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Published on: November 10, 2014
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Near zero-strain silicon oxycarbide interphases for stable Li-ion batteries
Su Jeong Yeom1, Tae-Ung Wi1,2, Soon-Jae Jung1
1School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea. hyunwooklee@unist.ac.kr.
Abstract
None:
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-Li15Si4, as validated by in situ TEM analyses and electrochemical tests, thereby proposing a promising solution for Li-ion battery anodes.

