Author ：Iflowpower – Portable Power Station Supplier
I. Excessive charging of the lithium-ion battery drum can result in all the lithium atoms in the positive electrode material to run to the negative electrode material, resulting in a collapse of the positive polarized grid, which is also a decrease in lithium iron phosphate ion battery pack. important reason.
In this process, the lithium ions of the negative electrode are increasing, and over-accumulation makes the lithium atoms long out of the stump crystallization, so that the lithium ion battery pack is bulging. Second. The translating drum bag is in the first charge and discharge process of the liquid lithium ion battery, and the electrode material is reacted on the solid-liquid phase interface to form a passivation layer covering the surface of the electrode material.
The formed passivation layer film can effectively prevent the passage of the electrolyte molecule, but Li + can be freely embedded and discharged through the passivation layer, and has the characteristics of solid electrolyte, so this layer of passivation film is called SI. The SEI film is not a constant, there will be a little change during the charge and discharge process, it is important that some organic matter will reversible changes. After excessive discharge of the lithium phosphate ion battery pack, the SEI membrane causes reversible breaking rings, and protects the adhesive material to the negative electrode material, thereby forming a bulk phenomenon.
Three. The lithium-ion battery drum bag may be the problem of lithium iron ion battery pack manufacturing level, the electrode coating is uneven, and the production process is relatively rough. IV.
The phenomenon of lithium iron phosphate ion battery pack does not have to happen, since the air is electrically conductive, and therefore, the time is too long, which is equivalent to direct contact with the positive and negative electrode of the battery, and chronic Short circuit. How to solve the processing?. Try not to rely on some methods to teach online, continue to use the battery.
2, usually, don't play mobile phones, charge. Regularly adhere to the situation of the battery to avoid dangerous situations. 3, usually, when charging, pay attention to the choice of charger, for example, the rated charging voltage of the battery is 3.
7V, limit voltage 4.2V, try to exceed this voltage, can keep constant currents best. 4.
Select the lithium iron phosphate ion battery pack produced by the manufacturer, which is relatively reliable in terms of quality. Important, or usually, your usage habits, the degree of damage to the battery, you should pay more attention. 5.
If the mobile phone battery has been charged, it is to find the void of the battery with your fingers. The air runs out. 6, if you have a lot of fast lithium phosphate ion battery packs, it should be the cutoff voltage of the charger you use and the battery does not match, recommended replacement.
During the first charge and discharge of the liquid lithium-ion battery, the electrode material is reacted on the solid-liquid phase interface, forming a passivation layer covering the surface of the electrode material. The formed passivation layer film can effectively prevent the passage of the electrolyte molecule, but Li + can be freely embedded and disengaged by the passivation layer, and has the characteristics of the solid electrolyte, so this layer of passivation film is referred to as a solid electrolyte interface mask. (SolideElectrolyteinterface), referred to as SEI.
The SEI film will protect the negative electrode material, so that the material structure is not easy to collapse, and the cycle life of the electrode material can be added. The SEI film is not a constant, there will be a little change during the charge and discharge process, it is important that some organic matter will reversible changes. After the battery is excessively discharged, the SEI film occurs reversible to break the ring, and the SEI destruction of the negative electrode material makes the negative electrode material collapse, thereby forming a bulk phenomenon.
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