Design of orderly carbon coatings for SiO anodes promoted by TiO2 toward high performance lithium-ion battery

Dou, Fei and Shi, Liyi and Song, Pingan and Chen, Guorong and An, Juan and Liu, Hongjiang and Zhang, Dengsong (2018) Design of orderly carbon coatings for SiO anodes promoted by TiO2 toward high performance lithium-ion battery. Chemical Engineering Journal, 338. pp. 488-495. ISSN 1385-8947

Abstract

Silicon monoxide (SiO) has emerged as one promising anode material for lithium-ion battery owing to its high theoretical capacity and relatively small volume change compared with silicon based anode. However, poor conductivity extremely restricts its specific capacity and cycling stability of SiO, C-SiO is most considered to be addressed this issue. Despite that, the effect of the orderly arrangements of carbon coatings on the overall electrochemical performance of SiO anode remains unclear. It is more important to explore the structure of carbon coatings on the electrochemical properties of silicon based anode. Herein, we have much improved orderly array of carbon coatings for C-SiO by introducing 3% TiO2, and evidenced by Raman spectroscopy and HRTEM. The electrochemical results show that the TC-SiO with 3% TiO2 exhibits striking advantages in cycling stability, high rate charge/discharge and interfacial stability properties compared with C-SiO with disorder carbon coatings. This work provides a new strategy for further improving conductivity and interfacial stability of C-Si based anode materials.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published version cannot be displayed due to copyright restrictions.
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials
Date Deposited: 13 Feb 2019 06:02
Last Modified: 15 Feb 2019 01:35
Uncontrolled Keywords: SiO anode; orderly carbon coatings; TiO2; lithium ion battery
Fields of Research : 09 Engineering > 0912 Materials Engineering > 091299 Materials Engineering not elsewhere classified
Socio-Economic Objective: B Economic Development > 86 Manufacturing > 8699 Other Manufacturing > 869999 Manufacturing not elsewhere classified
Identification Number or DOI: 10.1016/j.cej.2018.01.048
URI: http://eprints.usq.edu.au/id/eprint/35561

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