Conference proceeding
Using Tobacco mosaic virus template for the fabrication of three-dimensional hierarchical microbattery electrodes with high energy and high power density
NANOEPITAXY: MATERIALS AND DEVICES V, v 8820, pp 88200T-88200T-8
25 Aug 2013
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
We present a novel approach for the fabrication of lithium-ion microbattery electrodes which deliver high energy and high power density. The key enabling technology is the use of self-assembled Tobacco mosaic virus (TMV) nanoforests as a template for active battery materials. The self-assembling TMV is a genetically modified biological nanorod with increased metal binding properties for enhanced manufacturability. High energy density is achieved due to the active surface area increase within a given footprint by combining TMV with three-dimensional (3D) microfabricated structures. The TMV nanostructure enables high power density through larger electrode/electrolyte contact area and faster charge transport.
The electrodes consist of an array of electroplated gold micropillars. The pillars are coated with the self-assembled nanoscale TMV template and subsequently metalized in-place. Active battery material (V2O5) is conformally deposited using atomic layer deposition (ALD) on the hierarchical micro/nano network. Electrochemical testing of these electrodes indicates a 3-5 fold increase in energy density, compared to the TMV-templated electrodes without micropillars, without increasing footprint area or reducing rate performance. Further increase in energy density can be achieved by increasing surface area of 3D microelements as demonstrated by fabrication and electrochemical testing of the electrodes with hollow gold micropillars. Scaling up energy density by increasing active material thickness beyond 100 nm revealed some loss in surface area which highlighted the importance of nanoscale engineering for achieving maximum energy and power density in energy storage systems.
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Details
- Title
- Using Tobacco mosaic virus template for the fabrication of three-dimensional hierarchical microbattery electrodes with high energy and high power density
- Creators
- Ekaterina Pomerantseva - University of Maryland, College ParkKonstantinos Gerasopoulos - University of Maryland, College ParkMarkus Gnerlich - University of Maryland, College ParkPhilipp Odenwald - University of Maryland, College ParkJames Culver - University of Maryland, College ParkReza Ghodssi - University of Maryland, College Park
- Contributors
- N P Kobayashi (Editor)A A Talin (Editor)A V Davydov (Editor)M S Islam (Editor)
- Publication Details
- NANOEPITAXY: MATERIALS AND DEVICES V, v 8820, pp 88200T-88200T-8
- Series
- Proceedings of SPIE
- Publisher
- Spie-Int Soc Optical Engineering
- Number of pages
- 8
- Grant note
- Nanostructures for Electrical Energy Storage 12DES0001160 / Office of Basic Energy Sciences; United States Department of Energy (DOE) Energy Frontier Research Center NSF-CMMI 0927693 / NSF Nanomanufacturing Program; National Science Foundation (NSF) U.S. Department of Energy; United States Department of Energy (DOE) Office of Science; United States Department of Energy (DOE)
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000325420200009
- Scopus ID
- 2-s2.0-84897670092
- Other Identifier
- 991020785754304721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Engineering, Electrical & Electronic
- Nanoscience & Nanotechnology
- Optics
- Physics, Applied