Preparation of a Silicon/MXene Composite Electrode by a High-Pressure Forming Method and Its Application in Li<sup>+</sup>-Ion Storage
The main component of high-capacity silicon-based electrodes is silicon powder, which necessitates intricate processing to minimize volume growth and powder separation while guaranteeing the ideal Si content. This work uses the an situ high-pressure forming approach to create an MXene/<i>m<...
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MDPI AG
2025-01-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/30/2/297 |
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| author | Yonghao Liu Dawei Zhao Lujia Cong Yanfeng Han Mingdi Fu Xiaoxin Wu Junkai Zhang |
| author_facet | Yonghao Liu Dawei Zhao Lujia Cong Yanfeng Han Mingdi Fu Xiaoxin Wu Junkai Zhang |
| author_sort | Yonghao Liu |
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| description | The main component of high-capacity silicon-based electrodes is silicon powder, which necessitates intricate processing to minimize volume growth and powder separation while guaranteeing the ideal Si content. This work uses the an situ high-pressure forming approach to create an MXene/<i>m</i>-Si/MXene composite electrode, where MXene refers to Ti<sub>3</sub>C<sub>2</sub>T<sub>X</sub>, and <i>m</i>-Si denotes two-phase mixed nano-Si particles. The sandwich shape promotes silicon’s volume growth and stops active particles from spreading. The conductive structure of Ti<sub>3</sub>C<sub>2</sub>T<sub>X</sub> MXene increases the efficiency of charge transfer while reducing internal resistance. After 100 cycles, the composite electrode’s original capacity of 1310.9 mAh g<sup>−1</sup> at a current density of 0.5 A g<sup>−1</sup> is maintained at 781.0 mAh g<sup>−1</sup>. These findings lay the foundation for further investigations into Si matrix composite electrodes. |
| format | Article |
| id | doaj-art-d7fc9a54131c483e8e9fdae49097c7cf |
| institution | Kabale University |
| issn | 1420-3049 |
| language | English |
| publishDate | 2025-01-01 |
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| series | Molecules |
| spelling | doaj-art-d7fc9a54131c483e8e9fdae49097c7cf2025-01-24T13:43:28ZengMDPI AGMolecules1420-30492025-01-0130229710.3390/molecules30020297Preparation of a Silicon/MXene Composite Electrode by a High-Pressure Forming Method and Its Application in Li<sup>+</sup>-Ion StorageYonghao Liu0Dawei Zhao1Lujia Cong2Yanfeng Han3Mingdi Fu4Xiaoxin Wu5Junkai Zhang6Heilongjiang Provincial Key Laboratory of Oilfield Applied Chemistry and Technology, School of Mechatronics Engineering, Daqing Normal University, Daqing 163712, ChinaHeilongjiang Provincial Key Laboratory of Oilfield Applied Chemistry and Technology, School of Mechatronics Engineering, Daqing Normal University, Daqing 163712, ChinaHeilongjiang Provincial Key Laboratory of Oilfield Applied Chemistry and Technology, School of Mechatronics Engineering, Daqing Normal University, Daqing 163712, ChinaKey Laboratory of Functional Materials Physics and Chemistry, Ministry of Education, College of Physics, Jilin Normal University, Changchun 130103, ChinaKey Laboratory of Functional Materials Physics and Chemistry, Ministry of Education, College of Physics, Jilin Normal University, Changchun 130103, ChinaKey Laboratory of Functional Materials Physics and Chemistry, Ministry of Education, College of Physics, Jilin Normal University, Changchun 130103, ChinaKey Laboratory of Functional Materials Physics and Chemistry, Ministry of Education, College of Physics, Jilin Normal University, Changchun 130103, ChinaThe main component of high-capacity silicon-based electrodes is silicon powder, which necessitates intricate processing to minimize volume growth and powder separation while guaranteeing the ideal Si content. This work uses the an situ high-pressure forming approach to create an MXene/<i>m</i>-Si/MXene composite electrode, where MXene refers to Ti<sub>3</sub>C<sub>2</sub>T<sub>X</sub>, and <i>m</i>-Si denotes two-phase mixed nano-Si particles. The sandwich shape promotes silicon’s volume growth and stops active particles from spreading. The conductive structure of Ti<sub>3</sub>C<sub>2</sub>T<sub>X</sub> MXene increases the efficiency of charge transfer while reducing internal resistance. After 100 cycles, the composite electrode’s original capacity of 1310.9 mAh g<sup>−1</sup> at a current density of 0.5 A g<sup>−1</sup> is maintained at 781.0 mAh g<sup>−1</sup>. These findings lay the foundation for further investigations into Si matrix composite electrodes.https://www.mdpi.com/1420-3049/30/2/297siliconMXenehigh pressurelithium ion |
| spellingShingle | Yonghao Liu Dawei Zhao Lujia Cong Yanfeng Han Mingdi Fu Xiaoxin Wu Junkai Zhang Preparation of a Silicon/MXene Composite Electrode by a High-Pressure Forming Method and Its Application in Li<sup>+</sup>-Ion Storage Molecules silicon MXene high pressure lithium ion |
| title | Preparation of a Silicon/MXene Composite Electrode by a High-Pressure Forming Method and Its Application in Li<sup>+</sup>-Ion Storage |
| title_full | Preparation of a Silicon/MXene Composite Electrode by a High-Pressure Forming Method and Its Application in Li<sup>+</sup>-Ion Storage |
| title_fullStr | Preparation of a Silicon/MXene Composite Electrode by a High-Pressure Forming Method and Its Application in Li<sup>+</sup>-Ion Storage |
| title_full_unstemmed | Preparation of a Silicon/MXene Composite Electrode by a High-Pressure Forming Method and Its Application in Li<sup>+</sup>-Ion Storage |
| title_short | Preparation of a Silicon/MXene Composite Electrode by a High-Pressure Forming Method and Its Application in Li<sup>+</sup>-Ion Storage |
| title_sort | preparation of a silicon mxene composite electrode by a high pressure forming method and its application in li sup sup ion storage |
| topic | silicon MXene high pressure lithium ion |
| url | https://www.mdpi.com/1420-3049/30/2/297 |
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