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What is the cause of the lithium-powered lithium ion battery cell and module parameters?

  Author :Iflowpower – Portable Power Station Supplier

1) The factor of the lithium-powered lithium ion battery cell parameter is inconsistent with the lithium-powered lithium ion battery electrical core parameters is inconsistent, the longer the difference between the parameters between the lithium power lithium-ion battery cells. The protocol is due to the use of environmental factors in the use of the lithium power lithium ion battery module, resulting in inconsistent lithium-powered lithium ion battery cell parameters to zoom in, resulting in acceleration of certain lithium-powered lithium-ion battery cell performance acceleration Attenuation, ultimately lead to the end of lithium power lithium ion battery module. Factors affecting the inconsistency of the lithium power lithium ion battery cells are: 1) The lithium power lithium ion battery cell is in the manufacturing process, due to the manufacturing process processing level, the material accuracy, purity instability, resulting in the inconsistency of the final product performance parameters.

Use different batch of positive electrode, negative electrode, and electrolyte, lithium-powered lithium-ion battery cells, generally not mixed. Even in the sorting process, the parameters of the lithium power lithium ion battery cells are very consistent, and it cannot be guaranteed to use a state in which the lithium power lithium-ion battery cell after a period of time will be used, so the current solution is the positive electrode of different batches. , Negative electrode and electrolyte processed lithium-powered lithium ion battery cells mix.

The consistency is more affected by multi-partial parties. 2) Lithium dynamic lithium ion battery cell processing process is more complicated, during the entire processing, the consistency of each process is very important, but the most difficult to ensure consistency is the coating process , The thickness and the average moiety of coating and the material activity are not mechanical means easy to control, which is a desire to cause lithium-powered lithium-ion battery cells. Differences in the manufacturing process can only be compensated in the sorting process.

During the processing of the lithium-powered lithium-ion battery, even if stringent control of ingredients, slurry, coating, cutting, roll compression, just reduce the standard deviation between bulk products, but cannot eliminate inconsistencies. (2) Concentrates that the lithium-powered lithium-ion battery cell leads to a lithium-powered lithium ion battery electrical module parameter, the tight structure comprises a positive electrode, a positive electrode fluid, an anode, a negative electrode fluid, a diaphragm, and an electrolyte. The performance of the lithium-duty lithium-ion battery cells is inconsistent, and the root cause will eventually dig up to these components.

The inconsistency of the lithium-powered lithium-ion battery cell will inevitably be transmitted to a lithium-powered lithium-ion battery module, and the desirence of the lithium power lithium ion battery cell sorting will be reflected on the lithium-powered lithium ion battery module after molding. The monomer lithium-powered lithium ion battery cell is welded, clamping, string parallel, coupled together to constitute a lithium power lithium ion battery module. The process in this process is inconsistent, it will inevitably lead to inconsistencies between lithium-powered lithium-ion battery modules and modules, the most intuitive characterization is the internal resistance of the lithium power lithium-ion battery module.

1) During the lithium-lithium-ion battery module, the welding process is not consistent to the difference in welding resistance. The magnitude of the lithium-powered lithium-ion battery cell internal resistance is a few or more millis, and there is a slight inconsistency of welding resistance in the welding process. It is unacceptable to the lithium-powered lithium-ion battery module.

2) The copper row or high voltage wire connected between the lithium-powered lithium ion battery module, the module, its own size, connection method, and surface resolution also affect the consistency of the lithium power lithium ion battery module, Tight-in-life in the lithium-duty lithium-ion battery module. 3) The effect of lithium power lithium-ion battery modules in different connection (screw connection, crimping or welding,), in use, is also different in use of lithium dynamic lithium ion battery modules. In addition to considering processability, considering the impact of connection resistance.

Adopt welding connection points, if the surface solves are not done well, oxidation corrosion occurs, the resistance will naturally increase. Without rust, the resistance will be different from the rust of solder joints. (3) A factor that causes lithium-powered lithium-ion battery electrical modules to use influencing parameters, after the lithium-powered lithium-ion battery module is put into use, the lithium-powered lithium-ion battery module is used in each monomer lithium power lithium ion battery electrical core parameter Effect of electrolyte density, temperature and ventilation conditions, self-discharge level and charge and discharge process.

Due to the lithium-powered lithium ion battery cells in the lithium power lithium ion battery module, the lithium power lithium ion battery cells wrapped in the center of the lithium power lithium ion battery module are in the center of lithium power lithium ion battery. Ion battery module The outermost monomer lithium power lithium ion battery cell, the heat dissipation conditions are very different. The temperature conditions of different monomer lithium power lithium ion battery cells are different prior to reaching thermal balance.

1) If the lithium-powered lithium ion battery pack is installed in different locations, the impact of the consistency of lithium dynamic lithium ion battery modules due to its environmental temperature is different. Due to the different levels of external environment, the distance heat source conditions can cause differences in temperature conditions of lithium-powered lithium-ion battery modules in lithium-dynamic lithium-ion battery packs. 2) The lithium-powered lithium-ion battery cell phase is different from the position of the current copper row, which will cause the heat dissipation conditions between each other, resulting in an inconsistencies of the thermal ambient temperature of the lithium-powered lithium-ion battery cell.

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