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Stretchable batteries with self-similar serpentine interconnects and integrated wireless recharging systems

Title
Stretchable batteries with self-similar serpentine interconnects and integrated wireless recharging systems
Author
백운규
Keywords
RECHARGEABLE LITHIUM BATTERIES; ENERGY-STORAGE DEVICES; ARTIFICIAL SKIN; ELECTRONIC SKIN; LARGE-AREA; SILICON; PAPER; MATRIX; PHOTOVOLTAICS; DESIGNS
Issue Date
2013-02
Publisher
Nature Publishing Group
Citation
Nature Communications, Feb 2013, 4, 1543
Abstract
An important trend in electronics involves the development of materials, mechanical designs and manufacturing strategies that enable the use of unconventional substrates, such as polymer films, metal foils, paper sheets or rubber slabs. The last possibility is particularly challenging because the systems must accommodate not only bending but also stretching. Although several approaches are available for the electronics, a persistent difficulty is in power supplies that have similar mechanical properties, to allow their co-integration with the electronics. Here we introduce a set of materials and design concepts for a rechargeable lithium ion battery technology that exploits thin, low modulus silicone elastomers as substrates, with a segmented design in the active materials, and unusual 'self-similar' interconnect structures between them. The result enables reversible levels of stretchability up to 300%, while maintaining capacity densities of similar to 1.1 mAh cm(-2). Stretchable wireless power transmission systems provide the means to charge these types of batteries, without direct physical contact.
URI
http://www.nature.com/articles/ncomms2553http://hdl.handle.net/20.500.11754/57448
ISSN
2041-1723
DOI
10.1038/ncomms2553
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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