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DTSTART;TZID=America/New_York:20191008T103000
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DTSTAMP:20260408T112731
CREATED:20190923T191922Z
LAST-MODIFIED:20190923T191922Z
UID:2041-1570530600-1570536000@seasevents.nmsdev7.com
SUMMARY:MEAM Seminar: "Scalable Fabrication of Nanostructured Energy Storage Systems"
DESCRIPTION:The demand for autonomous devices\, including intelligent sensor platforms for IOT applications\, is driving a parallel need for efficient energy storage systems that are inexpensive to produce\, exhibit high power and energy densities\, and occupy a minimum footprint on the device. Necessary enhancement in the performance of batteries and supercapacitors can be realized by fabrication of hierarchical 3D architectures with dimensional control ranging from the nm to the macroscale\, however the most promising structures have proven difficult to achieve using approaches suitable for large scale production. \nWe are fabricating energy storage devices using combinations of nanoimprint lithography\, self-assembly\, and novel approaches to high-rate materials synthesis including rapid photothermal processing. In one example\, 3D lithium-ion microbatteries are prepared via imprint lithography using inks comprised of LiMn2O4 and Li4Ti5O12 nanoparticles and the battery cell is integrated vertically through layer-by-layer (LBL) assembly. The batteries are shown to possess superior capacity retention and high-power density. We also fabricate hierarchical graphene/carbon/FeOx nanoparticle composite anodes for high performance Li ion batteries using a combination of imprint lithography and photothermal processing\, wherein multilayer graphene embedded within a porous carbon matrix is generated in situ from a simple precursor film\, eliminating the need for externally sourced graphene. The approaches employed are rapid and highly efficient\, enabling batch fabrication for 3D microbattery systems as well as the roll-to-roll production of large energy storage batteries.
URL:https://seasevents.nmsdev7.com/event/meam-seminar-scalable-fabrication-of-nanostructured-energy-storage-systems/
LOCATION:Wu and Chen Auditorium (Room 101)\, Levine Hall\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
ORGANIZER;CN="Mechanical Engineering and Applied Mechanics":MAILTO:meam@seas.upenn.edu
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