USA As Represented by Secretary of the Navy

William H Shipman

Joseph F McCartney

Forrest R Goodson

A lithium, thionyl chloride battery is provided with an electrolyte which kes it safe under a reverse voltage condition. The electrolyte is niobium pentachloride which is dissolved in the thionyl chloride.

Lithium-thionyl chloride battery with niobium pentachloride electrolyte

An improvement is provided for a battery which has an anode and a cathode, pair of spaced apart concentric tubes, a piston mounted in the inner tube, an electrolyte disposed in the inner tube between one side of the piston and one end of the inner tube, and a device disposed in the inner tube between the other side of the piston and the other end of the inner tube for biasing the piston toward the one end of the inner tube. The improvement includes the cathode being porous and being mounted in the annular space, and an electrolyte which substantially completely fills the pores of the cathode. The volume of the electrolyte within the porous cathode is substantially only sufficient for stoichiometry. A passageway is provided for communicating the electrolyte side of the inner tube with the annular space. The volume of the electrolyte within the inner tube is substantially only sufficient for filling the voids left within the annular space as the products react. With this arrangement the anode of the battery will be substantially completely reacted regardless of the position of the battery, thus resulting in a higher energy density.

Position insensitive battery

A battery apparatus is provided which includes a plurality of modules which re mounted end-to-end in a stacked pile configuration. Each module contains a plurality of bipolar electrodes. One end of each module has a flexible bladder for storing an electrolyte. The bladders in a collapsed condition provide spacing between the modules for cooling. Each module has a passageway for communicating electrolyte from the bladder to the bipolar electrodes. A device seals each passageway from the respective bladder in one mode of operation and is actuated by pressure on the bladder to open the passageway in another mode of operation. With this arrangement pressure on the bladders will distribute electrolyte into each module and the bladders will collapse to provide a cooling space between the modules.

Water cooled bipolar battery apparatus

A safe high energy density battery which includes a lithium anode, a cathte of bromine, and an electrolyte of tetrabutylammonium bromine.

Safe high energy density battery

A super high energy density battery which includes a lithium anode, a catyte of liquid bromine trifluoride, and an electrolyte of antimony pentafluoride.

Growing community of inventors

La Mesa, CA, United States of America

William H Shipman