An Electrochemically Anodic Study of Anatase TiO2 Tuned through Carbon-Coating for High-performance Lithium-ion Battery. (10th May 2015)

• Record Type: Journal Article
• Authors: Chen, Jun; Hou, Hongshuai; Yang, Yingchang; Song, Weixin; Zhang, Yan; Yang, Xuming; Lan, Qing; Ji, Xiaobo
• Is Part Of: Electrochimica acta. Volume 164(2015)
• Page Start: 330
• Page End: 336
• Publication Date: 2015-05-10
• Subjects: Titanium dioxide -- carbon-coated -- lithium-ion battery -- anode -- electrochemistry; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2015.02.202
• Languages: English
• ISSNs: 0013-4686

Abstract

Highlights: Carbon-coated anatase TiO2 nanoparticles were prepared via a novel and facile in-situ methodology. TiO2 /C nanocomposites exhibite high capacity and notable rate performances as anode in lithium-ion batteries. Such composite can offer great potential promise in large-scale energy storage applications. Abstract: A novel and facile in-situ methodology has been developed to prepare well carbon-coated anatase titanium dioxide (TiO2 ) nanoparticles. The hydrolysis of tetrabutyl titanate has been effectively controlled in a collosol of N-methyl-2-pyrrolidone dissolved with polyvinylidene fluoride. The as-resulted carbon-dispersed TiO2 nanoparticles distributed in ranges from 20 to 30 nm in diameter have been obtained with a carbon content of 11.7 wt%. This nanocomposite utilized as anode materials in lithium-ion battery can deliver a high reversible specific capacity of 218 mAh g −1 at the current density of 0.2 C (33.5 mA g −1 ), and still exhibit 100 mAh g −1 at 10 C (1.68 A g −1 ), illustrating notable high-rate performances for the potential application in fast charge/discharge batteries.