Abstract Pliable supercapacitor, yielding specific capacitance (Cs) and energy density as high as 348 F g-1 and 48.3 Wh Kg-1 respectively was fabricated using modified activated carbon electrodes. The nanospheres of activated carbon (AC) were anchored on the nanoplates of boron nitride (BN) by employing the facile technique of pulsed laser ablation in liquid (PLAL) using 532 nm focused laser beam. Four different variants of electrode materials were synthesized by varying the weight percentage (1%, 3%, 5% and 10%) of BN in AC in the PLAL precursor solution. The morphological characteristics, the elemental composition and the structural analysis of the synthesized electrode materials were studied respectively by FESEM, XPS and XRD. The morphological studies indicated that the PLAL synthesis of the electrode materials resulted in proper intercalation of carbon nanospheres into BN nanoplates, which resulted in the observed enhanced performance of the fabricated supercapacitor. Four supercapacitors in this work were fabricated using the four variants of synthesized electrode materials in conjunction with gel polymer electrolyte (GPE). GPE are well known for their non-corrosive nature and best sealing ability to avoid any leakage that results in increasing the cycle life of the device. The performance of the fabricated supercapacitors was evaluated using cyclic voltammetry (CV), galvanostatic charge discharge (GCD) measurement and electrochemical impedance spectroscopy (EIS). The results indicate that the supercapacitor fabricated using 3% BN in AC as electrode material manifested the best specific capacitance and energy density. Also it was found that the supercapacitor maintained 85% of its initial capacitance even after 5000 charge/discharge cycles.

中文翻译：

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使用脉冲激光烧蚀技术插入氮化硼纳米板的活性炭纳米球制造的高性能柔韧超级电容器

摘要 使用改性活性炭电极制备了柔性超级电容器，其比电容 (Cs) 和能量密度分别高达 348 F g-1 和 48.3 Wh Kg-1。通过使用 532 nm 聚焦激光束的液体脉冲激光烧蚀 (PLAL) 的简便技术，将活性炭 (AC) 纳米球固定在氮化硼 (BN) 纳米板上。通过改变 PLAL 前体溶液中 AC 中 BN 的重量百分比（1%、3%、5% 和 10%），合成了四种不同的电极材料变体。通过FESEM、XPS和XRD分别研究了合成电极材料的形貌特征、元素组成和结构分析。形态学研究表明，电极材料的 PLAL 合成导致碳纳米球适当嵌入 BN 纳米片，从而导致观察到的制造超级电容器的性能增强。这项工作中的四个超级电容器是使用合成电极材料的四种变体与凝胶聚合物电解质 (GPE) 一起制造的。GPE 以其无腐蚀性和最佳密封能力而闻名，可避免任何泄漏，从而延长设备的循环寿命。使用循环伏安法 (CV)、恒电流充电放电 (GCD) 测量和电化学阻抗谱 (EIS) 评估制造的超级电容器的性能。结果表明，在AC中使用3%BN作为电极材料制备的超级电容器表现出最佳的比电容和能量密度。还发现即使在 5000 次充电/放电循环后，超级电容器仍保持其初始电容的 85%。