新能源汽车电池中重金属的提取与处理

Extraction and Treatment of Heavy Metals in New Energy Vehicle Batteries

在“十三五”开局之年,国家对环境保护提出了更高的要求,中国的新能源汽车产业也由缓慢发展阶段进入到了加速发展阶段,为了鼓励大家使用新能源汽车,国家出台了一系列政策,同时中央财政部也安排了专项资金,加大了对购买新能源汽车的补贴力度,使得人们对新能源汽车的购买欲增强,而且许多城市的出租车和公交车也都响应国家政策更换成了新能源电动汽车。新能源汽车的增加虽然使我们的空气质量大大改善,但是我们能否高效处理新能源汽车的电池成为我们面临的一个重大问题。本文首次将共晶溶剂技术、N-甲基吡咯烷酮、超临界CO萃取技术和二次再生技术结合起来处理电池中的重金属和电池的电解液,从而可以实现处理过程控制性强,操作性强和回收率高。

In the first year of the “Thirteenth Five-Year Plan”,the country put forward higher requirements for environmental protection.China’s new energy vehicle industry has also entered the accelerated development stage from the slow development stage.In order to encourage everyone to use new energy vehicles,the state has issued a series of policies,and the Central Ministry of Finance has also arranged special funds to increase subsidies for the purchase of new energy vehicles,making people more eager to buy new energy vehicles.And taxis and buses in many cities have also changed to new energy electric vehicles in response to national policies.Although the increase of new energy vehicles has greatly improved our air quality,whether we can efficiently handle the batteries of new energy vehicles has become a major problem we face.In this paper,eutectic solvent technology,N-methylpyrrolidone,supercritical COextraction technology and secondary regeneration technology are combined for the first time to treat heavy metals in the battery and the electrolyte of the battery,so as to achieve strong process control,strong operability and high recovery rate.