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A lithium ion battery's function

Views: 205     Author: Hedy     Publish Time: 2023-06-02      Origin: Site


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A lithium ion battery's function

A lithium ion battery's function In a lithium ion battery, diaphragm paper separates the positive and negative materials. The diaphragm paper quality has a direct influence on battery safety and capacity.Traditional polymer diaphragm materials were created via melting extrusion, stretching, thermal setting, and other processes using polyethylene and polypropylene as basic ingredients. The material has improved porosity and tear strength, as well as acid and alkali resistance and flexibility, and its physical and chemical characteristics show no discernible change after hundreds of recycling cycles.

Manufacturer of Power Lithium Batteries

The main physical and chemical indicators of lithium ion battery diaphragm material are: lithium ion battery diaphragm material is mainly used in the isolation between the positive and negative electrodes of lithium ion battery, and when lithium ion battery overcharging, it plays a role in preventing battery short circuit caused by the explosion of overheating self-closing protection, is the key material of lithium ion battery, lithium ion battery diaphragm material main physical.Aperture size: The aperture size of the diaphragm controls the rate of ion transfer between the positive and negative electrodes.Aperture distribution: The size and homogeneity of the aperture distribution in the diaphragm have a major influence on cell performance.Conductivity: The diaphragm should be conductive to provide a balanced charge distribution inside the battery.Mechanical strength: The diaphragm should be strong enough to prevent issues like short circuits and pinholes inside the battery.Chemical stability: The diaphragm should be chemically stable enough to guarantee that the battery does not degrade, dissolve, or experience other phenomena when running for an extended period of time.Polypropylene (PP), polyimide (PI), polyimide (PBI), and other materials are common lithium ion battery diaphragm materials. Polypropylene is the most generally used lithium ion battery separator material, owing to its low cost, strong chemical stability, and other advantages.

The distinction between lithium ion and lithium polymer batteries

The structural properties, appearance, energy density, thickness, and safety performance of lithium ion batteries and lithium polymer batteries differ.

Structural properties differ: a lithium polymer battery can also be referred to as a polymer lithium ion battery, thus we should be clear that a polymer lithium ion battery is a kind of lithium ion battery. In their innards, the two batteries employ different electrolytes. The polymer lithium-ion battery electrolyte is a solid electrolyte that also seems semi-colloidal. In contrast, liquid electrolytes are used in lithium-ion batteries.

The form factor is unique: most mobile power supply on the market use 18650 cylindrical lithium-ion batteries. The majority of lithium-ion polymer batteries are blocky or rectangular in shape. When purchasing a big capacity power bank, polymer lithium batteries are typically used.

The density of energy and the thickness of matter are not the same: In comparison to lithium-ion batteries, polymer lithium-ion batteries based on solids have an ultra-thin form. At this stage of development, polymer lithium-ion batteries can have a minimum thickness of 0.5mm. It is also possible to have an arbitrary form that is more appropriate for the product's area. Improve the battery's form and flexibility significantly. The volume of lithium-ion and lithium-polymer batteries is the same. Polymer lithium-ion batteries, on the other hand, offer a higher energy density and are lighter.The safety performance of polymer lithium batteries is not the same: even if the internal structure of the organic electrolyte is used, it will not readily arise safety hazards, and the worst scenario is merely to generate battery bulge.

We have a number of lithium battery PACK production lines, aging, capacity division and other production equipment and a large number of experienced industrial workers.


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