A promising bulky anion based lithium borate salt for lithium metal batteries

doi:10.1039/c8sc00041g

CORC > 青岛生物能源与过程研究所 > 中国科学院青岛生物能源与过程研究所 > 仿生能源与储能系统团队

	A promising bulky anion based lithium borate salt for lithium metal batteries
	Qiao, Lixin 1,2; Cui, Zili 2; Chen, Bingbing 2; Xu, Gaojie 2; Zhang, Zhonghua 2; Ma, Jun 2; Du, Huiping 2; Liu, Xiaochen 2; Huang, Suqi 3; Tang, Kun 1,2
刊名	CHEMICAL SCIENCE
	2018-04-14
卷号	9 期号:14 页码:3451-3458
ISSN号	2041-6520
DOI	10.1039/c8sc00041g
文献子类	Article
英文摘要	A new salt of lithium trifluoro(perfluoro-tert-butyloxyl) borate (LiTFPFB) which possesses a bulky fluoroalkoxyl functional group in the borate anion has been synthesized for high energy lithium metal batteries. The presence of the bulky fluoroalkoxyl group in the borate anion of LiTFPFB can facilitate ion dissociation and in situ generate a protective film on the Li anode. As a result, LiTFPFB possesses a dramatically improved ionic conductivity and LiFePO4/Li cells using 1.0 M LiTFPFB/PC electrolyte exhibit improved capacity retention especially upon cycling at elevated temperature (60 degrees C). Ex situ surface analysis reveals that a protective film is formed on the lithium metal anode, which can inhibit further decomposition of the electrolyte. Furthermore, the LiTFPFB based electrolyte also imparts an excellent cycling performance to LiCoO2/Li metal cells for 500 cycles. The outstanding performance of the LiTFPFB salt demonstrates that it is a very promising baseline salt for next generation lithium metal batteries.
WOS关键词	LI-ION BATTERIES ; FLUOROETHYLENE CARBONATE ; DELOCALIZED POLYANION ; ELECTROLYTES ; PERFORMANCE ; CELLS
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000429203500004
资助机构	National Natural Science Foundation for Distinguished Young Scholars of China(51625204) ; National Natural Science Foundation of China(51502319) ; Shandong Provincial Natural Science Foundation(ZR2016BQ18) ; Youth Innovation Promotion Association of CAS(2016193)
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn/handle/337004/10781]
专题	青岛生物能源与过程研究所_仿生能源与储能系统团队
通讯作者	Cui, Zili; Zhou, Xinhong; Cui, Guanglei
作者单位	1.Qingdao Univ Sci Technol, Coll Chem & Mol Engn, Qingdao 266042, Peoples R China 2.Chinese Acad Sci, Qingdao Ind Energy Storage Res Inst, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China 3.Qingdao Univ, Sch Chem & Chem Engn, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Qiao, Lixin,Cui, Zili,Chen, Bingbing,et al. A promising bulky anion based lithium borate salt for lithium metal batteries[J]. CHEMICAL SCIENCE,2018,9(14):3451-3458.
APA	Qiao, Lixin.,Cui, Zili.,Chen, Bingbing.,Xu, Gaojie.,Zhang, Zhonghua.,...&Cui, Guanglei.(2018).A promising bulky anion based lithium borate salt for lithium metal batteries.CHEMICAL SCIENCE,9(14),3451-3458.
MLA	Qiao, Lixin,et al."A promising bulky anion based lithium borate salt for lithium metal batteries".CHEMICAL SCIENCE 9.14(2018):3451-3458.