Porous Co3O4@TiO2 core-shell nanofibers as advanced anodes for lithium ion batteries

• Published in: Journal of alloys and compounds Vol. 723; pp. 129 - 138
• Main Authors: Tong, Xiaoling, Zeng, Min, Li, Jing, Liu, Zhanjun
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 05.11.2017; Elsevier BV
• Subjects: Anode; Co3O4; Cobalt oxides; Core-shell structure; Electrodes; Li-ion batteries; Lithium-ion batteries; Metal oxides; Nanofibers; Porous core-shell nanofibers; TiO2; Titanium dioxide; Titanium oxides; Porous core-shell nanofibers; Anode; Li-ion batteries; Co3O4; TiO2
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/j.jallcom.2017.06.209

Metal oxide materials possess splendid application prospect in lithium ions battery. In this work, one-dimensional porous Co3O4@TiO2 core-shell nanofibers (Co3O4@TiO2 CSNFs) electrode material is synthesized via a convenient hydrothermal method combined with hydrolysis method. This novel structure with sufficient available space would buffer the volume variation of Co3O4 and facilitate the mobility of Li+ during cycling, which endows Co3O4@TiO2 CSNFs with excellent electrochemical performances, such as good cyclability (632 mAh g−1 at 0.2 C and 525 mAh g−1 at 0.5 C after 100 cycles) and superior rate performance (∼359 mAh g−1 at 2 C). •Co3O4@TiO2 has been synthesized via a simple method.•Co3O4@TiO2 possesses one-dimensional porous core-shell nanofibers structure.•This novel structure endows Co3O4@TiO2 with excellent electrochemical performances.