Carbon coated bimetallic sulfide hollow nanocubes as advanced sodium ion battery anode
Sodium ion battery (SIB) as a next‐generation battery has been drawing much attention due to the abundance and even distribution of sodium source. Metal sulfides with high theoretical capacity and good electrical conductivity are promising anode candidates for SIB, however, the structural collapse c...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Online Access: | https://hdl.handle.net/10356/140425 |
| _version_ | 1826127400284454912 |
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| author | Chen, Jingwei Li, Shaohui Kumar, Vipin Lee, Pooi See |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Chen, Jingwei Li, Shaohui Kumar, Vipin Lee, Pooi See |
| author_sort | Chen, Jingwei |
| collection | NTU |
| description | Sodium ion battery (SIB) as a next‐generation battery has been drawing much attention due to the abundance and even distribution of sodium source. Metal sulfides with high theoretical capacity and good electrical conductivity are promising anode candidates for SIB, however, the structural collapse caused by severe volume change during the de/sodiation process typically results in a fast capacity decay, limited rate capability, and cycling stability. In this work, by careful composition and structure design, polydopamine coated Prussian blue analogs derived carbon coated bimetallic sulfide hollow nanocubes (PBCS) are prepared with distinguished morphology, higher surface area, smaller charge transfer resistance, and higher sodium diffusion coefficient than the uncoated bimetallic sulfides. An optimum carbon coated bimetallic sulfide hollow nanocube anode delivers a specific capacity of ≈500 mA h g−1 at 50 mA g−1 with ethylene carbonate/dimethyl carbonate (1:1, vol%) electrolyte in the presence of fluoroethylene carbonate additives. A capacity of 122.3 mA h g−1 can be realized at 5000 mA g−1, showing good rate performance. In addition the carbon coated bimetallic sulfide hollow nanocubes can maintain capacity of 87 mA h g−1 after being cycled at 500 mA g−1 for 150 times, indicating its good cycling stability. The structure integrity, high specific capacity, good rate performance, and cycling stability of PBCS render it a promising anode material for advanced SIB. |
| first_indexed | 2024-10-01T07:08:15Z |
| format | Journal Article |
| id | ntu-10356/140425 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:08:15Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1404252023-07-14T15:48:17Z Carbon coated bimetallic sulfide hollow nanocubes as advanced sodium ion battery anode Chen, Jingwei Li, Shaohui Kumar, Vipin Lee, Pooi See School of Materials Science & Engineering Science::Chemistry Bimetallic Sulfides Prussian Blue Analogs Sodium ion battery (SIB) as a next‐generation battery has been drawing much attention due to the abundance and even distribution of sodium source. Metal sulfides with high theoretical capacity and good electrical conductivity are promising anode candidates for SIB, however, the structural collapse caused by severe volume change during the de/sodiation process typically results in a fast capacity decay, limited rate capability, and cycling stability. In this work, by careful composition and structure design, polydopamine coated Prussian blue analogs derived carbon coated bimetallic sulfide hollow nanocubes (PBCS) are prepared with distinguished morphology, higher surface area, smaller charge transfer resistance, and higher sodium diffusion coefficient than the uncoated bimetallic sulfides. An optimum carbon coated bimetallic sulfide hollow nanocube anode delivers a specific capacity of ≈500 mA h g−1 at 50 mA g−1 with ethylene carbonate/dimethyl carbonate (1:1, vol%) electrolyte in the presence of fluoroethylene carbonate additives. A capacity of 122.3 mA h g−1 can be realized at 5000 mA g−1, showing good rate performance. In addition the carbon coated bimetallic sulfide hollow nanocubes can maintain capacity of 87 mA h g−1 after being cycled at 500 mA g−1 for 150 times, indicating its good cycling stability. The structure integrity, high specific capacity, good rate performance, and cycling stability of PBCS render it a promising anode material for advanced SIB. NRF (Natl Research Foundation, S’pore) Accepted version 2020-05-29T01:25:49Z 2020-05-29T01:25:49Z 2017 Journal Article Chen, J., Li, S., Kumar, V., & Lee, P. S. (2017). Carbon coated bimetallic sulfide hollow nanocubes as advanced sodium ion battery anode. Advanced Energy Materials, 7(19), 1700180-. doi:10.1002/aenm.201700180 1614-6832 https://hdl.handle.net/10356/140425 10.1002/aenm.201700180 19 7 en Advanced Energy Materials This is the accepted version of the following article: Chen, J., Li, S., Kumar, V., & Lee, P. S. (2017). Carbon coated bimetallic sulfide hollow nanocubes as advanced sodium ion battery anode. Advanced Energy Materials, 7(19), 1700180-, which has been published in final form at https://doi.org/10.1002/aenm.201700180. This article may be used for non-commercial purposes in accordance with the Wiley Self-Archiving Policy [https://authorservices.wiley.com/authorresources/Journal-Authors/licensing/self-archiving.html]. application/pdf |
| spellingShingle | Science::Chemistry Bimetallic Sulfides Prussian Blue Analogs Chen, Jingwei Li, Shaohui Kumar, Vipin Lee, Pooi See Carbon coated bimetallic sulfide hollow nanocubes as advanced sodium ion battery anode |
| title | Carbon coated bimetallic sulfide hollow nanocubes as advanced sodium ion battery anode |
| title_full | Carbon coated bimetallic sulfide hollow nanocubes as advanced sodium ion battery anode |
| title_fullStr | Carbon coated bimetallic sulfide hollow nanocubes as advanced sodium ion battery anode |
| title_full_unstemmed | Carbon coated bimetallic sulfide hollow nanocubes as advanced sodium ion battery anode |
| title_short | Carbon coated bimetallic sulfide hollow nanocubes as advanced sodium ion battery anode |
| title_sort | carbon coated bimetallic sulfide hollow nanocubes as advanced sodium ion battery anode |
| topic | Science::Chemistry Bimetallic Sulfides Prussian Blue Analogs |
| url | https://hdl.handle.net/10356/140425 |
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