Battery formation conductive structure

Abstract

The invention relates to the technical field of lithium battery formation, and discloses a battery formation conductive structure which comprises a lithium battery formation device. The lithium battery formation device comprises a lithium battery containing base, an equipment rack is arranged above the lithium battery containing base, a formation conductive equipment group is fixedly mounted at the bottom of the equipment rack, a lithium battery is placed in the lithium battery containing base, the bottom of the formation conductive equipment set makes contact with the top of a lithium battery, an air cylinder is fixedly installed in the middle of the top of the equipment rack, and the formation conductive equipment set is composed of a plurality of formation conductive mechanisms. According to the battery formation conductive structure, the contact between the battery and a copper bar is accurately regulated and controlled by adopting a stroke-adjustable air cylinder, the contact rateof the battery and the copper bar is greatly improved, the percent of pass of equipment is also improved, and when the type of the battery is changed, the formation can be carried out only by adjusting the stroke of the air cylinder to a proper position, the equipment can meet the formation requirements of various types of batteries, and the performance of the equipment is improved.

Description

technical field [0001] The invention relates to the technical field of lithium battery formation, in particular to a battery formation conductive structure. Background technique [0002] At present, in the lithium battery industry, various manufacturers have strict requirements on the formation process in order to improve battery performance and production efficiency. The chemical synthesis technology currently on the market has the following problems: [0003] 1. Before the formation, manually place the battery on the fixture with the silicone pad, then place the fixture with the battery on the formation station of the formation machine, and use the elasticity of the silicone pad during the process of pressing down on the copper strip Deformation is unilaterally (bottom) compensated for cells of different heights. This kind of bottom side compensation is not enough to make good contact between all batteries and copper strips, and problems such as leakage and low voltage w...

AI Technical Summary

Problems solved by technology

This kind of bottom side compensation is not enough to make all the batteries in good contact with the copper bars, and there will still be problems such as leakage and low voltage, which will reduce the pass rate of the battery formation

Moreover, the silicone pad at the bottom of the fixture will be damaged and deformed after long-term use, resulting in a gradual decrease in the compensation effect or even failure

However, when the silicone pad is replaced due to damage, it is necessary to disassemble the battery fixture and take out the silicone pad, which greatly occupies manpower and production resources and affects production efficiency.

[0004] 2. Contacting the copper strip during formation will cause oxidation due to conductivity, which will reduce the conductivity of the copper strip, resulting in a long charging time and a reduced pass rate

The fixed-stroke cylinder cannot be adjusted according to the actual battery position. In actual production, there will be problems such as short circuit caused by excessive down-pressing or poor contact due to insufficient down-pressing

And the fixed-stroke cylinder can only be used for one type of battery. When the height of the battery changes, the cylinder or structure needs to be replaced before it can be used normally, which has too many limitations.

Images