IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v7y2016i1d10.1038_ncomms10146.html
   My bibliography  Save this article

Electrochemically driven mechanical energy harvesting

Author

Listed:
  • Sangtae Kim

    (Massachusetts Institute of Technology)

  • Soon Ju Choi

    (Massachusetts Institute of Technology)

  • Kejie Zhao

    (Massachusetts Institute of Technology)

  • Hui Yang

    (Pennsylvania State University)

  • Giorgia Gobbi

    (Massachusetts Institute of Technology
    Politecnico di Milano)

  • Sulin Zhang

    (Pennsylvania State University)

  • Ju Li

    (Massachusetts Institute of Technology
    Massachusetts Institute of Technology)

Abstract

Efficient mechanical energy harvesters enable various wearable devices and auxiliary energy supply. Here we report a novel class of mechanical energy harvesters via stress–voltage coupling in electrochemically alloyed electrodes. The device consists of two identical Li-alloyed Si as electrodes, separated by electrolyte-soaked polymer membranes. Bending-induced asymmetric stresses generate chemical potential difference, driving lithium ion flux from the compressed to the tensed electrode to generate electrical current. Removing the bending reverses ion flux and electrical current. Our thermodynamic analysis reveals that the ideal energy-harvesting efficiency of this device is dictated by the Poisson’s ratio of the electrodes. For the thin-film-based energy harvester used in this study, the device has achieved a generating capacity of 15%. The device demonstrates a practical use of stress-composition–voltage coupling in electrochemically active alloys to harvest low-grade mechanical energies from various low-frequency motions, such as everyday human activities.

Suggested Citation

  • Sangtae Kim & Soon Ju Choi & Kejie Zhao & Hui Yang & Giorgia Gobbi & Sulin Zhang & Ju Li, 2016. "Electrochemically driven mechanical energy harvesting," Nature Communications, Nature, vol. 7(1), pages 1-7, April.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms10146
    DOI: 10.1038/ncomms10146
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/ncomms10146
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/ncomms10146?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Kumar, Ajeet & Park, Sung Hoon & Patil, Deepak Rajaram & Hwang, Geon-Tae & Ryu, Jungho, 2022. "Effect of aspect ratio of piezoelectric constituents on the energy harvesting performance of magneto-mechano-electric generators," Energy, Elsevier, vol. 239(PB).
    2. Xue, Weijiang & Chen, Tianwu & Ren, Zhichu & Kim, So Yeon & Chen, Yuming & Zhang, Pengcheng & Zhang, Sulin & Li, Ju, 2020. "Molar-volume asymmetry enabled low-frequency mechanical energy harvesting in electrochemical cells," Applied Energy, Elsevier, vol. 273(C).
    3. Sun, Rujie & Li, Qinyu & Yao, Jianfei & Scarpa, Fabrizio & Rossiter, Jonathan, 2020. "Tunable, multi-modal, and multi-directional vibration energy harvester based on three-dimensional architected metastructures," Applied Energy, Elsevier, vol. 264(C).
    4. Cao, Dong-Xing & Lu, Yi-Ming & Lai, Siu-Kai & Mao, Jia-Jia & Guo, Xiang-Ying & Shen, Yong-Jun, 2022. "A novel soft encapsulated multi-directional and multi-modal piezoelectric vibration energy harvester," Energy, Elsevier, vol. 254(PB).
    5. Hu, Yili & Yi, Zhiran & Dong, Xiaoxue & Mou, Fangxiao & Tian, Yingwei & Yang, Qinghai & Yang, Bin & Liu, Jingquan, 2019. "High power density energy harvester with non-uniform cantilever structure due to high average strain distribution," Energy, Elsevier, vol. 169(C), pages 294-304.
    6. Ju Han & Sung Hyun Park & Ye Seul Jung & Yong Soo Cho, 2024. "High-performance piezoelectric energy harvesting in amorphous perovskite thin films deposited directly on a plastic substrate," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    7. Liu, Huicong & Fu, Hailing & Sun, Lining & Lee, Chengkuo & Yeatman, Eric M., 2021. "Hybrid energy harvesting technology: From materials, structural design, system integration to applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 137(C).

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms10146. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.