Preparation and Characterization of LiBF4 by Gradient Heating Dehydration

CORC > 青海盐湖研究所 > 中国科学院青海盐湖研究所 > 青海盐湖研究所知识仓储

	Preparation and Characterization of LiBF4 by Gradient Heating Dehydration
	Zhou Yuan 1; Zhang Xinyue 1,2,3; Nian Hongen 1; Pang Yuna 1,2; Wang Hongbin 1,2
刊名	ACTA CHIMICA SINICA
	2010-07-28
卷号	68 期号:14 页码:1399-1403
关键词	Libf4 Electrolyte Lithium-ion Battery Lithium Salt Aqueous Solution Process
文献子类	Article
英文摘要	LiBF4 was prepared via aqueous solution process and its properties were examined by X-ray diffraction (XRD), IR, and thermogravimetry and differential thermogravimetry (TG-DTG). H3BO3, HF and Li2CO3 were used as starting materials to prepare LiBF4 solution, followed by concentrating, crystallizing and dehydrating to obtain LiBF4. The incomplete dehydration caused by traditional rapid heating was avoided through gradient heating dehydration. The obtained LiBF4 crystal belongs to the hexagonal system with space group P3(1)2(1), confirmed by its XRD spectrum which conformed to powder diffraction file (PDF) card 00-040-1431. The infrared absorption bands of the obtained LiBF4 were observed, one band located at 1050 cm(-1), and splitted off two bands which are located at 1055 and 1038 cm(-1); the other band located at 650 cm(-1); attributed to nu(3) (as) vibration and delta(3) (s) vibration, respectively. In TG-DTG spectrum, a weak decomposition peak was observed at 341.31 K and a strong decomposition peak appeared at 516.48 K, the weight loss rate was 72.33%. The decomposition was regarded as the LiBF4 decomposed into LiF and BF3.
WOS关键词	LOW-TEMPERATURE PERFORMANCE ; LITHIUM-ION BATTERIES ; THERMAL-BEHAVIOR ; ELECTROLYTE ; LI ; TETRAFLUOROBORATE ; CORROSION ; ALUMINUM ; SALT
WOS研究方向	Chemistry
语种	英语
WOS记录号	WOS:000281685100009
内容类型	期刊论文
源URL	[http://ir.isl.ac.cn/handle/363002/5939]
专题	青海盐湖研究所_青海盐湖研究所知识仓储青海盐湖研究所_盐湖资源与化学实验室
作者单位	1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhou Yuan,Zhang Xinyue,Nian Hongen,et al. Preparation and Characterization of LiBF4 by Gradient Heating Dehydration[J]. ACTA CHIMICA SINICA,2010,68(14):1399-1403.
APA	Zhou Yuan,Zhang Xinyue,Nian Hongen,Pang Yuna,&Wang Hongbin.(2010).Preparation and Characterization of LiBF4 by Gradient Heating Dehydration.ACTA CHIMICA SINICA,68(14),1399-1403.
MLA	Zhou Yuan,et al."Preparation and Characterization of LiBF4 by Gradient Heating Dehydration".ACTA CHIMICA SINICA 68.14(2010):1399-1403.