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A kind of lead-calcium internalization into colloidal electrolyte and preparation method thereof

A technology of colloidal electrolyte and internalization, applied in the field of electrolyte, can solve the problems of difficult control of battery consistency, insufficient dissolution of components, poor colloidal stability, etc., and achieve easy operation, simple preparation method, and slow capacity decay Effect

Active Publication Date: 2020-06-05
蚌埠弘景科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the colloidal electrolyte prepared purely by ordinary mechanical stirring method is prone to insufficient dissolution of various components, resulting in uneven electrolyte, waste of raw materials, poor colloidal stability, and prone to stratification. It is difficult to control the consistency of the battery made of liquid, and it is difficult for each component to fully play its role in the battery

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of lead calcium internalized into colloidal electrolyte, including the following raw materials in weight percentage: ammonium metavanadate 2%, iron nitrate 3%, erbium nitrate 1%, borax 1%, sodium acetate 2%, lithium tetraborate 0.5%, hydrochloric acid 10%, sodium citrate 3%, titanium dioxide 1%, Pingpingjia 1%, stannous sulfate 0.1%, sodium naphthenate 1%, the rest water.

[0019] A preparation method for internalizing lead and calcium into a colloidal electrolyte, comprising the following steps: (1) adding ammonium metavanadate, stannous sulfate, sodium acetate, ferric nitrate and erbium nitrate into water at 70°C, stirring, mixing and dispersing evenly, and then Add borax and sodium citrate to it, and stir for 10 minutes at a rotational speed of 800r / min to obtain a mixed solution; (2) Add the resultant from the previous step to the reactor, raise the temperature to 80°C, and then add it dropwise and add it The dropping time is 10 minutes, after stirring and re...

Embodiment 2

[0021] A kind of lead calcium is internalized into colloidal electrolyte, comprises the raw material of following percentage by weight: ammonium metavanadate 5%, ferric nitrate 7%, erbium nitrate 5%, borax 4%, sodium acetate 4%, lithium tetraborate 1%, hydrochloric acid 25%, sodium citrate 6%, titanium dioxide 4%, Pingpingjia 3%, stannous sulfate 1%, sodium naphthenate 3%, and the rest water.

[0022] A preparation method for internalizing lead and calcium into a colloidal electrolyte, comprising the following steps: (1) adding ammonium metavanadate, stannous sulfate, sodium acetate, ferric nitrate and erbium nitrate into water at 80°C, stirring, mixing and dispersing evenly, and then Add borax and sodium citrate to it, and stir for 20 minutes at a rotational speed of 1000r / min to obtain a mixed solution; (2) Add the resultant from the previous step to the reactor, raise the temperature to 85°C, and then add Pingpingjia dropwise, Pingpingjia The dropping time is 10 minutes, af...

Embodiment 3

[0024] A kind of lead-calcium internalized into colloidal electrolyte, including the following raw materials in percentage by weight: ammonium metavanadate 3%, iron nitrate 5%, erbium nitrate 2%, borax 2%, sodium acetate 3%, lithium tetraborate 0.56%, hydrochloric acid 18%, sodium citrate 4%, titanium dioxide 2%, Pingpingjia 1.3%, stannous sulfate 0.3%, sodium naphthenate 2%, and the rest water.

[0025] A preparation method for internalizing lead and calcium into a colloidal electrolyte, comprising the following steps: (1) adding ammonium metavanadate, stannous sulfate, sodium acetate, ferric nitrate and erbium nitrate into water at 75°C, stirring, mixing and dispersing evenly, and then Add borax and sodium citrate to it, and stir for 18 minutes at a speed of 900r / min to obtain a mixed solution; (2) Add the resultant from the previous step to the reactor, raise the temperature to 82°C, and then add it dropwise The dropwise addition time is 10min. After stirring for 30min, con...

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Abstract

The invention discloses a lead-calcium internal formation colloid electrolyte. The lead-calcium internal formation colloid electrolyte comprises the following raw materials based on percent by mass: 2-5% of ammonium metavanadate, 3-7% of ferric nitrate, 1-5% of erbium nitrate, 1-4% of borax, 2-4% of sodium acetate, 0.5-1% of lithium tetraborate, 10-25% of hydrochloric acid, 3-6% of sodium citrate,1-4% of titanium dioxide, 1-3% of peregal, 0.1-1% of tin sulfate and 1-3% of sodium naphthenate with the balance being water. By the lead-calcium internal formation colloid electrolyte, the cycle property of the battery can be effectively improved, and the lead-calcium internal formation battery is slow in initial capacity attenuation and long in lifetime; and the lead-calcium internal formationcolloid electrolyte is good in stability, the preparation method is simple and is easy to operate, and industrial production is facilitated.

Description

technical field [0001] The invention relates to an electrolytic solution, in particular to a colloidal electrolytic solution internalized by lead and calcium and a preparation method thereof. Background technique [0002] Since the country canceled the production of lead-antimony-cadmium lead-acid batteries at the end of 2013, most lead-acid battery manufacturers have changed from lead-antimony-cadmium externalization to lead-calcium internalization batteries to comply with the requirements of national policies. Although the lead-calcium battery overcomes the problem of fast grid corrosion in the lead-antimony-cadmium battery, it also has the disadvantages of rapid initial (first 50 cycles) capacity decay, short life, and easy softening and falling off of the active material, especially when the battery is deep Discharge, prompting a sharp decline in battery life. [0003] The uniformity of the electrolyte and the thixotropy and stability of the colloid play a vital role in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/10
CPCH01M10/10Y02E60/10
Inventor 李欣
Owner 蚌埠弘景科技有限公司
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