Preparation and characterization of lithium hexafluorophosphate for lithium-ion battery electrolyte

2010 ◽  
Vol 20 (2) ◽  
pp. 344-348 ◽  
Author(s):  
Jian-wen LIU ◽  
Xin-hai LI ◽  
Zhi-xing WANG ◽  
Hua-jun GUO ◽  
Wen-jie PENG ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Battery Electrolyte ◽  
Lithium Hexafluorophosphate

Preparation and Characterization of a New Type Lithium Hexafluorophosphate Complex

2011 ◽  
Vol 236-238 ◽  
pp. 552-555 ◽  
Author(s):  
Hai Lan Yang ◽  
Zhi Ye Zhang ◽  
Lin Yang ◽  
Ben He Zhong ◽  
Ling Yun Li ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Chemical Analysis ◽  
Lithium Ion Battery ◽  
Lithium Fluoride ◽  
Lithium Ion ◽  
Molecular Formula ◽  
H Nmr ◽  
New Type ◽  
Lithium Hexafluorophosphate

In this paper, a new type lithium hexafluorophosphate (LiPF6) complex was prepared with a new method using phosphorus pentachlorine (PCl5), lithium fluoride (LiF) and 1,2-dimethoxyethane (C4H10O2). The structure of the complex was carefully characterized by FTIR, TG-DTG,1H NMR and31P NMR. FTIR results indicate that the synthesized complex is consisted of LiPF6and C4H10O2. Chemical analysis shows that the content of LiPF6in the complex is about 45%, which could infer that the mole ratio of LiPF6and LiPF6(C4H10O2)2in the complex is 1:2. The results of1H NMR and31P NMR further confirm the composition of the complex and determine the structure. The molecular formula of the LiPF6complex is LiPF6(C4H10O2)2. Thermal analysis shows that the strong decomposition peaks of the complex appear at 75°C and 175°C. LiPF6(C4H10O2)2may be used in the electrolyte of the lithium ion battery which 1,2-dimethoxyethane is permitted or broke down into LiPF6after further preparation.

scholarly journals Fabrication and Characterization of Nylon 66/PAN Nanofibrous Film Used as Separator of Lithium-Ion Battery

Polymers ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 1984
Author(s):  
Yu-Hsun Nien ◽  
Chih-Ning Chang ◽  
Pao-Lin Chuang ◽  
Chun-Han Hsu ◽  
Jun-Lun Liao ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Batteries ◽  
Lithium Battery ◽  
Coulombic Efficiency ◽  
Electronic Devices ◽  
Lithium Ion ◽  
Nylon 66 ◽  
Excellent Electrochemical Performance ◽  
Fabrication And Characterization

In recent years, portable electronic devices have flourished, and the safety of lithium batteries has received increasing attention. In this study, nanofibers were prepared by electrospinning using different ratios of nylon 66/polyacrylonitrile (PAN), and their properties were studied and compared with commercial PP separators. The experimental results show that the addition of PAN in nylon 66/PAN nanofibrous film used as separator of lithium-ion battery can enhance the porosity up to 85%. There is also no significant shrinkage in the shrinkage test, and the thermal dimensional stability is good. When the Li/LiFePO4 lithium battery is prepared by nylon 66/PAN nanofibrous film used as separator, the capacitor can be maintained at 140 mAhg−1 after 20 cycles at 0.1 C, and the coulombic efficiency is still maintained at 99%, which has excellent electrochemical performance.

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