Near zero-strain silicon oxycarbide interphases for stable Li-ion batteries

We investigate silicon oxycarbide nanotubes that incorporate Si, SiC, and silicon oxycarbide phases, which exhibit near zero-strain volume expansion, leading to reduced electrolyte decomposition. The composite effectively accommodates the formation of c -Li 15 Si 4 , as validated by in situ TEM anal...

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Veröffentlicht in:	Chemical communications (Cambridge, England) England), 2023-10, Vol.59 (8), p.11963-11966
Hauptverfasser:	Yeom, Su Jeong, Wi, Tae-Ung, Jung, Soon-Jae, Kim, Myeong Seon, Jeon, Sang-Chae, Lee, Hyun-Wook
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Sprache:	eng
Schlagworte:	Lithium-ion batteries Oxycarbides Rechargeable batteries
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creator	Yeom, Su Jeong Wi, Tae-Ung Jung, Soon-Jae Kim, Myeong Seon Jeon, Sang-Chae Lee, Hyun-Wook
description	We investigate silicon oxycarbide nanotubes that incorporate Si, SiC, and silicon oxycarbide phases, which exhibit near zero-strain volume expansion, leading to reduced electrolyte decomposition. The composite effectively accommodates the formation of c -Li 15 Si 4 , as validated by in situ TEM analyses and electrochemical tests, thereby proposing a promising solution for Li-ion battery anodes. Silicon oxycarbide, as confirmed by in situ TEM, exhibits near-zero volume expansion strain during lithiation, resulting in reduced electrolyte uptake.
doi_str_mv	10.1039/d3cc03799a
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source	Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection
subjects	Lithium-ion batteries Oxycarbides Rechargeable batteries
title	Near zero-strain silicon oxycarbide interphases for stable Li-ion batteries
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