I&EC 61 |
| Bruce Dunn, Yuting Yeh, James Lim, and Paul Tang. Department of Materials Science and Engineering, University of California, Los Angeles, 6532 Boelter Hall, Los Angeles, CA 90095-1595 |
| The specific capacity and operating temperature range for thick-film lithium polymer secondary batteries have been improved by incorporating nanostructured materials. The mesoporous architecture and high surface area of vanadium oxide aerogels lead to electrode materials with higher lithium ion capacities and rate capabilities as compared to bulk vanadium oxide. The unique multivalent ion insertion properties of the vanadium oxide aerogel offer the prospect of moving away from lithium-based systems to safer and more environmentally benign systems without compromising energy density. The electrolyte is a nanostructured material in which silica nanoparticles provide three-dimensional mechanical reinforcement of the microstructure without compromising the ionic conductivity produced by the lithium electrolyte phase. The electrolyte withstands elevated temperatures without deforming and enables the battery to operate between room temperature and 150°C. |
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Nanotechnology and the Environment
1:30 PM-4:50 PM, Monday, March 29, 2004 Marriott -- Grand Ballroom F, Oral
Division of Industrial and Engineering Chemistry |