Analyze the rated voltage of the electric sweeper battery

Rated voltage of electric sweeper battery Now let's talk about the rated voltage of small electric sweeper or lead-acid battery. Simply put, different metals and conductors have different potential differences in acid. The potential difference between lead sulfate and lead oxide in acid is 2, so the lead-acid battery spacing is 2V. Note: 2V is the nominal voltage of the battery. The actual electromotive force of the battery is related to the battery's positive and negative electrode potential and electrolyte density. The anode of a fully charged lead-acid battery is PbO2, the cathode is Pb, and the electrolyte is -H2SO4 dilute sulfuric acid solution. Because two different substances can show different gains in the electrolyte, there is a tendency for electrons to flow from one substance to another. This trend is the electromotive force of the battery, and its measurement unit VV battery electromotive force can be roughly explained as the open circuit voltage of the battery. This value is only related to certain physical and chemical properties of the material, and has nothing to do with the number, geometry, etc. of the material. So as long as it is a lead-acid battery, its electromotive force (open circuit voltage) is 2V to the right, and we call the nominal voltage of this battery 2V. Regarding lead-acid batteries, in the general range, its terminal voltage can be expressed as: Uu003d0.85+dU: battery open circuit voltage, unit V; D: electrolyte density, g/cm3 electrolyte density is generally around 1.28, so it is 2V The internal structure of the lead-acid battery of the electric sweeper The voltage of the lead-acid battery is 2V/cell, which is connected in series through a bridge. If there are 6 single grids inside the battery, the rated voltage of the battery is 12V. At present, most electric sweeping vehicles use a 12V series battery, three 12V series batteries form a 36V battery, and five 12V series batteries form a 60V battery. The electric sweeper is currently the first low-end pure electric sweeper, or roller brush electric sweeper, on the market. The high-end electric sweeper is also mainly imported. As shown in the figure below, the roller brush cleaner mainly uses lead-acid batteries as the power source. Today I will share with you the battery discharge cycle: brush cleaner, lead-acid battery discharge cycle number of battery discharge cycle life refers to the battery charging and discharging, until the battery capacity is reduced to 70% of the rated capacity The number of cycles, enough electricity is discharged to a certain depth for one cycle. The more battery cycles, the longer the service life. The battery cycle life of the electric sweeper is not less than 350 times, and the battery with less than 350 times is unqualified. Remarks: 1. The electric sweeper here refers to a sweeper powered by lead-acid batteries. 2. The cleaner did not see the requirement for the number of cycles in the standard rules, and 350 times is the industry-related experience value. 3. There are many manufacturers of lead-acid batteries, each with different parameters. Please refer to the manufacturer's parameters carefully. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous article: What are the general requirements for lithium battery customization?