State-of-Charge Technology for Zn-air Battery Systems

Award Information
Agency: Department of Defense
Branch: Navy
Contract: M67854-07-C-6505
Agency Tracking Number: N062-101-0490
Amount: $69,877.00
Phase: Phase I
Program: SBIR
Awards Year: 2007
Solicitation Year: 2006
Solicitation Topic Code: N06-101
Solicitation Number: 2006.2
Small Business Information
82 Mechanic Street, Pawcatuck, CT, 06379
DUNS: 617158712
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Arthur Dobley
 Research Scientist
 (860) 599-1100
 adobley@lithion.com
Business Contact
 Vincent Yevoli
Title: Chief Operating Officer
Phone: (860) 599-1100
Email: vyevoli@lithion.com
Research Institution
N/A
Abstract
Many missions in remote locations are currently limited by the amount of power that can be carried on foot and/or left in place for unattended equipment operation. To solve the soldier’s battery weight burden, advanced metal-air batteries are being developed. The monitoring of the effective battery power is a significant aspect for the military’s use of these batteries. One problem with the advanced metal-air chemistry is a lack of a state-of-charge (SOC) indication technology that factors several environmental influences as well as the discharge profile. The benefits from the use of SOC technology are: indication of battery capacity, effective power management, prevention of premature replacement of batteries and reduced inventory levels resulting in overall cost reduction. The major drawback from the use of SOC technology is they can be expensive especially if discarded with a used battery. Yardney proposed SOC technology provides the benefits without the drawbacks. Yardney's SOC technology proposal can be incorporated in the battery adapter cable or as a stand-alone unit eliminating the drawbacks. It will use existing technology and a custom computer chip to monitor and indicate the batteries SOC with high accuracy. It will ultimately be small in size, low in weight, inexpensive and accurate.

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

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