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

A positive active material, lead-acid battery technology, applied in lead-acid battery electrodes, battery electrodes, circuits, etc., can solve the problem of poor conductivity, inability to meet the requirements of high-power, large-capacity UPS uninterruptible power supply, active material binding force, The problem of low utilization rate

Active Publication Date: 2012-01-18
SHUANGDENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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Embodiment Construction

[0007] Further illustrate the present invention and its beneficial effect through embodiment below.

[0008] The positive electrode active material component and content of example one, example two are as follows (number in the table is mass percent):

[0009] Free lead % Lead oxide % Lead dioxide % carbon fiber % Antimony trioxide% Polypropylene fiber % Density 1.28g / cm 3 sulfuric acid% Deionized water % example 1 14 38 31 1 2 0.2 5 8.8 Example 2 10 41 29 0.5 1.4 0.1 8 10

[0010] Its preparation method is: mix free lead, lead oxide and lead dioxide into lead powder, then stir and mix with antimony trioxide, carbon fiber and polypropylene fiber in a dry state for 8 minutes, and add it at a constant speed while stirring within 5 minutes. Ionized water, continue to stir for 5 minutes, then add sulfuric acid, add acid for 10 minutes, continue to stir for 10 minutes, and make a lead pa...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/14H01M4/36H01M4/48H01M4/62
CPCY02E60/126Y02E60/10
Inventor 薛奎网
Owner SHUANGDENG GRP
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