A kind of positive lead paste of lead-acid battery and preparation method thereof

A technology of lead-acid battery and positive electrode paste, which is applied in the direction of lead-acid battery, battery electrode, circuit, etc., can solve the problems of battery performance impact, low battery capacity, etc., to reduce impedance, prolong service life, improve specific capacity and cycle The effect of stability

Active Publication Date: 2018-12-28
TIANNENG GRP HENAN ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of phosphate has a certain impact on the performance of the battery due to the dissolution of phosphate ions during the formation period, and the battery capacity is low.

Method used

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  • A kind of positive lead paste of lead-acid battery and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A kind of lead-acid battery positive lead paste, the mass parts of each component of this positive lead paste is 82 parts of lead powder, 5 parts of red lead, 0.5 part of calcium phosphate, 6.5 parts of dilute sulfuric acid, 0.2 part of hydroxylated graphene, EDTA- 0.7 parts of 2Na, 5.1 parts of deionized water.

[0017] The preparation method of above-mentioned a kind of lead-acid accumulator anode lead paste, comprises the following steps: according to above-mentioned lead paste formula, each component is weighed, and hydroxylated graphene, calcium phosphate, EDTA-2Na are stirred and mixed in deionized water, Quickly add it to the paste machine within 2 minutes and mix it evenly with lead powder and red lead, slowly add dilute sulfuric acid into the paste machine, keep stirring during the addition process, continue stirring for 10 minutes after adding acid, stir evenly and wait to cool to After room temperature, the paste can be released.

Embodiment 2

[0019] The difference from Example 1 is that a positive lead paste for a lead-acid storage battery, the mass parts of each component of the positive lead paste is 78.5 parts of lead powder, 7 parts of red lead, 0.7 part of calcium phosphate, 7 parts of dilute sulfuric acid, hydroxyl 0.3 parts of graphene, 0.7 parts of EDTA-2Na, 5.8 parts of deionized water.

Embodiment 3

[0021] The difference from Example 1 is that a positive lead paste for a lead-acid storage battery, the mass parts of each component of the positive lead paste is 82 parts of lead powder, 5 parts of red lead, 0.5 part of calcium phosphate, 6.5 parts of dilute sulfuric acid, carboxyl 0.2 parts of graphene, 0.7 parts of EDTA-2Na, 5.1 parts of deionized water.

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Abstract

The invention relates to a storage battery material and a preparation method thereof, in particular to a storage battery positive lead paste and a preparation method thereof. The components by mass of the positive lead paste are 75-85 parts of lead powder, 5-10 parts of red lead, 0.5-1 parts of calcium, 5-10 parts of dilute sulfuric acid, 0.2-0.3 parts of graphene oxide, 0.5-1.5 parts of EDTA-2Na, 10-20 parts of deionized water, and add calcium phosphate, graphene oxide and EDTA-2Na at the same time , has no effect on the formation effect of the battery, increases the capacity of the battery during the use of the battery, effectively overcomes the softening problem of the plate in the later stage of the battery, and prolongs the service life of the battery.

Description

technical field [0001] The invention relates to a storage battery material and a preparation method thereof, in particular to a storage battery pole plate lead paste and a preparation method thereof, belonging to the technical field of storage batteries. Background technique [0002] When the lead-acid battery is used repeatedly, the main life decay mode is the softening of the positive electrode paste. Its essence is the change of the crystal of the lead paste, which leads to the extreme softening and failure of the lead paste. Therefore, how to protect the lead paste crystals from changing during recycling is the key to improving the cycle life of lead-acid batteries. [0003] Notification No. CN 10424164 A discloses a positive lead paste for lead-acid batteries. The invention adopts adding slightly soluble phosphate into the formula, so that the phosphate radicals are slowly released during the use of the battery, thus ensuring the formation process of the battery and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/56H01M10/06
CPCH01M4/56H01M10/06Y02E60/10
Inventor 欧阳万忠韩峰王强民刘为胜赵兴强王晓飞
Owner TIANNENG GRP HENAN ENERGY TECH
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