Improving Na+ Diffusion and Performance of P2-Type Layered Na0.6Li0.07Mn0.66Co0.17Ni0.17O2 by Expanding the Interplanar Spacing

doi:10.1021/acsami.0c14931

	Improving Na+ Diffusion and Performance of P2-Type Layered Na0.6Li0.07Mn0.66Co0.17Ni0.17O2 by Expanding the Interplanar Spacing
	Qiu, Jinxu 1,4; Chen, Boran 3; Hou, Hongying 4; Wang, Xiaojuan 1; Liu, Xiaoyang 1; Li, Zaihuan 1; Liu, Tingting 1; Chen, Ruicong 1; Wang, Shuai 1; Li, Bao 1
刊名	ACS APPLIED MATERIALS & INTERFACES
	2020-10-28
卷号	12 期号:43 页码:48669-48676
关键词	P2-type layered oxide nanoplate-structural precursor Rietveld refinement Na-ion diffusion interplanar spacing soft-templated synthesis
ISSN号	1944-8244
DOI	10.1021/acsami.0c14931
英文摘要	Because of their high reversible capacity and wide operation voltage window, P2-type layered transition metal oxides are considered as one type of potential cathode candidate for sodium-ion batteries. However, they still suffer from low kinetics, phase degeneration, and ambiguous mechanism of Na+ diffusion. Here, we synthesized a P2-type Na0.6Li0.07Mn0.66Co0.17Ni0.17O2 with a high Na+ diffusion performance by sintering a nanoplate-structural precursor with alkali metal salt and proposed a possible mechanism for improving Na+ diffusion. The as-prepared P2-type layered oxide presents a quasi-hexagon shape and demonstrates a discharge capacity of 87 mAh g(-1) at a current density of 875 mA g(-1) (5 C rate), twice that of the sample synthesized from a non-nanoplate particle precursor. Rietveld refinement and results of X-ray photoelectron spectroscopy reveal the probable mechanism that the expanded interplanar spacing along the c-axis orientation would facilitate Na+ diffusion during Na+ intercalation/deintercalation processes, and the expanded interplanar spacing may arise from a high oxidation state of transition metal ions.
资助项目	National Natural Science Foundation of China[51672071] ; National Natural Science Foundation of China[51802085] ; National Natural Science Foundation of China[51772296] ; "111" Project[D17007] ; Education department funding of Liaoning province[LJGD2019001] ; Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology[191010-K] ; Guangxi Key Laboratory of Electrochemical Energy Materials[2019001] ; National students' platform for innovation and entrepreneurship training program[201910476010]
WOS关键词	SODIUM-ION BATTERIES ; P2-O2 PHASE-TRANSITION ; CATHODE MATERIALS ; HIGH-VOLTAGE ; HIGH-CAPACITY ; SUBSTITUTION ; OXIDES ; LI1.2MN0.54NI0.13CO0.13O2 ; NA2/3NI1/3MN2/3O2 ; MECHANISM
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000586868400042
资助机构	National Natural Science Foundation of China ; "111" Project ; Education department funding of Liaoning province ; Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology ; Guangxi Key Laboratory of Electrochemical Energy Materials ; National students' platform for innovation and entrepreneurship training program
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/42746]
专题	中国科学院过程工程研究所
通讯作者	Li, Bao; Dai, Dongmei; Wang, Bao
作者单位	1.Henan Normal Univ, Collaborat Innovat Ctr Henan Prov Green Mfg Fine, Key Lab Green Chem Media & React, Minist Educ,Sch Chem & Chem Engn, Xinxiang 453007, Henan, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China 3.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China 4.Kunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Qiu, Jinxu,Chen, Boran,Hou, Hongying,et al. Improving Na+ Diffusion and Performance of P2-Type Layered Na0.6Li0.07Mn0.66Co0.17Ni0.17O2 by Expanding the Interplanar Spacing[J]. ACS APPLIED MATERIALS & INTERFACES,2020,12(43):48669-48676.
APA	Qiu, Jinxu.,Chen, Boran.,Hou, Hongying.,Wang, Xiaojuan.,Liu, Xiaoyang.,...&Wang, Bao.(2020).Improving Na+ Diffusion and Performance of P2-Type Layered Na0.6Li0.07Mn0.66Co0.17Ni0.17O2 by Expanding the Interplanar Spacing.ACS APPLIED MATERIALS & INTERFACES,12(43),48669-48676.
MLA	Qiu, Jinxu,et al."Improving Na+ Diffusion and Performance of P2-Type Layered Na0.6Li0.07Mn0.66Co0.17Ni0.17O2 by Expanding the Interplanar Spacing".ACS APPLIED MATERIALS & INTERFACES 12.43(2020):48669-48676.