Output structure of lithium battery pack

Abstract

The invention discloses an output structure of a lithium battery pack. The structure includes a plurality of lithium battery electrodes, an insulating plate, a circuit board, a parallel conductor and a connector. The lithium battery electrodes are in structures of thin pieces and the insulating plate is in a structure of a plate body. The insulating plate is provided with inserting slits which penetrate the plate body. The circuit is provided with a copper layer and penetrating inserting slits. The copper layer is used for connecting each lithium battery electrode in the lithium battery pack in series. The parallel conductor is in the structure of a thin piece and is in parallel with the copper layer which connects the lithium battery electrodes in series. The lithium battery electrodes pass through the inserting slits in the insulating plate and the circuit board and are bent for connecting the circuit, the insulating plate and the lithium battery pack together. A bended surface of each electrode, the circuit board, the insulating plate and the connector are provided with screw holes. Bolts pass through the screw holes and fasten and connect each lithium battery electrode, the circuit board, the insulating plate and the connector together. With the bolt connection, heat is not generated during an operation process so that interiors of the batteries are free from being damaged. When the lithium battery pack is used, possibility of heat aggregation due to connections among each lithium batteries is reduced. When a service life of the lithium battery pack is over, the lithium battery pack is convenient to detach and classify.

Description

technical field [0001] The invention relates to a battery pack, in particular to an output structure of a lithium battery pack. Background technique [0002] Lithium batteries need to meet the output voltage or current requirements in the form of battery packs. It is difficult for a single-cell lithium battery to meet the output voltage or current requirements. This requires connecting lithium batteries to form an output structure of a battery pack to provide power to For use with external electrical devices. [0003] The output structure of the existing lithium battery pack includes the output electrode of a single-cell lithium battery, the connector connecting the electrodes of each single-cell lithium battery, and the connector connected to the connector, and the connector is connected to an external electrical device; the existing The disadvantage of the output structure of the battery pack is that the connectors are directly connected to the electrodes of the lithium b...

AI Technical Summary

Problems solved by technology

[0003] The output structure of the existing lithium battery pack includes the output electrode of a single-cell lithium battery, the connector connecting the electrodes of each single-cell lithium battery, and the connector connected to the connector, and the connector is connected to an external electrical device; the existing The disadvantage of the output structure of the battery pack is that the connectors are directly connected to the electrodes of the lithium battery through soldering. The soldering requires high temperature treatment and a long processing time, which is likely to cause damage to the internal structure of the lithium battery. At the same time, the strength of the welded part Poor electrical conductivity reduces the reliability of the connection between the connector and the electrode. Poor electrical conductivity is prone to heat accumulation when the battery outputs a large current, causing the battery temperature to rise rapidly and affecting battery life; in addition, tin used for welding is prone to appear Oxidation and corrosion, once the battery is damaged, it must be repaired or discarded directly

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