Polymer-derived carbon/nano-silicon/graphite composites for lithium-ion battery anodes with reduced expansion.
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| Title: | Polymer-derived carbon/nano-silicon/graphite composites for lithium-ion battery anodes with reduced expansion. |
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| Authors: | Zheng, Yun1,2 (AUTHOR) zhengyun@jhun.edu.cn, Wu, Jing2,3 (AUTHOR), Zheng, Penglun3 (AUTHOR), Song, Caigen4 (AUTHOR) pvscg@nanoguangbo.com, Ruan, Dianbo1 (AUTHOR) ruandianbo@nbu.edu.cn |
| Source: | Fullerenes, Nanotubes & Carbon Nanostructures. 2026, Vol. 34 Issue 6, p600-612. 13p. |
| Subjects: | Nanosilicon, Graphite composites, Lithium-ion batteries, Carbon-based materials, Composite materials |
| Abstract: | Commercial graphite used in lithium-ion battery anodes has reached its theoretical capacity limit. Polymer-derived carbon, which offers numerous sites for lithium storage, has emerged as a promising alternative to meet the increasing demand for high-energy density batteries. In this study, we investigated polymer pyrolyzed carbon and nano-silicon composites prepared through three methods: liquid-phase mixing (SiC-L), ball mill blending (SiC-S), and further milling with graphite (SiCG). By optimizing the silicon-to-carbon ratio (1:9, 2:8, 3:7, and 4:6), core–shell structured composites Si20C80-L and Si20C80-S with an optimal 2:8 ratio were obtained. The Si20C80-S anode delivered a reversible capacity of 471 mAh g−1 after 200 cycles with a 56% expansion rate. Incorporation of flake graphite produced a hierarchical silicon–carbon–graphite composite (Si20C60G20), achieving 500 mAh g−1 after 200 cycles and reducing the expansion rate to 34%. The improved performance arises from carbon matrix confinement of silicon and an optimized conductive network that enhances structural integrity and lithium storage. This study provides a feasible route toward scalable fabrication of high-stability silicon-based anodes for next-generation lithium-ion batteries. [ABSTRACT FROM AUTHOR] |
| Copyright of Fullerenes, Nanotubes & Carbon Nanostructures is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 193389415 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Polymer-derived carbon/nano-silicon/graphite composites for lithium-ion battery anodes with reduced expansion. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Zheng%2C+Yun%22">Zheng, Yun</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> zhengyun@jhun.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Wu%2C+Jing%22">Wu, Jing</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zheng%2C+Penglun%22">Zheng, Penglun</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Song%2C+Caigen%22">Song, Caigen</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> pvscg@nanoguangbo.com</i><br /><searchLink fieldCode="AR" term="%22Ruan%2C+Dianbo%22">Ruan, Dianbo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> ruandianbo@nbu.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Fullerenes%2C+Nanotubes+%26+Carbon+Nanostructures%22">Fullerenes, Nanotubes & Carbon Nanostructures</searchLink>. 2026, Vol. 34 Issue 6, p600-612. 13p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Nanosilicon%22">Nanosilicon</searchLink><br /><searchLink fieldCode="DE" term="%22Graphite+composites%22">Graphite composites</searchLink><br /><searchLink fieldCode="DE" term="%22Lithium-ion+batteries%22">Lithium-ion batteries</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon-based+materials%22">Carbon-based materials</searchLink><br /><searchLink fieldCode="DE" term="%22Composite+materials%22">Composite materials</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Commercial graphite used in lithium-ion battery anodes has reached its theoretical capacity limit. Polymer-derived carbon, which offers numerous sites for lithium storage, has emerged as a promising alternative to meet the increasing demand for high-energy density batteries. In this study, we investigated polymer pyrolyzed carbon and nano-silicon composites prepared through three methods: liquid-phase mixing (SiC-L), ball mill blending (SiC-S), and further milling with graphite (SiCG). By optimizing the silicon-to-carbon ratio (1:9, 2:8, 3:7, and 4:6), core–shell structured composites Si20C80-L and Si20C80-S with an optimal 2:8 ratio were obtained. The Si20C80-S anode delivered a reversible capacity of 471 mAh g−1 after 200 cycles with a 56% expansion rate. Incorporation of flake graphite produced a hierarchical silicon–carbon–graphite composite (Si20C60G20), achieving 500 mAh g−1 after 200 cycles and reducing the expansion rate to 34%. The improved performance arises from carbon matrix confinement of silicon and an optimized conductive network that enhances structural integrity and lithium storage. This study provides a feasible route toward scalable fabrication of high-stability silicon-based anodes for next-generation lithium-ion batteries. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Fullerenes, Nanotubes & Carbon Nanostructures is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1080/1536383X.2026.2614055 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 13 StartPage: 600 Subjects: – SubjectFull: Nanosilicon Type: general – SubjectFull: Graphite composites Type: general – SubjectFull: Lithium-ion batteries Type: general – SubjectFull: Carbon-based materials Type: general – SubjectFull: Composite materials Type: general Titles: – TitleFull: Polymer-derived carbon/nano-silicon/graphite composites for lithium-ion battery anodes with reduced expansion. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Zheng, Yun – PersonEntity: Name: NameFull: Wu, Jing – PersonEntity: Name: NameFull: Zheng, Penglun – PersonEntity: Name: NameFull: Song, Caigen – PersonEntity: Name: NameFull: Ruan, Dianbo IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: 2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 1536383X Numbering: – Type: volume Value: 34 – Type: issue Value: 6 Titles: – TitleFull: Fullerenes, Nanotubes & Carbon Nanostructures Type: main |
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