Flexible and stretchable power sources for wearable electronics
Abstrak
Compliant battery design strategy for wearable power sources with high degree of flexibility and stretchability. Flexible and stretchable power sources represent a key technology for the realization of wearable electronics. Developing flexible and stretchable batteries with mechanical endurance that is on par with commercial standards and offer compliance while retaining safety remains a significant challenge. We present a unique approach that demonstrates mechanically robust, intrinsically safe silver-zinc batteries. This approach uses current collectors with enhanced mechanical design, such as helical springs and serpentines, as a structural support and backbone for all battery components. We show wire-shaped batteries based on helical band springs that are resilient to fatigue and retain electrochemical performance over 17,000 flexure cycles at a 0.5-cm bending radius. Serpentine-shaped batteries can be stretched with tunable degree and directionality while maintaining their specific capacity. Finally, the batteries are integrated, as a wearable device, with a photovoltaic module that enables recharging of the batteries.
Topik & Kata Kunci
Penulis (9)
A. Zamarayeva
A. Ostfeld
Michael Wang
Jerica K. Duey
I. Deckman
Balthazar Lechêne
Greg Davies
D. Steingart
A. Arias
Akses Cepat
- Tahun Terbit
- 2017
- Bahasa
- en
- Total Sitasi
- 353×
- Sumber Database
- Semantic Scholar
- DOI
- 10.1126/sciadv.1602051
- Akses
- Open Access ✓