Abstract: An activatable electrochemical battery implementing lithium/oxyhalide couples.The present invention relates to an activatable lithium/SOCl.sub.2 or lithium/SO.sub.2 Cl.sub.2 primary battery in which means are provided for eliminating leakage currents and means are provided for controlling the temperature rise during discharge.Thus, each electrochemical element is enclosed, in a sealed insulating housing constituted by a bottom, a cover, and a spacer constituting its side wall. The terminals of the elements are plates of nickel enabling heat to be dissipated into a heat-conducting resin.

Abstract: A battery in accordance with the invention comprises: p1 an electrochemical block (3) constituted by a large number of electrochemical couples; p1 a network for irrigating said electrochemical couples with electrolyte; p1 a heat exchanger (7) for externally dumping the heat evolved during discharge; p1 a pump (5) for causing the electrolyte (10) to circulate through the irrigation network and said heat exchanger; and p1 a device (2) for storing electrolyte and transferring it to said electrochemical block (3) on activation, said device including a supply of electrolyte connected to a gas generator and also to an inlet to said pump.

Abstract: A small quantity of bromine (0.1 to 1 m/liter of electrolyte) is added to the electrolyte of an activatable Li/SO.sub.2 Cl.sub.2 battery. This small amount of bromine acts as a catalyst, not as a depolarizer. Considerable improvement is thus obtained in the electrical performance of the battery.

Abstract: An activatable battery including a heat exchanger, the battery comprising a Volta pile enclosed in an insulating envelope, with each cell of the pile comprising a porous cathode, a separator, a lithium anode, and a metal collector, and the heat exchanger being constituted by a circuit for forced circulation of the electrolyte, said circuit comprising:electrolyte injection manifolds (25) and electrolyte collector manifolds (26), both having openings to the outside of said insulating envelope;means for transferring electrolyte from the injection manifolds to the collector manifolds through each cell, said means including channels (121, 126) formed through at least one electrode of each cell; anda pump (22) for causing the electrolyte to circulate from the injection manifolds to the collector manifolds.

Abstract: The present invention concerns an electrochemical generator with a lithium anode and liquid cathode and, notably, generators using the Li/SO.sub.2, Li/SOCl.sub.2 and Li/SO.sub.2 Cl.sub.2 couples. This generator comprises of stack of flat elements threaded onto rods, one end of each rod being attached to the cover of a case. The anodes are threaded by flexible lugs which act as current collectors and fuses.