Enhanced positive plate of power lead-acid storage battery

Abstract

The invention discloses an enhanced positive plate of a power lead-acid storage battery. The positive plate comprises a positive plate grid. The positive plate is characterized in that a carbon fiber powder layer is sprayed and pressed on the active substance surface of the positive plate; since the positive plate of the battery is formed by spraying and pressing a carbon fiber powder layer on the active substance of the positive pole, the carbon fiber powder has higher specific strength and specific modulus, and each constituent of the carbon fiber dose not participate in the electrochemical reaction of the battery in the charging or discharging process of the battery, the positive plate has higher strength, high and strong carrying capacity and stronger creep deformation resistance, thus the structure strength and the size stability of the positive plate can be improved greatly, the active substance of the positive pole is not easy to soften and fall off, and the service life of the lead-acid storage battery can be prolonged consequentially.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to an enhanced power lead-acid battery positive plate. Background technique [0002] Energy is the basis for the development of modern society and the necessity for modern people to survive. Today, as people pay more and more attention to environmental protection and green energy, electric vehicles, which are light, fast, pollution-free and low-cost vehicles, have become more and more popular. The equipment that provides electric energy to the electric vehicle is the battery, that is, the battery is the energy source of the electric vehicle. At present, the batteries used in electric vehicles are mostly lead-acid batteries (accounting for more than 95% of the market share), because lead-acid batteries have many advantages such as abundant resources, low price and good safety performance. [0003] However, compared with battery systems such as nickel-metal hydride batteries or li...

AI Technical Summary

Problems solved by technology

However, when the grid deforms and grows, the volume of the entire positive electrode will also increase, and the positive electrode will expand, and PbSO 4 will be converted into PbO 2 when the battery is charged, so that the porosity increases with the As the number of cycles increases, the positive electrode swells severely, the porosity increases excessively, the binding force between the active material particles decreases, the electrical contact is destroyed, and the battery fails.

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