Cathode active material of lead-acid battery for UPS (Uninterruptible Power Supply)

Abstract

The invention discloses a cathode active material of a lead-acid battery for UPS (Uninterruptible Power Supply), which mainly comprises lead powder, polypropylene fiber, sulfuric acid and deionized water. The cathode active material has the improvement that the lead powder is a mixture of free lead, lead oxide and lead dioxide, and the concentration of the sulfuric acid is 1.25-1.30 g / ml; diantimony trioxide and carbon fiber are added into the material; all components are mixed according to reasonable and standard content ranges to obtain sticky lead plaster, and the apparent density is 4.10-4.45 g / cm<3>. The active material has great bonding force, high utilization ratio and good electrical conductivity; when used for manufacturing lead-acid batteries for UPS, the active material can obviously increase the charge acceptance, the high-current starting discharge performance and the deep cycle life of the batteries.

Description

technical field [0001] The invention relates to a lead-acid accumulator plate coating, in particular to a lead-acid accumulator cathode active material for UPS uninterruptible power supply. Background technique [0002] With the development of science and technology, information technology plays an increasingly important role in human society, especially in the military and communication fields. In information technology, UPS uninterruptible power supply is widely used, and lead-acid battery for UPS uninterruptible power supply needs to have high current starting discharge and deep cycle discharge performance, which puts forward higher requirements for the positive electrode active material of the battery. The existing active materials of this kind are mainly composed of lead powder, polypropylene fiber, sulfuric acid, and deionized water. , The utilization rate is not high, and the conductivity is poor, which leads to the unsatisfactory charging acceptance capacity, high-c...

AI Technical Summary

Problems solved by technology

The existing active materials of this kind are mainly composed of lead powder, polypropylene fiber, sulfuric acid, and deionized water. , The utilization rate is not high, and the conductivity is poor, which leads to the unsatisfactory charging acceptance capacity, high-current starting and discharging performance and deep cycle life of the manufactured battery, which cannot meet the requirements of high-power and large-capacity UPS uninterruptible power supply.