Asnawi Ahmed S F M, B Aziz Shujahadeen, M Nofal Muaffaq, Hamsan Muhamad H, Brza Mohamad A, Yusof Yuhanees M, Abdilwahid Rebar T, Muzakir Saifful K, Kadir Mohd F Z
Chemical Engineering Section, Malaysian Institute of Chemical & Bioengineering Technology (UniKL MICET), Universiti Kuala Lumpur, Alor Gajah 78000, Malacca, Malaysia.
Hameed Majid Advanced Polymeric Materials Research Laboratory, Department of Physics, College of Science, University of Sulaimani, Qlyasan Street, Kurdistan Regional Government, Sulaimani 46001, Iraq.
Polymers (Basel). 2020 Jun 26;12(6):1433. doi: 10.3390/polym12061433.
In this study, the solution casting method was employed to prepare plasticized polymer electrolytes of chitosan (CS):LiCOCH:Glycerol with electrochemical stability (1.8 V). The electrolyte studied in this current work could be established as new materials in the fabrication of EDLC with high specific capacitance and energy density. The system with high dielectric constant was also associated with high DC conductivity (5.19 × 10 S/cm). The increase of the amorphous phase upon the addition of glycerol was observed from XRD results. The main charge carrier in the polymer electrolyte was ion as (0.044) < (0.956). Cyclic voltammetry presented an almost rectangular plot with the absence of a Faradaic peak. Specific capacitance was found to be dependent on the scan rate used. The efficiency of the EDLC was observed to remain constant at 98.8% to 99.5% up to 700 cycles, portraying an excellent cyclability. High values of specific capacitance, energy density, and power density were achieved, such as 132.8 F/g, 18.4 Wh/kg, and 2591 W/kg, respectively. The low equivalent series resistance () indicated that the EDLC possessed good electrolyte/electrode contact. It was discovered that the power density of the EDLC was affected by .
在本研究中，采用溶液浇铸法制备了具有电化学稳定性（1.8V）的壳聚糖（CS）：LiCOCH：甘油增塑聚合物电解质。本工作中研究的电解质可作为制备具有高比电容和能量密度的双电层电容器（EDLC）的新材料。具有高介电常数的体系也具有高直流电导率（5.19×10 S/cm）。从X射线衍射结果观察到添加甘油后非晶相增加。聚合物电解质中的主要载流子是离子，因为 （0.044） < （0.956）。循环伏安法呈现出几乎矩形的曲线，没有法拉第峰。发现比电容取决于所使用的扫描速率。观察到EDLC的效率在高达700次循环时保持在98.8%至99.5%之间恒定，表现出优异的循环稳定性。实现了高比电容、能量密度和功率密度值，分别为132.8 F/g、18.4 Wh/kg和2591 W/kg。低等效串联电阻（）表明EDLC具有良好的电解质/电极接触。发现EDLC的功率密度受 影响。
