Effect of lithium triflate salt concentration in methyl cellulose-based solid polymer electrolytes

2012 ◽  
Author(s):  
Nursyahida Binti Sahli ◽  
Ab Malik Marwan Bin Ali
Keyword(s):  
Salt Concentration ◽  
Polymer Electrolytes ◽  
Methyl Cellulose ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Lithium Triflate

Proton Conducting Carboxy Methyl Cellulose Solid Polymer Electrolytes Doped with Citric Acid

2014 ◽  
Vol 895 ◽  
pp. 130-133 ◽  
Author(s):  
W.F. Ng ◽  
Mui Nyuk Chai ◽  
M.I.N. Isa
Keyword(s):  
Citric Acid ◽  
Polymer Electrolytes ◽  
Methyl Cellulose ◽  
Proton Conductor ◽  
Transference Number ◽  
Ionic Mobility ◽  
Solid Polymer Electrolytes ◽  
Electrical Impedance Spectroscopy ◽  
Solid Polymer ◽  
Casting Technique

Novel solid polymer electrolytes containing carboxy methylcellulose (CMC) are prepared based on the vary concentration (0 - 45 wt. %) of citric acid (CA) via solution casting technique. The ion conductivity is studied by electrical impedance spectroscopy and the ionic mobility, μ and the diffusion coefficient, D is investigated by transference number measurement. The highest ionic conductivity at room temperature (303K) is 4.38 x 10-7 S cm-1 for 40 wt. % CA. The values of μ+ and D+ were higher than μ- and D- respectively, implying that the CMC-CA solid polymer electrolytes are proton conductor.

Structural and ion transport properties of lithium triflate/poly(vinylidene fluoride-co-hexafluoropropylene)-based polymer electrolytes

2016 ◽  
Vol 49 (6) ◽  
pp. 513-526 ◽  
Author(s):  
Asheesh Kumar ◽  
Raghunandan Sharma ◽  
M Suresh ◽  
Malay K Das ◽  
Kamal K Kar
Keyword(s):  
Polymer Electrolytes ◽  
Vinylidene Fluoride ◽  
Complex Impedance ◽  
Weight Ratio ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Spectroscopic Techniques ◽  
Lithium Triflate ◽  
Increase With Increase ◽  
Poly Vinylidene Fluoride

Polymer electrolytes consisting of poly(vinylidene fluoride-co-hexafluoropropylene) in combination with lithium triflate (LiCF3SO3) salt of varying concentration have been prepared using the conventional solution casting technique in the argon atmosphere. Structural electrical characterizations of the synthesized electrolytes have been performed using various imaging and spectroscopic techniques. The DC conductivities determined by complex impedance plots reveal gradual increase with increase in salt concentration up to a particular limit and decrease subsequently. The maximum DC conductivity obtained at 300 K is 1.64 × 10−4 Scm−1 for the electrolyte with a polymer to salt weight ratio of 1:1.8. The temperature-dependent conductivity followed a mixed Arrhenius and Vogel–Tamman–Fulcher type behaviour for the polymer electrolytes. From the Summerfield master curve plot, the conductivity of the solid polymer electrolytes is found to depend not only on ion dynamics but also on the segmental mobility of the polymer chains.

scholarly journals Compatible Solid Polymer Electrolyte Based on Methyl Cellulose for Energy Storage Application: Structural, Electrical, and Electrochemical Properties

Polymers ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2257 ◽  
Author(s):  
Shujahadeen B. Aziz ◽  
Iver Brevik ◽  
Muhamad H. Hamsan ◽  
M. A. Brza ◽  
Muaffaq M. Nofal ◽  
...  
Keyword(s):  
Energy Storage ◽  
Polymer Electrolyte ◽  
Polymer Electrolytes ◽  
Methyl Cellulose ◽  
Linear Sweep Voltammetry ◽  
Transference Number ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
High Concentration ◽  
Green Polymer

Compatible green polymer electrolytes based on methyl cellulose (MC) were prepared for energy storage electrochemical double-layer capacitor (EDLC) application. X-ray diffraction (XRD) was conducted for structural investigation. The reduction in the intensity of crystalline peaks of MC upon the addition of sodium iodide (NaI) salt discloses the growth of the amorphous area in solid polymer electrolytes (SPEs). Impedance plots show that the uppermost conducting electrolyte had a smaller bulk resistance. The highest attained direct current DC conductivity was 3.01 × 10−3 S/cm for the sample integrated with 50 wt.% of NaI. The dielectric analysis suggests that samples in this study showed non-Debye behavior. The electron transference number was found to be lower than the ion transference number, thus it can be concluded that ions are the primary charge carriers in the MC–NaI system. The addition of a relatively high concentration of salt into the MC matrix changed the ion transfer number from 0.75 to 0.93. From linear sweep voltammetry (LSV), the green polymer electrolyte in this work was actually stable up to 1.7 V. The consequence of the cyclic voltammetry (CV) plot suggests that the nature of charge storage at the electrode–electrolyte interfaces is a non-Faradaic process and specific capacitance is subjective by scan rates. The relatively high capacitance of 94.7 F/g at a sweep rate of 10 mV/s was achieved for EDLC assembly containing a MC–NaI system.

Conductivity and Structural Studies of PEMA/ENR-50 Blend with LiCF3SO3 Salt

2015 ◽  
Vol 754-755 ◽  
pp. 157-160
Author(s):  
Nursyazwani Sukri ◽  
N.S. Mohamed ◽  
R.H.Y. Subban
Keyword(s):  
Polymer Electrolytes ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Structural Studies ◽  
X Ray Diffraction ◽  
Lithium Triflate ◽  
X Ray ◽  
Solution Cast ◽  
Polymer Host ◽  
Cast Technique

Solid polymer electrolytes (SPEs) comprising of a blend of Poly (ethyl methacrylate) (PEMA) and Epoxidized natural rubber-50 (ENR50) as polymer host and lithium triflate (LiCF3SO3) as dopant were prepared by solution cast technique. The blend based polymer electrolytes have a fixed PEMA/ENR50 ratio of 70:30 by wt. % as at this ratio ENR-50 imparted stable mechanical properties to the otherwise fragile PEMA. The incorporation of LiCF3SO3into the blend is found to increase the conductivity of PEMA/ENR50. The highest conductivity achieved was 3.64 x 10-5Scm-1at 40wt. % LiCF3SO3. The structure of the samples was investigated by X-ray diffraction and the results show that the highest conducting sample is the most amorphous.

Effect of Plasticizers on Methyl Cellulose-Based Alkaline Solid Polymer Electrolytes

2010 ◽  
Author(s):  
N. H. A. Rosli ◽  
N. I. Harun ◽  
M. F. M. Taib ◽  
S. I. Y. Saaid ◽  
T. I. T. Kudin ◽  
...  
Keyword(s):  
Polymer Electrolytes ◽  
Methyl Cellulose ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer
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