Method for recovering and regenerating refused battery critical material

Abstract

The invention is concerned with the invalidation reason for capacity loss of used rechargeable batteries. It reaches the feasibility to resume the capability of filling and discharging of electricity content, voltage flat and reused life, and a new way to callback and rebirth the content and electrochemistry capability of anode and cathode of used battery and afford a effective method, i.e. nano-method. Take off active matter from the anode and cathode of used battery by vibration or peel-off with machine. Wash the pole with distilled water and carry with pump-filtration till the filtrate is neutral, dry in vacuum to rebirth the electrochemistry capability of pole. This invention reduces the pollution of used rechargeable batteries to environment and is suitable to low cost of rechargeable batteries and its key material at a certain extent with obvious effect and easy operation.

Description

technical field The invention relates to the technical field of recovery and recycling of positive and negative electrode materials in waste secondary batteries. Background technique With the rapid development of my country's economy, the effective and rational use of resources and environmental governance are imminent. my country is a big country in the production and consumption of primary batteries and secondary batteries. The rapid growth of various portable electronic products has formed a huge battery market. From the perspective of my country's energy strategy and security, the development of electric vehicles, especially hybrid vehicles, has been included in the relevant industrialization plan during the "Eleventh Five-Year Plan" period. The market share of power batteries is gradually increasing, and the resulting shortage of resources and environmental problems are becoming more and more serious. Therefore, it is more urgent to carry out the recovery, regenerati...

AI Technical Summary

Problems solved by technology

At present, the recycling rate of waste batteries in my country is less than 2%, which is far lower than the 50% recycling rate in developed countries.

So far, although a series of research work has been carried out on the recycling and regeneration technology of waste secondary batteries at home and abroad, and some progress has been made, there are still many technical bottlenecks.

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