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Polymer derived SiOC/Sn nanocomposites from a low-cost single source precursor as anode materials for lithium storage applications
Abstract
Metal- based materials capable of lithium (Li) alloy formation are key to realization of the next generation of high-energy density anodes for Li-ion batteries, owing to their high storage capacity. Designing a good sup- porting matrix is essential for homogeneously nesting these metallic nanodomains, to effectively utilize their high capacity while tackling the volume expansion issues. Silicon oxycarbides (SiOC), obtained via a polymer derived approach, have recently gained interest as efficient host matrices. However, the high price and limited availability of the precursors for these ceramics present a challenge for their use at a commercial level. Sn nanoparticles, measuring less than 100 nm in size, are formed in-situ within the amorphous SiOC matrix using an economical single-source precursor. The polymeric precursor was indigenously developed from a novel, low cost vinyl functionalized polysiloxane and tin dioleate as the Sn source. Tin dioleate at different wt%, viz. 33–56 %, was uniformly crosslinked with the Q-T polysiloxane and was pyrolysed at 1000 ◦C in an argon atmosphere to obtain the SiOC/Sn nanocomposites. The electrochemical characterization of SiOC/Sn ceramic nanocomposite anodes exhibit outstanding specific capacities of 650 and 750 mAh g 1 at 372 and 18.6 mA g 1, respectively after 400 charge/discharge cycles.
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Authors (12)
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Gurdial Blugan
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Natalia Kovalska
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Pradeep V.W. Sasikumar
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Wim J. Malfait
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Silvia Paz
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Piotr Madajski
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Mirosław Sawczak dr hab. inż.
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Matthias M. Koebel
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Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.est.2024.111676
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Keywords
Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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Journal of Energy Storage
no. 89,
ISSN: 2352-152X - Language:
- English
- Publication year:
- 2024
- Bibliographic description:
- Blugan G., Kovalska N., Knozowski D., Sasikumar P. V., Malfait W. J., Paz S., Madajski P., Leśniewski M., Sawczak M., Santhosh B., Wilamowska-Zawłocka M., Koebel M. M.: Polymer derived SiOC/Sn nanocomposites from a low-cost single source precursor as anode materials for lithium storage applications// Journal of Energy Storage -Vol. 89, (2024), s.111676-
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.est.2024.111676
- Sources of funding:
-
- COST_FREE
- Verified by:
- Gdańsk University of Technology
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