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Lead-acid storage battery negative electrode lead paste and preparation method thereof

A technology of lead-acid battery and negative electrode paste, applied in lead-acid battery, battery electrodes, circuits, etc., can solve problems such as unsatisfactory effects, achieve the effects of improving oxygen cycle efficiency, operating specifications, and ensuring product quality

Inactive Publication Date: 2014-11-26
SHUANGDENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, graphitized carbon, expanded carbon, Al 2 o 3 、TiO 2 A variety of negative electrode additives are used to alleviate the accumulation of sulfate in the negative electrode, but the effect is not ideal

Method used

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  • Lead-acid storage battery negative electrode lead paste and preparation method thereof
  • Lead-acid storage battery negative electrode lead paste and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Below by embodiment the present invention will be further described.

[0018] In Examples 1, 2 and 3, activated carbon black and fumed silica were added to the negative electrode paste for the test battery.

[0019] Table 1:

[0020]

[0021] In the table, the specific surface areas of activated carbon black and fumed silica are 600m 2 / g and 200m 2 / g.

[0022] The preparation method operation steps of above-mentioned negative pole lead paste are:

[0023] 1. Prepare materials: according to the mass ratio of each component in Table 1, weigh the materials and set aside;

[0024] 2. Premixing: add activated carbon black, fumed silica, barium sulfate, short fiber, lignin, humic acid and premix in the paste machine;

[0025] 3. Dry mixing: add lead powder after premixing, turn on the cooling system, and dry mix;

[0026] 4. Wet mixing: add deionized water after dry mixing, wet mixing;

[0027] 5. Acid mixing: add sulfuric acid after wet mixing, and control the t...

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Abstract

The invention discloses a lead-acid storage battery negative electrode lead paste and a preparation method thereof, and the improvement lies in that activated carbon black and fumed silica are added in the negative electrode lead paste, components have a scientific and reasonable proportion, and the preparation method has operation steps and process parameters more normative and perfect. A lead-acid storage battery prepared from the negative electrode lead paste prepared by the method has higher utilization rate of active substances and higher induction current efficiency, and the number of the charge / discharge cycles in a partial charge state is more than 600 times and is significantly superior to that of conventional batteries.

Description

technical field [0001] The invention relates to a negative electrode paste of a lead-acid storage battery and a preparation method thereof, belonging to the technical field of production of lead-acid storage batteries. Background technique [0002] The increasingly severe environmental problems have attracted the attention of the new energy industry, and mild hybrid vehicles with functions of start-stop, acceleration, and brake recovery have gained global attention and development. This has strict requirements on the charge acceptance and life of the battery, which is the core device of energy storage and conversion, in a partially charged state. During the discharge stage of the lead-acid battery, the lead dioxide semiconductor of the positive electrode and the metal lead of the negative electrode react with sulfuric acid to form non-conductive lead sulfate, and there is a certain volume expansion of the positive and negative electrodes during the transformation process. D...

Claims

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Application Information

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IPC IPC(8): H01M4/56H01M4/62
CPCH01M4/57H01M4/625H01M4/628H01M10/06Y02E60/10
Inventor 熊斌吴宏亮
Owner SHUANGDENG GRP
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