Effect of nano-clay on ionic conductivity and electrochemical properties of poly(vinylidene fluoride) based nanocomposite porous polymer membranes and their application as polymer electrolyte in lithium ion batteries

2013 ◽  
Vol 49 (2) ◽  
pp. 307-318 ◽  
Author(s):  
Raghavan Prasanth ◽  
Nageswaran Shubha ◽  
Huey Hoon Hng ◽  
Madhavi Srinivasan
Keyword(s):  
Ionic Conductivity ◽  
Electrochemical Properties ◽  
Lithium Ion Batteries ◽  
Polymer Electrolyte ◽  
Vinylidene Fluoride ◽  
Polymer Membranes ◽  
Lithium Ion ◽  
Porous Polymer ◽  
Nano Clay ◽  
Poly Vinylidene Fluoride

scholarly journals Enhanced ionic conductivity in halloysite nanotube-poly(vinylidene fluoride) electrolytes for solid-state lithium-ion batteries

RSC Advances ◽  
2018 ◽  
Vol 8 (60) ◽  
pp. 34232-34240 ◽  
Author(s):  
Peiqi Lun ◽  
Zilong Chen ◽  
Zhenbao Zhang ◽  
Shaozao Tan ◽  
Dengjie Chen
Keyword(s):  
Solid State ◽  
Ionic Conductivity ◽  
Lithium Ion Batteries ◽  
Vinylidene Fluoride ◽  
Lithium Ion ◽  
Special Structure ◽  
Halloysite Nanotube ◽  
Poly Vinylidene Fluoride

The special structure of HNTs and the further formation of amorphous PVDF contribute to the enhancement of the Li+transfer.

Preparation and characterization of PVDF-MG49-NH4CF3SO3 based solid polymer electrolyte

e-Polymers ◽  
2014 ◽  
Vol 14 (2) ◽  
pp. 115-120 ◽  
Author(s):  
N. Ataollahi ◽  
A. Ahmad ◽  
T.K. Lee ◽  
A.R. Abdullah ◽  
M.Y.A. Rahman
Keyword(s):  
Ionic Conductivity ◽  
Polymer Electrolyte ◽  
Vinylidene Fluoride ◽  
Lithium Ion ◽  
Linear Sweep Voltammetry ◽  
Solid Polymer ◽  
Conductivity Enhancement ◽  
Temperature Dependence Of Conductivity ◽  
Poly Vinylidene Fluoride ◽  
Ion Conducting

AbstractThe ionic conductivity of ammonium-based solid polymer films of poly(vinylidene fluoride) (PVDF) blended with MG49, a graft of natural rubber and poly(methyl methacrylate), with various compositions of ammonium triflate NH4CF3SO3, was investigated. As a result, 30 wt.% of NH4CF3SO3-doped polymer electrolyte exhibits the highest ionic conductivity at 6.32×10-4 S/cm at room temperature. The conductivity enhancement can be attributed to the increase in the number of NH4+ as charge carriers. The significance of the blend is the increase of one order in ionic conductivity as compared with pure PVDF electrolyte. The temperature dependence of conductivity of the electrolyte does not obey the Arrhenius law. However, the conductivity increases with temperature and it reached 1.56×10-3 S/cm at 363 K. X-ray diffraction reveals a decrease in crystallinity of the electrolyte upon the addition of NH4CF3SO3 salt. This result is supported by scanning electron microscopy. Linear sweep voltammetry demonstrates that the anodic stability of the electrolyte is up to 4 V. Therefore, the electrolyte shows good compatibility with high-voltage electrode. Hence, this electrolyte system can be a prospective candidate as lithium-ion conducting electrolyte for lithium batteries.

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