Natural rubber for sustainable high-power electrical energy generation

Clean, renewable and abundant sources of energy, such as the vast energy of ocean waves, are untapped today, because no technology exists to convert such mechanical motions to electricity economically. Other sources of mechanical energy, such as motions of people and vibrations of buildings and brid...

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Bibliographic Details
Published in:RSC advances 2014-01, Vol.4 (53), p.27905-27913
Main Authors: Kaltseis, Rainer, Keplinger, Christoph, Adrian Koh, Soo Jin, Baumgartner, Richard, Goh, Yu Feng, Ng, Wee Hoe, Kogler, Alexander, Tröls, Andreas, Foo, Choon Chiang, Suo, Zhigang, Bauer, Siegfried
Format: Article
Language:English
Subjects:
Direct power generation
Economics
Electricity
Electronics
Energy density
Fracture toughness
Generators
Natural rubber
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Summary:Clean, renewable and abundant sources of energy, such as the vast energy of ocean waves, are untapped today, because no technology exists to convert such mechanical motions to electricity economically. Other sources of mechanical energy, such as motions of people and vibrations of buildings and bridges, can potentially power portable electronics and distributed sensors. Here we show that natural rubber can be used to construct generators of high performance and low cost. Natural rubber has higher elastic modulus, fracture energy and dielectric strength than a commonly studied acrylic elastomer. We demonstrate high energy densities (369 mJ g −1 ) and high power densities (200 mW g −1 ), and estimate low levelized cost of electricity (5–11 ct kW −1 h −1 ). Soft generators based on natural rubber enable clean, low-cost, large-scale generation of electricity.
ISSN:2046-2069
2046-2069
DOI:10.1039/C4RA03090G