Tags

Type your tag names separated by a space and hit enter

Flexible and stretchable power sources for wearable electronics.
Sci Adv. 2017 06; 3(6):e1602051.SA

Abstract

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.

Authors+Show Affiliations

Department of Electrical Engineering and Computer Sciences, University of California Berkeley, 508 Cory Hall, Berkeley, CA 94720, USA.Department of Electrical Engineering and Computer Sciences, University of California Berkeley, 508 Cory Hall, Berkeley, CA 94720, USA.Mechanical and Aerospace Engineering, Andlinger Center for Energy and the Environment, Princeton University, D 428 Engineering Quadrangle, Princeton, NJ 08544, USA.Department of Electrical Engineering and Computer Sciences, University of California Berkeley, 508 Cory Hall, Berkeley, CA 94720, USA.Department of Electrical Engineering and Computer Sciences, University of California Berkeley, 508 Cory Hall, Berkeley, CA 94720, USA.Department of Electrical Engineering and Computer Sciences, University of California Berkeley, 508 Cory Hall, Berkeley, CA 94720, USA.Mechanical and Aerospace Engineering, Andlinger Center for Energy and the Environment, Princeton University, D 428 Engineering Quadrangle, Princeton, NJ 08544, USA.Mechanical and Aerospace Engineering, Andlinger Center for Energy and the Environment, Princeton University, D 428 Engineering Quadrangle, Princeton, NJ 08544, USA.Department of Electrical Engineering and Computer Sciences, University of California Berkeley, 508 Cory Hall, Berkeley, CA 94720, USA.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

28630897

Citation

Zamarayeva, Alla M., et al. "Flexible and Stretchable Power Sources for Wearable Electronics." Science Advances, vol. 3, no. 6, 2017, pp. e1602051.
Zamarayeva AM, Ostfeld AE, Wang M, et al. Flexible and stretchable power sources for wearable electronics. Sci Adv. 2017;3(6):e1602051.
Zamarayeva, A. M., Ostfeld, A. E., Wang, M., Duey, J. K., Deckman, I., Lechêne, B. P., Davies, G., Steingart, D. A., & Arias, A. C. (2017). Flexible and stretchable power sources for wearable electronics. Science Advances, 3(6), e1602051. https://doi.org/10.1126/sciadv.1602051
Zamarayeva AM, et al. Flexible and Stretchable Power Sources for Wearable Electronics. Sci Adv. 2017;3(6):e1602051. PubMed PMID: 28630897.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Flexible and stretchable power sources for wearable electronics. AU - Zamarayeva,Alla M, AU - Ostfeld,Aminy E, AU - Wang,Michael, AU - Duey,Jerica K, AU - Deckman,Igal, AU - Lechêne,Balthazar P, AU - Davies,Greg, AU - Steingart,Daniel A, AU - Arias,Ana Claudia, Y1 - 2017/06/16/ PY - 2016/08/28/received PY - 2017/04/28/accepted PY - 2017/6/21/entrez PY - 2017/6/21/pubmed PY - 2019/7/2/medline KW - Wearable power sourses KW - flexible batteries KW - integrated wearable power systems KW - stretchable batteries SP - e1602051 EP - e1602051 JF - Science advances JO - Sci Adv VL - 3 IS - 6 N2 - 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. SN - 2375-2548 UR - https://www.unboundmedicine.com/medline/citation/28630897/Flexible_and_stretchable_power_sources_for_wearable_electronics_ L2 - https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/28630897/ DB - PRIME DP - Unbound Medicine ER -