Why is the battery of Danyang sweeper not durable?

Danyang sweepers have entered people's daily lives, and the quality of Danyang sweeper batteries directly affects the working efficiency of our floor washing machines. It has been almost 160 years since Prandtl invented the lead-acid battery. With the continuous optimization of science and technology, it stands to reason that the battery energy density should have reached its limit. So why are the batteries becoming less and less durable?

In fact, the impact of the battery charger on the battery of our Danyang sweeper is very important. An unsuitable or inferior battery charger can easily damage the battery when charging the battery. The main reason is that the current is too large or unstable, lacks current protection, and cannot intelligently cut off the power, resulting in a violent chemical reaction inside the battery, generating a lot of heat, causing our battery to bulge, or even be scrapped. Therefore, when we use the charger, we must use the original matching charger. We cannot use some inferior chargers for cheap. This is not only unsafe, but also damages our Danyang sweeper battery.

Another point is that the cold wave in winter is a little devil. Every time he comes, it will bring endless trouble to everyone. When the cold snap hits, the use of electric products is often not as good as before, and the same is true for Danyang sweepers. At this time, many users will call to inquire. Is the use time of Danyang sweeper shortened because the battery is bad? Or is there something wrong with the quality of the battery?

Danyang sweepers use lithium batteries. The discharge reaction relies on the deintercalation and insertion of lithium ions at the two poles. During this process, the lithium ions have to pass through the electrolyte. Under low temperature conditions, the conduction rate of lithium ions in the electrolyte will slow down, and it will be more difficult to embed into the negative electrode. As a result, the power contained in the battery can only reach 40% of the design value. Therefore, battery failure in winter is a common phenomenon and is not a quality problem.

The general working environment of Danyang sweepers is 10°-35°. If the temperature is lower than this, or even below zero, the power stored in the battery will decrease. The lower the temperature, the more obvious the power drop will be. Put it in a greenhouse for a period of time before each charge. It will improve after the battery warms up before charging again. Furthermore, appropriately increasing the number of charging times can also ensure that daily work is not affected. This phenomenon will recover when the temperature rises. Therefore, the fact that the Danyang sweeper is not durable in winter is not because the battery is broken, and users do not need to worry about this.

In fact, if you think about it, we all know that the same is true for the electric vehicles we use. In winter, less electricity is used, which is actually a normal phenomenon.