Long life reserve Li/SOCl2 battery

A battery for the wide area mine has been developed which can satisfy the normal reserve application requirements of long storage life and high current discharge while also providing long active life and high specific energy. The 3 pound, 40 in.³ battery was designed to provide a maximum of seven months active life supporting pulses of 3.75 amperes at voltages over 8.0 volts while exposed to temperatures ranging from -35°F to +145°F. In this paper, the battery design, including the novel design characteristic of isolating individual cells while still using a common electrolyte reservoir, is presented. Also presented is data obtained during environmental testing, both pre and post activation, as well as performance data during various temperature cycles during a seven month discharge and capacity data at select temperatures