U.S. Army Missile Command, Research, Development, and Engineering Center, RDEC Procurement Office, R&D Contracts Division, Redstone Arsenal, AL 35898-5275

61 -- TACAWS THERMAL BATTERY SOL 95X108 POC (RDPC) A. Eiermann, Contract Specialist, AMSMI-RD-PC-HB/EIE, 205/876-8278 or Barbara K. Dobbins, Contracting Officer, 205/876-1470. Synopsis No. R108-95. Sources Sought CBD Announcement for the TACAWS THERMAL BATTERY. The Research, Development and Engineering Center of the U.S. Army Missile Command has a requirement to develop a lithium thermal battery for use in the TACAWS Technology Demonstration Missile. The battery shall be fabricated in a fashion commensurate with comparable lithium thermal batteries which are provided to the Army for use in man handled missile systems. This battery is currently intended for use only in proof-of-principle testing and not for use in a fielded system. This is a primary battery which is inert until activated by firing an internal electric match or squib which initiates battery activation. The battery consists of two identical cell groupings within a common housing which are electrically independent of each other (no common terminal) and from the battery case. These cell groupings are referred to as the SYS 1 and SYS 2 outputs respectively. SYS 1 and SYS 2 are to operate within the range of 28.0 - 36.0 volts over the time of life. Neither is to exceed 36.0 volts at any time, or drop below 28.0 volts under load. In general SYS 1 must supply a steadily increasing current from 6.0A up to 10.5A at end of flight. SYS 2 must supply a background current of 3.5A continuous with superimposed repetitive random current spikes of 8A, 5A, 6A, and 10A over time of flight with a max peak requirement of 20A at .2sec duration. Total energy expenditure is projected as 20kJ for SYS 1 and 10kJ for SYS 2. Minimum battery life is 85sec required, 100sec desired. Time of life is to be maximized as a design consideration. Battery activation is to be accomplished by means of a single squib or match, which shall be a 1-amp/1-watt no-fire, 5-amp all-fire device. The battery case temperature should not exceed a linear rise to a maximum of 360 deg F above pre-activation temperature at any point on the case over the time of life when under load. The battery shall not vent or rupture before, during, or for at least 120 seconds after activation. Outer case diameter is 2.375 inches max. after initiation, with maximum overall length of 4.5 inches inclusive of terminals. The rise time from activation to the time at which the battery output voltages have risen to a minimum of 35.0 volts shall not exceed 1.5 seconds over the given temperature range. The battery internal resistance measured between the positive and negative terminals of both SYS 1 and SYS 2 outputs respectively shall be a minimum of 1000 ohms at 36 volts. The battery shall withstand an applied voltage of up to 36 volts for a period of 10 hours continuous with no degradation in performance upon activation. The battery shall be capable of providing the following minimum isolation resistances: a) SYS 1 Negative to SYS 2 Negative: Resistance shall be no less than 100 ohms, b) SYS 1 and SYS 2, Positive and Negative Terminals to Case: Resistance shall be no less than 1000 ohms for the operating life of the battery. The battery shall be required to operate in the temperature range of from 30 degrees F to 100 degrees F, and shall withstand, temperature shock of from 160 degrees F to -50 degrees F, 12 G lateral and 24 G longitudinal accelerations, and a 20 G terminal sawtooth with a duration of 6 to 9 msec shock. The battery sahll meet operating altitude conditions of exposure to barometric pressure varying from mean sea level to 10,000 feet. All battery markings shall be electroetched on the case as prescribed. Terminal markings shall be legibly stamped. The battery shall be designed to the maximum extent possible to preclude hazards to personnel and equipment in its handling, testing, and operational use. The battery shall not explode after hot soak during discharge into 80% of peak current capacity. The battery shall not explode during autoignition test at 600 deg C. The battery shall not explode when discharged into no load. A total deliverable quantity of twelve (12) batteries is needed NLT March 1996 to support the TACAWS flight test program. The following information is requested relative to the above requirement - no more than five 8 1/2 by 11 pages on the technical approach the contractor proposes for the development of the above battery and no more than five 8 1/2 by 11 inch pages on comparable lithium battery developments, qualification, and delivery to the Department of Defense for missile applications that the contractor has performed during the last 5 years (details such as missile system, battery size, voltage and current capability over time, safety record, Government POC and phone number having knowledge of this battery). To be considered, response must be received no later than close of business 2 May 1995. (0109)

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