锂离子电池回收 - 回收有价值的金属

lithium-ion Battery Recycling – Recovering the Valuable Metals

锂离子电池回收 - 回收有价值的金属

The demand for lithium-ion batteries being produced for use in consumer electronics and electric vehicles has exploded in recent years.  This trend is expected to continue as more and more states are pushing, and in some cases legislating the move to all-electric cars in the not-too-distant future. Ultimately this will create a growing need for technologies to recover and recycle the materials used in these batteries.  Metals used in lithium-ion batteries are both valuable and toxic.  This raises the question of how the metals in these batteries can be safely recovered and reused.

近年来，消费电子产品和电动汽车对锂离子电池的需求呈爆炸式增长。随着越来越多的州正在推动，在不远的将来，在某些情况下，这一趋势将继续下去。在某些情况下，将立法转向全电动汽车。最终，这将导致对回收和回收这些电池中使用的材料的技术的需求不断增长。锂离子电池中使用的金属既贵重又有毒。这就提出了如何安全地回收和再利用这些电池中的金属的问题。

 Jiakai Zhang and Gisele Azimi in the Department of Chemical Engineering and Applied Chemistry at the University of Toronto, have been investigating the use of Supercritical CO₂ along with several key modifiers to enhance the recovery of these metals.  Their study “develops a supercritical fluid extraction process using supercritical CO₂ solvent with tributyl phosphate–nitric acid and hydrogen peroxide adduct to recover the four metals from the LIBs of electric vehicles.”

多伦多大学化学工程与应用化学系的Jiakai Zhang和Gisele Azimi一直在研究超临界二氧化碳和几种关键改性剂的使用，以提高这些金属的回收率。他们的论文“开发了一种超临界流体萃取工艺，使用超临界CO₂溶剂、磷酸三丁酯-硝酸和过氧化氢加合物，从电动汽车的锂离子电池中回收四种金属”报道了显著的研究成果。

 These university research scientists acquired commercially available SF equipment from Supercritical Fluid Technologies (SFT).  SFT performed a few minor modification to the standard 500ml base system to optimize it for the specialized needs of their application.

这些大学研究科学家从超临界流体技术公司（SFT）获得了市面上可用的SF设备。SFT对标准500mL基础系统进行了一些小的修改，以优化其应用程序的特殊需求。