碳酸氢钠对柔性摩擦纳米发电机输出性能的影响

Effects of Sodium Bicarbonate on Output Performances of Flexible Triboelectric Nanogenerators

作为一种新型能源采集方式,柔性摩擦纳米发电机(TENG)可利用摩擦起电效应和静电感应将人体运动的机械能转化为电能。为了有效提升柔性TENG的输出性能,选用常见食品添加剂碳酸氢钠作为柔性硅橡胶薄膜掺杂材料,系统研究了其掺杂质量分数对硅橡胶基TENG输出性能的影响。实验结果表明,当掺杂质量分数为15%时,TENG的输出开路电压、输出短路电流和输出功率分别为610 V、18μA和31 mW,有效提升了TENG的输出性能,并成功实现了为电子手表供电。这种TENG性能提升方法具有工艺简单、成本低廉的优势,可进一步扩展TENG在可穿戴领域的应用潜力。

As a new type of energy harvesting method,the flexible triboelectric nanogenerators(TENGs) can convert mechanical energy generated during body movement into electrical energy by triboelectrification effect and electrostatic induction.To effectively improve the output performance of the flexible TENG,sodium bicarbonate,a common food additive,was selected as the doping material for the flexible silicon rubber film,and the influence of doping mass fraction of sodium bicarbonate on the output performances of the TENG based on doped silicon rubber was systematically studied.The results show that when the doping mass fraction is 15%,the output open-circuit voltage,the output short-circuit current and the output power of the TENG can reach 610 V,18 μA and 31 mW,respectively.And the output performances of TENG are improved effectively,and the fabricated TENG supplies power for an electronic watch successfully.The method to improve the TENG performances has the advantages of simple process and low cost,and can further expand the application potential of TENGs in the wearable field.