New Room-temperature Molten Salt Based on OZO of Neutral Molecule with LiTFSI

Abstract

Abstract: The new room-temperature molten salt was prepared based on LiTFSI[LiNC(SO₂CF₃)₂] with OZO(C₃H₅NO₂) which were not reported in literature. Its thermal and electrochemical properties were studied by differential scanning calorimetry, ac impedance spectroscopy and cyclic voltammertry respectively. The results indicated that the structure symmetry of the molecule was depressed and the extent of charges delocalization was expanded, because of introducing oxygen atom of differential electronegativity in OZO molecule. DSC analysis showed that the LiTFSI-OZO molten salt has the excellent thermal stability and its eutectic temperature is below about 223.15 K. Meanwhile, the conductivity of LiTFSI-OZO molten salt at a molar ratio of 1:4.5 is 0.75×10^-3 S/cm at 298.15 K and 3.50×10^-3 S/cm at 333.15 K. CV analysis showed that the electrochemical window of the sample is about 4 V.

Key words: Room-temperature molten salt, 1,3-Oxazolidone, LiTFSI, Thermal property, Electrochemical property

CLC Number:

O646

TrendMD:

CHEN Ren-Jie, WU Feng, LUAN He-Lin, WU Meng, YU Hui-Fang . New Room-temperature Molten Salt Based on OZO of Neutral Molecule with LiTFSI[J]. Chem. J. Chinese Universities, 2004, 25(11): 2116.

References

Related Articles 15

[1]	LIANG Pingping, LIU Shuai, LI Hongyi, DING Yadan, WEN Xiaokun, LIU Junping, HONG Xia. Self-floating Porous PVDF-CNT Microbeads for Highly Efficient Solar-driven Interfacial Water Evaporation [J]. Chem. J. Chinese Universities, 2021, 42(8): 2689.
[2]	WANG Xianwei, KE Hongjun, YUAN Hang, LU Gewu, LI Liying, MENG Xiangsheng, SONG Shulin, WANG Zhen. High Temperature Resistant and Soluble Polyimide Resins and Their Composites [J]. Chem. J. Chinese Universities, 2021, 42(6): 2041.
[3]	XU Xiaozhou, LIU Yi, HE Minhui, MO Song, LAN Bangwei, ZHAI Lei, FAN Lin. Effect of Copolymerization Structure and Molecular Weight on Melt Fluidity and Thermal Properties of Thermoplastic Polyimide Resins [J]. Chem. J. Chinese Universities, 2021, 42(3): 919.
[4]	BAI Yanqun,WANG Cunguo,LI Xue,FAN Wenqi,SONG Penghao,GU Yuanchun,LIU Faqian,LIU Guangye. Preparation and Electrochemical Properties of S@C Composite Material with High Capacity and Ordered Alignment of Channels ^† [J]. Chem. J. Chinese Universities, 2020, 41(6): 1306.
[5]	DENG Anqiang,LUO Yongchun,XIA Yuanhua,PENG Sihui,MA Weiqin,ZHAO Xudong,YANG Yang,HOU Xiaodong. Effect of Annealing Treatment on Structure and Electrochemical Properties of New Mg-free Y_0.7La_0.3Ni_3.25Al_0.1Mn_0.15Hydrogen Storage Alloys ^† [J]. Chem. J. Chinese Universities, 2020, 41(1): 145.
[6]	SONG Li, LIN Jiaxiang, HUANG Dinghai. New Thermal Features of Ethylene-based Polyolefins with Different Chain Architectures as Investigated by Step Scan Differential Scanning Calorimetry Method [J]. Chem. J. Chinese Universities, 2019, 40(8): 1740.
[7]	CHEN Yaoyan,ZHAO Xin,WANG Zhe,DONG Jie,ZHANG Qinghua. Effects of Preparation Conditions on the Morphologies, Structures and Electrochemical Properties of MXene^† [J]. Chem. J. Chinese Universities, 2019, 40(6): 1249.
[8]	YIN Ping,YAN Hongqiang,CHENG Jie,FANG Zhengping. Synthesis and Properties of a Novel Bio-based Benzoxazine^† [J]. Chem. J. Chinese Universities, 2019, 40(5): 1071.
[9]	ZHAO Lei,LUO Yongchun,DENG Anqiang,JIANG Wanting. Hydrogen Storage and Electrochemical Properties of the Mg-free A₂B₇-type La_1-_xY_xNi_3.25Mn_0.15Al_0.1 Alloys with Superlattice Structure^† [J]. Chem. J. Chinese Universities, 2018, 39(9): 1993.
[10]	ZHANG Shupeng, CHENG Youxing, REN Lei, WEN Kai, LÜ Xiaolin, YE Shefang, ZHOU Xi. Reparation and Photothermal Properties of Prussian Blue Nanoparticles with Different Morphologies^† [J]. Chem. J. Chinese Universities, 2018, 39(2): 359.
[11]	ZHANG Bo, HE Jun, HUA Zhengshen, WANG Xin, PENG Huifen. Effect of S $O 4 2 -$ Doping on Electrochemical Properties of the Nasicon Li₃Fe₂(PO₄)₃ Cathode^† [J]. Chem. J. Chinese Universities, 2017, 38(1): 108.
[12]	HE Yannan, YU Zhiqiang. Effect of Surface Organic Functional Modification of ZrB₂ Nanosize Multiphase Ceramics on the Thermal Properties of Its Composites^† [J]. Chem. J. Chinese Universities, 2015, 36(9): 1846.
[13]	ZHOU Jianping, JIA Shijun, FU Wanli, ZHAO Haifang, LIU Zhilei. Curing of Epoxy Resin by UV-light Triggered Descending Frontal Polymerization^† [J]. Chem. J. Chinese Universities, 2015, 36(5): 1019.
[14]	WANG Xue, YANG Lili, WANG Chunzhong, CHEN Gang, WEI Yingjin. Preparation and Characterizations of Zn-doped Li_1.13Ni_0.3-_xMn_0.57Zn_xO₂ Cathode Materials for Lithium Ion Batteries^† [J]. Chem. J. Chinese Universities, 2015, 36(4): 733.
[15]	WANG Zhiming, FENG Ying, LI Hui, SONG Xiaohui, LU Ping. Preparation and Characterization of Phenanthroimidazole-based Derivatives with Ether Linkage at N1-Phenyl^† [J]. Chem. J. Chinese Universities, 2014, 35(8): 1691.