Encapsulating porous SnO2 into a hybrid nanocarbon matrix for long lifetime Li storage
To overcome the low conductivity and large volume variation of metal oxide anodes, the electrode microstructure design for these metal oxides appeared to be the most promising strategy for achieving the desired Li storage performance. In this article, we report on a rational design of the carbon/SnO...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/140761 |
| _version_ | 1811685911315873792 |
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| author | Zhao, Yi Wang, Paul Luyuan Xi, Shibo Du, Yonghua Yao, Qianqian Guan, Lunhui Xu, Jason Zhichuan |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Zhao, Yi Wang, Paul Luyuan Xi, Shibo Du, Yonghua Yao, Qianqian Guan, Lunhui Xu, Jason Zhichuan |
| author_sort | Zhao, Yi |
| collection | NTU |
| description | To overcome the low conductivity and large volume variation of metal oxide anodes, the electrode microstructure design for these metal oxides appeared to be the most promising strategy for achieving the desired Li storage performance. In this article, we report on a rational design of the carbon/SnO2 microstructure, in which porous SnO2 nanoparticles are encapsulated into the graphene matrix and additional carbon coating layer. As an anode material for LIBs, the as-prepared G@p-SnO2@C composite exhibited an ultra-long cycling life up to 1800 cycles. It can sustain high specific capacities of 602 and 418 mA h g−1 at 1.5 A g−1 after 1000 and 1800 cycles, respectively. The excellent battery performance could be attributed to the unique architecture of this composite, which enhances electrical conductivity, provides sufficient interior void space to accommodate the volume variation of SnO2, mitigates the aggregation, and preserves the integrity of electrodes during cycling. |
| first_indexed | 2024-10-01T04:52:02Z |
| format | Journal Article |
| id | ntu-10356/140761 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:52:02Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1407612021-01-08T06:59:31Z Encapsulating porous SnO2 into a hybrid nanocarbon matrix for long lifetime Li storage Zhao, Yi Wang, Paul Luyuan Xi, Shibo Du, Yonghua Yao, Qianqian Guan, Lunhui Xu, Jason Zhichuan School of Materials Science and Engineering Singapore-HUJ Alliance for Research and Enterprise Nanomaterials for Energy and Energy-Water Nexus Campus for Research Excellence and Technological Enterprise Energy Research Institute @ NTU (ERI@N) Engineering::Materials Hybrid Nanocarbon Matrix Li Storage To overcome the low conductivity and large volume variation of metal oxide anodes, the electrode microstructure design for these metal oxides appeared to be the most promising strategy for achieving the desired Li storage performance. In this article, we report on a rational design of the carbon/SnO2 microstructure, in which porous SnO2 nanoparticles are encapsulated into the graphene matrix and additional carbon coating layer. As an anode material for LIBs, the as-prepared G@p-SnO2@C composite exhibited an ultra-long cycling life up to 1800 cycles. It can sustain high specific capacities of 602 and 418 mA h g−1 at 1.5 A g−1 after 1000 and 1800 cycles, respectively. The excellent battery performance could be attributed to the unique architecture of this composite, which enhances electrical conductivity, provides sufficient interior void space to accommodate the volume variation of SnO2, mitigates the aggregation, and preserves the integrity of electrodes during cycling. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) 2020-06-02T01:43:31Z 2020-06-02T01:43:31Z 2017 Journal Article Zhao, Y., Wang, P. L., Xi, S., Du, Y., Yao, Q., Guan, L., & Xu, J. Z. (2017). Encapsulating porous SnO2 into a hybrid nanocarbon matrix for long lifetime Li storage. Journal of Materials Chemistry A, 5(48), 25609-25617. doi:10.1039/c7ta09544a 2050-7488 https://hdl.handle.net/10356/140761 10.1039/c7ta09544a 2-s2.0-85038216128 48 5 25609 25617 en Journal of Materials Chemistry A © 2017 The Royal Society of Chemistry. All rights reserved. |
| spellingShingle | Engineering::Materials Hybrid Nanocarbon Matrix Li Storage Zhao, Yi Wang, Paul Luyuan Xi, Shibo Du, Yonghua Yao, Qianqian Guan, Lunhui Xu, Jason Zhichuan Encapsulating porous SnO2 into a hybrid nanocarbon matrix for long lifetime Li storage |
| title | Encapsulating porous SnO2 into a hybrid nanocarbon matrix for long lifetime Li storage |
| title_full | Encapsulating porous SnO2 into a hybrid nanocarbon matrix for long lifetime Li storage |
| title_fullStr | Encapsulating porous SnO2 into a hybrid nanocarbon matrix for long lifetime Li storage |
| title_full_unstemmed | Encapsulating porous SnO2 into a hybrid nanocarbon matrix for long lifetime Li storage |
| title_short | Encapsulating porous SnO2 into a hybrid nanocarbon matrix for long lifetime Li storage |
| title_sort | encapsulating porous sno2 into a hybrid nanocarbon matrix for long lifetime li storage |
| topic | Engineering::Materials Hybrid Nanocarbon Matrix Li Storage |
| url | https://hdl.handle.net/10356/140761 |
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