Intelligent Variable Emittance Panels Using New, """"True"""" Solid Electrolyte

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNG04CA20C
Agency Tracking Number: 022299
Amount: $599,981.00
Phase: Phase II
Program: SBIR
Awards Year: 2004
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Ashwin-Ushas Corp Inc.
206 Ticonderoga Blvd, Freehold, NJ, 07728
DUNS: 807772942
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Prasanna Chandrasekhar
 Principal Investigator
 (732) 462-1270
 chandra.p@ashwin-ushas.com
Business Contact
 Prasanna Chandrasekhar
Title: Business Official
Phone: (732) 462-1270
Email: chandra.p@ashwin-ushas.com
Research Institution
N/A
Abstract
This work further developed a highly promising Variable Emittance technology for spacecraft thermal control based on Conducting Polymer (CP) electrochromics developed earlier by this firm with the Air Force, NASA and JPL, with: Extremely thin (< 0.2 mm), flexible (plastic), lightweight (0.176 kg/m^2), extremely durable, variable area (0.5 cm^2 - 0.5 m^2), flat-panel construction; high Delta Emittance (DE) (> 0.4); cyclability > 10^4 cycles, switching < 5 s; power 40 iW/cm^2; proven space durability; low cost (est. < $5K/m^2). A key technical barrier of this earlier-generation technology was the need for a hermetic seal and bulky CsI windows/frame, problems associated therewith, due to the gel electrolyte used needing some moisture content to be ?sealed in?. In Phase I, use of newly discovered, ?true? solid, room temperature molten salt electrolytes (?IonEls?) eliminated the hermetic seal. Devices showed: DE > 0.5; excellent space durability (> 23000 electrochromic, > 90 thermal cycles over 23 days in space vacuum, > 500 h UV, operating temperature -45 to +100 C, no outgassing). Alpha(s)-lowering and ITO coatings were demonstrated. Phase II will complete a much more rigorous space durability testing regime, optimize devices, demonstrate intelligent control of device arrays, start pilot-scale production and costing, and initiate flight tests.

* information listed above is at the time of submission.

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