Lithium battery plate extrusion equipment

At this time, the positive electrode active material is subject to the impact of the gas, and this impact will promote the fall of the active material. In addition, the positive electrode grid alloy also Suffering from severe anodic oxidation and corrosion, so the battery will shorten the application period when the battery is overcharged. The depth of discharge, because the positive electrode active material lead dioxide itself is not well integrated with each other, lead sulfate is generated during discharge, and it returns to lead dioxide during charging. If the molar volume of lead sulfate is larger than that of lead oxide, the volume of the active material will expand during discharge. If one mole of lead oxide is converted into one mole of lead sulfate, the volume will increase by 95%. In this way, repeated contraction and expansion will cause the lead dioxide particles to The mutual bonding of the particles gradually relaxes and is easy to fall off. If only 20% of one mole of the active material of lead dioxide is discharged, the degree of shrinkage and expansion will be greatly reduced, and the destruction of the binding force will become slower. Therefore, the deeper the discharge depth, the longer the cycle life Short. The influence of temperature, the life of lead-acid batteries increases with increasing temperature. Between 10 ℃ ~ 35 ℃, each increase of 1 ℃, about 5 ~ 6 cycles, between 35 ℃ ~ 45 ℃, every Increasing 1 ° C can extend the life by more than 25 cycles; above 50 ° C, the life is reduced due to the loss of the negative electrode sulfuration capacity of the separator. Demand is controlled, and some new technologies such as internalization technology are used to produce, and the appearance of pollution usually does not occur. Liu Yanlong, secretary-general of the China Chemical and Physical Power Supply Professional Association, stated that the "access conditions for lead-acid battery occupations" mentioned recovery and regeneration, and the collection of these processes could also

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