期刊
CERAMICS INTERNATIONAL
卷 42, 期 1, 页码 598-606出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2015.08.153
关键词
Mesoporous nanosphere; Rutile TiO2/C composite; Electrode material; Lithium-ion battery
Hierarchical mesoporous ruffle TiO2 nanospheres were successfully synthesized via a simple low-temperature template-free method. The ruffle TiO2 electrode showed poor electrochemical anodic performance in a lithium-ion battery In order to improve the performance, conductive polyaniline was synthesized and coated on rutile TiO2 nanospheres via in-situ polymerization and chemical etching. After carbonization, the TiO2/C composite electrode showed more stable cyclability and a higher rate performance. Additionally, the amorphous carbon layer provided an effective pathway for charge transport, leading to a lower charge-transfer resistance and a higher lithium-ion diffusion coefficient compared to those of untreated ruffle. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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