@article{Miao2026, 
author = {Junqian Miao and Jiangjiang Zhang and Yaran Liu and Wenwen Ma and Yang Ding and Shiqiang Cui},
title = {Dual-functional SiOC: Achieving record 86% initial Coulombic efficiency in Li-ion batteries and dendrite-free Li metal anodes via (110)-textured deposition},
year = {2026},
journal = {Nano Research},
volume = {19},
number = {2},
pages = {94908284},
keywords = {SiOC, Li-ion battery, initial Coulombic efficiency, Li metal battery},
url = {https://www.sciopen.com/article/10.26599/NR.2025.94908284},
doi = {10.26599/NR.2025.94908284},
abstract = {Silicon oxycarbide (SiOC) holds promise as a high-capacity anode material for lithium-ion batteries, but its performance has been consistently limited by a low initial Coulombic efficiency (ICE). In this work, a carbon-coated SiOC composite (C/SiOC) was synthesized via chemical vapor deposition (CVD), exhibiting a significantly increased proportion of reversible Si–O–C units (94.7%) and a reduced surface area (3.629 m2·g−1). As a result, the C/SiOC anode delivered stable cycling over 800 cycles and achieved a remarkably high ICE of 86%. Notably, the C/SiOC composite also served as an effective host for lithium metal deposition, reducing the nucleation overpotential to 1.7 mV and promoting (110)-textured Li growth, thereby suppressing dendritic formation. This synergistic functionality resulted in excellent long-term stability in half cells (780 cycles at 1.0 mA·cm−2), symmetric cells (10,000 h at 1.0 mA·cm−2), and full cells (800 cycles at 1.0 C), highlighting the strong potential of C/SiOC for advanced lithium-based battery systems, including anode-free architectures.}
}