Investigating electrical and dielectric characteristics of sodium chloride-based biodegradable polymer blend electrolytes for sustainable energy storage technology

IF 3 4区材料科学 Q3 CHEMISTRY, PHYSICAL

Solid State Ionics Pub Date : 2024-06-07 DOI:10.1016/j.ssi.2024.116606

Shujahadeen B. Aziz , Rebar T. Abdulwahid , Hawzhin B. Tahir , Ahmed F. Abdulrahman , Ary R. Murad , Niyaz M. Sadiq , Muhamad H. Hamsan , Sameerah I. Al-Saeedi , Mohd F.Z. Kadir , Samir M. Hamad

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Abstract

This work explores green chemistry and the development of sustainable energy storage devices using non-toxic materials. In the fabrication process of electrodes activated carbon materials were used to create symmetrical electrodes. A solid polymer electrolyte (SPE) system is then formed through solution casting, utilizing chitosan (CHSN) and poly(2-ethyl-2-oxazoline) (POZ) as the polymer hosts to facilitate ionic transport with sodium chloride (NaCl) with the aid of plasticizer. Notably, the CSOZN5 system exhibits a relatively high conductivity of 3.59 × 10⁻⁴ S cm⁻¹. The non-Debye relaxation is indicated by the depressed semicircle, with a diameter below the real-axis and the asymmetry-broadness of tanδ. The electric and dielectric characteristics show similar trends with plasticizer concentration, with the highest dielectric constant recorded for the best ion-conducting sample. The electric modulus loss peak shift toward higher frequency indicated enhancement in the ionic movement for high plasticized systems. Through transference number measurement (TNM), the contribution of ions to the overall conductivity is identified, with the best ion-conducting plasticized CHSN:POZ:NaCl film demonstrating potential stability reaching 2.6 V. The capacitive behavior of the constructed electric double-layer capacitor (EDLC) is analyzed using the cyclic voltammetry (CV) test, revealing a specific capacitance (Cspe) of 9.11 F/g at 20 mV/s, signifying the possibility of green energy storage technologies with environmentally friendly materials.

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研究基于氯化钠的可生物降解聚合物混合电解质的电气和介电特性，用于可持续储能技术

这项研究探讨了绿色化学和使用无毒材料开发可持续储能设备的问题。在电极的制造过程中，使用了活性炭材料来制造对称电极。然后，利用壳聚糖（CHSN）和聚（2-乙基-2-噁唑啉）（POZ）作为聚合物宿主，在增塑剂的帮助下促进离子与氯化钠（NaCl）的传输，通过溶液浇铸形成固体聚合物电解质（SPE）系统。值得注意的是，CSOZN5 系统的电导率相对较高，达到 3.59 × 10-4 S cm-1。非德拜弛豫表现为凹陷的半圆，直径低于实轴，不对称宽度为 tanδ。电特性和介电特性随增塑剂浓度的变化趋势相似，最佳离子传导样品的介电常数最高。电模量损耗峰向更高频率移动，表明高塑化体系的离子运动增强。利用循环伏安法（CV）测试分析了所构建的双电层电容器（EDLC）的电容行为，结果表明在 20 mV/s 时的比电容（Cspe）为 9.11 F/g，这表明利用环保材料开发绿色储能技术是可行的。

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来源期刊

Solid State Ionics 物理-物理：凝聚态物理

CiteScore

6.10

自引率

3.10%

发文量

152

审稿时长

58 days

期刊介绍： This interdisciplinary journal is devoted to the physics, chemistry and materials science of diffusion, mass transport, and reactivity of solids. The major part of each issue is devoted to articles on: (i) physics and chemistry of defects in solids; (ii) reactions in and on solids, e.g. intercalation, corrosion, oxidation, sintering; (iii) ion transport measurements, mechanisms and theory; (iv) solid state electrochemistry; (v) ionically-electronically mixed conducting solids. Related technological applications are also included, provided their characteristics are interpreted in terms of the basic solid state properties. Review papers and relevant symposium proceedings are welcome.

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