Formula of storage battery positive electrode lead paste

Abstract

The invention belongs to the technical field of preparation of storage batteries, and particularly relates to a formula of a storage battery positive electrode lead paste. Comprising 800-1000 parts of lead powder, 1-5 parts of sodium antimonate, 0.5-3 parts of stannous mono-sulphate, 1-5 parts of graphite and 1-5 parts of conductive fibers. Wherein the sodium antimonate is the mass fraction of the sodium antimonate in the sodium antimonate aqueous solution, and the stannous sulfate is the mass fraction of the stannous sulfate in the stannous sulfate dilute sulfuric acid solution. According to the storage battery positive electrode lead paste disclosed by the invention, by using the components, in the preparation process, through a formula and a preparation method of liquid components, a specific positive electrode additive combination is adopted, and the dosage of the liquid components is controlled within a certain range, so that the prepared lead paste is uniform in texture and has good uniformity; the argillization of the positive lead plaster is delayed; and the discharge capacity and the cycle life of the battery are improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of preparation of storage battery, and particularly relates to a formula of positive lead paste of storage battery. BACKGROUND

[0002] At present, it is found through investigation that, in the process of manufacturing the plate, the paste mixing process is a key process in the production process of lead-acid storage battery. The lead paste is the matrix of active material of the plate, and is a paste-like material with certain plasticity, which is formed by mixing lead powder with certain oxidation degree and apparent density, water and sulfuric acid solution through mechanical stirring. The role of the lead paste in the lead-acid storage battery is mainly to provide and store the required material for the electrochemical reaction. The paste mixing is to prepare lead paste particles with certain shape and composition, which are the basic elements of the lead paste. After filling and coating the grid, the plate is solidified and formed, and the electrode of the lead-acid storage battery is formed. The quality of the paste mixing process directly affects the consistency and bonding strength of the plate, and thus affects the discharge capacity and cycle life of the battery. SUMMARY

[0003] The present application provides a formula of positive lead paste of storage battery, which comprises:

[0004] 800-1000 parts of lead powder, 1-5 parts of sodium antimonate, 0.5-3 parts of stannous sulfate, 1-5 parts of graphite and 1-5 parts of conductive fiber.

[0005] The sodium antimonate is the mass fraction of sodium antimonate in the sodium antimonate aqueous solution, and the stannous sulfate is the mass fraction of stannous sulfate in the stannous sulfate dilute sulfuric acid solution.

[0006] The positive lead paste of the storage battery of the present application has uniform texture and good uniformity by using the above components, through the formula and preparation method of the liquid component, using specific positive electrode additive combination and controlling the amount within a certain range during the manufacturing process, so that the prepared lead paste has improved initial capacity of the battery, delayed mudification of the positive lead paste, improved discharge capacity and cycle life of the battery. DETAILED DESCRIPTION

[0007] The technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0008] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0009] Example 1:

[0010] The formula for the positive electrode lead paste of the storage battery of the present invention includes:

[0011] 800-1000 parts lead powder, 1-5 parts sodium antimonate, 0.5-3 parts stannous sulfate, 1-5 parts graphite, 1-5 parts conductive fiber;

[0012] Wherein, sodium antimonate refers to the mass fraction of sodium antimonate in an aqueous solution of sodium antimonate, and stannous sulfate refers to the mass fraction of stannous sulfate in a dilute sulfuric acid solution of stannous sulfate.

[0013] Example 2:

[0014] The formula for the positive electrode lead paste of the storage battery of the present invention includes:

[0015] 800 parts lead powder, 1 part sodium antimonate, 0.5 parts stannous sulfate, 1 part graphite, and 1 part conductive fiber.

[0016] Example 3:

[0017] The formula for the positive electrode lead paste of the storage battery of the present invention includes:

[0018] 1000 parts lead powder, 5 parts sodium antimonate, 3 parts stannous sulfate, 5 parts graphite, and 5 parts conductive fiber.

[0019] Example 4:

[0020] The formula for the positive electrode lead paste of the storage battery of the present invention includes:

[0021] 1000 parts lead powder, 2 parts sodium antimonate, 2 parts stannous sulfate, 3 parts graphite, and 2 parts conductive fiber.

[0022] Example 5:

[0023] The formula for the positive electrode lead paste of the storage battery of the present invention includes:

[0024] 800-1000 parts lead powder, 1-5 parts sodium antimonate, 0.5-3 parts stannous sulfate, 1-5 parts graphite, 1-5 parts conductive fiber; 0.2-2 parts bismuth trioxide, 0.2-2 parts antimony trioxide, 0.2-2 parts stannous sulfate.

[0025] Example 6:

[0026] The formula for the positive electrode lead paste of the storage battery of the present invention includes:

[0027] 800-1000 parts lead powder, 1-5 parts sodium antimonate, 0.5-3 parts stannous sulfate, 1-5 parts graphite, 1-5 parts conductive fiber; 0.2-2 parts bismuth trioxide, 0.2-2 parts antimony trioxide, 0.2-2 parts stannous sulfate, and 5-10 parts sulfuric acid.

[0028] In this invention, the sulfuric acid is a sulfuric acid-containing solution with a density of 1.4 g / ml.

[0029] The battery positive electrode lead paste of the present invention, by using the above-mentioned components, adopts a specific combination of positive electrode additives through the formulation and preparation method of liquid components during the manufacturing process, and controls the amount of additives within a certain range, so that the prepared lead paste has a uniform texture and good uniformity, improves the initial capacity of the battery, delays the mud formation of the positive electrode lead paste, and improves the discharge capacity and cycle life of the battery.

[0030] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A formula for a positive electrode lead paste for a storage battery, characterized in that, The formula for the positive electrode lead paste includes: 800-1000 parts lead powder, 1-5 parts sodium antimonate, 0.5-3 parts stannous sulfate, 1-5 parts graphite, 1-5 parts conductive fiber; Wherein, sodium antimonate refers to the mass fraction of sodium antimonate in an aqueous solution of sodium antimonate, and stannous sulfate refers to the mass fraction of stannous sulfate in a dilute sulfuric acid solution of stannous sulfate.

2. The formula for the positive electrode lead paste of the storage battery according to claim 1, characterized in that, The composition includes 800 parts lead powder, 1 part sodium antimonate, 0.5 parts stannous sulfate, 1 part graphite, and 1 part conductive fiber.

3. The formula for the positive electrode lead paste of the storage battery according to claim 1, characterized in that, 1000 parts lead powder, 5 parts sodium antimonate, 3 parts stannous sulfate, 5 parts graphite, and 5 parts conductive fiber.

4. The formula for the positive electrode lead paste of the storage battery according to claim 1, characterized in that, 1000 parts lead powder, 2 parts sodium antimonate, 2 parts stannous sulfate, 3 parts graphite, and 2 parts conductive fiber.

5. The formula for the positive electrode lead paste of the storage battery according to claim 1, characterized in that, The formula also includes the following ingredients: bismuth trioxide, antimony trioxide, and stannous sulfate.

6. The formula for the positive electrode lead paste of the storage battery according to claim 5, characterized in that, The amount of bismuth trioxide, antimony trioxide, and stannous sulfate added is 0.2-2 parts each.

7. The formula for the positive electrode lead paste of the storage battery according to claim 1, characterized in that, The formula also includes sulfuric acid.

8. The formula for the positive electrode lead paste of the storage battery according to claim 7, characterized in that, The sulfuric acid is 5-10 parts.

9. The formula for the positive electrode lead paste of the storage battery according to claim 8, characterized in that, The sulfuric acid is a sulfuric acid-containing solution with a density of 1.4 g / ml.