Citation: JIA Guo-Feng, LI Fa-Qiang, PENG Zheng-Jun, ZHU Zeng-Hu, GONG Yan, WANG Qing-Lei. Synthesis and Structural Characterizations of a New Lithium Salt for Lithium-ion Batteries[J]. Chinese Journal of Structural Chemistry, ;2015, 34(8): 1197-1202. doi: 10.14102/j.cnki.0254-5861.2011-0646 shu

Synthesis and Structural Characterizations of a New Lithium Salt for Lithium-ion Batteries

JIA Guo-Feng ^a,b ,
LI Fa-Qiang ^a,, ,
PENG Zheng-Jun ^a ,
ZHU Zeng-Hu ^a ,
GONG Yan ^a,c ,
WANG Qing-Lei ^a,c

a.
a. Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, China;
b.
b. College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China;
c.
c. University of Chinese Academy of Sciences, Beijing 100039, China

Corresponding author: LI Fa-Qiang,
Received Date: 19 January 2015
Available Online: 6 March 2015
Fund Project: This project was supported by the National Natural Science Foundation of China (210011111) (210011111)

A novel crystal [(CH₃O)₂CO]₃Li₂[C₂BF₂O₄]₂ was synthesized and fully characterized by FT-IR and single-crystal X-ray diffraction analysis. It crystallizes in monoclinic system, P2₁/c space group, with a=8.1749(2), b=10.7449(2), c=12.8665(3)Å, β=94.654(2)°, V=1126.45(4)Å³, Z=2, D_c=1.644 g/cm, F(000)=568, μ=1.498 mm^-1, M_r=557.77 g/mol, the final R=0.0334 and wR=0.0903. The structure analysis revealed that each Li atom is three-coordinated and adopts 1.5 O atoms of two different dimethyl carbonates and one O atom of C₂BF₂O₄^-. Thermal stability and infrared spectra analysis were studied and discussed.
- lithium salt,
- solid-organic solvent synthesis,
- crystallization,
- crystal structure,
- lithium-ion battery
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