Integrated Photovoltaic Energy Scavenging and Storage System

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: W31P4Q-10-C-0043
Agency Tracking Number: 09SB2-0227
Amount: $98,969.00
Phase: Phase I
Program: SBIR
Awards Year: 2010
Solicitation Year: 2009
Solicitation Topic Code: SB092-010
Solicitation Number: 2009.2
Small Business Information
9950 Wakeman Drive, Manassas, VA, 20110
DUNS: 604717165
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Philip Johnson
 Senior Electrical Systems Engineer
 (703) 396-6352
Business Contact
 Scott Hart
Title: Financial Analyst
Phone: (617) 500-0536
Research Institution
The majority of modern portable, wireless electrical devices are powered by batteries; when the batteries are depleted they must be replaced or recharged, which is a problem when the system operates in remote areas or an enemy's region. The capability to scavenge energy from the environment to recharge batteries and/or directly power electronics is essential to increase system lifetime and utility. Solar radiation is the most abundant and highest power source for scavenging, but is completely absent at night. Consequently, alternative power system designs are needed which supplement solar based scavengers with complementary techniques minimizing impact on system size and weight. Aurora proposes to develop an integrated energy scavenging and storage system which utilizes: 1) triple junction solar cells for highly efficient solar energy scavenging, 2) advanced infrared photovoltaics for night time thermal energy scavenging, and 3) thin film lithium cell technology to produce a power dense storage system. These component technologies will be stacked in a layered fashion and integrated with the system structure to provide additional weight savings and footprint reduction. The proposed system has the capability to produce as much as 30 mW/cm2 from incident solar radiation and convert thermal radiation at efficiencies as high as 3%.

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

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government