Please use this identifier to cite or link to this item: https://doi.org/10.1039/c1ee01841h
Title: Polarizable energy-storage membrane based on ionic condensation and decondensation
Authors: Xie, X.N. 
Lee, K.K.
Wang, J. 
Loh, K.P. 
Issue Date: Oct-2011
Citation: Xie, X.N., Lee, K.K., Wang, J., Loh, K.P. (2011-10). Polarizable energy-storage membrane based on ionic condensation and decondensation. Energy and Environmental Science 4 (10) : 3960-3965. ScholarBank@NUS Repository. https://doi.org/10.1039/c1ee01841h
Abstract: Electrical energy storage and management is an urgent issue due to climate change and energy shortage. Dielectric and double-layer capacitors are the two basic energy-storage devices currently available. However, the application of the dielectric capacitor is very limited due to its low capacitance, while the double-layer capacitor suffers from difficult scaling-up and high fabrication cost, even though its capacitance is high. In this work, we present the first energy-storage membrane which stores charge when simply sandwiched between two metal plates. With an ionic conductivity of 2.8 × 10 -4 S cm -1, the membrane is highly polarizable, and its energy-storage mechanism is based on the condensation-decondensation of mobile cations in the membrane negative matrix. The capacitance of a 1.0 cm 2 area membrane is 0.2 F cm -2, and it can be readily scaled up simply by using larger membrane pieces. In view of its extreme simplicity, excellent scalability and practical viability, the novel game-changing membrane reported here may provide a sustainable solution to energy storage. © 2011 The Royal Society of Chemistry.
Source Title: Energy and Environmental Science
URI: http://scholarbank.nus.edu.sg/handle/10635/112630
ISSN: 17545692
DOI: 10.1039/c1ee01841h
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