Controllable TiO2 coating on the nickel-rich layered cathode through TiCl4 hydrolysis via fluidized bed chemical vapor deposition

doi:10.1039/c9ra03087e

	Controllable TiO2 coating on the nickel-rich layered cathode through TiCl4 hydrolysis via fluidized bed chemical vapor deposition
	Li, Xinxin 1,2; Shi, Hebang 2; Wang, Bo 3; Li, Na 1; Zhang, Liqiang 1; Lv, Pengpeng 2,4
刊名	RSC ADVANCES
	2019-06-09
卷号	9 期号:31 页码:17941-17949
ISSN号	2046-2069
DOI	10.1039/c9ra03087e
英文摘要	Surface coating of metal oxides is an effective approach for enhancing the capacity retention of a nickel-rich layered cathode. Current conventional coating techniques including wet chemistry methods and atomic layer deposition are restricted by the difficulty in perfectly balancing the coating quality and scale-up production. Herein, a highly efficient TiO2 coating route through fluidized bed chemical vapor deposition (FBCVD) was proposed to enable scalable and high yield synthesis of a TiO2 coated nickel-rich cathode. The technological parameters including coating time and TiCl4 supply rate were systematically studied, and thus a utility TiO2 deposition rate model was deduced, promoting the controllable TiO2 coating. The FBCVD TiO2 deposition mechanism was fundamentally analyzed based on the TiCl4 hydrolysis principle. The amorphous and uniform TiO2 coating layer is compactly attached on the particle surface, forming a classical core-shell structure. Electrochemical evaluations reveal that the TiO2 coating by FBCVD route indeed improves the capacity retention from 89.08% to 95.89% after 50 cycles.
资助项目	National Natural Science Foundation of China[51602313] ; National Natural Science Foundation of China[11805227] ; Beijing Natural Science Foundation of China-Haidian Special Project[L182065] ; Key Research and Development Project of Shandong Province[2017CXGC0502] ; International Science and Technology Cooperation Project of Shandong Academy of Sciences[2019GHPY17]
WOS关键词	LINI0.6CO0.2MN0.2O2 CATHODE ; ELECTROCHEMICAL PERFORMANCE ; SURFACE MODIFICATION ; HIGH-CAPACITY ; ION ; LINI0.8CO0.1MN0.1O2 ; IMPROVEMENT ; ELECTRODES
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000471914300049
资助机构	National Natural Science Foundation of China ; Beijing Natural Science Foundation of China-Haidian Special Project ; Key Research and Development Project of Shandong Province ; International Science and Technology Cooperation Project of Shandong Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/30029]
专题	中国科学院过程工程研究所
通讯作者	Zhang, Liqiang; Lv, Pengpeng
作者单位	1.China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 3.Qilu Univ Technol, Shandong Acad Sci, Energy Res Inst, Jinan 250014, Shandong, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Xinxin,Shi, Hebang,Wang, Bo,et al. Controllable TiO2 coating on the nickel-rich layered cathode through TiCl4 hydrolysis via fluidized bed chemical vapor deposition[J]. RSC ADVANCES,2019,9(31):17941-17949.
APA	Li, Xinxin,Shi, Hebang,Wang, Bo,Li, Na,Zhang, Liqiang,&Lv, Pengpeng.(2019).Controllable TiO2 coating on the nickel-rich layered cathode through TiCl4 hydrolysis via fluidized bed chemical vapor deposition.RSC ADVANCES,9(31),17941-17949.
MLA	Li, Xinxin,et al."Controllable TiO2 coating on the nickel-rich layered cathode through TiCl4 hydrolysis via fluidized bed chemical vapor deposition".RSC ADVANCES 9.31(2019):17941-17949.