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Preparation method of lead-acid battery pbo nano powder

A lead-acid battery, nano-powder technology, applied in nanotechnology, battery recycling, lead oxide and other directions, can solve the problems of difficult commercial production and application, high process cost, unsuitable for lead-acid battery recycling and manufacturing process, etc. Achieve the effect of reducing production cost, simplifying process and shortening production cycle

Active Publication Date: 2017-10-13
杨春晓
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the above method for preparing Pb oxide powder, either the process cost is too high, or it is not suitable for the recovery and manufacturing process of the existing lead-acid battery, and it is difficult to be applied in commercial production.

Method used

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  • Preparation method of lead-acid battery pbo nano powder
  • Preparation method of lead-acid battery pbo nano powder
  • Preparation method of lead-acid battery pbo nano powder

Examples

Experimental program
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Effect test

Embodiment 1

[0059] The preparation method of lead-acid accumulator lead oxide (PbO) nanopowder of the present invention, its schematic flow sheet, as specification attached Figure 5 As shown, the steps include:

[0060] (1) Mix 0.1kg of lead powder (containing about 0.457mol Pb) with 0.11kg or 1.1kg or 98kg of 50% acetic acid solution (containing about 0.457mol or 0.9mol or 9 or 457mol or 800mol of acetic acid) solution, and React at 25°C for 1 or 30 minutes while stirring to dissolve the lead powder in the solution; wherein, this step can be supplemented with ultrasound; the unreacted part of the lead powder can be taken out and mixed with the next batch of lead powder;

[0061](2) At room temperature (25°C), feed 0.02kg or 0.2kg or 20kg (about 0.457mol or 4.57mol or 457mol) of CO into the solution of dissolved lead salt (lead acetate) 2 ;

[0062] (3) Filter the solution system after the reaction to obtain the precipitate and the solution respectively. Thermally decompose the precip...

Embodiment 2

[0065] The preparation method of the lead oxide nanopowder of the present invention, its schematic flow sheet, as description attached Figure 6 As shown, the steps include:

[0066] (1) Mix 0.1kg of lead powder (containing about 0.457mol Pb) with 0.11kg or 1.1kg or 98kg of 50% acetic acid solution (containing about 0.9mol or 9mol or 90mol of acetic acid) and mix it under room temperature (25°C) React for 1 or 30 minutes while stirring to dissolve the lead powder in the solution; wherein, this step can be supplemented with ultrasound; the unreacted part of the lead powder can be taken out and mixed with the next batch of lead powder.

[0067] (2) Add 0.028kg or 0.28kg or 28kg (about 0.457mol or 4.57mol or 457mol) of urea to the solution of dissolved lead salt (lead acetate), heat (25-99°C) to decompose the urea and allow the reaction to occur.

[0068] (3) Filter the solution system after the reaction to obtain the precipitate and the solution respectively. Heat and decompos...

Embodiment 3

[0071] The preparation method of the lead oxide nanopowder of the present invention, its schematic flow sheet, as description attached Figure 7 As shown, the steps include:

[0072] (1) Mix 0.1kg of lead powder (about 0.457mol Pb) with 0.11kg or 1.1kg of acetic acid (25%) + sodium acetate (25%) solution (about 0.79mol or 7.9mol of acetate), and React at room temperature (25°C) for 1 or 30 minutes while stirring to dissolve the lead powder in the solution; wherein, this step can be supplemented with ultrasound; the unreacted part of the lead powder can be taken out and mixed with the next batch of lead powder .

[0073] (2) Add 0.038kg or 11.4kg (about 0.457mol or 13.71mol) of sodium bicarbonate to the solution of dissolved lead salt (lead acetate), heat (30-99°C) to decompose the sodium bicarbonate and allow the reaction to occur.

[0074] (3) Filter the solution system after the reaction to obtain the precipitate and the solution respectively. Heat and decompose the preci...

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Abstract

The invention discloses a preparation method of PbO nanometer powder for lead-acid battery, comprising the steps of: (1) reacting lead-containing raw materials with reactant A to generate water-soluble main product 1; (2) main product 1 and reactant B react to generate the main product 2 precipitation; (3) decompose the main product 2 to obtain PbO nanopowder. The present invention makes the recovery and production process environmentally friendly, low energy consumption, shortens the production cycle, and makes the prepared PbO nanopowder more conducive to the improvement of the performance of the process product, and the reactant A or / and B in the present invention can be all Or part of the realization of recycling, thereby greatly reducing production costs.

Description

technical field [0001] The invention relates to the preparation of a PbO (lead oxide) nano powder, in particular to a preparation method of the PbO nano powder of a lead-acid storage battery. Background technique [0002] Lead-acid storage battery has a history of more than 100 years since its invention, and it is still the most widely used product in secondary batteries with the largest market share (accounting for about 80%). Today its global market demand is still increasing at an annual rate of about 10%. With the continuous expansion of the number and fields of lead-acid battery applications, there are currently two major issues that have received high attention. One is the green recycling of waste lead-acid batteries, and the other is the performance of lead-acid batteries, such as specific energy and specific power. , service life, etc. need to be further improved. [0003] In terms of recycling waste lead-acid batteries, the early methods of recycling lead mainly i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G21/06B82Y40/00H01M10/54
CPCY02W30/84
Inventor 杨春晓
Owner 杨春晓
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