Silicate electrolyte for battery and preparation method thereof

An electrolyte and silicate technology, applied in lead-acid batteries and other directions, can solve the problems of irreversible damage to personnel and the environment, difficult recovery of electrolyte, poor battery performance, etc., to achieve good infiltration performance, no charge-discharge memory effect, Use safe effects

Active Publication Date: 2011-07-13
李海明
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional lead-acid batteries currently on the market usually have poor performance and short life due to the sulfation of the electrolyte during use, and the specific energy is low during use, the battery self-discharge is large, and the capacity of the low-temperature environment drops sharply. The water is serious, and at the same time, there may be a flash explosion of hydrogen evolution, and the safety performance is poor
At the same time, because traditional batteries mostly use lead, mercury, and cadmium alloys as plates, frequent maintenance is required to prevent the vulcanization of battery plates, resulting in acid corrosion, acid mist pollution, and toxic pollution of mercury and cadmium produced after vulcanization of the plates. It can cause irreversible damage to personnel and the environment. At the same time, because the waste electrolyte is not easy to recycle, the lead sulfate in it will cause great pollution and damage to the soil and water environment.

Method used

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  • Silicate electrolyte for battery and preparation method thereof
  • Silicate electrolyte for battery and preparation method thereof
  • Silicate electrolyte for battery and preparation method thereof

Examples

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preparation example Construction

[0019] A preparation method of silicate electrolyte for storage battery, comprising the following steps:

[0020] a) Silica plus deionized water is stirred and dispersed at high speed, and dilute sulfuric acid is added to mix and stir to react;

[0021] b) Add ammonium phosphate, ammonium persulfate and potassium sulfate, mix and stir to react;

[0022] c) Add polyacrylamide, dispersant, stabilizer and catalyst, stir in a sealed environment at normal temperature and pressure, and catalyze the reaction for 12-24 hours;

[0023] d) After the catalysis is completed, the mixed liquid is magnetized to obtain the product of the present invention.

[0024] Further, the basic salt is at least one of basic salts of metal sodium and potassium.

[0025] Further, the dispersion stabilizer is one of glycerol, polyvinyl alcohol and fatty alcohol polyoxyethylene ether (AEO).

[0026] Further, the stabilizer is at least one of sodium carboxymethylcellulose and vanillin.

[0027] Further, ...

Embodiment 1

[0032] Add deionized water to 10% silica and stir at high speed to disperse; after the dispersion is uniform, add 40% sulfuric acid, stir for reaction, then add 1% ammonium phosphate, 2% ammonium persulfate and 1.5% potassium sulfate, mix and stir for reaction; After the reaction is completed, add 1.5% polyacrylamide, 1% polyvinyl alcohol, 3% sodium carboxymethyl cellulose and 4% silicone oil, stir in a sealed environment at normal temperature and pressure, catalyze the reaction for 24 hours, and then undergo 8000 Gauss magnetization treatment for 10 seconds , to obtain the product of the present invention.

Embodiment 2

[0034] Add deionized water to 10% silica and stir at high speed to disperse; after the dispersion is uniform, add 45% sulfuric acid, stir for reaction, then add 1% ammonium phosphate, 2% ammonium persulfate and 1% potassium sulfate, mix and stir for reaction; After the reaction is completed, add 1% polyacrylamide, 1% glycerol, 2% sodium carboxymethylcellulose and 4% silane, stir in a sealed environment at normal temperature and pressure, catalyze the reaction for 12 hours, and then undergo 10,000 Gauss magnetization treatment for 15 seconds , to obtain the product of the present invention.

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Abstract

The invention discloses a silicate electrolyte for a battery, and the electrolyte comprises the following components by weight percent: 20-45% of sulfuric acid, 1-2% of ammonium phosphate, 10-15% of silicon dioxide, 2-3% of ammonium persulfate, 1-1.5% of sodium sulfate, 1-1.5% of potassium sulfate, 1-2% of polyacrylamide, 1-2% of dispersant, 2-3% of stabilizer, 3-5% of catalyst and the balance ofdeionized water, wherein the catalyst is one of basic salt, silane and silicone oil. The silicate electrolyte has the advantages of good performance, environment friendliness and favorable industrialapplication prospect.

Description

technical field [0001] The invention relates to a silicate electrolyte, in particular to a silicate electrolyte for storage batteries. Background technique [0002] Since the advent of lead-acid batteries, they have been widely used due to their high electromotive force, small internal resistance, reliable performance and low price. However, the traditional lead-acid batteries currently on the market usually have poor performance and short life due to the sulfation of the electrolyte during use, and the specific energy is low during use, the battery self-discharge is large, and the capacity of the low-temperature environment drops sharply. The water is serious, and at the same time, there may be a flash explosion of hydrogen evolution, and the safety performance is poor. At the same time, because traditional batteries mostly use lead, mercury, and cadmium alloys as plates, frequent maintenance is required to prevent the vulcanization of battery plates, resulting in acid cor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/10
CPCY02E60/126Y02E60/10
Inventor 李海明李佳
Owner 李海明
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