论文信息 - Highly stretchable energy harvester using piezoelectric helical structure for wearable applications

Highly stretchable energy harvester using piezoelectric helical structure for wearable applications

Proposed is a helical piezoelectric structure for a highly stretchable energy harvester to be applied on the human body. The proposed device consists of two counter-wound helical structures around a zcore structure made of an elastic fabric string. The inner fabric helix is used to separate the outer piezoelectric helix from the core to obtain a highly stretchable device. When stretched by 60% of its initial length, the device generates a maximum output voltage and power of 140 Vp-p and 0.6 mW, respectively, at an operation frequency of 4 Hz.

[1] Kevin M. Farinholt,et al. Energy harvesting from a backpack instrumented with piezoelectric shoulder straps , 2007 .

[2] Kwang-Seok Yun,et al. Woven piezoelectric structure for stretchable energy harvester , 2013 .

[3] Joseph A. Paradiso,et al. Energy Scavenging with Shoe-Mounted Piezoelectrics , 2001, IEEE Micro.

[4] Adnan Harb,et al. Energy harvesting: State-of-the-art , 2011 .

[5] Kwang-Seok Yun,et al. Piezoelectric shell structures as wearable energy harvesters for effective power generation at low-frequency movement , 2012 .