Vaper Phase Polymerized PEDOT/Cellulose Paper Composite for Flexible Solid-State Supercapacitor
Vaper Phase Polymerized PEDOT/Cellulose Paper Composite for Flexible Solid-State Supercapacitor
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DOI：
10.1021/acsaem.9b02044
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发表时间：
2020-02-01
影响因子：
6.4
通讯作者：
Jones, Wayne E., Jr.
中科院分区：
文献类型：
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作者：
Li, Boxiao;Lopez-Beltran, Hendrick;Jones, Wayne E., Jr.
成功制造了基于气相聚合（VPP）PEDOT到纤维素纸基体（PEDOT/CP）的柔性固态超级电容器。 PEDOT/CP 复合材料在构建的测试电池中既充当集电器又充当电极。它具有 14 欧米茄/平方的低薄层电阻，并且通过了透明胶带的粘合测试。它还表现出优异的稳定性，在 1000 次弯曲循环后电导率没有明显下降。电极的 PEDOT 在 10 mV/s 的扫描速率下获得了 179 F/g 的质量比电容，这是迄今为止报道的最高比电容之一。这种高电容归因于 VPP 技术和纤维素基质的多孔纤维结构的结合。 EDOT蒸气渗透并聚合通过由纳米至微米级CP纤维制成的CP基体。达到的最高电极体积电容为13.7 F/cm(3)。整个装置实现了0.76 mWh/cm(3)的能量密度和0.01 W/cm(3)的功率密度。将超级电容器弯曲至 90 度或旋转至 45 度不会导致电容发生重大变化。由于超级电容器全部采用非金属材料，因此可以很容易地处理。超级电容器的焚烧不会释放大量有害废气。
A flexible solid-state supercapacitor based on vapor phase polymerized (VPP) PEDOT into cellulose paper matrix (PEDOT/CP) was successfully fabricated. The PEDOT/CP composite material worked as both current collector and electrode in constructed test cells. It had a low sheet resistance of 14 Omega/square and survived the Scotch tape test for adhesion. It also showed excellent stability with no significant conductivity drop after 1000 cycles of bending. The PEDOT from electrode obtained the mass specific capacitance of 179 F/g at scan rate of 10 mV/s, which was among the highest specific capacitances ever reported. This high capacitance was attributed to the combination of the VPP technique and the porous fibrous structure of the cellulose matrix. The EDOT vapor penetrated and polymerized through the CP matrix made of nanometer to micrometer level CP fibers. The highest electrode volumetric capacitance achieved was 13.7 F/cm(3). The whole device achieved an energy density of 0.76 mWh/cm(3) and a power density of 0.01 W/cm(3). Bending the supercapacitor to 90 degrees or rotating to 45 degrees caused no major change in capacitance. Owing to the all nonmetallic materials used to construct the supercapacitor, it can be easily disposed. The incineration of the supercapacitor does not release significant hazardous exhaust.