Hybrid Piezo/Triboelectric‐Driven Self‐Charging Electrochromic Supercapacitor Power Package

By Shanshan Qin, Qian Zhang, Xixi Yang, Mengmeng Liu, Qijun Sun, Zhong Lin Wang. Advanced Energy Materials, 2018

169 citations recorded by the source corpus.

The rapid development of personal electronics imposes a great challenge on sustainable and maintenance‐free power supplies. The integration of nanogenerators (NG) and electrochromic supercapacitors (SC) offers a promising solution to efficiently convert mechanical energy to stored electrical energy in a predictable and noticeable manner. In this paper, by integrating hybrid NGs and electrochromic micro‐SCs (µ‐SCs) array, the authors demonstrate a smart self‐charging power package capable of indicating the charging state with color change. The electrochromic µ‐SC employs Ag nanowires/NiO as electrode materials, exhibiting high capacitance (3.47 mF cm−2) and stable cycling performance (80.7% for 10000 cycles). The hybrid NG can produce a high output voltage of 150 V and an enhanced output current of 20 µA to satisfy the self‐charging requirements. The integrated electrochromic µ‐SCs array is capable of self‐charging to 3 V to light up a LED under human palm impact. The charging states can be estimated according to the color differences with the naked eye during the self‐charging process. Moreover, it is possible to design the planar interdigitated electrodes into different shapes according to user demand. The proposed simple and cost‐effective approaches for smart self‐charging power package may pave the way for future intelligent, independent and continuous operation of daily electronics.

Subfields: Biomedical Engineering, Electronic, Optical and Magnetic Materials, Polymers and Plastics

View Paper: https://www.semanticscholar.org/paper/1a1b11ba0ca48ea8ac7ea9648a86487b254a6661

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In Biomedical Engineering

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  3. Long Liu
  4. Tianyiyi He
  5. Feng Wen
  6. Qiongfeng Shi
  7. Bowei Dong
  8. Jianxiong Zhu

In Electronic, Optical and Magnetic Materials

  1. Xinge Guo
  2. Philippe Vachon
  3. Feng Wen
  4. Long Liu
  5. Yanqin Yang
  6. Jianxiong Zhu
  7. Qiongfeng Shi
  8. Bowei Dong

In Polymers and Plastics

  1. Chengkuo Lee
  2. Xinge Guo
  3. Long Liu
  4. Tianyiyi He
  5. Qiongfeng Shi
  6. Feng Wen
  7. Philippe Vachon
  8. Yanqin Yang

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