Electrochemical characterization of poly(vinylidene fluoride-co-hexafluoro propylene) based electrospun gel polymer electrolytes incorporating room temperature ionic liquids as green electrolytes for lithium batteries

2014 ◽  
Vol 262 ◽  
pp. 77-82 ◽  
Author(s):  
Prasanth Raghavan ◽  
Xiaohui Zhao ◽  
Hyunji Choi ◽  
Du-Hyun Lim ◽  
Jae-Kwang Kim ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Lithium Batteries ◽  
Polymer Electrolytes ◽  
Room Temperature ◽  
Vinylidene Fluoride ◽  
Electrochemical Characterization ◽  
Room Temperature Ionic Liquids ◽  
Gel Polymer Electrolytes ◽  
Poly Vinylidene Fluoride

Preparation and Characterization of Modified PVDF-g-PSSA Membrane

2010 ◽  
Vol 152-153 ◽  
pp. 44-50 ◽  
Author(s):  
Gui Bao Guo ◽  
Er Ding Han ◽  
Sheng Li An
Keyword(s):  
Relative Humidity ◽  
Sodium Silicate ◽  
Room Temperature ◽  
Proton Exchange Membrane ◽  
Vinylidene Fluoride ◽  
Proton Exchange ◽  
Poly Vinylidene Fluoride ◽  
Relative Humidity Range ◽  
Exchange Membrane

A new method based on a solution graft technique was used to prepare poly (vinylidene fluoride) grafted polystyrene sulfonated acid (PVDF-g-PSSA) proton exchange membrane. Polystyrene is grafted into PVDF modified by plain sodium silicate (Na4SiO4). There is a linear relationship between the degree of grafting and the content of Na4SiO4. Fourier transform infrared spectroscopy is used to characterize changes of the membrane's microstructures after grafting and sulfonation. The morphology of the membrane's microstructures after grafting and sulfonation is studied by scanning electrolytic microscope (SEM). The effect of plain sodium silicate (Na4SiO4) concentration and relative humidity on the conductivity of the electrolyte was investigated by the impedance at room temperature. The results show that the styrene has been grafted into PVDF. The conductivity of PVDF-g-PSSA electrolyte doped 10% plain sodium silicate (Na4SiO4) is 0.016 S/cm at room temperature. The conductivity of the electrolyte changes slightly at a relative humidity range of 20%-70%. The weightlessness of PVDF-g-PSSA electrolyte heated to 40°C was less than 2%, which indicated that water capacity was good.

Electrochemical Properties of PEO-Based Polymer Electrolytes Blended with Different Room Temperature Ionic Liquids

2007 ◽  
Vol 249-250 (1) ◽  
pp. 183-189 ◽  
Author(s):  
Yeon Hwa Kim ◽  
Gouri Cheruvally ◽  
Jae Won Choi ◽  
Jou Hyeon Ahn ◽  
Ki Won Kim ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Electrochemical Properties ◽  
Polymer Electrolytes ◽  
Room Temperature ◽  
Room Temperature Ionic Liquids
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