Molecular self-assembly of a nanorod N-Li4Ti5O12/TiO2/C anode for superior lithium ion storage

doi:10.1039/c8ta05860a

	Molecular self-assembly of a nanorod N-Li4Ti5O12/TiO2/C anode for superior lithium ion storage
	Luo, Sainan 1; Zhang, Pengcheng 1; Yuan, Tao 1,2; Ruan, Jiafeng 1; Peng, Chengxin 1,2; Pang, Yuepeng 1,2; Sun, Hao 1,2; Yang, Junhe 1,2; Zheng, Shiyou 1,2
刊名	Journal of Materials Chemistry A
	2018
卷号	6 期号:32 页码:15755-15761
ISSN号	20507488
DOI	10.1039/c8ta05860a
英文摘要	Spinel lithium titanate (Li4Ti5O12, LTO) is one of the most appealing anode materials for lithium-ion batteries (LIBs) due to its long cycle life and high safety performance. However, its low intrinsic electronic conductivity limits its high rate capability. Herein, we develop a novel one-pot in situ molecular self-assembly approach to prepare a dual N- and anatase-TiO2- modified Li4Ti5O12/C nanorod material (NT-LTO/C). Polypyrrole (PPy), as a pivotal carbon and nitrogen source, is introduced to confine the morphology and particle size of the NT-LTO/C anode. Due to the synergistic effects of the multilevel particle structure, uniform carbon coating, N doping, anatase TiO2 pseudopotential effect and such benefits, the NT-LTO/C electrode delivers a high reversible capacity of 196.3 mA h g-1 at 0.5C, and it maintains 105.5 mA h g-1 even at an ultrahigh rate of 100C with progressive cycling of more than 3000 cycles. In addition, the three electrode pouch full-cell shows much smaller polarization than the pristine one. This novel and facile molecular self-assembly method has broad advanced functional material applications including for ceramics, polymer/carbon-based metal alloys and inorganic non-metallic materials. © 2018 The Royal Society of Chemistry.
出版者	Royal Society of Chemistry
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/25147]
专题	中国科学院上海硅酸盐研究所
作者单位	1.School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai; 200093, China; 2.Shanghai Innovation Institute for Materials, Shanghai; 200444, China
推荐引用方式 GB/T 7714	Luo, Sainan,Zhang, Pengcheng,Yuan, Tao,et al. Molecular self-assembly of a nanorod N-Li4Ti5O12/TiO2/C anode for superior lithium ion storage[J]. Journal of Materials Chemistry A,2018,6(32):15755-15761.
APA	Luo, Sainan.,Zhang, Pengcheng.,Yuan, Tao.,Ruan, Jiafeng.,Peng, Chengxin.,...&Zheng, Shiyou.(2018).Molecular self-assembly of a nanorod N-Li4Ti5O12/TiO2/C anode for superior lithium ion storage.Journal of Materials Chemistry A,6(32),15755-15761.
MLA	Luo, Sainan,et al."Molecular self-assembly of a nanorod N-Li4Ti5O12/TiO2/C anode for superior lithium ion storage".Journal of Materials Chemistry A 6.32(2018):15755-15761.