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Lead plaster composition for manufacturing negative plate of lead-acid battery, negative plate of lead-acid battery, and lead-acid battery

A lead-acid battery and composition technology, which is applied to lead-acid battery electrodes, lead-acid batteries, battery electrodes, etc., can solve the problem that lead-acid batteries need to be further improved, and achieve the effect of increasing utilization rate

Active Publication Date: 2013-11-13
YANCHENG SILU INFORMATION TECH SERVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But, adopt the life-span of the lead-acid accumulator of this negative pole lead paste to still need to improve further

Method used

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  • Lead plaster composition for manufacturing negative plate of lead-acid battery, negative plate of lead-acid battery, and lead-acid battery
  • Lead plaster composition for manufacturing negative plate of lead-acid battery, negative plate of lead-acid battery, and lead-acid battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Mix 1000kg lead powder with an oxidation degree of 75%, 0.8kg polypropylene staple fiber with a length of 3mm, 10kg gallium sulfate, 8kg barium sulfate and 2.5kg carbon black, add 109kg pure water and 120kg density of 1.28g / cm 3 dilute sulfuric acid, which is stirred to obtain a slurry, which is the lead paste composition used to manufacture the negative plate of the lead-acid battery;

[0069] Coating the obtained lead paste composition on a grid made of lead-calcium alloy, aging, drying, and chemical conversion treatment to make a lead-acid battery negative plate;

[0070] Assemble the positive plate, the PE separator and the negative plate of the lead-acid battery obtained, and pour in sulfuric acid electrolyte to make a lead-acid battery, denoted as battery I.

[0071] According to the method described above, the lead-acid battery was subjected to charge and discharge cycle durability test. See Table 1 for the test results. Table 1 shows the cycle durability perfor...

Embodiment 2

[0073] Adopt 4kg gallium sulfate, make lead-acid accumulator according to the method for embodiment 1, be denoted as battery II.

[0074] According to the method described above, the lead-acid battery was subjected to charge and discharge cycle endurance test, and the test results are shown in Table 1.

Embodiment 3

[0076] Adopt 16kg germanium sulfate, make lead-acid accumulator according to the method for embodiment 1, denote as battery III.

[0077] According to the method described above, the lead-acid battery was subjected to charge and discharge cycle endurance test, and the test results are shown in Table 1.

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Abstract

The invention provides a lead plaster composition for manufacturing a negative plate of a lead-acid battery. The lead plaster composition comprises the following components in percentage by weight (based on the weight of lead powder): 10.5-11.5% of water, 11.5-12.5% of dilute sulphuric acid, 0.7-0.9% of barium sulfate, 0.2-0.3% of carbon black, 0.07-0.09% of short fiber, 0.4-1.6% of gallium sulfate or germanium sulfate, and the lead powder. In the lead plaster composition, due to addition of the gallium sulfate or the germanium sulfate, the growth of lead granules can be inhibited, a mixed crystal is easily formed, the compact passivation phenomenon on the surface of an electrode during large-current discharge is effectively avoided, the cycle life under large-current discharge of the battery is greatly prolonged. The invention also provides the negative plate of the lead-acid battery, manufactured by adopting the lead plaster composition, as well as the lead-acid battery assembled by the negative plate of the lead-acid battery.

Description

technical field [0001] The invention relates to the technical field of lead-acid batteries, in particular to a lead paste composition for manufacturing negative plates of lead-acid batteries, negative plates of lead-acid batteries and lead-acid batteries. Background technique [0002] Since the lead-acid battery was invented in 1958, it has a history of more than 100 years. Lead-acid batteries have the advantages of simple structure, reliable performance, convenient use, easy access to raw materials and low price. They are widely used in many fields of national economy such as transportation, communication and national defense, and have become indispensable in social production and human life. energy products. [0003] Generally speaking, a lead-acid battery includes a positive plate, a negative plate and an electrolyte, etc., and the plate is made of a grid coated with lead paste. One of the main factors of performance. The active material of the negative plate in the ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/57H01M4/62H01M4/14H01M10/06
CPCY02E60/126Y02E60/10
Inventor 赵恒祥刘毅
Owner YANCHENG SILU INFORMATION TECH SERVICE CO LTD
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