Facile Synthesis of S/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> Mxene@Se Cathode for High-Sulfur-Loading Lithium–Sulfur Batteries
Lithium–sulfur batteries (LSBs) are gaining much attention because they offer a much higher theoretical energy density compared to traditional lithium-ion batteries. However, the cycling performance of LSBs with high sulfur mass loading is poor due to the shuttle effect, limiting the practical appli...
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MDPI AG
2024-12-01
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| author | Yupu Shi Jianbin Xu Xian Du Yi Zhang Fan Zhao Ziwei Tang Le Kang Huiling Du |
| author_facet | Yupu Shi Jianbin Xu Xian Du Yi Zhang Fan Zhao Ziwei Tang Le Kang Huiling Du |
| author_sort | Yupu Shi |
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| description | Lithium–sulfur batteries (LSBs) are gaining much attention because they offer a much higher theoretical energy density compared to traditional lithium-ion batteries. However, the cycling performance of LSBs with high sulfur mass loading is poor due to the shuttle effect, limiting the practical application of LSBs. In this work, a unique porous sulfur/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> Mxene@selenium (S/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>@Se) cathode of a LSB is synthesized by a simple hydrothermal method to address these challenges. In this composite, Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> forms a conductive framework and Se is tightly anchored on the framework. The Se inhibits the agglomeration of Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> and prevents the collapse of Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>. The S/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>@Se composite can adsorb lithium polysulfides (LiPSs) and suppresses the shuttle effect and volume changes during cycling, improving the cycling stability of LSBs with high S loading. A high capacity of 812.2 mAh g<sup>−1</sup> at 0.1 C with 5.0 mg cm<sup>−2</sup> sulfur mass loading after 100 cycles is obtained. This work could inspire further research into high-performance S host materials for high-S-loading LSBs. |
| format | Article |
| id | doaj-art-81c467cdadf54503b3a33df3f2ffb2ec |
| institution | Kabale University |
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| language | English |
| publishDate | 2024-12-01 |
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| series | Batteries |
| spelling | doaj-art-81c467cdadf54503b3a33df3f2ffb2ec2024-12-27T14:10:39ZengMDPI AGBatteries2313-01052024-12-01101243010.3390/batteries10120430Facile Synthesis of S/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> Mxene@Se Cathode for High-Sulfur-Loading Lithium–Sulfur BatteriesYupu Shi0Jianbin Xu1Xian Du2Yi Zhang3Fan Zhao4Ziwei Tang5Le Kang6Huiling Du7College of Materials Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, ChinaTianjin Sanyuan Electric Power Group Co., Ltd., Tianjin 300010, ChinaCollege of Materials Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, ChinaSchool of Energy Sciences and Engineering, Nanjing Tech University, Nanjing 211816, ChinaCollege of Materials Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, ChinaCollege of Materials Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, ChinaCollege of Materials Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, ChinaCollege of Materials Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, ChinaLithium–sulfur batteries (LSBs) are gaining much attention because they offer a much higher theoretical energy density compared to traditional lithium-ion batteries. However, the cycling performance of LSBs with high sulfur mass loading is poor due to the shuttle effect, limiting the practical application of LSBs. In this work, a unique porous sulfur/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> Mxene@selenium (S/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>@Se) cathode of a LSB is synthesized by a simple hydrothermal method to address these challenges. In this composite, Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> forms a conductive framework and Se is tightly anchored on the framework. The Se inhibits the agglomeration of Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> and prevents the collapse of Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>. The S/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>@Se composite can adsorb lithium polysulfides (LiPSs) and suppresses the shuttle effect and volume changes during cycling, improving the cycling stability of LSBs with high S loading. A high capacity of 812.2 mAh g<sup>−1</sup> at 0.1 C with 5.0 mg cm<sup>−2</sup> sulfur mass loading after 100 cycles is obtained. This work could inspire further research into high-performance S host materials for high-S-loading LSBs.https://www.mdpi.com/2313-0105/10/12/430seleniumTi<sub>3</sub>C<sub>2</sub>T<sub>x</sub> Mxenecathodelithium–sulfur batterieshigh loading |
| spellingShingle | Yupu Shi Jianbin Xu Xian Du Yi Zhang Fan Zhao Ziwei Tang Le Kang Huiling Du Facile Synthesis of S/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> Mxene@Se Cathode for High-Sulfur-Loading Lithium–Sulfur Batteries Batteries selenium Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> Mxene cathode lithium–sulfur batteries high loading |
| title | Facile Synthesis of S/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> Mxene@Se Cathode for High-Sulfur-Loading Lithium–Sulfur Batteries |
| title_full | Facile Synthesis of S/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> Mxene@Se Cathode for High-Sulfur-Loading Lithium–Sulfur Batteries |
| title_fullStr | Facile Synthesis of S/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> Mxene@Se Cathode for High-Sulfur-Loading Lithium–Sulfur Batteries |
| title_full_unstemmed | Facile Synthesis of S/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> Mxene@Se Cathode for High-Sulfur-Loading Lithium–Sulfur Batteries |
| title_short | Facile Synthesis of S/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> Mxene@Se Cathode for High-Sulfur-Loading Lithium–Sulfur Batteries |
| title_sort | facile synthesis of s ti sub 3 sub c sub 2 sub t sub x sub mxene se cathode for high sulfur loading lithium sulfur batteries |
| topic | selenium Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> Mxene cathode lithium–sulfur batteries high loading |
| url | https://www.mdpi.com/2313-0105/10/12/430 |
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