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A lead-acid storage battery negative lead paste additive

A technology of lead-acid batteries and negative electrode paste, which is applied in the field of lead paste, can solve problems affecting service life, etc., and achieve the effects of prolonging service life and slowing down oxidation

Active Publication Date: 2018-09-11
CHENGDU ZHIRONG ZHICHUANG INTPROP MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing additives cannot solve the problem that the spongy lead particles on the negative plate are oxidized in the air and affect the service life.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A lead paste additive for lead-acid batteries, comprising the following components by weight: barium sulfate: humic acid: carbon black: tannin extract: 1-hydroxy-2-naphthoic acid: rosin in a weight ratio of 6:5 :5:4:3:0.3; wherein the tannin content in the extract is 70%, the mechanical impurity content in the rosin is 0.05%, and the purity of 1-hydroxyl-2-naphthoic acid is 90%. Using the additives in this example to make the lead-acid battery with negative electrode paste, after 300 charge and discharge experiments, the amount of lead particles on the negative electrode plate was oxidized was 17.1%.

Embodiment 2

[0023] A lead paste additive for lead-acid batteries, comprising the following components by weight: barium sulfate: humic acid: carbon black: tannin extract: 1-hydroxy-2-naphthoic acid: rosin in a weight ratio of 6:5 :5:4:3:0.3; wherein the tannin content in the extract is 80%, the mechanical impurity content in the rosin is 0.03%, and the purity of 1-hydroxyl-2-naphthoic acid is 95%. Using the additives in this example to make the lead-acid battery with negative electrode paste, after 300 charge and discharge experiments, the amount of lead particles on the negative electrode plate was oxidized was 15.4%.

Embodiment 3

[0025] A kind of lead-acid accumulator negative pole lead paste additive, it comprises the following components of weight ratio: barium sulfate: humic acid: carbon black: tannin extract: 1-hydroxyl-2-naphthoic acid: the weight ratio of rosin is 6: 5:5:4:3:0.3; wherein the tannin content in the extract is 95%, the mechanical impurity content in the rosin is 0.01%, and the purity of 1-hydroxy-2-naphthoic acid is 99%. Using the additives in this example to make the lead-acid battery with negative electrode paste, after 300 charge and discharge experiments, the amount of lead particles on the negative electrode plate was oxidized was 11.4%.

[0026] Referring to Example 1:

[0027] A lead-acid storage battery negative lead paste additive, comprising the following components by weight ratio: barium sulfate: humic acid: carbon black: tannin extract: the weight ratio of rosin is 6:5:5:4:0.3; The tannin content in the gum is 70%, and the mechanical impurity content in the rosin is 0....

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Abstract

The invention discloses an anode lead paste additive for a lead-acid storage battery. The additive comprises the components of barium sulfate, humic acid, carbon black, acetylene black, tannin extract, 1-Hydroxy-2-naphthoic acid and rosin. The weight ratio of the barium sulfate, humic acid, carbon black, acetylene black, tannin extract, 1-Hydroxy-2-naphthoic acid and rosin is 6:5:2:3:4:3:0:3. The invention aims at providing the anode lead paste additive for the lead-acid storage battery, thereby solving the problem that in the prior art, spongy lead particles on an anode plate are oxidized in air. Purposes of reducing the oxidation rate of the lead particles and improving the service life of the battery are realized.

Description

technical field [0001] The invention relates to the field of lead paste, in particular to a lead paste additive for the negative pole of a lead-acid storage battery. Background technique [0002] The positive and negative plates are very critical components in the battery, and the quality of the positive and negative plates directly determines the discharge capacity and cycle life of the battery. With the rapid development of the automobile industry, the performance requirements for lead-acid batteries are getting higher and higher, one of which is to put forward higher requirements for the service life of batteries under high temperature conditions. The negative electrode of the lead-acid battery is composed of a grid and fine-grained spongy lead. These spongy lead is a porous fluffy substance, which has a surface area many times larger than that of metallic lead. Due to the tendency of spontaneous reduction of material free energy, Therefore, during the charging and disch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/14H01M4/62
CPCH01M4/14H01M4/62H01M4/628Y02E60/10
Inventor 张燕王军
Owner CHENGDU ZHIRONG ZHICHUANG INTPROP MANAGEMENT CO LTD