Lead-carbon colloidal battery polar plate lead paste and preparation method thereof

A colloidal battery and lead paste technology, which is applied to battery electrodes, lead-acid batteries, circuits, etc., can solve the problems of weak adsorption, unfavorable charging and discharging, weak ability to absorb and maintain acid, and low utilization of active materials. To achieve the effect of improving fast charging ability, facilitating uniform distribution, and excellent charging and discharging characteristics

Active Publication Date: 2020-09-04
HUBEI RUNYANG NEW ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this paste process include: low porosity of lead paste, weak ability to absorb acid and maintain acid solution, low capacity, and low utilization rate of active materials; The surface of the pores has a weak adsorption force for acid, which is unfavorable for charging and discharging, and the ability to retain acid and water is weak

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] (1) Configure polyanionic cellulose solution. Proceed as follows:

[0044] First, add polyanionic cellulose into pure water in an amount of 10% by weight, stir well until it is completely dissolved, store it for 2 hours and use it;

[0045] Secondly, the polyanionic cellulose mother liquor prepared in the first step is diluted according to the mass ratio of pure water: polyanionic cellulose mother liquor = 100:1 to obtain a polyanionic cellulose solution.

[0046] (2) Measure the lead paste components of the positive plate.

[0047] Lead oxide powder: 100kg;

[0048] 1.20g / cm 3 Dilute sulfuric acid: 7kg;

[0049] Short polyester: 0.08kg;

[0050] Cypbrid carbon: 0.1kg;

[0051] Silica with a particle size of 1-9nm: 0.1 kg;

[0052] Polyanionic cellulose solution: 0.07kg;

[0053] Pure water: 7kg.

[0054] (3) Measure the lead paste components of the negative plate.

[0055] Lead oxide powder: 100kg;

[0056] 1.20g / cm 3 Dilute sulfuric acid: 7kg;

[0057] Sh...

Embodiment 2

[0073] (1) Configure polyanionic cellulose solution. Proceed as follows:

[0074] First, add polyanionic cellulose into pure water in an amount of 18% by weight, stir well until it is completely dissolved, store it for 2 hours and use it;

[0075] Secondly, the polyanionic cellulose mother liquor prepared in the first step is diluted according to the mass ratio of pure water:polyanionic cellulose mother liquor=100:2.5 to obtain a polyanionic cellulose solution.

[0076] (2) Measure the lead paste components of the positive plate.

[0077] Lead oxide powder: 100kg;

[0078] 1.40g / cm 3 Dilute sulfuric acid: 8.5kg;

[0079] Short acrylic: 0.14kg;

[0080] Cypbrid Carbon: 0.15kg;

[0081] Silica with a particle size of 1-9nm: 0.3kg;

[0082] Polyanionic cellulose solution: 0.3kg;

[0083] Pure water: 8.5kg.

[0084] (3) Measure the lead paste components of the negative plate.

[0085] Lead oxide powder: 100kg;

[0086] 1.40g / cm 3 Dilute sulfuric acid: 9kg;

[0087] Sh...

Embodiment 3

[0103] (1) Configure polyanionic cellulose solution. Proceed as follows:

[0104] First, add polyanionic cellulose into pure water in an amount of 25% by weight, stir well until it is completely dissolved, store it for 2 hours and use it;

[0105] Secondly, the polyanionic cellulose mother liquor prepared in the first step is diluted according to the mass ratio of pure water: polyanionic cellulose mother liquor = 100:5 to obtain a polyanionic cellulose solution.

[0106] (2) Measure the lead paste components of the positive plate.

[0107] Lead oxide powder: 100kg;

[0108] 1.60g / cm 3 Dilute sulfuric acid: 10kg;

[0109] Short spandex: 0.2kg;

[0110] Cypbrid carbon: 0.2kg;

[0111] 0.5kg of silicon dioxide with a particle size of 1-9nm;

[0112] Polyanionic cellulose solution: 0.5kg;

[0113] Pure water: 10kg.

[0114] (3) Measure the lead paste components of the negative plate.

[0115] Lead oxide powder: 100kg;

[0116] 1.60g / cm 3 Dilute sulfuric acid: 11kg;

...

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Abstract

The invention provides a formula and a preparation method of a lead-carbon colloid battery electrode plate lead paste. According to the present invention, partial lead is replaced by Cypbrid carbon, such that the battery has characteristics of the lead acid battery and the capacitor with the adding of the Cypbrid carbon so as to easily improve the rapid charging capacity of the battery, increase the power density of the battery and prolong the cycle life, and the Cypbrid carbon occupies the partial electrode space so as to cause the reducing of the energy density and increase the gassing amount of the electrode; SiO2 and polyanionic cellulose are added, such that the electrode plate porosity is increased, the adsorption of sulfuric acid is increased, and the protection effect is provided for the active substance attached on the surface of the electrode plate; the colloid exists in the dry paste of the electrode plate so as to increase the sulfuric acid and water retention capacity and provide the excellent charge and discharge characteristics, and can be matched with the colloidal electrolyte, such that the colloid content in the acid injection liquid can be reduced, the uniform distribution of the filled colloid is easily achieved, and the electrolyte in the separation plate and the colloid can be organically combined in the electrode plate.

Description

technical field [0001] The invention relates to lead-carbon colloidal battery pole plate technology, in particular to a lead-carbon colloidal battery pole plate lead paste and a preparation method thereof. Background technique [0002] Traditional lead-acid batteries have the characteristics of short cycle life and low specific energy. In order to improve the cycle life of the battery, it will be mixed with colloid to make a colloidal battery when injecting acid. In this way, the amount of glue added is large, the perfusion is difficult, and it is easy to mix unevenly. [0003] The manufacturing process of conventional lead-acid battery plates is as follows: First, mix lead oxide powder and other incoming materials for paste, smear the obtained lead paste on the grid, and then pour acid on the surface of the smeared plate, quickly Drying, curing, and finally polishing the green plates. Wherein, the process of mixing the paste is as follows: put the lead oxide powder in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/36H01M4/56H01M4/587H01M4/62H01M10/06
CPCH01M4/364H01M4/56H01M4/587H01M4/62H01M10/06Y02E60/10
Inventor 罗旭陈健刘克宇程先清徐进
Owner HUBEI RUNYANG NEW ENERGY
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