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

文献类型：期刊论文

作者Qiao, Lixin1,2; Cui, Zili2; Chen, Bingbing2; Xu, Gaojie2; Zhang, Zhonghua2; Ma, Jun2; Du, Huiping2; Liu, Xiaochen2; Huang, Suqi3; Tang, Kun1,2
刊名CHEMICAL SCIENCE
出版日期2018-04-14
卷号9期号:14页码:3451-3458
ISSN号2041-6520
DOI10.1039/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)
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.

入库方式： OAI收割

来源：青岛生物能源与过程研究所

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