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A kind of preparation method of low-temperature stable lead-acid storage battery

A lead-acid battery, low-temperature stable technology, applied in the direction of lead-acid battery, lead-acid battery construction, lead-acid battery electrodes, etc., can solve the company's implementation difficulties and resistance problems, to achieve good consistency, stable low-temperature performance, and stable lignin content Effect

Active Publication Date: 2021-06-25
TIANNENG BATTERY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the price of high-temperature lignin in the market is at least 30% higher than that of conventional lignin. Under the huge cost pressure of the current lead-acid industry, many companies have great difficulties in implementing it.

Method used

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  • A kind of preparation method of low-temperature stable lead-acid storage battery
  • A kind of preparation method of low-temperature stable lead-acid storage battery

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Experimental program
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Effect test

Embodiment 1

[0030] Such as figure 1 Shown, a kind of manufacture method of low-temperature stable lead-acid storage battery, comprises:

[0031] S01, configure a sulfuric acid solution with a density of 1.10.

[0032] S02, add sodium lignosulfonate to the sulfuric acid solution until the sodium lignosulfonate is saturated in the sulfuric acid solution, and configure it as a solution for leaching acid. When configuring the solution, control the temperature of the sulfuric acid solution to be 50-80°C.

[0033] In the prepared solution, part of the sodium lignosulfonate is not dissolved in the solution, and when the temperature changes, the sodium lignosulfonate will be dissolved or precipitated to ensure that the acid bath is a saturated solution of sodium lignosulfonate.

[0034] S03, apply the prepared lead paste on the negative grid through the plate coating head to make a negative plate, transport the solution for acid rinsing configured in step S02 to the acid leaching roller, and le...

Embodiment 2

[0037] The implementation steps of Embodiment 2 and Embodiment 3 are the same as Embodiment 1, and the only difference is that the plates are produced in different time periods.

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Abstract

The invention discloses a method for making a low-temperature stable lead storage battery, which comprises the following steps: (1) configuring a sulfuric acid solution with a density between 1.05-1.15; (2) adding sodium lignosulfonate into the sulfuric acid solution until the lignin Sodium sulfonate is saturated in sulfuric acid solution, is configured to be used for the solution of leaching acid; (3) lead plaster is coated on the negative electrode grid to make negative plate, the solution that is used for leaching acid of step (2) configuration is transported (4) Carry out the curing and drying process on the negative electrode plate after acid leaching, and assemble it with the positive electrode plate and AGM separator after curing and drying to form an electrode group, and put it into the battery box to make (5) adding electrolyte to the battery case of the finished battery and then forming the finished battery to obtain a low-temperature stable lead storage battery. By using the method of the invention, the consistency between the surface and the interior of the pole plate is good, thereby improving the low-temperature performance of the countermeasure and its cycle life.

Description

technical field [0001] The invention belongs to the technical field of lead storage battery preparation, and in particular relates to a production method of a low temperature stable lead storage battery. Background technique [0002] In order to improve the performance of the battery, lead-acid batteries will add different kinds of additives to the positive and negative electrodes, such as carbon materials, organic expansion agents, conductive agents, stabilizers, etc. Although these additives occupy a small proportion in the lead paste, they can play an important role. Among them, the organic expansion agent is an indispensable one for the negative electrode. Lignin is the most widely used additive in organic expanders, which has an important impact on the low-temperature performance and cycle life of batteries. Lignin (sodium lignosulfonate) of different origins and structures will play different roles, significantly change the specific surface area and crystal morpholog...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/12H01M4/16H01M10/44
CPCH01M4/16H01M10/12H01M10/446Y02E60/10Y02P70/50
Inventor 许宝云王增君郭志刚李桂发刘玉周贤机姚秋实邓成智孔鹤鹏李雪辉柏丽莉
Owner TIANNENG BATTERY GROUP