Preparation Of Polymer Electrolytes Research Articles

Blends of hexanoyl chitosan/epoxidized natural rubber doped with EMImTFSI

Hexanoyl chitosan soluble in THF is prepared by acyl modification of chitosan. Epoxidation natural rubber (ENR25) (25 mol%) is chosen to blend with hexanoyl chitosan. Films of hexanoyl chitosan/ENR25 blends containing lithium bis(trifluoromethanesulfonyl)imide (LiN(CF3SO2)2) and 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (EMImTFSI) are prepared by solution casting technique. FTIR results suggested that LiN(CF3SO2)2 salt interacted with hexanoyl chitosan, ENR25, and EMImTFSI. EMImTFSI interacted with hexanoyl chitosan and ENR25 to form EMIm+-hexanoyl chitosan and EMIm+-ENR25 complexes, respectively. The effect of EMImTFSI on the morphology and thermal properties of the blends is investigated by polarized optical microscopy (POM) and differential scanning calorimetry (DSC), respectively. The ionic conductivity of the electrolytes is measured by electrochemical impedance spectroscopy (EIS). Upon addition of 12 wt% EMImTFSI, a maximum conductivity of 1.3 × 10−6 S cm−1 is achieved. Methods based on impedance spectroscopy and FTIR are employed to study the transport properties of the prepared polymer electrolytes. The ac conductivity was found to obey universal law, σ(ω) = σ dc + Aω S . The temperature dependence of exponent s is interpreted by the small polaron hopping (SPH) model.

Development and characterization of proton conducting polymer electrolyte based on PVA, amino acid glycine and NH4SCN

Proton conducting polymer electrolytes is based on poly vinyl alcohol doped with glycine and different molar ratios of ammonium thiocyanate that have been prepared by solution casting technique using distilled water as solvent. Increase of amorphous nature of electrolyte system has been confirmed by XRD analysis while increasing the salt concentration. The FTIR analysis confirms the complex formation between the polymer, glycine and ammonium thiocyanate. From the ac impedance studies, it has been found that PVA — 1g and glycine — 0.1 and NH4SCN — 0.7molar mass percentage (g/mol (m.m.%)) has maximum conductivity of the order of 10−3S/cm at room temperature (303K). The temperature dependent conductivity of the prepared polymer electrolyte obey the Arrhenius relation and the activation energy of the polymer electrolyte lie within 0.62–0.09eV for all the prepared electrolyte system. Using DC Wagner's polarization method the ionic transference number has been measured for highest conductivity polymer film and the result indicates that the conductivity of the electrolyte is predominantly due to ions. The highest ionic conductivity sample has been used to construct the primary proton battery and the cell parameters have been calculated.

Development of proton conducting biopolymer membrane based on agar–agar for fuel cell

A proton-conducting polymer electrolyte based on agar and ammonium nitrate (NH4NO3) has been prepared through solution casting technique. The prepared polymer electrolytes were characterized by impedance spectroscopy, X-ray diffraction, and Fourier transform infra-red spectroscopy. Impedance analysis shows that sample with 60 wt.% NH4NO3 has the highest ionic conductivity of 6.57 × 10−4 S cm−1 at room temperature. As a function of temperature, the ionic conductivity exhibits an Arrhenius behaviour increasing from 6.57 × 10−4 S cm−1 at room temperature to 1.09 × 10−3 S cm−1 at 70 °C. Transport parameters of the samples were calculated using Wagner’s polarization method and thus shows that the increase in conductivity is due to the increase in the number of mobile ions. Fuel cell has been constructed with the highest proton conductivity polymer 40agar/60NH4NO3 and the open circuit voltage is found to be 558 mV.

Composite Polymer Electrolytes for Lithium Ion Batteries

Polymer electrolytes are expected to be the alternative electrolytes to satisfy the needs for power storage device because of several important factors, such as high ionic conductivities, reliable safety, easy fabrication, appropriate mechanical properties along with important technological issues related to electrochemical stability. Solid polymer electrolytes prepared by dissolving the salt into the polymer framework are still found to present low ionic conductivities at ambient temperature and dependence of temperature. The ionic conductivities can be enhanced by dissolving polymer matrices and lithium salts in organic solvents. However, liquid electrolytes will deteriorate mechanical properties. Here we have prepared a series of polymer electrolytes with excellent thermostability,well mechanical property, wide electrochemical window and high ionic conductivity, including trimethylolpropane trimethylacrylate (TMPTMA) based, triethylene glycol diacetate-2-propenoic acid butyl ester (TEGDA-BA) based, polyimide (PI) based and polyacrylonitrile (PAN) based polymer electrolytes using in situ thermal polymerization or polymer casting method [1-8]. The as prepared polymer electrolytes exhibit high ionic conductivities, electrochemical stability and excellent charge/discharge cycling performance. The excellent properties of polymer electrolytes make them significant potential materials for next generation lithium ion batteries.

Study on the Electrochemical Performance of Poly(ethylene ether carbonate) (PEEC)-Based Polymer Electrolyte for All Solid-State Lithium Batteries

Lithium-ion batteries have rapidly become the dominant power sources for portable electronic devices and electric vehicles, due to their high energy density and long cycle life.[1,2] However, safety issues have become a significant concern owing to the use of flammable liquid electrolytes. In this respect, the development of non-flammable solid electrolytes may provide a fundamental solution to the safety issue of lithium batteries. Solid polymer electrolytes based on poly(ethylene oxide) (PEO) present advantageous features such as flexibility in the shape of battery design, absence of leakage of organic solvents and better safety than liquid electrolytes.[3] However, they show poor ionic conductivity at ambient temperatures due to their tendency to crystallize. Moreover, their poor mechanical properties at high temperature due to the melting transition may cause short circuits between two electrodes in cases where unusually high heat is generated. In order to overcome these problems, we prepared polymer electrolytes based on alternating copolymer composed of ethylene oxide and ethylene carbonate (poly(ethylene ether carbonate), PEEC) in the form of flexible thin film, and their electrochemical properties were investigated. The polymer electrolytes showed higher ionic conductivity and superior electrochemical stability compared to those of PEO-based polymer electrolyte. The polymer electrolytes were applied to the all solid-state lithium batteries, and their electrochemical performance was evaluated.

Optimization of hybrid polymer electrolytes with the effect of lithium salt concentration in PEO/PVdF-HFP blends

Abstract Poly(ethylene oxide) (PEO) 6.25 wt%/poly(vinylidene fluoride-co-hexafluoropropylene) [P(VdF-HFP)] 18.75 wt% blend based electrolyte films containing different concentrations (2–10) wt% of lithium salt were prepared. The miscibility studies have been performed by using X-ray diffraction and Fourier transform infrared spectroscopy. The role of interaction between polymer hosts on conductivity is discussed using the results of a.c. impedance studies. A room temperature conductivity of 2.3912 × 10−4 S cm−1 has been obtained for PEO (6.25)–PVdF-HFP (18.75)–LiClO4 (8)–PC (67) polymer complex. The temperature dependence of the conductivity of polymer electrolyte seems to obey VTF relation. Electrochemical stability (3.3 V) was observed in the prepared polymer electrolyte. Reduction process and oxidation process of the prepared electrolyte system have also been evaluated by means of cyclic voltammetry. Thermogravimetric analysis results indicate thermal stability of PEO/PVdF-HFP lithium salt complexes. Roughness parameter of the sample having maximum ionic conductivity was studied by AFM. The morphology of the polymer complex is investigated by using SEM.

Organic dopant added polyvinylidene fluoride based solid polymer electrolytes for dye-sensitized solar cells

The effect of phenothiazine (PTZ) as dopant on PVDF/KI/I2 electrolyte was studied for the fabrication of efficient dye-sensitized solar cell (DSSC). The different weight percentage (wt%) ratios (0, 20, 30, 40 and 50%) of PTZ doped PVDF/KI/I2 electrolyte films were prepared by solution casting method using DMF as a solvent. The following techniques such as Fourier transform infrared (FT-IR), differential scanning calorimetry (DSC), X-ray diffractometer (XRD) and AC-impedance analysis have been employed to characterize the prepared polymer electrolyte films. The FT-IR studies revealed the complex formation between PVDF/KI/I2 and PTZ. The crystalline and amorphous nature of polymer electrolytes were confirmed by DSC and XRD analysis respectively. The ionic conductivities of polymer electrolyte films were calculated from the AC-impedance analysis. The undoped PVDF/KI/I2 electrolyte exhibited the ionic conductivity of 4.68×10−6Scm−1 and this value was increased to 7.43×10−5Scm−1 when PTZ was added to PVDF/KI/I2 electrolyte. On comparison with different wt% ratios, the maximum ionic conductivity was observed for 20% PTZ-PVDF/KI/I2 electrolyte. A DSSC assembled with the optimized wt % of PTZ doped PVDF/KI/I2 electrolyte exhibited a power conversion efficiency of 2.92%, than the undoped PVDF/KI/I2 electrolyte (1.41%) at similar conditions. Hence, the 20% PTZ-PVDF/KI/I2 electrolyte was found to be optimal for DSSC applications.

Hematite Fe<sub>2</sub>O<sub>3</sub> Nanoparticles Incorporated Polyvinyl Alcohol Based Polymer Electrolytes for Dye-Sensitized Solar Cells

Influence of hematite iron oxide nanoparticles (α-Fe2O3 NPs) on ionic conductivity of polyvinyl alcohol/KI/I2 (PVA/KI/I2) polymer electrolytes was investigated in this work. The pure and different weight percentage (wt %) ratios (2, 3, 4 and 5 % with respect to PVA) of α-Fe2O3 NPs incorporated PVA/KI/I2 polymer electrolyte films were prepared by solution casting method using DMSO as solvent. The prepared polymer electrolyte films were characterized by Fourier transform infrared (FT-IR) spectroscopy, X-ray diffractometer (XRD) and alternating current (AC)-impedance analysis. The AC-impedance studies revealed a significant increase in the ionic conductivity of α-Fe2O3 NPs incorporated PVA/KI/I2 polymer electrolytes than compared to pure PVA/KI/I2. This incorporated polymer electrolytes reduces the crystallinity of the polymer and enhance the mobility of I-/I3- redox couple, thereby increasing the ionic conductivity of polymer electrolytes. The highest ionic conductivity of 1.167 × 10-4 Scm-1 was observed for 4 wt % of α-Fe2O3 NPs incorporated PVA/KI/I2 polymer electrolyte. Also, the dye sensitized solar cell (DSSC) fabricated with this electrolyte showed an enhanced power conversion efficiency of 3.62 % than that of pure PVA/KI/I2 electrolyte (1.51 %). Thus, the synthesized α-Fe2O3 NPs added polymer electrolyte can be serve as a suitable material for dye sensitized solar cell application studies.

Lithium Ion Conduction in PVdC-co-AN Based Polymer Blend Electrolytes Doped with Different Lithium Salts

AbstractPolymer electrolytes prepared by the complexation of lithium salts with poly(ethylene oxide) (PEO) and poly(vinylidene chloride-co-acrylonitrile) (PVdC-co-AN) will be of great use as separators in lithium polymer batteries. The amorphous nature of the blend electrolyte shows that the conductivity increases by the addition of lithium salts. The presence of C≡N and C=N in PVdC-co-AN are confirmed from the Fourier transform infrared studies. Among the various lithium salts studied, lithium trifluoro methane sulfonoimide [LiN(CF3SO2)2] based electrolyte exhibits the highest ionic conductivity of the order of 0.265 × 10−5Scm−1at room temperature. The sample having a maximum ionic conductivity PEO(80 wt%)/PVdC-co-AN(20 wt%)/LiN(CF3SO2)2(8 wt%) is supported by the lower optical band gap in UV-Visible analysis and low intensity in luminescence studies. Two and three dimensional topographic images of the above sample reveal the presence of micropores. Thermal stability of the prepared electrolytes is studied by thermo gravimetric/differential thermal analysis. Using differential scanning calorimetric analysis, the minimum glass transition temperature (30°C) is observed for the sample doped with LiN(CF3SO2)2. The cyclic voltammetric studies reveal the strong capacitive behavior of the prepared polymer electrolytes. The electrochemical stability windows for the prepared samples are observed using linear sweep voltammetry.

Evolution of Morphology, Modulus, and Conductivity in Polymer Electrolytes Prepared via Polymerization-Induced Phase Separation

Polymer electrolytes are alternatives to liquid electrolytes traditionally used in electrochemical devices such as lithium-ion batteries and fuel cells. In particular, block polymer electrolytes are promising candidates because they self-assemble into well-defined microstructures, in which orthogonal properties can be integrated into a single material (e.g., high modulus in domain A, fast ion transport in domain B). However, the performance of block polymer electrolytes often falls short, due to the lack of long-range continuity of both domains and relatively low strength. We recently reported a simple, one-pot synthetic strategy to prepare polymer electrolytes with the highest reported combination of modulus and ionic conductivity, attributes enabled by a co-continuous, cross-linked network morphology. In this work we aim to understand the mechanism by which this nanoscale morphology is formed by performing a series of in situ, time-resolved experiments—small-angle X-ray scattering, conductivity, rheolog...

Effect of different iodide salts on ionic conductivity and structural and thermal behavior of rice-starch-based polymer electrolytes for dye-sensitized solar cell application

Biodegradable-based rice starch is used to prepare polymer electrolytes (PEs) using different iodide salts. Lithium iodide (LiI), ammonium iodide (NH4I), and sodium iodide (NaI) are used in this work. Polymer electrolytes are prepared using solution cast technique. The ionic conductivity of PEs is measured and temperature-dependent behavior of PEs studied. The polymer electrolyte system containing sodium iodide shows the highest ionic conductivity upon addition of 45 wt% sodium iodide. Fourier transform infrared (FTIR) results confirm complexation between polymer and salt. Thermal behavior of PEs is studied under thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The polymer electrolyte with 45 wt% of NaI is used to fabricate dye-sensitized solar cell (DSSC) and analyzed under Sun simulator. It shows short-circuit current density (mA cm−2), open circuit voltage (mV), and fill factor (%) of 2.40, 0.485, and 67.0, respectively.

The Influence of Crystallization on the Ionic Conductivity of PEO/LiClO<sub>4</sub> Polymer Electrolytes

It’s generally accepted that the transport of lithium ions in solid polymer electrolytes exists mainly in the amorphous regions, thus the research has focused on reducing the crystallinity to obtain high conductivity at room temperature. However, the point has been challenged: crystalline systems can provide a better ionic conductivity. In this paper, PEO/LiClO4polymer electrolytes with different lithium-oxygen ratios were prepared by melt-blending. The results show that [EO]/ [Li+] = 3 system has higher ionic conductivity, 4.26×10-6S/cm, more than twice as that of [EO]/ [Li+] = 4 system. DSC and XRD results show PEO3:LiClO4crystalline phase present in both systems, the crystallinity of [EO]/ [Li+] = 3 system is higher. It illustrates the generally accepted mechanism is not suitable for these systems, suggesting the high conductivity of [EO]/ [Li+] = 3 system is due to the unique crystal structure of PEO3:LiClO4. Besides, as the crystallinity increases, the tensile strength of [EO]/ [Li+] = 3 system increases greatly, to 1.43 MPa. In addition, because of the high melt temperature of PEO3:LiClO4, the electrolytes will gain excellent heat resistance. In summary, this paper provides a new idea to prepare polymer electrolytes with high ionic conductivity, improved strength and excellent heat resistance in large scale.

Optimization of ionic conductivity of electrospun polyacrylonitrile/poly (vinylidene fluoride) (PAN/PVdF) electrolyte using the response surface method (RSM)

Polyacrylonitrile/poly (vinylidene fluoride) fibrous membranes were prepared by electrospinning of PAN and PVdF solution and were soaked in 1 M lithium perchlorate (LiClO4) in ethylene carbonate (EC)/diethyle carbonate (DEC) (1:1 wt.%) solution in order to prepare polymer electrolyte membranes. Response surface method (RSM) was used to obtain a quantitative relationship between selected electrospinning parameters, i.e., applied voltage, solution concentration, and PVdF content. The measured response is ionic conductivity of electrolyte membranes. The Box–Behnken method was applied to design of experiments. Importance of parameters in the model was determined by analysis of variance (ANOVA). The model was used to find the maximum ionic conductivity of electrolyte membranes as optimum result. The morphology of fibers was investigated by field emission scanning electron microscopy (FESEM). FESEM results show that the PAN/PVdF membrane has interconnected multifibrous layers with ultrafine porous structure that leads to a high ionic conductivity and efficient lithium ion transport. Produced fibrious membranes show uniform morphology. Average fiber diameter lies between 116 and 379 nm, and membranes have high porosity of 48–90 % and electrolyte uptake of 303–493 %. The polymer electrolyte membranes show good ionic conductivity in the order of 10−3 S cm−1 at ambient temperature. Ionic conductivity decreases with increase of solution concentration and increases with increase of PVdF composition. Voltage has no significant effect on ionic conductivity of the membranes. The model predicted the maximum ionic conductivity of 7.98 mS cm−1 when the voltage was set at 21.57 kV, the solution concentration set at 14.02 wt.%, and the PVdF composition set at 69.48 wt.%.

Electrical conductivity characterization of polyacrylonitrile-ammonium bromide polymer electrolyte system

A new proton-conducting polymer electrolyte based on polyacrylonitrile (PAN) doped with ammonium bromide (NH4Br) has been prepared using solution casting technique. The complexation of NH4Br with PAN polymer has been studied using X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). The differential scanning calorimetry (DSC) thermograms of PAN with NH4Br electrolyte membrane show the decrease in glass transition temperature (T g). This reduction of T g of membrane reveals the increase of segmental motion of polymer electrolyte. The ionic conductivity of the prepared polymer electrolyte has been found by ac impedance spectroscopic analysis. The maximum ionic conductivity (2.5 × 10−3 S cm−1) has been obtained for 30 mol% NH4Br-doped PAN polymer electrolyte. The temperature-dependent conductivity of the polymer electrolyte follows an Arrhenius relationship. The dielectric spectra show low frequency dispersion. The relaxation time (τ) has been calculated from loss tangent spectra (tan δ). Ionic transference number measured has been found to be in the range of 0.92–0.99 for all the polymer electrolyte system. The result reveals that the conducting species are predominantly ions. Using the maximum ionic conducting polymer electrolyte, the primary proton-conducting battery with configuration Zn+ZnSo4·7H2O/70 PAN:30 NH4Br/PbO2 + V2O5 has been fabricated, and its discharge characteristics have been studied.

Effects of CdCl2 concentration on the structural, thermal and ionic conductivity properties of HPMC polymer electrolyte films

The present study illustrates cadmium chloride (CdCl2)-doped hydroxypropyl methylcellulose (HPMC) polymer electrolyte films. Solution cast method is employed to prepare polymer electrolyte samples of HPMC complexed with various concentrations of CdCl2 (1–4 %, wt.%). Structural and thermal studies of these polymer samples were investigated using X-ray diffraction (XRD) and differential scanning calorimetry (DSC). XRD results showed that the amorphous domains of HPMC polymer matrix were increased with increase in CdCl2 salt concentration. DSC results revealed that the presence of CdCl2 in the polymer matrix increases the melting temperature; however, it is observed that the heat of fusion (ΔH f ) is high for pure HPMC films. The variation in the film morphology was examined by scanning electron microscopy (SEM). Direct current (dc) conductivity was measured in the temperature range 313–383 K. The magnitude of electrical conductivity was found to be increased with increasing salt concentration and temperature. The activation energy region data (region I and region II) indicated the dominance of ion-type charge transport in these polymer electrolyte films. HPMC polymer electrolytes with 4 % CdCl2 salt concentration exhibit the least crystallinity and the highest conductivity 1.01 × 10−6 Scm−1 at 313 K.

Surface modification of sepiolite nanofibers with PEG based compounds to prepare polymer electrolytes

The controlled surface modification of the fibrous clay mineral, sepiolite (Sep), with poly(ethylene glycol) (PEG) and Vitamin E tocopherol polyethylene glycol succinate (TPGS) is presented in this work. Sep, which has a rich surface reactivity because of the presence of silanol groups on its surface, is employed as nanofiller in clay polymer nanocomposites (CPN). It organizes itself into bundles of nanofibers which are difficult to separate from one another unless aqueous gels are prepared under very specific conditions. In the form of an aqueous gel, however, separation of the nanofibers and chemical modification of their surface can be easily done. Sets of very different organosepiolites (OSep) can be obtained in this way. In this work the resulting OSep are characterized in terms of mass incorporation and yields of reaction, specific surface, surface texture, surface water content and thermal stability. As the final purpose of these OSep is the mechanical reinforcement of poly(ethylene oxide) (PEO) based electrolytes highly loaded with ethylene carbonate (EC), blends with PEG or PEO and lithium triflate, with or without EC are prepared and the properties of the final materials are found to be strongly dependent on the type of OSep employed. In particular, examples on the fillers dispersion in the PEO nanocomposites and on their stability in dispersion of PEG/EC blends are described.

Preparation of polymer electrolytes based on the polymerized imidazolium ionic liquid and their applications in lithium batteries

ABSTRACTThe polymer electrolytes based on a polymerized ionic liquid (PIL) as polymer host and containing 1,2‐dimethyl‐3‐butylimidazolium bis(trifluoromethanesulfonyl)imide (BMMIM‐TFSI) ionic liquid, lithium TFSI salt, and nanosilica are prepared. The PIL electrolyte presents a high ionic conductivity, and it is 1.07 × 10−3 S cm−1 at 60°C, when the BMMIM‐TFSI content reaches 60% (the weight ratio of BMMIM‐TFSI/PIL). Furthermore, the electrolyte exhibits wide electrochemical stability window and good lithium stripping/plating performance. Preliminary battery tests show that Li/LiFePO4 cells with the PIL electrolytes are capable to deliver above 146 mAh g−1 at 60°C with very good capacity retention. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40928.

Preparation of Polymers Electrolyte Membranes for Lithium Battery from Styrofoam Waste

Recently, the battery industry has represented one important and growing sector where the use of non-toxic and non-hazardous substitute materials has not rapidly developed. The environmentally friendly polymer electrolyte is required to decrease the risk of environmental pollution caused by toxic materials of battery components. Therefore, in this study was focused on the preparation of the environmentally friendly polymer electrolyte membrane with low cost for lithium-ion battery applications. The preparation of polymer electrolyte membrane was done by casting of polymer solution. The main materials used to prepare polymer electrolyte membranes are sulfonated polystyrene (SPS) obtained from isolation of Styrofoam, hydrolyzed bacterial poly(R-hydroxybutyrate) (PHB), and lithium perchlorate (LiClO4) as an ionic salt. The isolated polystyrene was reacted with acetyl sulfate to form sulfonated polystyrene (SPS). These three main materials were dissolved in an appropriate solvent and mixture until homogenous. The polymer solution was poured into a petri dish, and then their solvent was evaporated. The results showed that the increase LiClO4 content in the membranes, the conductivity of membrane increases, but their mechanical strength decreases and the surface morphology of membranes becomes less uniform and homogenous.

Preparation and ionic conductivity of composite polymer electrolytes based on hyperbranched star polymer

Hyperbranched star polymer HBPS-(PPEGMA) x was synthesized by atom transfer radical polymerization (ATRP) using hyperbranched polystyrene (HBPS) as macroinitiator and poly(ethylene glycol) methyl ether methacrylate (PEGMA) as monomer. The structure of the prepared hyperbranched star polymer was characterized by 1H NMR, ATR-FTIR, and GPC. Polymer electrolytes based on HBPS-(PPEGMA) x , lithium salt, and/or nano-TiO2 were prepared. The influences of lithium salt concentration and type, nano-TiO2 content, and size on ionic conductivity of the obtained polymer electrolytes were investigated. The results showed that the low crystallinity of the prepared polymer electrolyte was caused by the interaction between lithium salt and polymer. The addition of TiO2 into HBPS-(PPEGMA) x /LiTFSI improved the ionic conductivity at low temperature. The prepared composite polymer electrolyte showed the highest ionic conductivity of 9 × 10−5 S cm−1 at 30 °C when the content of TiO2 was 15 wt% and the size of TiO2 was 20 nm.

A study on polymer blend electrolyte based on PVA/PVP with proton salt

Proton-conducting polymer blend electrolytes based on PVA–PVP–NH4NO3 were prepared for different compositions by solution cast technique. The prepared films are investigated by different techniques. The XRD study reveals the amorphous nature of the polymer electrolyte. The FTIR and laser Raman studies confirm the complex formation between the polymer and salt. DSC measurements show decrease in T g with increasing salt concentration. The ionic conductivity of the prepared polymer electrolyte was found by ac impedance spectroscopy analysis. The maximum ionic conductivity was found to be 1.41 × 10−3 S cm−1 at ambient temperature for the composition of 50PVA:50PVP:30 wt% NH4NO3 with low-activation energy 0.29 eV. The conductivity temperature plots are found to follow an Arrhenius nature. The dielectric behavior was analyzed using dielectric permittivity (e*) and the relaxation frequency (τ) was calculated from the loss tangent spectra (tan δ). Using this maximum ionic conducting polymer blend electrolyte, the primary proton battery with configuration Zn + ZnSO4·7H2O/50PVA:50PVP:30 wt% NH4NO3/PbO2 + V2O5 was fabricated and their discharge characteristics studied.