The Power Generation Characteristics and Durability of a Vibration Power Generation Device using Piezoelectric Thick Film Formed Directly by Screen Printing on a Stainless Steel Substrate

14th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

Oishi, A.^1 ; Okumura, H.^1 ; Katsumura, H.^1 ; Kagata, H.^1

Ecomaterials Development Center, Corporate Engineering Division, Panasonic Corporation, 1006 Kadoma, Kadoma City, Osaka

571-8506, Japan^1

关键词: Maximum output power;    Piezoelectric film;    Piezoelectric thick films;    Power generation devices;    Resonance frequencies;    Resonant vibrations;    Stainless steel substrates;    Thin-film technique;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/557/1/012131/pdf
DOI  :  10.1088/1742-6596/557/1/012131

来源: IOP

【 摘 要 】

This paper presents a small, high-performance and novel device that generates power from vibrations, made using screen-printing to form a piezoelectric thick film directly on a stainless steel substrate. This simple and cheap method realizes a 20-40 μm-thick piezoelectric film, otherwise difficult to achieve using thin-film techniques or ceramic sintering, on a stainless steel substrate. A maximum output power of 1.1 mW was recorded with acceleration of 0.1 G0p (0.98 ms-2) applied at a resonance frequency of 24 Hz. We also evaluated the durability of the device by repeatedly striking the tip of the element. Output power exceeding 100 mW under damped resonant vibration was generated at the instant of striking, with approximately 0.9 mJ of power measured per single damped vibration. No deterioration was seen in the integrity of the stainless steel substrate or the piezoelectric thick film after over 10 million strikes.