites as superior anode materials for Li-ion batteries Hou, X. Wang, J. Zhang, M. Liu, X. Shao, Zongping Li, W. Hu, S. A silicon monoxide/carbon nanofibers/graphite (SiO@CNFs&G) composite with outstanding electrochemistry performance has been easily synthesized using a simple method based on spray drying in combination with a subsequent pyrolysis process; carbon nanofibers intertwined with carbon coated silicon monoxide spherical composites and embedded micron-sized graphite. The combination of twisted carbon nanofibers, graphite and amorphous carbon-coating layer accommodates the large volume change of silicon during the lithium intercalation/extraction process, which stabilizes electrode structure during discharge-charge cycles. As an anode material, the as-obtained SiO@CNFs&G composite demonstrates high capacity and excellent cycle stability. An initial specific discharge capacity of approximately 1031.7 mA h g-1 with a coulombic efficiency of 56.6% and a reversible specific capacity of approximately 615.1 mA h g-1 after 100 cycles at a constant density of 100 mA g-1 is achieved, which is about two times the values for graphite. Because of the facile synthesis process and fascinating performance of the prepared electrode, significant commercial potential is expected. 2014 Journal Article http://hdl.handle.net/20.500.11937/37629 10.1039/c4ra03475a Royal Society of Chemistry restricted |
| spellingShingle | Hou, X. Wang, J. Zhang, M. Liu, X. Shao, Zongping Li, W. Hu, S. Facile spray-drying/pyrolysis synthesis of intertwined SiO@CNFs&G composites as superior anode materials for Li-ion batteries |
| title | Facile spray-drying/pyrolysis synthesis of intertwined SiO@CNFs&G composites as superior anode materials for Li-ion batteries |
| title_full | Facile spray-drying/pyrolysis synthesis of intertwined SiO@CNFs&G composites as superior anode materials for Li-ion batteries |
| title_fullStr | Facile spray-drying/pyrolysis synthesis of intertwined SiO@CNFs&G composites as superior anode materials for Li-ion batteries |
| title_full_unstemmed | Facile spray-drying/pyrolysis synthesis of intertwined SiO@CNFs&G composites as superior anode materials for Li-ion batteries |
| title_short | Facile spray-drying/pyrolysis synthesis of intertwined SiO@CNFs&G composites as superior anode materials for Li-ion batteries |
| title_sort | facile spray-drying/pyrolysis synthesis of intertwined sio@cnfs&g composites as superior anode materials for li-ion batteries |
| url | http://hdl.handle.net/20.500.11937/37629 |