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The effect of temperature on the performance of the battery

Return Listsource:Gratene date: 2022-06-17

The effect of temperature on the performance of the batteryIt can be seen from the chemical reaction equation of lead-acid battery, and the positive electrode board is listed on the PBO2, and the negative plate is PB. The conductivity and physical properties of these two substances are extremely small in temperature, and therefore, it can be said that the temperature effect of lead-acid battery discharge performance is caused by sulfuric acid because it only has activation properties (dissociation and ion migration velocity). Related to temperature.
The temperature of the electrolytic solution of the lead storage battery is high, the capacity output is much, the temperature of the electrolyte is low, and the capacity output is small. The cause of this situation is carried out except that due to the decrease in temperature, the solubility of the lead in the electrolytic solution of the sulfate in the electrolyte is also reduced due to the decrease in temperature, which must cause a saturated moon around the plate, forcing the formed sulfuric acid formed. Lead crystallization dense, this dense crystallization hinders the sufficient contact of the active substance to the electrolyte of the sulfuric acid, thereby reducing the capacity output of the lead storage battery.
When the lead battery is discharged, if the electrolytic solution of the sulfuric acid is high, this will reduce the ultrasound degree of the PBSO4 of the plate surface in the sulfuric acid electrolyte, which facilitates the formation of loose sulfate crystals, so that it is large when charging Rugged PBO2 layer, thereby eliminating the life of the polar active substance. When the lead battery is charged, if the temperature of the electrolyte is too high, the diffusion of the electrolyte is accelerated, and the corrosion of the plate grating is exacerbated, thereby reducing the service life of the lead battery.
practice shows that:
(1) When the lead battery is charged, the temperature of the electrolyte and the lead-containing grating increase increases with the temperature rise of the electrolyte.
(2) In the lead battery, the corrosion of the positive plate lead alloy plate grid is larger than the negative electrode. 

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