Li3.9Cr0.3Ti4.8O12 nanofibers with one-dimensional (1D) morphology and excellent electrical conductivity are prepared via a facile electrospinning technique. The as-prepared Li3.9Cr0.3Ti4.8O12 nanofibers exhibit excellent lithium storage performance with superior rate capability and low-temperature performance: 140 mAh g(-1) at 10 C and 91 mAh g(-1) at 50 C rates at room temperature, 100 mAh g(-1) at 1 C rate at 20 degrees C. The superior electrochemical performance of Li-3.9Cr0.3Ti4.8O12 nanofibers is attributed to the 1D nano-architectures composed of nanocrystals and the reduced grain size in Li3.9Cr0.3Ti4.8O12, both of which facilitate the Li+ ion transport. The Li3.9Cr0.3Ti4.8O12 nanofibers also have a high Ti3+ concentration and an in-situ surface coating layer of Li2CrO4, which could enhance intraparticle and interparticle electronic conductivities of Li3.9Cr0.3Ti4.8O12 grains, respectively. (C) 2017 Elsevier B.V. All rights reserved.

• Journal: Journal Of Alloys And Compounds
• Volume: 701
• Issue:
• Pages: 99-106
• ISSN: 0925-8388
• DOI: 10.1016/j.jallcom.2017.01.067
• Year: 2017
• Number:
• Type: