백운규
2018-04-03T08:00:45Z
2018-04-03T08:00:45Z
2013-02
Nature Communications, Feb 2013, 4, 1543
2041-1723
http://www.nature.com/articles/ncomms2553
http://hdl.handle.net/20.500.11754/57448
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.
This material is based upon work supported by a National Security Science and Engineering Faculty Fellowship and a grant from the US Department of Energy, Division of Materials Sciences under Award No. DEFG02-91ER45439. The experiments used facilities at the Materials Research Laboratory and Center for Microanalysis of Materials at the University of Illinois at Urbana-Champaign, supported by the US Department of Energy, Division of Materials Sciences under Award No. DE-FG02-07ER46471 and DE-FG02-07ER46453. Y.H. acknowledges NSF grant ECCS-0824129, and ISEN from Northwestern University for the support of the mechanics modelling effort. J.A.R. and U. P. acknowledge the National Research Foundation of Korea (NRF) through a grant (K2070400000307A050000310, Global Research Laboratory (GRL) Programme) provided by the Korean Ministry of Education, Science & Technology (MEST), for efforts on slurry development. We thank Dr Jon Howell of DuPont for donating the allyl amide functional Krytox used in this study, and also thank Shu Xiang for many stimulating discussions.
en
Nature Publishing Group
RECHARGEABLE LITHIUM BATTERIES
ENERGY-STORAGE DEVICES
ARTIFICIAL SKIN
ELECTRONIC SKIN
LARGE-AREA
SILICON
PAPER
MATRIX
PHOTOVOLTAICS
DESIGNS
Stretchable batteries with self-similar serpentine interconnects and integrated wireless recharging systems
Article
4
10.1038/ncomms2553
1-2
NATURE COMMUNICATIONS
Xu, Sheng
Zhang, Yihui
Cho, Jiung
Lee, Juhwan
Huang, Xian
Jia, Lin
Fan, Jonathan A.
Su, Yewang
Su, Jessica
Zhang, Huigang
Paik, Ungyu
2013011396
S
COLLEGE OF ENGINEERING[S]
DEPARTMENT OF ENERGY ENGINEERING
upaik