Yang, F., Deng, P., He, H. et al. (12 more authors) (2024) Rapid Joule heating-induced welding of silicon and graphene for enhanced lithium-ion battery anodes. Chemical Engineering Journal, 494. 152828. ISSN 1385-8947
Abstract
In the pursuit of enhanced energy storage solutions, the application of silicon-based anode materials faces significant hurdles, primarily stemming from the rapid capacity degradation during battery cycles. This study introduces a novel and efficient method for fabricating Si/graphene composites (F-Si@rGO), enhancing the performance and longevity of silicon-based anodes. Utilizing ultra-high-speed thermal treatment, this technique controls the thermal interaction between carbon and silicon phases, leading to the formation of silicon carbide “riveting points” that firmly anchor silicon nanoparticles within the graphene matrix. This novel method effectively minimizes the problems of phase segregation, which are caused by varying degrees of wettability alteration in the two phases during conventional heat treatments, and guarantees a robust integration of graphene and silicon. This integration results in homogeneous charging and outstanding structural stability of the composites, over extended cycles of use. The resulting Si/graphene composites exhibit exceptional electrochemical performance, achieving a high initial capacity of 1141.3 mAh gˉ¹ at 1C and maintaining a capacity of 894.95 mAh gˉ¹ after 1000 cycles with minimal degradation (0.0216 % per cycle). This synthesis method, notable for its speed and scalability, offers a potential advancement in battery material technology, suggesting a path towards more resilient and efficient energy storage solutions.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2024, Elsevier. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. This is an author produced version of an article published in the Chemical Engineering Journal. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Silicon-based anode; Energy storage material; Lithium-ion batteries; Joule heating; Silicon carbide; Welding |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 01 Jul 2024 15:57 |
Last Modified: | 01 Jul 2024 15:57 |
Published Version: | https://www.sciencedirect.com/science/article/pii/... |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.cej.2024.152828 |
Sustainable Development Goals: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:214170 |
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