Can we recover copper & aluminum foils from spent lithium-ion batteries?

Recovering copper (Cu) and aluminum (Al) foils from spent lithium-ion batteries (LIBs) is a critical step in enhancing the sustainability of battery recycling and addressing the growing demand for these metals.

Is Leaching Copper foil sustainable?

The deep utilization of spent LIBs is a global challenge due to its increasingly widespread application in energy storage. In order to maximize the potential economic benefits in the reuse process, the sustainable process of leaching copper foil from spent LIBs and preparing nano copper was proposed.

Can Al & Cu foil be reused in new battery cathode materials?

However, further improvements in the purification method are recommended to enhance the cycling performance of new LIBs. These studies support the feasibility of direct reuse of Al and Cu foils. In addition, to reuse in new LIBs, Al foil can also be employed as impurity doped Al in battery cathode materials.

Why is copper foil used as a co-grinding agent?

The copper foil in the spent LIBs is used as the co-grinding agent, that is, the mechanochemical method is used to induce the occurrence of phase change without adding exogenous reagents, and water-soluble Li 2 O is produced, the leaching efficiency of Li reaches 94%, and other elements form precipitation .

What is the future of electrode recycling for Cu & Al foils?

With the number of spent LIBs projected to exceed 110 million tons by 2030, developing sustainable and efficient recycling technologies for Cu and Al foils is becoming ever more urgent . Electrode materials are composed of structures where Al/Cu elements are always mixed with the key elemental metals targeted for recovery.

Can recycled al foil be used as a supercapacitor?

Recycled Al foil could be employed as an active material in Al-ion batteries, thus facilitating the development of novel energy storage systems using spent LIBs. It can also be used as a supercapacitor substrate, promoting a zero-waste approach in recycling spent LIBs.