Enabling a stable room-temperature sodium-sulfur battery cathode by building heterostructures in multichannel carbon fibers
Room-temperature sodium-sulfur (RT Na-S) batteries are widely considered as one of the alternative energy-storage systems with low cost and high energy density. However, the both poor cycle stability and capacity are two critical issues arising from low conversion kinetics and sodium polysulfides (N...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Online Access: | https://hdl.handle.net/10356/160120 |
| _version_ | 1826125695894421504 |
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| author | Ye, Xin Ruan, Jiafeng Pang, Yuepeng Yang, Junhe Liu, Yongfeng Huang, Yizhong Zheng, Shiyou |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Ye, Xin Ruan, Jiafeng Pang, Yuepeng Yang, Junhe Liu, Yongfeng Huang, Yizhong Zheng, Shiyou |
| author_sort | Ye, Xin |
| collection | NTU |
| description | Room-temperature sodium-sulfur (RT Na-S) batteries are widely considered as one of the alternative energy-storage systems with low cost and high energy density. However, the both poor cycle stability and capacity are two critical issues arising from low conversion kinetics and sodium polysulfides (NaPSs) dissolution for sulfur cathodes during the charge/discharge process. Herein, we report a highly stable RT Na-S battery cathode via building heterostructures in multichannel carbon fibers. The TiN-TiO2@MCCFs, fabricated by electrospinning and nitriding techniques, are loaded with the active material S, forming S/TiN-TiO2@MCCFs as the cathode in a RT Na-S battery. At 0.1 A g-1, the cathode produces the capacity of more than 640 mAh g-1 within 100 cycles with a high Coulombic efficiency of nearly 100%. Even at 5 A g-1, the battery still exhibites a capacity of 257.1 mAh g-1 after 1000 cycles. Combining structural and electrochemical analyses with the first-principles calculations reveals that the incorporation of the highly electrocatalytic activity of TiN with the powerful chemisorption of TiO2 well stabilizes S and also alleviates the shuttle effects of polysulfides. This work with simple processes and low cost is expected to promote the further development and application of metal-S batteries. |
| first_indexed | 2024-10-01T06:40:34Z |
| format | Journal Article |
| id | ntu-10356/160120 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:40:34Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1601202022-07-13T02:25:17Z Enabling a stable room-temperature sodium-sulfur battery cathode by building heterostructures in multichannel carbon fibers Ye, Xin Ruan, Jiafeng Pang, Yuepeng Yang, Junhe Liu, Yongfeng Huang, Yizhong Zheng, Shiyou School of Materials Science and Engineering Engineering::Materials Sodium-Sulfur Battery Heterostructure Room-temperature sodium-sulfur (RT Na-S) batteries are widely considered as one of the alternative energy-storage systems with low cost and high energy density. However, the both poor cycle stability and capacity are two critical issues arising from low conversion kinetics and sodium polysulfides (NaPSs) dissolution for sulfur cathodes during the charge/discharge process. Herein, we report a highly stable RT Na-S battery cathode via building heterostructures in multichannel carbon fibers. The TiN-TiO2@MCCFs, fabricated by electrospinning and nitriding techniques, are loaded with the active material S, forming S/TiN-TiO2@MCCFs as the cathode in a RT Na-S battery. At 0.1 A g-1, the cathode produces the capacity of more than 640 mAh g-1 within 100 cycles with a high Coulombic efficiency of nearly 100%. Even at 5 A g-1, the battery still exhibites a capacity of 257.1 mAh g-1 after 1000 cycles. Combining structural and electrochemical analyses with the first-principles calculations reveals that the incorporation of the highly electrocatalytic activity of TiN with the powerful chemisorption of TiO2 well stabilizes S and also alleviates the shuttle effects of polysulfides. This work with simple processes and low cost is expected to promote the further development and application of metal-S batteries. The authors gratefully acknowledge the support of the National Natural Science Foundation of China (51971146 and 51971147). We also acknowledge the support of the Innovation Program of Shanghai Municipal Education Commission (2019-01-07-00-07-E00015), the Shanghai Rising-Star Program (20QA1407100), the General Program of Natural Science Foundation of Shanghai (20ZR1438400), and Shanghai Outstanding Academic Leaders Plan. 2022-07-13T02:25:17Z 2022-07-13T02:25:17Z 2021 Journal Article Ye, X., Ruan, J., Pang, Y., Yang, J., Liu, Y., Huang, Y. & Zheng, S. (2021). Enabling a stable room-temperature sodium-sulfur battery cathode by building heterostructures in multichannel carbon fibers. ACS Nano, 15(3), 5639-5648. https://dx.doi.org/10.1021/acsnano.1c00804 1936-0851 https://hdl.handle.net/10356/160120 10.1021/acsnano.1c00804 33666431 2-s2.0-85103437399 3 15 5639 5648 en ACS Nano © 2021 American Chemical Society. All rights reserved. |
| spellingShingle | Engineering::Materials Sodium-Sulfur Battery Heterostructure Ye, Xin Ruan, Jiafeng Pang, Yuepeng Yang, Junhe Liu, Yongfeng Huang, Yizhong Zheng, Shiyou Enabling a stable room-temperature sodium-sulfur battery cathode by building heterostructures in multichannel carbon fibers |
| title | Enabling a stable room-temperature sodium-sulfur battery cathode by building heterostructures in multichannel carbon fibers |
| title_full | Enabling a stable room-temperature sodium-sulfur battery cathode by building heterostructures in multichannel carbon fibers |
| title_fullStr | Enabling a stable room-temperature sodium-sulfur battery cathode by building heterostructures in multichannel carbon fibers |
| title_full_unstemmed | Enabling a stable room-temperature sodium-sulfur battery cathode by building heterostructures in multichannel carbon fibers |
| title_short | Enabling a stable room-temperature sodium-sulfur battery cathode by building heterostructures in multichannel carbon fibers |
| title_sort | enabling a stable room temperature sodium sulfur battery cathode by building heterostructures in multichannel carbon fibers |
| topic | Engineering::Materials Sodium-Sulfur Battery Heterostructure |
| url | https://hdl.handle.net/10356/160120 |
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