Construction of Protein‐Like Helical‐Entangled Structure in Lithium‐Ion Silicon Anode Binders via Helical Recombination and Hofmeister Effect
Abstract In this study, a novel gelatin‐xanthan gum composite binder is successfully developed with a protein‐like helical‐entangled network structure through thermo‐responsive and Hofmeister effect to improve the cycling stability of silicon anodes in lithium‐ion batteries. As the temperature chang...
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| Format: | Article |
| Language: | English |
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Wiley
2025-05-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202412769 |
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| author | Shiyuan Dai Fei Huang Jinglun Yan Yuan Yuan Sun Chao Chen HaiDong Li |
| author_facet | Shiyuan Dai Fei Huang Jinglun Yan Yuan Yuan Sun Chao Chen HaiDong Li |
| author_sort | Shiyuan Dai |
| collection | DOAJ |
| description | Abstract In this study, a novel gelatin‐xanthan gum composite binder is successfully developed with a protein‐like helical‐entangled network structure through thermo‐responsive and Hofmeister effect to improve the cycling stability of silicon anodes in lithium‐ion batteries. As the temperature changes, the molecular chains of xanthan gum and gelatin undergo de‐helixing, intertwining, and co‐helixing, ultimately self‐assembling into a protein‐like spatial structure. Furthermore, immersing in Hofmeister salt solution enhances the degree of helical entanglement, significantly improving strength and toughness. This novel helical‐entangled structure absorbs and dissipates the stress and strain caused by silicon volume expansion through repeated bending, twisting, and stretching, similar to protein spatial structures, thereby maintaining the integrity of the silicon anode and enhancing its cycling stability. The silicon anode with the optimized binder exhibits high initial Coulombic efficiency, favorable rate performance, and long‐term cycling stability. At a current density of 0.5 A g⁻¹, the silicon anode has a specific capacity of 1779.8 mAh g⁻¹ after 300 cycles, with a capacity retention rate of 80.65%. This study demonstrates the feasibility of natural polymers forming complex 3D network structures through self‐assembly and intermolecular forces, providing a new approach for the design of silicon anode binders. |
| format | Article |
| id | doaj-art-2de20a97df4a4274af99e9522ec41c35 |
| institution | DOAJ |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-2de20a97df4a4274af99e9522ec41c352025-08-20T03:20:10ZengWileyAdvanced Science2198-38442025-05-011220n/an/a10.1002/advs.202412769Construction of Protein‐Like Helical‐Entangled Structure in Lithium‐Ion Silicon Anode Binders via Helical Recombination and Hofmeister EffectShiyuan Dai0Fei Huang1Jinglun Yan2Yuan Yuan Sun3Chao Chen4HaiDong Li5School of Materials Science and EngineeringZhejiang Sci‐Tech UniversityNo. 928, No. 2 Street, Xiasha Higher Education Park Hangzhou ChinaNanotechnology Research InstituteJiaxing UniversityNo. 899 Guangqiong Road Jiaxing ChinaNanotechnology Research InstituteJiaxing UniversityNo. 899 Guangqiong Road Jiaxing ChinaCollege of Chemistry and Chemical EngineeringYangzhou University88 South Daxue Road Yangzhou ChinaNanotechnology Research InstituteJiaxing UniversityNo. 899 Guangqiong Road Jiaxing ChinaNanotechnology Research InstituteJiaxing UniversityNo. 899 Guangqiong Road Jiaxing ChinaAbstract In this study, a novel gelatin‐xanthan gum composite binder is successfully developed with a protein‐like helical‐entangled network structure through thermo‐responsive and Hofmeister effect to improve the cycling stability of silicon anodes in lithium‐ion batteries. As the temperature changes, the molecular chains of xanthan gum and gelatin undergo de‐helixing, intertwining, and co‐helixing, ultimately self‐assembling into a protein‐like spatial structure. Furthermore, immersing in Hofmeister salt solution enhances the degree of helical entanglement, significantly improving strength and toughness. This novel helical‐entangled structure absorbs and dissipates the stress and strain caused by silicon volume expansion through repeated bending, twisting, and stretching, similar to protein spatial structures, thereby maintaining the integrity of the silicon anode and enhancing its cycling stability. The silicon anode with the optimized binder exhibits high initial Coulombic efficiency, favorable rate performance, and long‐term cycling stability. At a current density of 0.5 A g⁻¹, the silicon anode has a specific capacity of 1779.8 mAh g⁻¹ after 300 cycles, with a capacity retention rate of 80.65%. This study demonstrates the feasibility of natural polymers forming complex 3D network structures through self‐assembly and intermolecular forces, providing a new approach for the design of silicon anode binders.https://doi.org/10.1002/advs.202412769binderhelical‐entangled networkHofmeister effectLithium‐ion batterySilicon anodeThermo‐Responsive |
| spellingShingle | Shiyuan Dai Fei Huang Jinglun Yan Yuan Yuan Sun Chao Chen HaiDong Li Construction of Protein‐Like Helical‐Entangled Structure in Lithium‐Ion Silicon Anode Binders via Helical Recombination and Hofmeister Effect Advanced Science binder helical‐entangled network Hofmeister effect Lithium‐ion battery Silicon anode Thermo‐Responsive |
| title | Construction of Protein‐Like Helical‐Entangled Structure in Lithium‐Ion Silicon Anode Binders via Helical Recombination and Hofmeister Effect |
| title_full | Construction of Protein‐Like Helical‐Entangled Structure in Lithium‐Ion Silicon Anode Binders via Helical Recombination and Hofmeister Effect |
| title_fullStr | Construction of Protein‐Like Helical‐Entangled Structure in Lithium‐Ion Silicon Anode Binders via Helical Recombination and Hofmeister Effect |
| title_full_unstemmed | Construction of Protein‐Like Helical‐Entangled Structure in Lithium‐Ion Silicon Anode Binders via Helical Recombination and Hofmeister Effect |
| title_short | Construction of Protein‐Like Helical‐Entangled Structure in Lithium‐Ion Silicon Anode Binders via Helical Recombination and Hofmeister Effect |
| title_sort | construction of protein like helical entangled structure in lithium ion silicon anode binders via helical recombination and hofmeister effect |
| topic | binder helical‐entangled network Hofmeister effect Lithium‐ion battery Silicon anode Thermo‐Responsive |
| url | https://doi.org/10.1002/advs.202412769 |
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