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Maintenance-free lead-acid storage battery positive electrode lead paste and preparation method thereof

A lead-acid battery, positive lead paste technology, applied in battery electrodes, circuits, electrical components and other directions, can solve problems such as high cost, highlight price advantages, disadvantages, etc., achieve improved conductivity, good low-temperature starting ability, and improved applicability Effect

Active Publication Date: 2022-02-18
广东奥克莱集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the maintenance-free lead-acid battery occupies an absolute dominant position in the starting battery, and the technology of this type of battery is relatively mature. The conventional means to improve the low-temperature starting ability of the battery are to increase the number of plates assembled, increase the reaction area, or increase the tin alloy of the grid content, the cost of the above method is high, which is not conducive to highlighting the price advantage among similar products

Method used

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  • Maintenance-free lead-acid storage battery positive electrode lead paste and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0042] A maintenance-free lead-acid battery positive electrode paste, comprising: 0.06 parts of short fibers, 0.2 parts of sodium perborate, 2 parts of additives (1.5 parts of modified silicon dioxide, 0.5 parts of graphene), 5 parts of red Dan, 6 parts of sulfuric acid, 10 parts of water, 76.74 parts of lead powder.

[0043] The positive lead paste composed of the above raw materials can significantly improve the low-temperature starting ability, charging acceptance ability and capacity, can be effectively used in cold regions, improves the applicability of lead-acid batteries prepared therefrom, and can effectively shorten the internal formation efficiency.

[0044] The additive is composed of graphene and modified silicon dioxide in a weight ratio of 1:3.

[0045] By taking additives composed of modified silica and graphene and adding them to the positive electrode paste formula, it can effectively increase the porosity of the active material and improve the adhesion and de...

Embodiment 2

[0065] A maintenance-free lead-acid battery positive electrode paste, comprising: 0.1 part of short fiber, 0.1 part of sodium perborate, 1 part of additives (0.2 part of graphene, 0.8 part of modified titanium dioxide), 6 parts of red lead, 5 parts of sulfuric acid, 8 parts of water, 79.8 parts of lead powder.

[0066] The additive is composed of graphene and modified silicon dioxide in a weight ratio of 1:4.

[0067] The preparation method of described modified silica is:

[0068] S1, adding 8 parts by weight of silicon dioxide and 73 parts by weight of lead powder to a high-speed mixer and pre-mixed evenly;

[0069] S2. Add 12 parts by weight of deionized water into a high-speed mixer, mix evenly, then add 7 parts by weight of sulfuric acid, mix evenly at 70°C, and discharge to obtain a paste;

[0070] S3, putting the paste into a mold with a size of 15cm×15cm×5cm to make a paste block of 15cm×15cm×5cm, putting the paste block into a curing room for segmental curing to obt...

Embodiment 3

[0084] A maintenance-free lead-acid battery positive electrode paste, comprising: 0.04 parts of short fibers, 0.5 parts of sodium perborate, 1.8 parts of additives (0.2 parts of graphene, 1.6 parts of modified silica), 7 parts of red Dan, 3 parts of sulfuric acid, 12 parts of water, 75.66 parts of lead powder.

[0085] The additive is composed of graphene and modified silicon dioxide in a weight ratio of 1:8.

[0086] The preparation method of described modified silica is:

[0087] S1. Add 6 parts by weight of silicon dioxide and 80 parts by weight of lead powder to a high-speed mixer and pre-mix evenly;

[0088] S2. Add 7 parts by weight of deionized water into a high-speed mixer, mix evenly, then add 7 parts by weight of sulfuric acid, mix evenly at 70°C, and discharge to obtain a paste;

[0089] S3, putting the paste into a mold with a size of 15cm×15cm×5cm to make a paste block of 15cm×15cm×5cm, putting the paste block into a curing room for segmental curing to obtain a ...

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Abstract

The invention belongs to the technical field of lead-acid storage batteries, and particularly discloses a maintenance-free lead-acid storage battery positive electrode lead paste and a preparation method thereof. The maintenance-free lead-acid storage battery positive electrode lead paste is prepared from, by weight, 0.04-0.1 part of short fibers, 0.1-0.5 part of sodium perborate, 1-3.5 parts of additives, 3-7 parts of red lead, 3-8 parts of sulfuric acid, 6-12 parts of water and 65-80 parts of lead powder. The lead-acid storage battery prepared from the positive electrode lead paste has good low-temperature starting capability, charge acceptance and capacity, can be effectively used in cold regions, improves the applicability of the lead-acid storage battery prepared from the positive electrode lead paste, and can effectively shorten the container formation efficiency; the additive disclosed by the invention is added into a positive lead paste formula, so that the porosity of an active substance can be effectively increased, and the adhesion and deposition of the active substance on a grid are improved.

Description

technical field [0001] The invention relates to the field of lead-acid batteries, in particular to a maintenance-free lead-acid battery cathode lead paste and a preparation method thereof. Background technique [0002] At present, the maintenance-free lead-acid battery occupies an absolute dominant position in the starting battery, and the technology of this type of battery is relatively mature. The conventional means to improve the low-temperature starting ability of the battery are to increase the number of plates assembled, increase the reaction area, or increase the tin alloy of the grid Content, the cost of the above method is relatively high, which is not conducive to highlighting the price advantage among similar products. [0003] CN106129357A discloses a kind of lead paste of deep glue type special solid lead-carbon battery, which specifically discloses that the composition of the positive lead paste is: 600-1200kg of lead powder, 5-80kg of red lead, 10-60kg of 4BS ...

Claims

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Application Information

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IPC IPC(8): H01M4/57H01M4/62
CPCH01M4/57H01M4/62Y02E60/10
Inventor 朱哲民邵双喜
Owner 广东奥克莱集团有限公司