4.8 Article

A Weavable and Scalable Cotton-Yarn-Based Battery Activated by Human Sweat for Textile Electronics

Journal

ADVANCED SCIENCE
Volume 9, Issue 7, Pages -

Publisher

WILEY
DOI: 10.1002/advs.202103822

Keywords

biocompatibility; cotton-yarn-based batteries; sweat-activated battery; textile electronics; weavability

Funding

  1. Chongqing Natural Science Foundation [cstc2019jcyj-msxmX0314]
  2. Fundamental Research Funds for the Central Universities [XDJK2019B002]
  3. Chongqing Engineering Research Center for Micro-Nano Biomedical Materials and Devices
  4. Innovation Platform for Academicians of Hainan Province [SQ2021PTZ0024]

Ask authors/readers for more resources

This study develops a cotton-yarn-based sweat-activated battery that can be used in self-powered wearable electronic devices. The battery shows good performance and stability, tolerating repeated bending and washing. It can be woven into fabrics and used to create self-powered smart textiles for wearable healthcare monitoring applications.
Sweat-activated batteries (SABs) are lightweight, biocompatible energy generators that produce sufficient power for skin-interface electronic devices. However, the fabrication of 1D SABs that are compatible with conventional textile techniques for self-powered wearable electronics remains challenging. In this study, a cotton-yarn-based SAB (CYSAB) with a segmental structure is developed, in which carbon-black-modified, pristine yarn and Zn foil-wrapped segments are prepared to serve as the cathode, salt bridge, and anode, respectively. Upon electrolyte absorption, the CYSAB can be rapidly activated. Its performance is closely related to the ion concentration, infiltrated electrolyte volume, and evaporation rate. The CYSAB can tolerate repeated bending and washing without any significant influence on its power output. Moreover, the CYSABs can be woven into fabrics and connected in series and parallel configurations to produce an energy supplying headband, which can be activated by the sweat secreted from a volunteer during a cycling exercise to power light-emitting diode headlights. The developed CYSAB can also be integrated with yarn-based strain sensors to achieve a smart textile for the self-powered sensing of human motion and breathing. This weavable, washable, and scalable CYSAB is expected to contribute to the manufacturing of self-powered smart textiles for future applications in wearable healthcare monitoring.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.8
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available