Chemical Evolution of LiCoO2 and NaHSO4 center dot H2O Mixtures with Different Mixing Ratios During Roasting Process

doi:10.1007/s40242-016-5490-2

	Chemical Evolution of LiCoO2 and NaHSO4 center dot H2O Mixtures with Different Mixing Ratios During Roasting Process
	Wang Dahui 1; Wen Hao 1; Chen Huaijing 2; Yang Yujiao 1; Liang Hongyan 1
刊名	CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
	2016-08
卷号	32 期号:4 页码:674-677
关键词	Spent lithium-ion battery LiCoO2 Sulfating roasting Chemical evolution
ISSN号	1005-9040
DOI	10.1007/s40242-016-5490-2
英文摘要	Mixtures of NaHSO4 center dot H2O and LiCoO2 extracted from spent lithium-ion batteries were prepared with molar ratios of 1:1, 1:2 and 1:3. The chemical evolution of the LiCoO2 and NaHSO4 center dot H2O mixtures during the roasting process was investigated by means of thermogravimetric analysis and differential scanning calorimetry (TG-DSC), X-ray diffraction(XRD), scanning electron microscopy(SEM), and X-ray photoelectron spectroscopy (XPS). The results show that the chemical reactions in the LiCoO2 and NaHSO4 center dot H2O mixtures proceed during the roasting process. The Li element in the product of the roasting process is in the form of LiNa(SO4). With the increase of the proportion of NaHSO4 center dot H2O in the mixtures, the Co element evolves as follows: LiCoO2 -> Co3O4 -> Na6Co(SO4)(4)-> Na2Co(SO4)(2). The roasting products exhibit dense structures and irregular shapes, and the bonding energy of Co increases.
资助项目	National Natural Science Foundation of China[51264027] ; National Basic Research Program of China[2012CB722806]
WOS研究方向	Chemistry
语种	英语
出版者	HIGHER EDUCATION PRESS
WOS记录号	WOS:000381329900029
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33637]
专题	材料科学与工程学院理学院
通讯作者	Wang Dahui
作者单位	1.Lanzhou Univ Technol, State Key Lab Advance Proc & Recycling Nonferrous, Lanzhou 730050, Peoples R China 2.Lanzhou Univ Technol, Coll Sci, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Wang Dahui,Wen Hao,Chen Huaijing,et al. Chemical Evolution of LiCoO2 and NaHSO4 center dot H2O Mixtures with Different Mixing Ratios During Roasting Process[J]. CHEMICAL RESEARCH IN CHINESE UNIVERSITIES,2016,32(4):674-677.
APA	Wang Dahui,Wen Hao,Chen Huaijing,Yang Yujiao,&Liang Hongyan.(2016).Chemical Evolution of LiCoO2 and NaHSO4 center dot H2O Mixtures with Different Mixing Ratios During Roasting Process.CHEMICAL RESEARCH IN CHINESE UNIVERSITIES,32(4),674-677.
MLA	Wang Dahui,et al."Chemical Evolution of LiCoO2 and NaHSO4 center dot H2O Mixtures with Different Mixing Ratios During Roasting Process".CHEMICAL RESEARCH IN CHINESE UNIVERSITIES 32.4(2016):674-677.