Comprehensive Model for Ambient Temperature, Electrolyte-Activated Reserve Batteries

Award Information
Agency: Department of Defense
Branch: Missile Defense Agency
Contract: HQ0006-10-C-7251
Agency Tracking Number: B083-022-0076
Amount: $749,993.00
Phase: Phase II
Program: SBIR
Awards Year: 2010
Solicitation Year: 2008
Solicitation Topic Code: MDA08-022
Solicitation Number: 2008.3
Small Business Information
P.O. Box 899, 64 Main St., Enfield, NH, 03748
DUNS: 196519511
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Marc Kenton
 Vice President, Engineeri
 (603) 632-4156
Business Contact
 William Baschnagel
Title: Vice President, Operation
Phone: (603) 632-4156
Research Institution
Reserve lithium oxyhalide and silver/zinc batteries are power sources of choice for many missiles and other weapons systems. These batteries achieve long shelf life by storing the liquid electrolyte separately in a reservoir. Upon activation, the electrolyte is rapidly injected into the battery cells, most often using a pyrotechnic gas generator. The design of the system and the diagnosis of performance problems are challenging for several reasons; one key complication is the feedback of the hydraulic design of the battery on the pressure driving the electrolyte reservoir’s piston and the pressure-dependent gas generation rate. These challenges are made more difficult because no analytical tools are currently available to assist battery engineers. The trial-and-error procedure now used to develop these batteries greatly increases the time and expense necessary to qualify a new design and to deal with problems encountered in service. To address this need, Erigo proposes to develop a comprehensive, easy-to-use computer model that simulates the pyrotechnic gas generator and the battery itself in an integrated fashion. The proposed development directly leverages technology developed at Erigo in Phase I to model the gas generator, as well as a detailed electrochemistry model developed on a separate project.

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

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