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A kind of waste lead-acid battery recycling method

A technology of lead-acid battery and recycling method, which is applied in the direction of lead-acid battery, battery recycling, waste collector recycling, etc. It can solve problems such as backward technology, increase environmental protection, and large capital, and achieve simple and convenient operation and environmental protection Effect

Active Publication Date: 2022-07-19
汉和新能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] To sum up, most of the waste lead-acid battery recycling processes in my country are backward, with huge investment, large area, low safety factor, high energy consumption, acid leakage and large amount of waste water discharge are easy to occur, which are harmful to human health. Physical and mental health and the environment are likely to cause greater pollution, increasing the factors of environmental instability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for recycling waste and old lead-acid batteries, comprising the following steps:

[0029] S1. Classify the lead-acid batteries that need to be recycled according to the separators assembled inside, and divide them into lead-acid batteries with AGM separators and lead-acid batteries without AGM separators;

[0030] S2. Use a digital multimeter to measure the open circuit voltage of the lead-acid battery to be recycled;

[0031] S3. The lead-acid battery with the AGM separator with the open circuit voltage of 0V is short-circuited and connected, and the treatment agent is added to adjust until the electrolyte is neutral;

[0032] S4. Recover battery plates, grids, and products from treatment chemicals and electrolytes.

[0033] The treatment agent is prepared from the following raw materials in parts by weight: 10 parts of sodium silicate, 24 parts of sodium carbonate, 13 parts of potassium carbonate, and 53 parts of deionized water.

[0034] The sodium silicat...

Embodiment 2

[0037] A method for recycling waste and old lead-acid batteries, comprising the following steps:

[0038] S1. Classify the lead-acid batteries that need to be recycled according to the separators assembled inside, and divide them into lead-acid batteries with AGM separators and lead-acid batteries without AGM separators;

[0039] S2. Use a digital multimeter to measure the open circuit voltage of the lead-acid battery to be recycled;

[0040] S3. The lead-acid battery without AGM separator with an open circuit voltage of 0V is added with a conditioning treatment agent to adjust until the electrolyte is neutral;

[0041] S4. Recover battery plates, grids, and products from treatment chemicals and electrolytes.

[0042] The treatment agent is prepared from the following raw materials in parts by weight: 10 parts of sodium silicate, 24 parts of sodium carbonate, 13 parts of potassium carbonate, and 53 parts of deionized water.

[0043]The sodium silicate contained 30 wt% silica...

Embodiment 3

[0046] A method for recycling waste and old lead-acid batteries, comprising the following steps:

[0047] S1. Classify the lead-acid batteries that need to be recycled according to the separators assembled inside, and divide them into lead-acid batteries with AGM separators and lead-acid batteries without AGM separators;

[0048] S2. Use a digital multimeter to measure the open circuit voltage of the lead-acid battery to be recycled;

[0049] S3. The positive and negative electrodes of the lead-acid battery with the AGM separator and the lead-acid battery without the AGM separator whose open circuit voltage is not 0V are connected to the discharge device, the inverter, and the electronic components to form a circuit, making full use of the The residual electric energy of the battery is used by the electronic components through the inverter;

[0050] S4. When discharged to 0V, the lead-acid battery with AGM separator is short-circuited, and the treatment agent is added to adju...

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PUM

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Abstract

The invention discloses a method for recycling waste and used lead-acid batteries, comprising the following steps: S1. Classifying the lead-acid batteries to be recycled according to the separators assembled inside, into lead-acid batteries containing AGM separators, lead-acid batteries not containing AGM separators Lead-acid battery with AGM separator; S2, measure the open-circuit voltage of the lead-acid battery to be recycled; S3, short-circuit connection of the lead-acid battery with AGM separator with an open-circuit voltage of 0V, add treatment chemicals to adjust until the electrolyte is neutral; open circuit A lead-acid battery with a voltage of 0V without an AGM separator is added with a conditioning treatment agent to adjust until the electrolyte is neutral; S4, recover the battery electrode plate, grid and the product of treatment agent and electrolyte. The waste lead-acid battery recycling method of the present invention can effectively recycle the waste lead-acid battery in an environment-friendly manner, effectively reuse the waste lead-acid battery waste, and protect the environment.

Description

technical field [0001] The invention relates to the technical field of resource utilization of waste and used lead-acid batteries, in particular to a method for recycling waste and used lead-acid batteries. Background technique [0002] Since the concept of circular economy came into being, developed countries in the west have successively regarded building a circular economy and building a circular society as an integrated goal of economic and social development, and proposed to reduce material consumption and pollution emissions exponentially while promoting economic growth. , which is the essence of improving resource productivity. [0003] Lead-acid battery is a kind of original mobile power source, and batteries exist wherever there is electricity (defense equipment, equipment, microelectronics, various integrated machinery, automobiles and communications, etc.). At the same time, lead-acid batteries are also the largest and most widely used power source among all type...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/54H01M10/06
CPCH01M10/54H01M10/06Y02W30/84
Inventor 田泽狄
Owner 汉和新能源有限公司