A Green Route to a Na2FePO4F-Based Cathode for Sodium Ion Batteries of High Rate and Long Cycling Life
© 2017 American Chemical Society. Sodium ion batteries (SIBs) are considered one of the most promising alternatives for large-scale energy storage due largely to the abundance and low cost of sodium. However, the lack of high-performance cathode materials at low cost represents a major obstacle towa...
| Main Authors: | , , , , |
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| Format: | Journal Article |
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American Chemical Society
2017
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| Online Access: | http://hdl.handle.net/20.500.11937/55726 |
| _version_ | 1848759692122128384 |
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| author | Deng, X. Shi, W. Sunarso, J. Liu, M. Shao, Zongping |
| author_facet | Deng, X. Shi, W. Sunarso, J. Liu, M. Shao, Zongping |
| author_sort | Deng, X. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2017 American Chemical Society. Sodium ion batteries (SIBs) are considered one of the most promising alternatives for large-scale energy storage due largely to the abundance and low cost of sodium. However, the lack of high-performance cathode materials at low cost represents a major obstacle toward broad commercialization of SIB technology. In this work, we report a green route strategy that allows cost-effective fabrication of carbon-coated Na 2 FePO 4 F cathode for SIBs. By using vitamin C as a green organic carbon source and environmentally friendly water-based polyacrylic latex as the binder, we have demonstrated that the Na 2 FePO 4 F phase in the as-derived Na 2 FePO 4 F/C electrode shows a high reversible capacity of 117 mAh g -1 at a cycling rate of 0.1 C. More attractively, excellent rate capability is achieved while retaining outstanding cycling stability (~85% capacity retention after 1000 charge-discharge cycles at a rate of 4 C). Further, in operando X-ray diffraction has been used to probe the evolution of phase structures during the charge-discharge process, confirming the structural robustness of the Na 2 FePO 4 F/C cathode (even when charged to 4.5 V). Accordingly, the poor initial Coulombic efficiency of some anode materials may be compensated by extracting more sodium ions from Na 2 FePO 4 F/C cathode at higher potentials (up to 4.5 V). |
| first_indexed | 2025-11-14T10:03:55Z |
| format | Journal Article |
| id | curtin-20.500.11937-55726 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:03:55Z |
| publishDate | 2017 |
| publisher | American Chemical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-557262023-08-02T06:39:09Z A Green Route to a Na2FePO4F-Based Cathode for Sodium Ion Batteries of High Rate and Long Cycling Life Deng, X. Shi, W. Sunarso, J. Liu, M. Shao, Zongping © 2017 American Chemical Society. Sodium ion batteries (SIBs) are considered one of the most promising alternatives for large-scale energy storage due largely to the abundance and low cost of sodium. However, the lack of high-performance cathode materials at low cost represents a major obstacle toward broad commercialization of SIB technology. In this work, we report a green route strategy that allows cost-effective fabrication of carbon-coated Na 2 FePO 4 F cathode for SIBs. By using vitamin C as a green organic carbon source and environmentally friendly water-based polyacrylic latex as the binder, we have demonstrated that the Na 2 FePO 4 F phase in the as-derived Na 2 FePO 4 F/C electrode shows a high reversible capacity of 117 mAh g -1 at a cycling rate of 0.1 C. More attractively, excellent rate capability is achieved while retaining outstanding cycling stability (~85% capacity retention after 1000 charge-discharge cycles at a rate of 4 C). Further, in operando X-ray diffraction has been used to probe the evolution of phase structures during the charge-discharge process, confirming the structural robustness of the Na 2 FePO 4 F/C cathode (even when charged to 4.5 V). Accordingly, the poor initial Coulombic efficiency of some anode materials may be compensated by extracting more sodium ions from Na 2 FePO 4 F/C cathode at higher potentials (up to 4.5 V). 2017 Journal Article http://hdl.handle.net/20.500.11937/55726 10.1021/acsami.7b03933 American Chemical Society restricted |
| spellingShingle | Deng, X. Shi, W. Sunarso, J. Liu, M. Shao, Zongping A Green Route to a Na2FePO4F-Based Cathode for Sodium Ion Batteries of High Rate and Long Cycling Life |
| title | A Green Route to a Na2FePO4F-Based Cathode for Sodium Ion Batteries of High Rate and Long Cycling Life |
| title_full | A Green Route to a Na2FePO4F-Based Cathode for Sodium Ion Batteries of High Rate and Long Cycling Life |
| title_fullStr | A Green Route to a Na2FePO4F-Based Cathode for Sodium Ion Batteries of High Rate and Long Cycling Life |
| title_full_unstemmed | A Green Route to a Na2FePO4F-Based Cathode for Sodium Ion Batteries of High Rate and Long Cycling Life |
| title_short | A Green Route to a Na2FePO4F-Based Cathode for Sodium Ion Batteries of High Rate and Long Cycling Life |
| title_sort | green route to a na2fepo4f-based cathode for sodium ion batteries of high rate and long cycling life |
| url | http://hdl.handle.net/20.500.11937/55726 |