Battery cell with electrode, electrically and thermally conductive collector, with internal and external heat exchanger

A battery cell, with at least one assembly of electrodes, anode and cathode, covered up to the border of the poles with active composite material arranged in reflection, where the border of the anode pole is opposite to the edge of the cathode pole, with at least one border of poles bent, to form a base at at least one end, where it is continued with at least one electrically and thermally conductive collector bridge, being a wool mesh or compression and contact sponge cushion, which together with the electrode assembly form a battery cell core, which is packed in a battery cell box, comprising:

• separator between the anode and cathode electrodes;
• the anode and cathode electrodes, with poles and at least one separator, are rolled onto a geometrically shaped central axis to form a wrapped roll;
• the poles at least one end are bent and partially or completely overlap with and through their edges and/or their layers, which form a base;
• electrical and thermal conductor collector bridge made of electrically conductive and thermally conductive material, wool mesh and compression sponge cushion, continuously and/or attached at at least one end to at least one base consisting of poles, bridge that moulds and is in direct contact and pressure or compression, both on the surface of the core base and on the surface of the battery cell terminal or of the inner face of the battery cell box, bridge that enters the villosities of the base surface, increases its contact surface area by pressure or compression, fills the free spaces between the electrode roller and the battery cell box and/or forms a continuous electrothermal chain with its terminal;
• box having a flexible and/or elastic body, located between the ends of the core or between the terminals of the battery cell, such body being airtight with the walls of the box and airtight with the outside of the box, which may be made of electrically insulating material;
• box with internal pressure sensor, internal pressure transmitter, internal pressure transducer, inside the box and/or inside the battery cell, to measure the internal pressure and to detect the gas resulting from the electrochemical reaction of the battery cell electrodes.