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Silicon oxycarbide-tin nanocomposite derived from a UV crosslinked single source preceramic precursor as high-performance anode materials for Li-ion batteries
Abstract
In this work, we report an innovative and facile UV light-assisted synthesis of a nanocomposite based on silicon oxycarbide (SiOC) and tin nanoparticles. SiOC ceramic matrix, containing a conductive free carbon phase, participates in lithium-ion storage, and buffers the volume changes of Li-alloying/de-alloying material. The reported synthesis procedure through a polymer-derived ceramic route involves the preparation of a single-source precursor by UV crosslinking of a preceramic polymer in the presence of a tin precursor. Pyrolysis of this starting precursor at 1000 °C leads to a homogenous distribution of tin nanoparticles (25–35 nm) within the SiOC ceramic matrix, which is crucial for electrochemical stability of the material. SiOC/Sn nanocomposite tested as an anode for Li-ion battery exhibits high reversible capacity values (603 mAh g−1 at the current density of 74.4 mA g−1), outstanding rate capability (524 mAh g−1 at 2232 mA g−1), and superior stability (494 mAh g−1 after 250 charge/discharge cycles).
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Authors (10)
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Pradeep Vallachira Warriam Sasikumar
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Romain Dubey
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Marcel Aebli
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Kostiantyn V. Kravchyk
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Grzegorz Trykowski doktor
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Maksym V. Kovalenko
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Thomas Graule
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Gurdial Blugan
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Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.apmt.2022.101424
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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Applied Materials Today
no. 27,
ISSN: 2352-9407 - Language:
- English
- Publication year:
- 2022
- Bibliographic description:
- Knozowski D., Vallachira Warriam Sasikumar P., Dubey R., Aebli M., Kravchyk K. V., Trykowski G., Kovalenko M. V., Graule T., Wilamowska-Zawłocka M., Blugan G.: Silicon oxycarbide-tin nanocomposite derived from a UV crosslinked single source preceramic precursor as high-performance anode materials for Li-ion batteries// Applied Materials Today -Vol. 27, (2022), s.101424-
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.apmt.2022.101424
- Verified by:
- Gdańsk University of Technology
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