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Positive lead paste for lead-acid storage battery and preparation method of positive lead paste

A lead-acid battery, positive lead paste technology, applied in lead-acid batteries, battery electrodes, circuits, etc., can solve problems such as low battery capacity and battery performance impact, and achieve the effect of extending service life, prolonging life, and inhibiting decomposition

Active Publication Date: 2017-05-10
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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  • Positive lead paste for lead-acid storage battery and preparation method of positive lead paste

Examples

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Effect test

Embodiment 1

[0017] 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.

[0018] 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

[0020] 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

[0022] 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 positive lead paste for a storage battery and a preparation method of the positive lead paste. The positive lead paste is prepared from the following components in parts by weight: 75-85 parts of lead powder, 5-10 parts of red lead, 0.5-1 part of calcium phosphate, 5-10 parts of dilute sulfuric acid, 0.2-0.3 part of graphene oxide, 0.5-1.5 parts of EDTA-2Na and 10-20 parts of deionized water; and the calcium phosphate, the graphene oxide and the EDTA-2Na are added at the same time, so that the formation effect on the battery is not affected, the capacity of the battery is improved in the using process of the battery, the problem of softening of a later pole plate of the battery is effectively solved and the service life of the battery is prolonged.

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 Applications(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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