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Method for waste lead-acid cell resourcization and lead-acid cell cyclic production

A lead-acid battery and a production method technology are applied in the field of recycling waste lead-acid batteries and the recycling production of lead-acid batteries, which can solve problems such as endangering human health, lack of environmental protection awareness, environmental pollution, etc., and achieve pollution elimination and retention. The effect of usability

Inactive Publication Date: 2009-07-22
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some small recycled lead factories do not have the qualifications to dispose of waste batteries. In addition, some small purchasers generally lack awareness of environmental protection. There is a serious risk of environmental pollution, which may seriously endanger human health

Method used

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  • Method for waste lead-acid cell resourcization and lead-acid cell cyclic production

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Effect test

Embodiment Construction

[0018] The resourceful separation of waste and old lead-acid battery components of the present invention and the method for new lead-acid battery production are:

[0019] 1. Disassembly of the battery

[0020] Use a machine to cut open the plastic case of the battery that has drained the residual electricity, pour out the electrolyte sulfuric acid, and take out the electrodes. Filter out the solids in the sulfuric acid, adjust the concentration and remove impurities, and use it directly in new batteries. The plastic case is crushed and granulated to produce new battery cases.

[0021] 2. Separation of positive and negative electrodes

[0022] Generally, the positive and negative plates of lead-acid batteries are connected together, so the two can be easily separated by mechanical means. Rinse off the separator components attached to the electrode surface with water flow.

[0023] 3. Treatment of pole pieces and regeneration of new electrode materials

[0024] Place the po...

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Abstract

The invention discloses a method for circularly producing lead acid batteries, aiming at thoroughly eliminating possible hazard of the lead acid battery on environment and leading the lead acid battery to be continuously useful in social life without causing negative effect. The method includes: the positive and negative plates of old and useless batteries are separated by a mechanical method, and then the positive and negative plates are subjected to electrochemical treatment, thus obtaining raw material for producing new lead acid battery and achieving the circular production of the lead acid battery including disassembly of the old and useless lead acid battery, purification of sulphuric acid electrolyte, the production of lead metal and lead dioxide by electrolyzing lead sulfate, the separation and regeneration of lead alloy as well as the production of new lead acid battery by the produced lead alloy, lead and lead dioxide. In theory, by the proposal, the raw material can be totally reused, thus achieving the aim of circularly producing the lead acid battery.

Description

Technical field [0001] The present invention relates to a recycling production method of lead-acid batteries. Its purpose is to eliminate the possible environmental hazards of used lead-acid batteries from the source, so that cheap and high-quality lead-acid batteries can continue to play a role in social life without to any lead contamination issues. Background technique [0002] Lead-acid battery is a rechargeable battery that is cheap, easy to maintain, and can meet a variety of user needs. It has been widely used in uninterruptible power supplies, battery cars, and car starting power supplies. Lead-acid batteries contain a large amount of lead that is harmful to the environment and human body, as well as some highly corrosive sulfuric acid. However, because lead-acid batteries are cheap, they have been used in electric bicycles in recent years and have been used for a long time. It is impossible to be replaced by other rechargeable batteries and is a typical industry wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/54
CPCY02E60/12Y02W30/84
Inventor 雷立旭
Owner SOUTHEAST UNIV
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