Lead recovery method and device for perovskite battery

A perovskite battery and lead recovery technology, applied in the field of photovoltaics, to achieve the effect of simple structure, avoiding lead pollution, and improving effective utilization

Active Publication Date: 2019-07-02
KUNSHAN GCL OPTOELECTRONIC MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Based on this, it is necessary to provide a lead recovery method for perovskite batteries in view of the problem that there is no lead recovery for perovskite batteries in the prior art

Method used

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  • Lead recovery method and device for perovskite battery
  • Lead recovery method and device for perovskite battery
  • Lead recovery method and device for perovskite battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Break the perovskite cell into about 1cm 3 of pieces.

[0072] 3000 g of the above fragments were soaked in 2 L soaking solution (DMSO) at 80° C. for 6 h. Then filter to obtain lead-containing separation liquid.

[0073] Add 0.10 g of sodium sulfide to 2 L of lead-containing separation liquid, precipitate for 0.5 h, let stand, and filter to obtain 0.30 g of PbS solid.

[0074] The lead recovery was calculated to be 97%.

Embodiment 2

[0076] It is basically the same as Example 1, except that 2L of lead-containing separation solution is poured into the electrolysis mechanism, and then the conductive electrolyte choline chloride is added thereto. The lead foil was used as the working electrode, the carbon electrode was used as the counter electrode, and the working electrode was connected to a voltage of -0.9V.

[0077] Metallic lead is recovered at the cathode. The recovery rate of lead is 97%. The concentration of Pb in the electrolyte drops below 1% of the original concentration.

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Abstract

The invention relates to a lead recycling method for a perovskite battery. The lead recycling method comprises the following steps that the perovskite battery is smashed to form fragments; the fragments are soaked in a soaking solution and subjected to solid-liquid separation, and thus a leady separation solution is obtained; the soaking solution comprises an organic solvent which can dissolve perovskite materials; and chemical precipitation operation or electrolysis operation is conducted on the leady separation solution so as to obtain a leady solid body. According to the lead recycling method for the perovskite battery, on one hand, lead is recycled, therefore lead pollution is avoided, and the environment is protected; on the other hand, the recycled lead can be changed into valuable matter from a waste material, and thus the effective utilization of resources is improved. In addition, the lead recycling method for the perovskite battery is simple and practicable, and beneficial for application to a mass industry. The invention further provides a lead recycling device for the perovskite battery.

Description

technical field [0001] The invention relates to the field of photovoltaic technology, in particular to a lead recovery method and device for a perovskite battery. Background technique [0002] Perovskite cells have become a research hotspot due to their excellent photoelectric properties. [0003] At present, the perovskite materials in perovskite cells are mainly ABX 3 , where A is MA or FA, B is Pb, X is Cl, Br or I and other halogens and pseudohalogens. Pb is a toxic heavy metal, and with the extensive use of perovskite batteries, it will bring certain environmental risks. Therefore, a lead recovery method is necessary. [0004] However, there is currently no lead recycling method for perovskite cells. Contents of the invention [0005] Based on this, it is necessary to provide a lead recovery method for perovskite batteries to solve the problem of no lead recovery for perovskite batteries in the prior art. [0006] A lead recovery method for a perovskite battery, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B7/00C22B13/00C25C1/18H01M10/54
CPCC22B7/006C22B13/045C25C1/18H01M10/54Y02P10/20Y02W30/84
Inventor 田清勇范斌
Owner KUNSHAN GCL OPTOELECTRONIC MATERIAL CO LTD
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