High-temperature valve control lead-acid storage battery and preparation method thereof

Abstract

The invention belongs to the technical field of a lead storage battery, and particularly relates to a high-temperature valve control lead-acid storage battery and a preparation method thereof. In the high-temperature valve control lead-acid storage battery, metal elements La, Ce and Ag are added into high-tin alloy of a positive grid, 4BS, Bi2O3, Co3O4, Lu2O3 and Na2SO4 are added into a positive active substance, 2-naphthalenesulfonate, cabot carbon black and Beta-naphthol are added into a negative active substance, and tin sulfate and ammonium sulfate are added into an electrolyte. By the high-temperature valve control lead-acid storage battery, the corrosion resistance of the positive grid under a high-temperature environment is improved, the age hardening speed of the grid is reduced, the strength of the positive active substance is improved, the contraction of a negative electrode is reduced, the conductivity of the active substances is improved, the charging efficiency is improved, so that the service lifetime of the battery under an environment of 50-70 DEG C is prolonged than that of an existing battery by about 1.5 times; and the preparation method is scientific, reasonable, simple and practical.

Description

technical field [0001] The invention belongs to the technical field of lead storage batteries, and in particular relates to a high-temperature valve-regulated lead-acid storage battery and a preparation method thereof. Background technique [0002] With the rapid development of communication, there are more than 1.2 million communication base stations in my country, and the energy consumption of air conditioners in the energy consumption of base stations accounts for 50%. Every 10°C increase in the temperature of the battery can reduce the power consumption of air conditioners by more than 60%. , how to reduce air conditioning energy consumption? The key depends on the high temperature resistance of the battery. For batteries used under normal temperature conditions, due to the increase in ambient temperature, the oxygen evolution of the positive electrode will be accelerated, causing the oxygen recombination of the negative electrode to intensify. At the same time, the negat...

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Problems solved by technology

[0002] With the rapid development of communication, there are more than 1.2 million communication base stations in my country, and the energy consumption of air conditioners in the energy consumption of base stations accounts for 50%. Every 10°C increase in the temperature of the battery can reduce the power consumption of air conditioners by more than 60%. , how to reduce air conditioning energy consumption? The key depends on the high temperature resistance of the battery. For batteries used under normal temperature conditions, due to the increase in ambient temperature, the oxygen evolution of the positive electrode will be accelerated, causing the oxygen recombination of the negative electrode to intensify. At the same time, the negative electrode is oxidized to make it long-term undercharged , to accelerate the sulfation of the negative electrode, while the positive electrode is in an overcharged state, resulting in accelerated corrosion of the positive electrode and premature failure of the active material. Therefore, it is necessary to develop a new type of high temperature resistant valve-regulated lead-acid battery for the above reasons of battery failure due to high temperature.

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