Preparation method of lead-acid storage battery electrolyte

A lead-acid battery and electrolyte technology, applied in the direction of lead-acid battery, lead-acid battery construction, acid electrolyte, etc., can solve the problems of low battery capacity, poor electrolyte stability, poor thixotropy, etc., to achieve large battery capacity and low cost Effect of low and good flow regulation

Inactive Publication Date: 2018-10-23
SUZHOU SICHUANGYUANBO ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The electrolyte prepared by the former has disadvantages such as poor stability, poor thixotropy, easy hydration, and easy cracking; the latter is expensive, and the performance of the electrolyte depends largely on the utilization of gas phase SiO2, and the use of this colloid The perfused battery is prone to problems such as low battery capacity, large internal resistance, and easy hydration of the colloid

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Heat 100-150 parts by weight of deionized water to 60°C; add 20 parts by weight of potassium hydroxide into the deionized water, stir while adding potassium hydroxide, and stir for at least 15 minutes to form a slurry.

[0034] Add 100 parts by weight of silicon powder to the slurry sequentially and slowly within 5 minutes, still adopting the process of stirring while adding, and mixing into S i o 2 KOH slurry; 100 parts by weight of deionized water heated by 4 containers are used respectively; stand-by; cobalt sulfate, magnesium sulfate, aluminum sulfate, sodium stannate of 15 parts by weight are respectively placed in the above-mentioned 4 containers, to be dissolved Then stir into a solution; add the solution that has just been mixed in 4 containers to S i o 2 In the KOH slurry, stir while adding, and stir for at least 20 minutes; cool the evenly stirred glue to room temperature, and set aside.

[0035] The electrolyte consists of the following raw materials in pa...

Embodiment 2

[0045] Heat 150 parts by weight of deionized water to 80°C; add 30 parts by weight of potassium hydroxide into the deionized water, stir while adding potassium hydroxide, and stir for at least 15 minutes to form a slurry.

[0046] The electrolyte consists of the following raw materials in parts by weight:

[0047] 98% concentrated sulfuric acid 30

[0048] Deionized water 50

[0049] The above glue 15

[0050] Polyacrylamide 1

[0051] Carbon black 0.7

[0052] Ultrafine glass fiber 0.5

[0053] Cobalt sulfate 1.5.

[0054] Mix the concentrated sulfuric acid in the formulated amount and the appropriate amount of deionized water, stir and mix until the temperature drops to room temperature, add the carbon black and cobalt sulfate in the formulated amount, stir and mix evenly; Add the formula amount of the glue, stir and mix evenly, electrolyze for 8 minutes to obtain the electrolyzed mixture; add the formula amount of polyacrylamide into the remaining deionized water, sti...

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PUM

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Abstract

The invention discloses a preparation method of lead-acid storage battery electrolyte. The method has the advantages that the process is simple; the application is facilitated; the cost is low; high water preservation capability and good flowing regulating performance are realized; the electrolyte moisture loss of the battery in the use process can be effectively reduced, so that the circulation life of a lead-acid storage battery is prolonged. Through the reasonable preparation process, the electrolyte forms a crystal colloid shape; water separation and acid leakage are avoided; the battery capacitance is great; the internal resistance is small; the high-low-temperature environment resistant performance is excellent; good re-discharging performance is realized; the use is safe; the service life of the lead-acid colloid storage battery is prolonged; the use safety performance is effectively improved.

Description

technical field [0001] The invention relates to the field of battery materials, in particular to a method for preparing an electrolyte for a lead-acid storage battery. Background technique [0002] Storage battery was invented by Plante in 1859 and has a history of more than 100 years. 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 productive and widely used secondary batteries in chemical power sources. However, when lead-acid batteries are connected to the circuit and discharged, electrons are released from the anode (negative plate), and the formed Pb2+ ions immediately react with SO42- ions. Insoluble sulfates are deposited on the electrode surface. [0003] Lead-acid batteries have been widely ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/08H01M10/12
CPCH01M10/08H01M10/12H01M2300/0011Y02E60/10Y02P70/50
Inventor 不公告发明人
Owner SUZHOU SICHUANGYUANBO ELECTRONICS TECH CO LTD
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