12-29
/ 2022
Battery discharge current. Generally speaking, it is the discharge rate. There are time rate and current rate for the discharge current of the battery. Discharge time rate refers to the length of time from discharge to termination voltage under certain discharge conditions. According to IEC standards, the discharge rates are respectively 20 hour rate, 10 hour rate, 5 hour rate, 3 hour rate, 2 hour rate, 1 hour rate, 0.5 hour rate, etc. The rated capacity of the battery is expressed in C. The capacity of the battery obtained at different discharge rates will be different.
12-26
/ 2022
The health state of the battery is expressed by SOH, which is the full name of State of Health. If the battery is regarded as a container for storing electricity, SOC refers to how much available electric energy is stored in the container at a certain time (available electric energy here refers to the electric energy that can be used through discharge), while SOH is generally understood as how much the volume (not physical volume) of the container for storing available electric energy remains, that is, how much available electric energy it can store.
12-22
/ 2022
The electrolyte of valve regulated lead acid battery is in a lean state, that is, most of the electrolyte is adsorbed in the superfine glass fiber membrane, and the rest is absorbed by the electrode plate. In order to ensure that oxygen can diffuse to the negative electrode smoothly, the active substances of the membrane and electrode plate are required not to be saturated by the electrolyte, otherwise it will block the oxygen passage through the membrane, affecting the reduction of oxygen on the negative electrode. In order to make the chemical reaction go on normally, the active substance on the electrode plate must be fully contacted with the electrolyte, while the battery with electrolyte poor structure can only achieve this purpose by tight assembly.
12-19
/ 2022
Under the same specification, the volume of lithium iron phosphate battery is only half of that of lead-acid battery, and the weight is only 35% of that of lead-acid battery. Theoretically, the space is completely enough. However, it is necessary to consider whether it can still be installed in the original position, and whether it protrudes or is squeezed.
12-15
/ 2022
The AGM separator shall be selected based on its own performance. According to the analysis of the function of the separator in the battery, the AGM separator shall have high acid absorption capacity, small shrinkage after acid absorption, reasonable microporous structure and low resistivity. According to the comprehensive performance requirements of the battery, the AGM separator should also have the characteristics of low impurity content, high tensile strength, fast infiltration speed, etc.
12-12
/ 2022
Absorbing glass fiber separator (AGM separator) is an important part of valve regulated lead-acid battery. Its performance and dosage directly affect the technical performance of the battery, especially the service life of the battery.
12-08
/ 2022
The battery separator has a small pore size and high porosity, which is easy to retain the electrolyte, has a good liquid absorption rate and a fast penetration rate, and can effectively enhance the retention of active substances and prolong the battery life. The battery separator can stably supply electrolyte to the pole plate and keep the ion conduction smooth. The strong liquid transfer ability can effectively prevent the phenomenon of acid stratification in the battery. The glass fiber is mainly used, and a certain amount of organic fibers are mixed to enhance the tensile strength of the separator and optimize other performance indicators.
12-05
/ 2022
AGM is an absorbable fiberglass mesh battery. Vehicles equipped with engine start-stop function are mostly equipped with AGM and EFB reinforced maintenance-free lead-acid batteries. Compared with ordinary batteries (traditional lead-acid batteries), AGM batteries have more advanced technology and can better solve the problem of frequent engine starts. stress, and the growing electrical load on vehicle batteries.
12-01
/ 2022
During the use of the battery, the problem of swelling and cracking, or even explosion, may occur, whether it is a new battery or an old battery. The main reasons for battery inflation are as follows:
a) The vent on the tank filler cap is blocked or blocked
During the charging process of the battery, especially at the end of the charging process, a large amount of explosive gas will be generated inside the battery. If the vent on the battery filler cap is blocked or blocked at this time, these gases will not be discharged in time, so they will accumulate in the battery shell, and the pressure will increase, finally the battery will swell.
b) When the charging current of the battery is too high or the charging time is too long, the temperature of the electrolyte will increase rapidly, and a large amount of gas will be generated, which will loosen and fall off the active substances on the battery plate, causing the battery to swell.
11-28
/ 2022
The battery separator is an integral part of the battery. In the valve-regulated lead-acid battery, the battery separator can prevent the active material of the plate from falling off and the deformation of the plate, and prolong the service life of the battery. It is required that the battery separator shrinks less after the sulfuric acid is injected, and the battery separator is also required to be in a higher pressure state when the battery is designed. The resistance formed by the resistance of the battery separator and the contact of the electrode plate is a component of the internal resistance of the battery. The battery separator itself has a low resistivity, and the battery separator is also required to be in a high pressure state during battery design.
11-24
/ 2022
One of the obvious differences between dry cell batteries and wet cell batteries is that the electrolytes of wet cell batteries are liquid, while the electrolytes of dry cell batteries are colloidal or solid. They have different advantages and disadvantages due to different manufacturing materials. So which is better between dry cell batteries and wet cell batteries?
11-21
/ 2022
Generally speaking, the batteries used in automobiles are mainly divided into two types: water-added lead-acid batteries and maintenance-free lead-acid batteries. At present, most models use maintenance-free lead-acid batteries. However, there are also many Japanese cars, including some high-end models, and some use non-maintenance-free lead-acid batteries.