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A lead-acid battery

A lead-acid battery, battery tank technology, applied in lead-acid battery, lead-acid battery construction, battery electrodes and other directions, can solve the problems of high waste loss rate, human injury, low plate strength, etc., to reduce waste loss, The effect of reducing floating powder and increasing initial capacity

Active Publication Date: 2020-04-21
SHANDONG JINKELI POWER SOURCES TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the plate prepared by adding this short fiber still has the problems of low strength of the plate, great damage to the human body due to floating powder, and high waste rate in the production process.

Method used

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  • A lead-acid battery
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Examples

Experimental program
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preparation example Construction

[0026] The preparation process of pole plate 1 is as follows:

[0027] (1) Put lead powder and short fibers in a mixer, add sulfuric acid and water and stir continuously to form a lead paste suitable for coating boards;

[0028] (2) Press the combined lead paste on the grid to coat the board;

[0029] (3) Curing and drying; making positive and negative plates 1 .

[0030] (4) In the dilute sulfuric acid electrolyte, the positive plate is connected to the positive electrode of the power supply, the negative plate is connected to the negative plate of the power supply, and the lead paste material on the positive plate is converted into an active substance mainly composed of PbO2 by an electrochemical method. Substances, lead paste substances on the negative plate are transformed into active substances mainly composed of spongy lead.

[0031] Drop test: take the polar plates 1 of each embodiment and comparative example respectively, number them, and weigh them. Make the polar ...

Embodiment 6

[0056] The index of embodiment 6 is obviously better than comparative example.

[0057] Numbering New plate weight Weight after 3 drops Weight after 6 drops Weight after 10 drops 3 drop rate 6 drop rate 10 drop rate 1-1 324.8 324.8 324.7 324.5 0.00% 0.03% 0.09% 1-2 324.3 324.2 324.1 324.0 0.03% 0.06% 0.09% 1-3 324.3 324.2 324.1 323.9 0.03% 0.06% 0.12% 1-4 324.5 324.4 324.3 324.2 0.03% 0.06% 0.11% 1-5 324.8 324.6 324.5 324.4 0.06% 0.09% 0.12% average 324.55 324.45 324.35 324.2 0.03% 0.06% 0.11%

[0058] Numbering New plate weight Weight after 3 drops Weight after 6 drops Weight after 10 drops 3 drop rate 6 drop rate 10 drop rate 1-1 324.8 324.8 324.5 323.2 0.00% 0.09% 0.49% 1-2 325.3 325.0 324.9 324.4 0.09% 0.12% 0.28% 1-3 325.2 325.0 324.8 324.3 0.06% 0.12% 0.28% 1-4 325.5 325.3 325.0 324.7 0.06% 0.15% 0.25% 1-5 3...

Embodiment 7

[0059] The index of embodiment 7 is obviously better than comparative example.

[0060] project New plate weight Weight after 3 drops Weight after 6 drops Weight after 10 drops 3 drop rate 6 drop rate 10 drop rate 1-1 500.2 499.3 497.7 495.0 0.18% 0.50% 1.04% 1-2 501.4 500.6 499.1 496.8 0.16% 0.46% 0.92% 1-3 500.6 499.6 497.9 495.6 0.20% 0.54% 1.00% 1-4 500.1 499.2 497.5 495.0 0.18% 0.52% 1.02% 1-5 500.2 499.5 498.1 495.5 0.14% 0.42% 0.94% 1-6 501.5 501.0 499.9 496.9 0.10% 0.32% 0.92% 1-7 501.5 500.7 499.7 497.2 0.16% 0.36% 0.86% 1-8 500.3 499.4 498.2 495.4 0.18% 0.42% 0.98% 1-9 501.3 499.9 498.0 495.0 0.28% 0.66% 1.26% 1-10 501.6 500.6 499.4 497.3 0.20% 0.44% 0.86% average 500.9 500.0 498.6 496.0 0.18% 0.46% 0.98%

[0061] Numbering New plate weight Weight after 3 drops Weight after 6 drops Weight after 10 drops ...

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Abstract

The invention discloses a lead-acid storage battery, which includes a pole plate, an electrolyte, a separator and a battery tank. The pole plate includes a grid and a lead paste, and the lead paste contains short fibers. It is characterized in that the short fibers The single fiber fineness is 0.15‑0.8D. The application of the present invention improves the strength of the pole plate, reduces the waste in the production process, increases the mechanical strength of the active material, prevents shedding, and improves the cycle performance; at the same time, it reduces the generation of floating powder, and can also increase the porosity of the positive plate and improve the performance of the battery. initial capacity.

Description

technical field [0001] The invention relates to the field of battery components, in particular to a lead-acid storage battery. Background technique [0002] Since the invention of lead-acid batteries, they have always had an absolute advantage in chemical power sources. This is because of its low price, easy access to raw materials, sufficient reliability in use, suitable for large current discharge and wide ambient temperature range. Lead-acid batteries are currently the most widely used secondary energy in the world, with the highest safety performance and highest recyclability. At the same time, after years of development of lead-acid battery technology, breakthroughs have been made in its specific energy, cycle life, and high and low temperature adaptability. As an important part of the battery plate, short fibers play a pivotal role in the battery. . [0003] Short fibers with a general length of 1-4 mm are added to the lead paste for preparing the pole plate. The sh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/62H01M4/56H01M10/12
CPCY02E60/10Y02P70/50
Inventor 邢延超班涛伟刘文林曹贵发周龙金苏守前
Owner SHANDONG JINKELI POWER SOURCES TECH
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