Oh Seongjae, Kim Hyeon Ji, Lee Seon, Kim Keon Jung, Kim Shi Hyeong
Department of Advanced Textile R&D, Korea Institute of Industrial Technology, Ansan 15588, Republic of Korea.
Semiconductor R&D Center, Samsung Electronics, Hwaseong 18448, Republic of Korea.
Polymers (Basel). 2024 Aug 30;16(17):2477. doi: 10.3390/polym16172477.
Mechanical energy harvesters made from soft and flexible materials can be employed as energy sources for wearable and implantable devices. However, considering how human organs and joints expand and bend in many directions, the energy generated in response to a mechanical stimulus in only one direction limits the applicability of mechanical energy harvesters. Here, we report carbon nanotube (CNT) sheets/an elastomer bilayer harvesting electrode (CBHE) that converts two-axis mechanical stimulation into electrical energy. The novel microwinkled structure of the CBHE successfully demonstrates an electrochemical double-layer (EDL) capacitance change from biaxial mechanical stimulation, thereby generating electrical power (0.11 W kg). Additionally, the low modulus (0.16 MPa) and high deformability due to the elastomeric substrate suggest that the CBHE can be applied to the human body.
由柔软且灵活的材料制成的机械能采集器可被用作可穿戴和植入式设备的能源。然而，考虑到人体器官和关节会在多个方向上伸展和弯曲，仅在一个方向上响应机械刺激而产生的能量限制了机械能采集器的适用性。在此，我们报告了一种碳纳米管（CNT）片/弹性体双层采集电极（CBHE），它能将双轴机械刺激转化为电能。CBHE的新型微皱纹结构成功地证明了双轴机械刺激会引起电化学双层（EDL）电容变化，从而产生电能（0.11 W/kg）。此外，由于弹性体基底，其具有低模量（0.16 MPa）和高可变形性，这表明CBHE可应用于人体。
