Self Assembled Carbon Nanotube Enhanced Ultracapacitors

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX10CF68P
Agency Tracking Number: 090106
Amount: $100,000.00
Phase: Phase I
Program: STTR
Awards Year: 2010
Solicitation Year: 2009
Solicitation Topic Code: T6.01
Solicitation Number: N/A
Small Business Information
Nanosonic, Inc.
1485 South Main Street, Blacksburg, VA, 24060-5556
DUNS: 008963758
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Hang Ruan
 Principal Investigator
 (540) 953-1785
 hruan@nanosonic.com
Business Contact
 Lisa Lawson
Title: Contracts Administrator
Phone: (540) 953-1785
Email: llawson@nanosonic.com
Research Institution
 Virginia Polytechnic Institute and State University
 Not Available
 Bradley Department of Electrical and Computer Engineering
Blacksburg, VA, 24061
 (540) 231-4876
 Domestic nonprofit research organization
Abstract
The objective of this NASA STTR program is to develop single wall carbon nanotube (SWCNT) based ultracapacitors for energy storage devices (ESD) application, using NanoSonic's patented molecular level self-assembly process performed at room temperature. Specifically, we would combine advances in metallic SWCNTs, metal and oxide nanoclusters, and polymeric materials and electrostatic self-assembly (ESA) processes, to enable large-area, low-cost and integrated device manufacturing on rigid and flexible substrates. Such a combination of solution-based thin film deposition approaches to form ultracapacitor based devices and materials offers advantages over conventional high temperature and costly processes such as vacuum processes and vapour-phase deposition, in that very different materials can be incorporated uniformly at room temperature and pressure. We will perform synthesis of SWCNT and other precursors that can be used for ESA processing and transitioned to deposition of two-dimensional patterned materials. Layer by Layer fabrication of multilayered CNT enhanced ultracapacitors leads to the analysis of chemical, physical and optical properties during and after synthesis, and verification of material morphology and response. We will study the cyclic voltammetric (CV) behavior and derive the power density from the inner integrated area. We will also investigate the specific capacitance as a function of discharge current density. From here, NanoSonic and Virginia Tech will develop an equivalent circuit model of the CNT ultracapacitor device for NASA applications. NanoSonic and Virginia Tech will also experimentally validate CNT ultracapacitor performance through extended field test evaluation, and possible testing with industrial partners, and produce first-generation ultracapacitors and energy storage systems for sale.

* information listed above is at the time of submission.

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