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- Publisher Website: 10.1039/c5nr00885a
- Scopus: eid_2-s2.0-84929465858
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Article: High-performance graphene/sulphur electrodes for flexible Li-ion batteries using the low-temperature spraying method
Title | High-performance graphene/sulphur electrodes for flexible Li-ion batteries using the low-temperature spraying method |
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Authors | |
Issue Date | 2015 |
Citation | Nanoscale, 2015, v. 7, n. 17, p. 8093-8100 How to Cite? |
Abstract | Elementary sulphur (S) has been shown to be an excellent cathode material in energy storage devices such as Li-S batteries owing to its very high capacity. The major challenges associated with the sulphur cathodes are structural degradation, poor cycling performance and instability of the solid-electrolyte interphase caused by the dissolution of polysulfides during cycling. Tremendous efforts made by others have demonstrated that encapsulation of S materials improves their cycling performance. To make this approach practical for large scale applications, the use of low-cost technology and materials has become a crucial and new focus of S-based Li-ion batteries. Herein, we propose to use a low temperature spraying process to fabricate graphene/S electrode material, where the ink is composed of graphene flakes and the micron-sized S particles prepared by grinding of low-cost S powders. The S particles are found to be well hosted by highly conductive graphene flakes and consequently superior cyclability (∼70% capacity retention after 250 cycles), good coulombic efficiency (∼98%) and high capacity (∼1500 mA h g-1) are obtained. The proposed approach does not require high temperature annealing or baking; hence, another great advantage is to make flexible Li-ion batteries. We have also demonstrated two types of flexible batteries using sprayed graphene/S electrodes. |
Persistent Identifier | http://hdl.handle.net/10722/298117 |
ISSN | 2023 Impact Factor: 5.8 2023 SCImago Journal Rankings: 1.416 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Kumar, Pushpendra | - |
dc.contributor.author | Wu, Feng Yu | - |
dc.contributor.author | Hu, Lung Hao | - |
dc.contributor.author | Ali Abbas, Syed | - |
dc.contributor.author | Ming, Jun | - |
dc.contributor.author | Lin, Chia Nan | - |
dc.contributor.author | Fang, Jason | - |
dc.contributor.author | Chu, Chih Wei | - |
dc.contributor.author | Li, Lain Jong | - |
dc.date.accessioned | 2021-04-08T03:07:43Z | - |
dc.date.available | 2021-04-08T03:07:43Z | - |
dc.date.issued | 2015 | - |
dc.identifier.citation | Nanoscale, 2015, v. 7, n. 17, p. 8093-8100 | - |
dc.identifier.issn | 2040-3364 | - |
dc.identifier.uri | http://hdl.handle.net/10722/298117 | - |
dc.description.abstract | Elementary sulphur (S) has been shown to be an excellent cathode material in energy storage devices such as Li-S batteries owing to its very high capacity. The major challenges associated with the sulphur cathodes are structural degradation, poor cycling performance and instability of the solid-electrolyte interphase caused by the dissolution of polysulfides during cycling. Tremendous efforts made by others have demonstrated that encapsulation of S materials improves their cycling performance. To make this approach practical for large scale applications, the use of low-cost technology and materials has become a crucial and new focus of S-based Li-ion batteries. Herein, we propose to use a low temperature spraying process to fabricate graphene/S electrode material, where the ink is composed of graphene flakes and the micron-sized S particles prepared by grinding of low-cost S powders. The S particles are found to be well hosted by highly conductive graphene flakes and consequently superior cyclability (∼70% capacity retention after 250 cycles), good coulombic efficiency (∼98%) and high capacity (∼1500 mA h g<sup>-1</sup>) are obtained. The proposed approach does not require high temperature annealing or baking; hence, another great advantage is to make flexible Li-ion batteries. We have also demonstrated two types of flexible batteries using sprayed graphene/S electrodes. | - |
dc.language | eng | - |
dc.relation.ispartof | Nanoscale | - |
dc.title | High-performance graphene/sulphur electrodes for flexible Li-ion batteries using the low-temperature spraying method | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1039/c5nr00885a | - |
dc.identifier.scopus | eid_2-s2.0-84929465858 | - |
dc.identifier.volume | 7 | - |
dc.identifier.issue | 17 | - |
dc.identifier.spage | 8093 | - |
dc.identifier.epage | 8100 | - |
dc.identifier.eissn | 2040-3372 | - |
dc.identifier.isi | WOS:000353981700069 | - |
dc.identifier.issnl | 2040-3364 | - |