Low-Cost Thermoelectric Subsytem for Self-Powered Equipment

Award Information
Agency: Department of Defense
Branch: Army
Contract: W911QY-10-C-0063
Agency Tracking Number: A093-162-1090
Amount: $119,973.00
Phase: Phase I
Program: SBIR
Awards Year: 2010
Solicitation Year: 2009
Solicitation Topic Code: A09-162
Solicitation Number: 2009.3
Small Business Information
239 8th street, Suite 12, San Francisco, CA, 94103
DUNS: 830369562
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 (917) 575-8724
Business Contact
 Adam Lorimer
Title: CEO
Phone: (925) 408-1812
Email: adam@alphabetenergy.com
Research Institution
This SBIR Phase I project will address the technological risks in bringing silicon-based nanostructured thermoelectric materials from a proven laboratory concept to a scalable prototype device. Thermoelectric materials offer great promise in development of self-powered equipment for military use. They are compact, lightweight, highly reliable and virtually maintenance free. Implementation to date has been precluded by the high cost per watt and the low design temperature of existing thermoelectric materials Alphabet Energy’s silicon nanowire thermoelectric materials use low-grade silicon as a raw material and a manufacturing process that utilizes standard semiconductor fabrication tools and facilities. This leads to a device cost in the order of 20¢/Watt, 50-100 times cheaper than existing thermoelectrics. Silicon nanowire thermoelectric materials have been tested at temperatures up to 600C without degradation or loss of performance. As such much greater temperature gradients are possible, leading to power densities with existing performance materials of up to 17 kW/m2. Alphabet Energy’s SiNW thermoelectrics can provide a 100W of electric generation for a cost of as little as $16 at 10% efficiency. Furthermore we have an established development pathways to higher efficiencies of 20% or more, leading to a cost of only $8.

* Information listed above is at the time of submission. *

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