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A kind of lead-acid battery cathode lead paste prepared by α-pbo

A technology of lead-acid battery and positive electrode paste, which is applied in the direction of lead-acid battery electrodes, battery electrodes, circuits, etc., which can solve the problems of short service life, lead-acid battery positive electrode paste affecting charge and discharge efficiency, etc., and reduce battery resistivity , Improve battery capacity and cycle life, and not easy to lose the effect

Active Publication Date: 2018-02-23
CHAOWEI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a kind of α-PbO preparation with improved safety performance, increased battery capacity and battery life, and cycle performance in order to solve the defects that the existing lead-acid battery positive electrode paste affects the late charge and discharge efficiency and short service life. Lead-acid battery positive paste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A positive lead paste for lead-acid batteries prepared by using α-PbO, the positive lead paste is made of the following raw materials in parts by weight: 65 parts of α-PbO, 20 parts of pure lead, 3 parts of sulfuric acid, 13 parts of deionized water , 0.5 parts of graphite, 0.1 parts of sodium sulfate, 0.05 parts of conductive fibers, 1 part of antimony trioxide, and 0.5 parts of additives.

[0032] Among them, the auxiliary agent is a polyaniline-coated nano-cerium oxide and titanium oxide / graphene composite material with a mass ratio of 3:1.

[0033] The preparation method of polyaniline-coated nano-cerium oxide is as follows: disperse cerium oxide in butanediol to obtain a reaction system, then slowly add sodium hydroxide, stir for 1 hour, heat up to 140°C within 2 hours, react for 1 hour and then cool; centrifuge to obtain The precipitate was washed with a mixed solution of ethanol and methyl acetate at a volume ratio of 1:2, acetone, and deionized water, and dried ...

Embodiment 2

[0035] A lead-acid battery positive lead paste prepared by utilizing α-PbO, the positive lead paste is made of the following raw materials in parts by weight: 75 parts of α-PbO, 25 parts of pure lead, 4 parts of sulfuric acid, 15 parts of deionized water , 0.8 parts of graphite, 0.3 parts of sodium sulfate, 0.1 parts of conductive fiber, 1.4 parts of antimony trioxide, and 1.8 parts of additives.

[0036] Among them, the auxiliary agent is a polyaniline-coated nano-cerium oxide and titanium oxide / graphene composite material with a mass ratio of 4:1.

[0037] The preparation method of polyaniline-coated nano-cerium oxide is as follows: disperse cerium oxide in butanediol to obtain a reaction system, then slowly add sodium hydroxide, stir for 2 hours, heat up to 150°C within 2.2 hours, cool after 2 hours of reaction; centrifuge The obtained precipitate was successively washed with a mixed solution of ethanol and methyl acetate with a volume ratio of 1:2, acetone, and deionized w...

Embodiment 3

[0039] A positive lead paste for lead-acid battery prepared by α-PbO, the positive lead paste is made of the following raw materials in parts by weight: 80 parts of α-PbO, 35 parts of pure lead, 5 parts of sulfuric acid, 20 parts of deionized water , 1.5 parts of graphite, 0.5 parts of sodium sulfate, 0.15 parts of conductive fiber, 2 parts of antimony trioxide, and 2.3 parts of additives.

[0040] Among them, the auxiliary agent is a polyaniline-coated nano-cerium oxide and titanium oxide / graphene composite material with a mass ratio of 5:1.

[0041] The preparation method of polyaniline-coated nano-cerium oxide is as follows: disperse cerium oxide in butanediol to obtain a reaction system, then slowly add sodium hydroxide, stir for 3 hours, heat up to 160 ° C within 2.5 hours, cool after 3 hours of reaction; centrifuge The obtained precipitate was successively washed with a mixed solution of ethanol and methyl acetate with a volume ratio of 1:2, acetone, and deionized water, a...

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Abstract

The invention relates to a lead-acid storage battery cathode lead plaster prepared from alpha-PbO. The cathode lead plaster is prepared from the following raw materials in parts by weight: 65 to 80 parts of alpha-PbO, 20 to 35 parts of pure lead, 3 to 5 parts of sulfuric acid, 13 to 20 parts of deionized water, 0.5 to 1.5 parts of graphite, 0.1 to 0.5 part of sodium sulfate, 0.05 to 0.15 part of conductive fiber, 1 to 2 parts of antimonous oxide and 0.5 to 2.3 parts of an additive. According to the lead plaster disclosed by the invention, the electrical resistivity of a battery can be obviously reduced, and the large current discharge performance and discharge capacity are improved; the lead plaster has higher hydrogen evolution and oxygen evolution potentials than those of a carbon material, gas evolution of the battery in the last stage of battery charging is effectively inhibited, and water loss of the battery is reduced; the lead plaster is high in stability in an acidic system, resistant to high voltage oxidation and not easy to loss, the capacity of the battery is improved, and the cycle life of the battery is prolonged.

Description

technical field [0001] The invention belongs to the field of lead-acid storage batteries, and in particular relates to a lead-acid storage battery anode lead paste prepared by using α-PbO with improved safety performance, improved battery capacity and battery life, and cycle performance. Background technique [0002] Lead-acid battery (Lead-acid battery) was invented by the Frenchman Plante in 1859. It is mainly composed of positive plate, negative plate, electrolyte, separator, electrolytic tank, battery cover, pole and so on. The main active ingredient of the positive electrode is lead dioxide, the main active ingredient of the negative electrode is lead, and the electrolyte is sulfuric acid solution. The chemical reactions involved in its discharge are as follows: [0003] Discharge positive electrode: PbO2+4H + +SO4 2- +2e-=PbSO4+2H2O; [0004] Discharge negative electrode: Pb+SO4 2 --2e - =PbSO4; [0005] Lead-acid batteries have good charging and discharging per...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/57H01M4/14
CPCH01M4/14H01M4/57Y02E60/10
Inventor 代少振吴鑫王江林项晨
Owner CHAOWEI POWER CO LTD