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|Title:||Polarizable energy-storage membrane based on ionic condensation and decondensation|
|Authors:||Xie, X.N. |
|Source:||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|
|Appears in Collections:||Staff Publications|
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