Impedance, circuit simulation, transport properties and energy storage behavior of plasticized lithium ion conducting chitosan based polymer electrolytes

Polymer Testing

Yuhanees M. Yusof¹  Pshko A. Mohammed²  Ahmad S.F.M. Asnawi³  Ranjdar M. Abdullah⁴  Rebar T. Abdulwahid⁵  Shujahadeen B. Aziz⁶  M.F.Z. Kadir⁶ 

[1] Bioengineering Technology (UniKL MICET), 78000 Alor Gajah, Malacca, Malaysia;Corresponding author. Hameed Majid Advanced Polymeric Materials Research Lab., Department of Physics, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani, Kurdistan Regional Government, Iraq.;Department of Civil Engineering, College of Engineering, Komar University of Science and Technology, Sulaimani, 46001, Kurdistan Regional Government, Iraq;Charmo Research Center, Charmo University, Peshawa Street, Chamchamal, Sulaimani, Kurdistan Region, Iraq;;Chemical Engineering Section, Universiti Kuala Lumpur Malaysian Institute of Chemical &Hameed Majid Advanced Polymeric Materials Research Lab., Department of Physics, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani, Kurdistan Regional Government, Iraq;

关键词: Chitosan;    Glycerol;    FTIR study;    Dielectric and electric modulus analysis;    TNM and LSV analysis;    EDLC and CV studies;   

DOI  :  

来源: DOAJ

【 摘 要 】

In this work, energy storage devices based on plasticized chitosan biopolymer electrolytes were studied. The polymer electrolyte system of CS-LiClO4 with three different glycerol concentrations has been well prepared. The FTIR analysis revealed that the glycerol has interacted with the CS-LiClO4complex, which is confirmed bythe existence of several functional groups. The results of impedance spectroscopy were fitted with electrical equivalent circuits. The ion transport parameters were analyzed from the deconvoluted FTIR spectra. The highest ionic conductivity is obtained at 1.20 × 10−3 S cm−1 for CS-LiClO4 doped with 30 wt% glycerol (C3) with the breakdown voltage of 2.13 V. The transport parameters are observed to be influenced by the ionic conductivity, which verified from the deconvolution of v(ClO4−) band. The dielectric and electric modulus studies revealed the non-Debye behavior of the electrolytes.The tionvalue for C3 was 0.955 while telec was 0.045, and these values were used to further evaluate the contribution of ionsin ionic mobility and diffusion coefficient. At the scanned rate of 10 mV s−1, the maximum Cs value was obtained to be 98.99 F/g by the EDLC, very similar to the Cs (97.98 F/g) extracted from the 1st cycle GCD curve. Other parameters such as energy density and power density are specified for the fabricated EDLC device.

【 授权许可】

Unknown