Positive lead paste of lead-acid storage battery

A lead-acid battery, positive lead paste technology, applied in battery electrodes, circuits, electrical components and other directions, can solve problems such as performance needs to be improved

Inactive Publication Date: 2013-07-10
CHAOWEI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It adds anisotropic graphite, bismuth oxide and other positive electrode active materials to prolong the cycle life of the battery, but its performance still needs to be improved

Method used

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  • Positive lead paste of lead-acid storage battery
  • Positive lead paste of lead-acid storage battery

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Embodiment Construction

[0010] Lead-acid storage battery positive electrode lead paste of the present invention is made up of the raw material of following mass fraction: 1.4g / cm 3 Sulfuric acid 6.8-10%, deionized water 9-11%, red lead 5-16%, short fiber 0.05-0.06%, carbon fiber 0.10-0.15%, silicon dioxide 0.1%-0.3%, anisotropic graphite 0.1-0.4 %, stannous sulfate 0.05-0.28%, and the rest is lead powder. Wherein, the conductivity of the deionized water is less than or equal to 2 μs / cm. The silica is fumed silica with a specific surface area ≥ 200m 2 / g. Described red lead is the powder that passes 60 mesh sieves.

[0011] A conventional 12V12AH battery is used as a sample battery, and the traditional formula and the formula of the present invention are used for test comparison. After the battery is manufactured, test the initial capacity, weight specific energy and cycle life of 1C and 3C according to the national standard for technical conditions of small valve-regulated sealed lead-acid batter...

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Abstract

The invention discloses a positive lead paste of a lead-acid storage battery. The positive lead paste is composed of the following raw materials by mass percent: 6.8-10% of 1.4 g / cm<3> sulfuric acid, 9-11% of de-ionized water, 5-16% of red lead, 0.05-0.06% of short fiber, 0.10-015% of carbon fibers, 0.1-0.3% of silicon dioxide, 0.1-0.4% of anisotropic graphite, 0.05-0.28% of stannous sulfate and the balance of lead powder. The positive lead paste of the lead-acid storage battery is characterized in that various positive active materials such as anisotropic graphite, stannous sulfate, silicon dioxide and red lead are added on the basis of a certain content of water and acids in the positive lead paste material so that the porosity of the positive plate is improved and the early-stage capacity and the vimetric specific energy of the lead-acid storage battery are enhanced; and as a result, the formation efficiency of batteries is improved.

Description

technical field [0001] The invention relates to the field of lead-acid batteries, in particular to a positive lead paste for lead-acid batteries. Background technique [0002] The utilization rate of the active material of the lead-acid battery is relatively low, especially the utilization rate of the active material of the positive plate is low. The main reason for the termination of the normal life of the battery is the softening and falling off of the positive and active materials, that is, the cycle life of the battery is usually mainly limited by the positive electrode. Manufacturers generally adopt the method of delaying the softening and falling off of the positive active material by increasing the apparent density of the lead paste, thereby improving the life of the positive electrode and prolonging the life of the positive electrode. Lead-acid battery life. As the apparent density of the positive electrode paste increases, the porosity of the active material will d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/57H01M4/62
CPCY02E60/10
Inventor 周明明杜恩生
Owner CHAOWEI POWER CO LTD
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