Active cathode material for uninterruptible power supply and preparation method thereof

Abstract

The invention discloses an active cathode material for an uninterruptible power supply and a preparation method thereof. The active cathode material comprises the following raw materials in parts by weight: 20-30 parts of free lead, 30-50 parts of lead oxide, 20-35 parts of lead dioxide, 5-15 parts of aluminium oxide, 0.2-0.8 part of polypropylene fibers, 0.5-2.5 parts of glass fibers, 1-3 parts of antimonous oxide, 5-15 parts of sulfuric acid, 5-10 parts of a perfluor solvent and 10-26 parts of deionized water. The preparation method comprises the steps of ball milling, preparation of a precursor mixture and heat treatment. The active cathode material is high in capacity and long in cycle life, the energy density of the conventional uninterruptible power supply is improved, the high-temperature performance and the rate capability of the active cathode material are improved, a precursor synthetic method is simple, industrialization is easy, the cost of the cathode material of an uninterruptible power cell is reduced, and a very high popularization value is achieved.

Description

technical field [0001] The invention relates to the field of battery materials, in particular to a positive electrode active material for an uninterruptible power supply and a preparation method thereof. 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 ca...

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.