What is the cause of short life of lead-acid battery life?

　　Author ：Iflowpower – Portable Power Station Supplier

Although the lead-acid battery has great improvements in structural design and use of raw materials, the performance has a considerable improvement, many design and material-free maintenance-free lead-acid battery floating charges are 15 ~ More than 20 years, but the battery that really can reach such a life is probably less. 1) The design of the charging equipment is not perfect, it is not convenient to use. 2) If the battery is discharged, it will not be supplemented in time, especially the over-discharge to cause fatal injuries.

3) The quality of the products of a few manufacturers is poor, and they are filled with times. Battery charging technology requires manufacturers to ensure that the technical indicators of the service life are given at ambient temperature of 25 ¡ã C. Since the monomer lead-acid battery voltage has a temperature dropped by about 4 mV per increase in 1 ¡ã C, a 12V battery consisting of six monomer batteries, the floating charge voltage at 25 ¡ã C is 13.

5V; when the ambient temperature is reduced to 0 At ¡ã C, the floating charge should be 14.1V; when the ambient temperature rises to 40 ¡ã C, the floating charge should be 13.14V.

At the same time, the lead-acid battery has a characteristic that when the ambient temperature is constant, the charge voltage is 100mV high, and the charging current will increase several times, so the thermal out of control of the battery will result in the heat loss of the battery and overcharge damage. When the charging voltage is 100mV with a low voltage, it will cause the battery to charge the battery, and the battery is damaged. In addition, the capacity of the lead-acid battery is also related to the temperature, about 1 ¡ã C, which will drop by 1 ¡ã C, and the manufacturer requires the manufacturer to discharge ranging from 50% of the rated capacity in the summer battery, after the winter releases 25%.

Should be charged in time. Obviously, the lead-acid battery in daily use is not possible in a 12 ¡ã C environment for a long time, and there is a temperature difference in temperature difference in the day, and not to mention in spring, summer, autumn, and winter. Temperature difference, therefore there are currently various thyristor rectification, transformer buck rectification, and general switching regulated power supply type lead-acid battery charger, which is a constant voltage or constant current type lead-acid battery charger.

The strict technical requirements that cannot meet the lead-acid battery supplement charge. Throughout these methods of charging of lead-acid batteries, as well as lead-acid battery chargers developed according to these methods, we are not difficult to see that the technology is not perfect, and the lead-acid battery is charged with these products. Affect the life of the lead-acid battery, while these chargers have problems with narrow operating voltage, large volume, low efficiency, safety factor.

The natural balance charger is for the prevalence of the above lead-acid battery charging, Changsha Yuxi Electronics Co., Ltd. has a long-term study of lead-acid battery charger for a long time, with its own unique method and clever design to produce new charging.

Series products, solve complex technical problems in lead-acid batteries, proven through many years of experiment, greatly increased the life of lead-acid batteries. (This technology has been applied for patent) natural balance method for battery charging? There are two power supplies EA, EB. When the power source EA is in the same ambient temperature, the positive electrode and the positive electrode are connected, the negative electrode is connected to the negative electrode, Among them, there is a relationship that there is a relationship.

If EA is higher, EB will supply EA-EB to EB =δE of the voltage, willδE size, supply oneδi current to the power supply EB flow and perfuse, when EB absorbs EA supplyδI current, so that EB rises to EB (in the battery, the battery-end voltage increases and the amount of charge storage amount), the power source EA will stop supply current to the power supply EB, which is EA = EB,δE = 0,δi = 0. In the above description, we replace EB to be charged, calculated on a voltage corresponding to the battery at different discharge depths and ambient temperatures. The EA is carefully designed to different ambient temperatures, and the power supply of the output voltage and current can be automatically adjusted according to the battery charging balance.

In the case of fully idealization, the power supply EA can charge the battery according to the battery, and the battery can be charged according to the battery, and the battery is fully charged.δE = 0,δi = 0, the EA power will no longer consume power. Since then, EA only changes with the ambient temperature, and the charging battery supply tracking balance compensation, because the entire process of charging battery is completely automated, so we call it natural balance Law.

This method is completely idealized: the battery is different after the battery is charged, and the voltage difference between the EA and the charging battery EB is different.δE = 0, natureδi = 0, since the EA has no power supply battery (EB), the battery electrolyte can not be boiling, and it is impossible to decompose water in the electrolyte in the battery, more impossible to increase the pressure and temperature in the battery, appearing Security risks. Therefore, the method is supplied to the battery that does not allow the battery to overcharge, nor will it make the battery charge, but more convenient, safer, more reliable.

From the above analysis, we are not difficult to see that this method is especially suitable for maintenance-free and less maintenance of lead-acid battery, which can adapt to the daily maintenance of the battery for intermittent discharge, which is conducive to improving the daily use of the battery. Reliability, improve the service life of the battery. Second, analysis from the perspective of material learning.

As of now, only Toyota has discovered a solid material, which is completely different from the ferrite material used in the lithium ion battery, which can reduce the battery of the lithium-ion battery, which can be reduced by 70. % Heat. However, even if there are so many feeding, Toyota can't declare that no battery cooling system is no longer.

In addition, in addition to this solid material, there is no information that has been proved to have a material that is not fever to complete the charge and discharge. So from this angle, I am afraid it is also difficult to achieve the battery cooling.