NDLI: A novel Et4NBF4 and LiPF6 blend salts electrolyte for supercapacitor battery

Content Provider	Springer Nature Link
Author	Liu, Shengqi Liu, Suqin Huang, Kelong Liu, Jiansheng Li, Yongkun Fang, Dong Wang, Hongmei Xia, Yufei
Copyright Year	2011
Abstract	Electrolytes of 1 M blend salts (LiPF6 and tetraethylammonium tetrafluoroborate, Et4NBF4) have been investigated in supercapacitor battery system with composite LiMn2O4 and activated carbon (AC) cathode, and Li4Ti5O12 anode. The results obtained with the blend salts electrolytes are compared with those obtained with cells build using standard 1 M LiPF6 dissolved in ethylene carbonate + dimethyl carbonate + ethyl (methyl) carbonate (EC + DMC + EMC, 1:1:1 wt.%) as electrolyte. It is found that the blend salts electrolyte performs better on both electrochemical and galvanostatic cycling stability, especially cycled at 4 C rate. When the concentration of LiPF6 is 0.2 M and Et4NBF4 is 0.8 M, the capacity retention of the battery is 96.23% at 4 C rate after 5,000 cycles, much higher than that of the battery with standard 1 M LiPF6 electrolyte, which is only 62.35%. These results demonstrate that the blend salts electrolyte can improve the galvanostatic cycling stability of the supercapacity battery. Electrolyte of 0.2 M LiPF6 + 0.8 M Et4NBF4 in EC + DMC + EMC (1:1:1 wt.%) is a promising electrolyte for (LiMn2O4 + AC)/Li4Ti5O12.
Starting Page	1631
Ending Page	1634
Page Count	4
File Format	PDF
ISSN	14328488
Journal	Journal of Solid State Electrochemistry
Volume Number	16
Issue Number	4
e-ISSN	14330768
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-10-28
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Blend salts electrolyte Supercapacitor battery Et4NBF4 (LiMn2O4 + AC)/Li4Ti5O12 Physical Chemistry Characterization and Evaluation of Materials Energy Storage Condensed Matter Physics Analytical Chemistry Electrochemistry
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Materials Science Electrical and Electronic Engineering Electrochemistry

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