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Valve-regulated lead-acid battery and preparation method thereof

A lead-acid battery, valve-controlled technology, applied in lead-acid batteries, lead-acid battery construction, lead-acid battery electrodes, etc., can solve the problems of low output power and small geometric area, and achieve high output power and high-power discharge. The effect of improving performance and plate surface area

Active Publication Date: 2020-01-07
ZIBO TORCH ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, industrial large-capacity (2V500Ah~2V3000Ah) VRLA batteries are limited by traditional manufacturing processes. Usually, the thickness of the positive and negative plates is relatively thick (the thickness of the positive plate is about 4mm, and the thickness of the negative plate is about 3mm), and the geometric area for electrochemical reactions is small. , the output power is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) plate manufacturing

[0026] Heating the lead alloy into a molten liquid, continuous casting and rolling to form a 1.4mm thick lead strip, and then sending the lead strip to the stamping equipment, under the action of the stamping equipment, the lead strip is punched into a grid-shaped grid strip, punched The good grid strip is sent to the grid shaping equipment, and the section of the grid bar and the frame section are shaped from a rectangle to a hexagon, forming a positive grid strip with a total thickness of 1.9mm;

[0027] (2) The negative grid adopts the continuous casting and rolling process, and the molten lead alloy liquid is continuously injected between the fixed mold and the rolling mold to form a 1.2mm thick negative grid belt;

[0028] (3) Use a continuous coating machine to fill and coat the lead paste on the positive and negative grids, and coat the coated paper on both sides. After surface drying, roll cutting, curing and drying, the positive and ne...

Embodiment 2

[0032] (1) plate manufacturing

[0033] Heating the lead alloy into a molten liquid, continuous casting and rolling to form a 1.2mm thick lead strip, and then sending the lead strip to the stamping equipment, under the action of the stamping equipment, the lead strip is punched into a grid-shaped grid strip, punched The good grid strip is sent to the grid shaping equipment, and the section of the grid bar and the frame section are shaped from a rectangle to a hexagon, forming a positive grid strip with a total thickness of 1.6mm;

[0034] (2) The negative grid adopts the continuous casting and rolling process, and the molten lead alloy liquid is continuously injected between the fixed mold and the rolling mold to form a 1.0mm thick negative grid belt;

[0035] (3) Use a continuous coating machine to fill and coat the lead paste on the positive and negative grids, and coat the coated paper on both sides. After surface drying, roll cutting, curing and drying, the positive and ne...

Embodiment 3

[0039] (1) plate manufacturing

[0040] Heating the lead alloy into a molten liquid, continuous casting and rolling to form a 0.9mm thick lead strip, and then sending the lead strip to the stamping equipment, under the action of the stamping equipment, the lead strip is punched into a grid-shaped grid strip, punched The good grid strip is sent to the grid shaping equipment, and the section of the grid bar and the frame section are shaped from a rectangle to a hexagon, forming a positive grid strip with a total thickness of 1.2mm;

[0041] (2) The negative grid adopts the continuous casting and rolling process, and the molten lead alloy liquid is continuously injected between the fixed mold and the rolling mold to form a 0.7mm thick negative grid belt;

[0042] (3) Use a continuous coating machine to fill and coat the lead paste on the positive and negative grids, and coat the coated paper on both sides. After surface drying, roll cutting, curing and drying, the positive and ne...

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Abstract

The invention belongs to the technical field of lead acid storage batteries and particularly relates to a valve-control type lead acid storage battery and a preparation method thereof. The total thickness of a positive plate grid is 1.0mm-2.5mm, the thickness of a positive electrode plate is 1.0m-3.0mm, the thickness of a negative plate grid is 0.6mm-2.0mm and the thickness of a negative electrode plate is 0.6m-2.5mm. The section of a grid rib of the positive plate grid is a polygon and the number of edges of the polygon is more than or equal to 6; the grid rib can be deformed for 0mm-0.5mm in the thickness direction so that the total thickness of the positive plate grid is more than or equal to a base thickness of the positive plate grid (namely the thickness of a lead belt); and the base thickness of the positive plate grid is 0.9mm-2.0mm. According to the valve-control type lead acid storage battery provided by the invention, the short time rate and the high-power discharging performance are improved. The invention further provides a preparation method of the valve-control type lead acid storage battery; and the problem that the molding of a large-capacity thin type plate grid is difficult in a traditional method is overcome, the problems in the prior art that the production efficiency is relatively low and the quality is not balanced are also solved, and the deformation problems of pasting and assembling processes of a thin type electrode plate are solved.

Description

technical field [0001] The invention belongs to the technical field of lead-acid batteries, and in particular relates to a valve-regulated lead-acid battery and a preparation method thereof. Background technique [0002] With the rapid development of energy storage, communication, electric power and other fields, valve-regulated lead-acid batteries (VRLA batteries for short) are widely used for their advantages of pollution-free, maintenance-free, and long life. At the same time, they are used in data centers, UPS power systems, Shorter backup time (such as 5min, 15min, etc.) application scenarios such as power system accident discharge put forward higher requirements for its short-time rate and high-power discharge performance. At present, industrial large-capacity (2V500Ah~2V3000Ah) VRLA batteries are limited by traditional manufacturing processes. Usually, the thickness of the positive and negative plates is relatively thick (the thickness of the positive plate is about 4...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/12H01M4/14H01M4/73H01M4/82
CPCH01M4/14H01M4/73H01M4/82H01M10/12Y02E60/10Y02P70/50
Inventor 张梦颖赵玉阳董书岭吴涛丁广波陈默
Owner ZIBO TORCH ENERGY
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