Triboelectrification has been known and discussed since antiquity. Triboelectrification occurs in the human body due to friction between human skin and other materials such as clothing. However, charges on the body have not been harvested to power small electronics. Here, we report for the first time that the electricity generated on the human body due to triboelectrification can be measured and harvested using human body-based non-electrode triboelectric nanogenerators (H-TENGs). The H-TENGs can have an output of up to 3.3 W/m² and can spontaneously harvest energy from several people. The functions of the human body in the H-TENGs are analyzed and experimentally proven to be those of a triboelectric material, conductor and capacitor. Our results demonstrate that the triboelectricity generated on a human body can be harvested using H-TENGs and provide scientific insights into body functions that will promote further studies of TENGs.

自古以来，摩擦起电一直是众所周知的。由于人的皮肤与其他材料（例如衣服）之间的摩擦，在人体中发生了摩擦起电。但是，尚未收集到身上的电荷来为小型电子设备供电。在这里，我们首次报告可以使用基于人体的非电极摩擦纳米发电机（H-TENGs）来测量和收集由于摩擦带电在人体上产生的电流。H-TENG的输出功率最高为3.3 W / m ²并可以自发地从几个人身上收集能量。对人体在H-TENG中的功能进行了分析，并通过实验证明是摩擦电材料，导体和电容器的功能。我们的结果表明，可以使用H-TENGs收集人体产生的摩擦电，并提供对机体功能的科学见解，这将促进对TENGs的进一步研究。