Mixing apparatus for colloidal electrolyte, colloidal electrolyte and preparation method thereof

A colloidal electrolyte and mixing device technology, applied in mixers, chemical instruments and methods, mixers with rotary stirring devices, etc., can solve the problems of low storage capacity and low capacity of batteries, and achieve long discharge time and cycle life. Low, high-capacity effect

Inactive Publication Date: 2012-12-19
SHANDONG RUIYU BATTERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The colloidal electrolyte can slow down the shedding of the active material of the substrate and avoid the stratification of the electrolyte during the battery cycle, but its capacity is low
The Chinese patent document with application number 200810044335.8 discloses a colloidal electrolyte, including dilute sulfuric acid, silicon dioxide, hydroxylamine sulfate and tin dioxide. The diffusion of the battery has a longer cycle life, but the storage capacity of the battery is lower

Method used

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  • Mixing apparatus for colloidal electrolyte, colloidal electrolyte and preparation method thereof
  • Mixing apparatus for colloidal electrolyte, colloidal electrolyte and preparation method thereof
  • Mixing apparatus for colloidal electrolyte, colloidal electrolyte and preparation method thereof

Examples

Experimental program
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preparation example Construction

[0072] The present invention also provides a method for preparing the colloidal electrolyte described in the above technical solution, comprising the following steps:

[0073] A) adding sulfuric acid aqueous solution, trisodium citrate and sodium silicate to the tank body of the colloidal electrolyte mixing device described in the above technical scheme;

[0074] B) adding nano silicon dioxide to the raw material storage device of the colloidal electrolyte mixing device described in the above technical scheme;

[0075] c) Turn on the motor of the colloidal electrolyte mixing device described in the above technical solution, and obtain the colloidal electrolyte after stirring.

[0076] First, add sulfuric acid aqueous solution, trisodium citrate and sodium silicate into the tank of the colloidal electrolyte mixing device, add nano-silicon dioxide into the raw material storage device, turn on the motor, and the rotor rotates at a high speed under the action of the motor to gener...

Embodiment 1～3

[0086] Inject dilute sulfuric acid figure 1 In the mixing device shown, then add trisodium citrate and sodium silicate into it; add nano-silica into the raw material storage device, turn on the motor, first mix with a speed of 15m / s for 8min, and then mix at a speed of 40m / s Mix at a high speed for 25 minutes to obtain a colloidal electrolyte. The ratio of raw materials used in each embodiment is shown in Table 1.

[0087] Table 1 The ratio of raw materials used in Examples 1 to 3 of the present invention

[0088]

Embodiment 4

[0096] The colloidal electrolytes prepared in Examples 1-3 and Comparative Examples 1-3 were respectively assembled into batteries of model 6MF9, whose specifications were 12V, 9Ah.

[0097] The capacity test was carried out on the storage battery, and the results are shown in Table 2. Table 2 shows the capacity test results of the 6MF9 storage battery provided by the embodiment of the present invention and the comparative example.

[0098] The capacity test result of the 6MF9 accumulator that table 2 embodiment of the present invention and comparative example provide

[0099] Unit: Ah

[0100]

[0101] It can be seen from Table 2 that the battery assembled with the colloidal electrolyte provided by the present invention has better capacity at different discharge rates.

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Abstract

The invention provides a colloidal electrolyte, comprising 0.3 wt%-0.6 wt% of nano-silica, 0.02 wt%-0.7 wt% of sodium silicate, 0.01 wt%-0.3 wt% of trisodium citrate, and the balance being a sulfuric acid water solution. The invention also provides a mixing apparatus for the colloidal electrolyte. The invention also provides a preparation method of the colloidal electrolyte. The colloidal electrolyte provided by the invention is a jelly-like full-gel colloid, can not produce sulfuric acid-leakage phenomenon when being used for a storage battery, enables the storage battery to have the advantages of large electric capacity, long discharge time, long maintaining time of high electric capacity, good large-current discharge performance, strong charge acceptance, wide adaptive ambient temperature, long service life, etc. Experiments show that the storage battery has good capacity, good discharge performance, good capacity-recovery performance after overdischarge, good cycle life and relatively low internal resistance, when the colloidal electrolyte provided by the invention is used for the storage battery.

Description

technical field [0001] The invention belongs to the technical field of colloidal electrolytes, and in particular relates to a colloidal electrolyte mixing device, a colloidal electrolyte and a preparation method thereof. Background technique [0002] Lead-acid battery is a battery with lead and its oxides as electrodes and sulfuric acid solution as electrolyte. It has the advantages of low price, easy access to raw materials, suitable for large current discharge, and wide range of ambient temperature. Lead-acid batteries are generally divided into open-type lead-acid batteries and fully enclosed lead-acid batteries. Because open-type lead-acid batteries have the disadvantages of heavy maintenance, corrosion of surrounding equipment, and environmental pollution, valve-regulated sealed lead-acid batteries (VRLA) without maintenance , Valve-Regulated Lead Acid Battery) has been widely used. [0003] At present, AGM technology or gel (Gel) technology is generally used at home a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/10B01F7/22B01F27/91
CPCY02E60/126Y02E60/10
Inventor 刘毅赵恒祥
Owner SHANDONG RUIYU BATTERY
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