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首页> 美国卫生研究院文献>Polymers >From Cellulose Shrimp and Crab Shells to Energy Storage EDLC Cells: The Study of Structural and Electrochemical Properties of Proton Conducting Chitosan-Based Biopolymer Blend Electrolytes
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From Cellulose Shrimp and Crab Shells to Energy Storage EDLC Cells: The Study of Structural and Electrochemical Properties of Proton Conducting Chitosan-Based Biopolymer Blend Electrolytes

机译：从纤维素虾和蟹壳到能量储存EDLC细胞：壳聚糖基生物聚合物混合电解质的质子结构和电化学性能研究

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In this study, solid polymer blend electrolytes (SPBEs) based on chitosan (CS) and methylcellulose (MC) incorporated with different concentrations of ammonium fluoride (NH F) salt were synthesized using a solution cast technique. Both Fourier transformation infrared spectroscopy (FTIR) and X-ray diffraction (XRD) results confirmed a strong interaction and dispersion of the amorphous region within the CS:MC system in the presence of NH F. To gain better insights into the electrical properties of the samples, the results of electrochemical impedance spectroscopy (EIS) were analyzed by electrical equivalent circuit (EEC) modeling. The highest conductivity of 2.96 × 10 S cm was recorded for the sample incorporated with 40 wt.% of NH F. Through transference number measurement (TNM) analysis, the fraction of ions was specified. The electrochemical stability of the electrolyte sample was found to be up to 2.3 V via the linear sweep voltammetry (LSV) study. The value of specific capacitance was determined to be around 58.3 F/g. The stability test showed that the electrical double layer capacitor (EDLC) system can be recharged and discharged for up to 100 cycles with an average specific capacitance of 64.1 F/g. The synthesized EDLC cell was found to exhibit high efficiency (90%). In the 1st cycle, the values of internal resistance, energy density and power density of the EDLC cell were determined to be 65 Ω, 9.3 Wh/kg and 1282 W/kg, respectively.
机译：在该研究中，使用溶液浇铸技术合成基于壳聚糖（Cs）和含有不同浓度的氟化铵（NH F）盐的壳聚糖（Cs）和甲基纤维素（MC）的固体聚合物共混物电解质（SPBE）。傅里叶变换红外光谱（FTIR）和X射线衍射（XRD）结果证实了CS：MC系统内的非晶区域的强相互作用和分散在NH F存在下，以获得更好的洞察电气性质样品，通过电力等效电路（EEC）建模分析了电化学阻抗光谱（EIS）的结果。记录最高导电率为2.96×10scm的样品，其包含40重量％的样品。通过转移数测量（TNM）分析，指定离子的一部分。通过线性扫描伏安法（LSV）研究，发现电解质样品的电化学稳定性最高可达2.3V。测定特定电容的值约为58.3 f / g。稳定性测试表明，电双层电容器（EDLC）系统可以再充电和放电，最多100个循环，其平均特定电容为64.1f / g。发现合成的EDLC细胞表现出高效率（90％）。在第一周期中，EDLC电池的内阻，能量密度和功率密度的值分别测定为65Ω，9.3WH / kg和1282W / kg。

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