Abstract: A resealable vent closure for galvanic cells, such as non-aqueous oxyhalide cells, which comprises a castellated type of cap employed to compress and retain a resilient deformable member over a vent orifice in the cell's housing such that the compressed resilient deformable member will form a normally tight seal at the vent orifice which will vent and reseal after a predetermined pressure build up within the cell. The invention is also directed to a method for assembling an electrochemical cell, such as a nonaqueous oxyhalide cell, with the above-described resealable vent closure.

Abstract: An improved miniature galvanic cell construction having a sealing gasket with channels defined through the base of the gasket. The channels provide means for the exchange of gaseous products around the cell separator and between the electrode compartments so as to reduce the overall internal pressure of the cell.

Abstract: An improved miniature galvanic cell wherein a porous annulus is disposed between the base of a sealing gasket and a cell separator so as to provide passageways around the separator and between the electrode compartments for the exchange of gaseous products so as to reduced the overall internal pressure of the cell.

Abstract: The invention relates to an electrochemical cell employing a cathode collector, an anode, a separator and an electrolyte containing a liquid active reducible cathode, and wherein recesses are provided on that surface of the cathode collector which faces the anode so as to improve access of liquid cathode to electrochemically active sites on and within the cathode collector.

Abstract: An electrochemical cell employing a coiled electrode assembly in which the segment of one wound electrode strip that is not sandwiched between layers of the other wound electrode strip has an average thickness less than the average thickness of the remaining segment of the electrode that is sandwiched between layers of the other wound electrode thereby providing for increased capacity input for a given cell volume and/or provide for a high output rate capability for a given cell volume.

Abstract: A resealable vent closure for galvanic cells, such as non-aqueous oxyhalide cells, which comprises a castellated type of cap employed to compress and retain a resilient deformable member over a vent orifice in the cell's housing such that the compressed resilient deformable member will form a normally tight seal at the vent orifice which will vent and reseal after a predetermined pressure build up within the cell. The invention is also directed to a method for assembling an electrochemical cell, such as a nonaqueous oxyhalide cell, with the above-described resealable vent closure.

Abstract: Battery comprising a container housing a plurality of sealed cells employing an oxyhalide-, halide- and/or liquid sulfur dioxide-containing nonaqueous electrolyte, and a porous shock absorbing material impregnated with an immobilizing agent which will react with and neutralize any oxyhalide, halide, liquid sulfur dioxide or their reaction products that escape from the cells.

Abstract: The invention relates to a cylindrical type cell employing an outer cathode or cathode collector, a separator and an inner disposed anode in the form of at least two discrete bodies, said anode bodies having centrally disposed biasing means for continuously exerting an outward force against said anode bodies so as to provide good physical contact between the anode-separator-cathode or cathode collector interfaces.

Abstract: The invention relates to a cylindrical type cell employing an outer active metal anode, a separator and an inner disposed cathode or cathode collector in the form of at least two arcuate bodies, said cathode or cathode collector having outward resilient biasing means for providing continuous physical contact between the anode-separator-cathode or cathode collector interfaces.

Abstract: Primary dry cell comprising a metal anode cup having therein a cathode mix containing an electrolyte, separated from the side wall of the anode cup by an electrolyte-permeable separator, and having an open end which is gas-tightly sealed by a closure including a vent, wherein an electrolyte-impermeable mask is positioned adjacent to the separator and extends substantially the whole distance between the bottom of the anode cup and the void space defined between the cathode mix and the seal closure.

Abstract: Disclosed is a primary dry cell comprising a zinc anode, a cathode depolarizer mix cake containing manganese dioxide and a conductive material, and a separator interposed between the anode and cathode depolarizer mix cake, the cathode depolarizer mix cake being wetted with an inner electrolyte consisting essentially of an aqueous solution containing a metallic salt selected from the group consisting of zinc chloride, zinc bromide, magnesium chloride, magnesium perchlorate and magnesium bromide, the inner electrolyte constituting from about 60 to 71 percent by volume of the total cathode depolarizer mix cake.