The influence of temperature on battery performance

The influence of 　　 temperature on battery performance

　　 The battery has high sulfuric acid electrolyte temperature, high capacity output, low electrolyte temperature, and low capacity output. The reason is that, in addition to lower temperatures, when the temperature decreases, the solubility of lead sulfate in the sulfuric acid electrolyte will also decrease, which will inevitably saturate the lead ions around the electrode plates. The resulting lead sulfate crystals are crystallized compactly, which prevents the active material from completely contacting the sulfuric acid electrolyte, thereby reducing the capacity output of the battery.

　　During the discharge process, if the electrolyte temperature is high, the supersaturation of PbSO_4 on the electrode plate surface in the sulfuric acid electrolyte will be reduced, which is conducive to the formation of loose crystals of lead sulfate and It forms a thick and strong PbO 2 layer during charging. Thereby prolonging the service life of the active material of the plate. When the battery is charged, the electrolyte temperature is too high, which will accelerate the diffusion of the electrolyte, aggravate the corrosion of the grid, and shorten the service life of the battery.

　　 Practice shows:

　　 The main results are as follows: (1) The corrosion of the electrode plate and the lead alloy grid varies with the electrolyte temperature The rise and increase.

　　 (2) In the battery, the corrosion of the lead alloy grid of the positive electrode is greater than that of the negative electrode.

　　Contact information: 0769-82771986 18038382979