ISSN 1608-4039 (Print)
ISSN 1680-9505 (Online)


For citation:

Yudina A. V., Ignatova A. A., Shuvalova N. I., Martynenko V. M., Yarmolenko O. V. Influence of additives of EMIBF4 and BMIBF4 ionic liquids on the properties of network polymer electrolytes for lithium power sources. Electrochemical Energetics, 2014, vol. 14, iss. 3, pp. 158-163. DOI: 10.18500/1608-4039-2014-14-3-158-163, EDN: TQCJPX

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Russian
Article type: 
Article
EDN: 
TQCJPX

Influence of additives of EMIBF4 and BMIBF4 ionic liquids on the properties of network polymer electrolytes for lithium power sources

Autors: 
Yudina Alena Vladimirovna, Institute of Problems of Chemical Physics of RAS
Ignatova A. A., Saratov State University
Shuvalova Natal'ya Ivanovna, Institute of Problems of Chemical Physics of RAS
Martynenko Vyacheslav Mikhaylovich, Institute of Problems of Chemical Physics of RAS
Yarmolenko O. V., Institute of Problems of Chemical Physics of RAS
Abstract: 

The effect of 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIBF4) and 1-butyl-3-methylimidazolium tetrafluoroborate (BMIBF4) ionic liquids on the properties of the polymer electrolyte based on polyethylene glycol diacrylate (PEG-DA) and LiBF4 salt was studied. Research was carried out by spray-mass spectroscopy, differential scanning calorimetry, and electrochemical impedance spectroscopy technique in the temperature range from -40 to 120 °C. The best polymer electrolyte composition is the ratio of PEG-DA: LiBF4: EMIBF4 = 1: 1: 6.5 mole with a conductivity of 2.55\cdot 10-3 S/cm at 20 °C, 2.20\cdot 10-4 S/cm at -40 °C and the glass transition temperature -103 °C.

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Received: 
15.09.2014
Accepted: 
30.09.2014
Published: 
30.09.2014