A Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>-Based Composite as Separator Coating for Stable Li-S Batteries
The nitrogen-doped MXene carbon nanosheet-nickel (N-M@CNi) powder was successfully prepared by a combined process of electrostatic attraction and annealing strategy, and then applied as the separator coating in lithium–sulfur batteries. The morphology and structure of the N-M@CNi were characterized...
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| Format: | Article |
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MDPI AG
2022-10-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/21/3770 |
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| author | Ruowei Yi Yinchao Zhao Chenguang Liu Yi Sun Chun Zhao Yinqing Li Li Yang Cezhou Zhao |
| author_facet | Ruowei Yi Yinchao Zhao Chenguang Liu Yi Sun Chun Zhao Yinqing Li Li Yang Cezhou Zhao |
| author_sort | Ruowei Yi |
| collection | DOAJ |
| description | The nitrogen-doped MXene carbon nanosheet-nickel (N-M@CNi) powder was successfully prepared by a combined process of electrostatic attraction and annealing strategy, and then applied as the separator coating in lithium–sulfur batteries. The morphology and structure of the N-M@CNi were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), Raman spectrum, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and nitrogen adsorption–desorption method. The strong LiPS adsorption ability and high conductivity are associated with the N-doped carbon nanosheet-Ni modified surface. The modified separator offers the cathode of Li–S cell with greater sulfur utilization, better high-rate adaptability, and more stable cycling performance compared with the pristine separator. At 0.2 C the cell with N-M@CNi separator delivers an initial capacity of 1309 mAh g<sup>−1</sup>. More importantly, the N-M@CNi separator is able to handle a cathode with 3.18 mg cm<sup>−2</sup> sulfur loading, delivering a capacity decay rate of 0.043% with a high capacity retention of 95.8%. Therefore, this work may provide a feasible approach to separator modification materials towards improved Li-S cells with improved stability. |
| first_indexed | 2024-03-09T18:46:45Z |
| format | Article |
| id | doaj.art-22e5b8257559403d9fb33259654e80ee |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T18:46:45Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-22e5b8257559403d9fb33259654e80ee2023-11-24T06:08:54ZengMDPI AGNanomaterials2079-49912022-10-011221377010.3390/nano12213770A Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>-Based Composite as Separator Coating for Stable Li-S BatteriesRuowei Yi0Yinchao Zhao1Chenguang Liu2Yi Sun3Chun Zhao4Yinqing Li5Li Yang6Cezhou Zhao7Department of Chemistry, Xi’an Jiaotong-Liverpool University, Suzhou 215123, ChinaDepartment of Electrical and Electronic Engineering, Xi’an Jiaotong-Liverpool University, Suzhou 215123, ChinaDepartment of Electrical and Electronic Engineering, Xi’an Jiaotong-Liverpool University, Suzhou 215123, ChinaDepartment of Electrical and Electronic Engineering, Xi’an Jiaotong-Liverpool University, Suzhou 215123, ChinaDepartment of Electrical and Electronic Engineering, Xi’an Jiaotong-Liverpool University, Suzhou 215123, ChinaDongguan Hongde Battery Co., Ltd., Dongguan 523649, ChinaDepartment of Chemistry, Xi’an Jiaotong-Liverpool University, Suzhou 215123, ChinaDepartment of Electrical and Electronic Engineering, Xi’an Jiaotong-Liverpool University, Suzhou 215123, ChinaThe nitrogen-doped MXene carbon nanosheet-nickel (N-M@CNi) powder was successfully prepared by a combined process of electrostatic attraction and annealing strategy, and then applied as the separator coating in lithium–sulfur batteries. The morphology and structure of the N-M@CNi were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), Raman spectrum, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and nitrogen adsorption–desorption method. The strong LiPS adsorption ability and high conductivity are associated with the N-doped carbon nanosheet-Ni modified surface. The modified separator offers the cathode of Li–S cell with greater sulfur utilization, better high-rate adaptability, and more stable cycling performance compared with the pristine separator. At 0.2 C the cell with N-M@CNi separator delivers an initial capacity of 1309 mAh g<sup>−1</sup>. More importantly, the N-M@CNi separator is able to handle a cathode with 3.18 mg cm<sup>−2</sup> sulfur loading, delivering a capacity decay rate of 0.043% with a high capacity retention of 95.8%. Therefore, this work may provide a feasible approach to separator modification materials towards improved Li-S cells with improved stability.https://www.mdpi.com/2079-4991/12/21/3770MXenecarbon nanosheetslithium–sulfur batteriesmodified separator |
| spellingShingle | Ruowei Yi Yinchao Zhao Chenguang Liu Yi Sun Chun Zhao Yinqing Li Li Yang Cezhou Zhao A Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>-Based Composite as Separator Coating for Stable Li-S Batteries Nanomaterials MXene carbon nanosheets lithium–sulfur batteries modified separator |
| title | A Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>-Based Composite as Separator Coating for Stable Li-S Batteries |
| title_full | A Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>-Based Composite as Separator Coating for Stable Li-S Batteries |
| title_fullStr | A Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>-Based Composite as Separator Coating for Stable Li-S Batteries |
| title_full_unstemmed | A Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>-Based Composite as Separator Coating for Stable Li-S Batteries |
| title_short | A Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>-Based Composite as Separator Coating for Stable Li-S Batteries |
| title_sort | ti sub 3 sub c sub 2 sub t sub x sub based composite as separator coating for stable li s batteries |
| topic | MXene carbon nanosheets lithium–sulfur batteries modified separator |
| url | https://www.mdpi.com/2079-4991/12/21/3770 |
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