Preparation and characterization of PAN�?�KI complexed gel polymer electrolytes for solid-state battery applications

Bulletin of materials science

K VIJAYA KUMAR¹  P NARAYANA MURTY³  K K VENKATARATNAM²  N KRISHNA JYOTHI⁴ 

[1] Solid State Ionics Research Laboratory, Department of Physics, K L University, Vaddeswaram 522502, India$$Solid State Ionics Research Laboratory, Department of Physics, K L University, Vaddeswaram 522502, IndiaSolid State Ionics Research Laboratory, Department of Physics, K L University, Vaddeswaram 522502, India$$;Department of Physics, Malaviya National Institute of Technology Jaipur, Jaipur 302017, India$$Department of Physics, Malaviya National Institute of Technology Jaipur, Jaipur 302017, IndiaDepartment of Physics, Malaviya National Institute of Technology Jaipur, Jaipur 302017, India$$;Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar 522510, India$$Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar 522510, IndiaDepartment of Physics, Acharya Nagarjuna University, Nagarjuna Nagar 522510, India$$;Solid State Ionics Research Laboratory, Department of Physics, K L University, Vaddeswaram 522502, India$$Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar 522510, India$$Solid State Ionics Research Laboratory, Department of Physics, K L University, Vaddeswaram 522502, IndiaSolid State Ionics Research Laboratory, Department of Physics, K L University, Vaddeswaram 522502, India$$Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar 522510, India$$Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar 522510, IndiaSolid State Ionics Research Laboratory, Department of Physics, K L University, Vaddeswaram 522502, India$$Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar 522510, India$$

关键词: Polyacrylonitrile;    solution casting technique;    differential scanning calorimetry;    X-ray diffraction;    electrical properties.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

The free standing and dimensionally stable gel polymer electrolyte films of polyacrylonitrile (PAN): potassium iodide (KI) of different compositions, using ethylene carbonate as a plasticizer and dimethyl formamide as solvent, are prepared by adopting ‘solution casting technique’ and these films are examined for their conductivities. The structural, miscibility and the chemical rapport between PAN and KI are investigated using X-ray diffraction, Fourier transform infrared spectroscopy and differential scanning calorimetry methods. The conductivity is enhanced with the increase in KI concentration and temperature. The maximum conductivity at 30$^{circ}$C is found to be $2.089 imes 10^{�?5}$ S cm$^{�?1}$ for PAN:KI (70:30) wt%, which is nine orders greater than that of pure PAN (${lt}10^{�?14}$ S cm$^{�?1}$). The conductivity-temperature dependence of these polymer electrolyte films obeys Arrhenius behaviour with activation energy ranging from 0.358 to 0.478 eV. The conducting carriers of charge transport in these polymer electrolyte films are identified by Wagner’s polarization technique and it is found that the charge transport is predominantlydue to ions. The better conducting sample is used to fabricate the battery with configuration K/PAN $+$ KI/I$_2$ $+$ C $+$ electrolyte and good discharge characteristics of battery are observed.

【 授权许可】

Unknown