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20
2024
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02
Common battery additives and their role
The positive electrode then expands severely, the porosity increases excessively, and the bonding force between the particles decreases, leading to the shedding of the active substance.
The positive electrode then expands severely, the porosity increases excessively, and the bonding force between the particles decreases, leading to the shedding of the active substance. Type of additivesType of additivesRole of additivesRole of additivesBinder is used to increase the mechanical strength of the active substance or the pole plate (between the active substance and the active substance, and between the active substance and the plate grid)Conducting agent is used to improve the electrical conductivity of the active substanceCrystallizing agent is used to regulate the content of -PbO2 and -PbO2 in the active substanceConcentrating agent is used to act as a crystallization nucleus of the discharge product PbSO4, and to improve the crystallization of the active substance. Structure
Expansion agent is used to inhibit the shrinkage of active substances Anti-corrosion agent is used to inhibit the corrosion of the positive electrode plate and the shedding of active substances Antioxidant is used to inhibit the oxidation of the active substances of the negative electrode plate Type of additive Type of additive additive additive additive positive electrode additive reddish dan, fiber, acetylene black, polytetrafluoroethylene Negative electrode additive fiber, acetylene black, humic acid, BaSO4, lignin, 1-2 acid, with AGM, electrolyte Flow is restricted, especially suitable for lead paste plus reddish Dan to facilitate the chemical formation. Some foreign researchers pointed out that VRLA, such as the use of red Dan, is conducive to capacity improvement. Battery special polyester staple fiber itself contains moisture, in the process of use if not used up, please tie the bag tightly to prevent it from drying, static electricity leads to fiber agglomeration is not easy to use non-combustible and other characteristics. n binder. n additive amount is generally: 0.040.08% and finally add the acid. n the biggest benefit of pre-mixing is uniformity, to reduce the unevenness of the factor between the pole plate. n to the increase in the volume of each small compartment, combined with the The pulsation of the volume of the active substance, so that the void ratio of the active substance increases with the increase of the cycle, the positive pole is then severely swollen, the porosity increases excessively, and the bonding between the particles decreases, resulting in the active substance of the
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2024-02-20
2024-02-20
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