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首页> 外文期刊>Energy & environmental science >Simultaneously harvesting mechanical and chemical energies by a hybrid cell for self-powered biosensors and personal electronicst
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Simultaneously harvesting mechanical and chemical energies by a hybrid cell for self-powered biosensors and personal electronicst

机译：通过混合电池同时收集机械和化学能，用于自供电生物传感器和个人电子产品

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摘要

Electrochemical cells (ECs) are devices that convert chemical energy into electricity through spontaneous oxidation-reduction reactions that occur separately at two electrodes through the transport of protons in the electrolyte solution and the flow of electrons in the external circuit. A triboelectric nanogenerator (TENG) is an effective device that converts mechanical energy into electricity using organic/polymer materials by a contact induced electrification process followed by charge separation. In this paper, we demonstrate the first integration of an EC and a TENG for simultaneously harvesting chemical and mechanical energy, and its application for powering a sensor and even personal electronics. An EC was fabricated using a Cu/NaCI solution/Al structure, on which a thin polydimethylsiloxane (PDMS) film with a micropyramid surface structure was used as the protection layer of the EC for anti-corrosion, anti-contamination and anti-mechanical damage. A TENG was fabricated based on a contact-and-separation process between the PDMS protection layer and the Al electrode layer of the EC. The output performance of the TENG can be increased by embedding BaTiO_3 nanoparticles into the PDMS film layer to enhance the dielectric property. Moreover, we also demonstrated that the produced hybrid energies can be stored in a Li-ion battery for lighting up 30 green LEDs.
机译：电化学电池（EC）是通过自发的氧化还原反应将化学能转化为电能的装置，这些自发的氧化还原反应通过电解质溶液中的质子传输和外部电路中的电子流动分别在两个电极处发生。摩擦电纳米发电机（TENG）是一种有效的设备，它通过接触感应带电过程然后进行电荷分离，使用有机/聚合物材料将机械能转化为电能。在本文中，我们展示了EC和TENG的首次集成，用于同时收集化学能和机械能，及其在为传感器甚至个人电子设备供电方面的应用。使用Cu / NaCl溶液/ Al结构制造EC，在其上使用具有微金字塔表面结构的聚二甲基硅氧烷（PDMS）薄膜作为EC的保护层，以防腐蚀，防污染和抗机械损坏。基于PDMS保护层和EC的Al电极层之间的接触和分离过程制造了TENG。通过将BaTiO_3纳米粒子嵌入PDMS薄膜层中以增强介电性能，可以提高TENG的输出性能。此外，我们还证明了所产生的混合能量可以存储在锂离子电池中，以点亮30个绿色LED。

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  • 来源
    《Energy & environmental science》 |2013年第6期|1744-1749|共6页
  • 作者

    Ya Yang; Hulin Zhang; Jun Chen; Sangmin Lee; Te-Chien Hou; Zhong Lin Wang;

  • 作者单位

    School of Materials Science and Engineering, Georgia Institute ofTechnology, Atlanta,Georgia 30332-0245, USA;

    School of Materials Science and Engineering, Georgia Institute ofTechnology, Atlanta,Georgia 30332-0245, USA;

    School of Materials Science and Engineering, Georgia Institute ofTechnology, Atlanta,Georgia 30332-0245, USA;

    School of Materials Science and Engineering, Georgia Institute ofTechnology, Atlanta,Georgia 30332-0245, USA;

    School of Materials Science and Engineering, Georgia Institute ofTechnology, Atlanta,Georgia 30332-0245, USA;

    School of Materials Science and Engineering, Georgia Institute ofTechnology, Atlanta,Georgia 30332-0245, USA,Beijing Institute of Nanoenergy and Nanosystems,Chinese Academy of Sciences,China;

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