文献类型：期刊文献

英文题名：One-pot synthesis of SiOx@C@TiO2 precursor for lithium-ion battery anodes with high electrochemical performance

作者：Wei, Bing[1,2];Zhang, Binbin[1,2];Yue, Chengyan[1,2];Zhang, Jiacheng[1,2];Chen, Jiajia[1,2];Hua, Lin[2];Wang, Xingjun[1,2];Yu, Guangsuo[1,2];Chen, Xueli[1,2];Wang, Fuchen[1,2];Fan, Maohong[3]

机构：[1]East China Univ Sci & Technol, State Key Lab Coal Liquificat Gasificat & Utilizat, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Resources & Environm Engn, Shanghai 200237, Peoples R China;[3]Univ Wyoming, Dept Chem & Biomed Engn, Laramie, WY 82071, USA

年份：2026

卷号：162

外文期刊名：JOURNAL OF ENERGY STORAGE

收录：;EI(收录号：20261420440895);WOS:【SCI-EXPANDED(收录号:WOS:001741282800001)】；

语种：英文

外文关键词：Cycling performance; One-pot synthesis precursor; SiOx anode

摘要：Silicon oxide (SiOx) is a very promising anode material, but it is limited by its by low ionic conductivity and large volume changes. While carbon coating and titanium dioxide (TiO2) compositing have been individually explored as effective modification strategies, their synergistic integration via a simple and scalable process remains challenging. Here, we propose a one-pot synthesis of a SiOx@C@TiO2 precursor, where the residual reactants (unreacted Tetrabutyl titanate and ethanolamine) and hydrolyzed n-Butanol act as an in-situ carbon source, thereby avoiding additional reagents carbon source or a chemical vapor deposition (CVD) step. This approach enables the formation of a dual-modification layer composed of conductive carbon and mechanically robust TiO2, which collectively enhance electronic conductivity, buffer volume expansion, and stabilize the solidelectrolyte interphase (SEI). The resulting SiOx@C@TiO2 anode delivers a high initial specific capacity of 1438 mAh g- 1 and maintains a reversible capacity of 828 mAh g- 1 after 500 cycles at 0.5 A g- 1. Moreover, the dual coating significantly improves lithium-ion transport kinetics and effectively mitigates electrode expansion and surface cracking upon extended cycling. This work highlights the synergistic effects of C and TiO2 dual modification and offers a facile, scalable route to high-performance SiOx-based anodes.