Due to the differences in the types of plates, manufacturing conditions and use methods, the reasons for the failure of batteries are different. To sum up, the failure of lead-acid batteries has the following situations: 1. Corrosion variant of positive plate There are three types of alloys currently used in production: traditional lead-antimony alloys, with an antimony content of 4% to 7% by mass; low antimony or ultra-low antimony alloys, with an antimony content of 2% by mass or less than 1% by mass Fraction, containing tin, copper, cadmium, sulfur and other modified crystal agents; lead-calcium series, actually lead-calcium-tin-aluminum quaternary alloy, the content of calcium is 0.06% to 0.1% mass fraction. The positive grids cast from the above alloys will be oxidized into lead sulfate and lead dioxide during the charging process of the battery, which will eventually lead to the loss of the function of supporting active substances and the battery failure; or due to the formation of lead dioxide corrosion layer, lead to lead dioxide. The alloy produces stress, which causes the grid to grow and deform. When the deformation exceeds 4%, the entire plate will be destroyed, and the active material will fall off due to poor contact with the grid, or short-circuit at the bus bar.

The battery memory effect refers to the reversible failure of the battery, that is, the performance that can be restored after the battery fails. The battery automatically maintains this specific tendency after being subjected to a specific duty cycle for a long time. In layman's terms, the battery remembers the node of the last charge and discharge, resulting in the failure to break through this node in the future, resulting in a reduction in battery capacity.

The charging control methods of lead-acid batteries and lithium battery chargers are different. The difference is that the materials used are different, and the principle of discharge is also different. The quality of charging and discharging of batteries and lithium batteries will directly affect the electrical performance and service life of the batteries.

When it comes to batteries, we have to say the car start-stop system. That is, when the vehicle is temporarily stopped (such as waiting for a red light) during the driving process, it will automatically turn off. A system that automatically restarts the engine when it's time to move on.

The difficulty of sealing lead-acid batteries is the electrolysis of water during charging. When the charging reaches a certain voltage (generally above 2.30V/cell), oxygen is released on the positive electrode of the battery, and hydrogen is released on the negative electrode. On the one hand, the released gas brings out the acid mist to pollute the environment, on the other hand, the water content in the electrolyte decreases, so it is necessary to add water for maintenance at intervals.

In the traditional flooded lead-acid battery, the separator only acts as an inert spacer to prevent the short circuit of the positive and negative electrodes. It needs to have good ionic conductivity, the manufacturing method is matched with the production process, the physical and chemical properties have long-term stability, etc.

Formation, which means conversion, is the process in which the cured green plate is converted into a cooked plate under the action of electric energy.

The working principle of VRLAB can be summarized as follows: ·The positive electrode plate undergoes water decomposition reaction, which causes O2 precipitation and generates H+ ions. ·O2 and H+ ions diffuse to the negative electrode plate through the gas channel and the liquid channel in the separator. ·After reaching the negative electrode plate, oxygen reacts with H+ ions to generate water. ·The generated water is diffused to the positive electrode plate through the separator, so that the water electrolyzed by the positive electrode plate is recovered. The above reaction forms the so-called closed oxygen cycle (COC). The closed oxygen cycle significantly reduces the battery's water loss during charging and overcharging, making it maintenance-free.

Pb-Ca-Sn alloy grids are used in lead-acid batteries, and hydrogen evolution inhibitors are added to the negative plates. The wet charging technology is widely used in the battery industry. After limiting the charging voltage, these batteries can be considered maintenance-free. However, their service life is very dependent on the charging conditions that need to be strictly observed, in particular the limitation of the maximum charging voltage. Battery engineers and producers are looking for ways to recycle into water the H2 and O2 released during battery charging and overcharging. In this way, the problem of water loss can be solved.

For flooded batteries, the basic function of micro-porous separator is to isolate the plates with opposite polarity, avoid electrical contact between them, and ensure high ionic conductivity at the same time, allowing ions to move freely between the plates.

Gauntlets are the most important parts of the tubular battery, which ensure good contact between the Positive Active Material and the positive plate spines, better containing any shedding of this material during charge and discharge phases, and allowing for easier production of these plates at the same time. Our gauntlets are particularly suitable for all types of filling.