Revolutionary Lithium Recycling Process Promises High Recovery Rates

A groundbreaking recycling method developed by JX Metals Circular Solutions in Tsuruga, Japan, has the potential to reclaim up to 90 percent of lithium from electric vehicle batteries, as reported by NHK World.

Current Recycling Challenges

This innovative approach marks a significant improvement over existing industry standards, where current recycling methods often yield recovery rates below 50 percent. Such inefficiencies drive up the demand for newly sourced lithium, exacerbating resource scarcity.

In traditional recycling processes, a substantial amount of lithium is lost during the smelting of battery components, leading to a considerable waste of this critical resource. This loss poses serious financial and logistical challenges for the electric mobility sector both in Europe and globally.

The New Recycling Process

The novel technique begins with mechanically shredding old batteries, followed by a controlled combustion of the remaining materials. This process produces a metal-rich substance known in the recycling industry as "black mass."

Next, a sophisticated hydrometallurgical process is employed to chemically wash and precisely separate the valuable components from the black mass. A key advancement in this multi-step process is the use of pure lithium hydroxide as a central solvent.

Environmentally Friendly Approach

What sets this method apart is its avoidance of conventional, environmentally harmful chemicals, such as aggressive sodium hydroxide, during filtration. This results in a closed chemical loop within the facility, eliminating the need for costly external chemical additives.

This environmentally conscious approach not only boosts the recovery rate of the scarce resource to the impressive 90 percent but also reduces carbon dioxide emissions by over 40 percent, according to Techspot.

Economic Implications for Europe

The economic significance of this technological advancement is considerable, particularly given the tightening regulations imposed by the European Union. Starting in 2027, the EU's battery regulation mandates a lithium recovery rate of 50 percent, which will increase to a challenging 80 percent by 2031.

Current pyrometallurgical methods cannot reliably meet these stringent requirements. However, the new Japanese process demonstrates that such recovery targets are not only achievable but can be exceeded, thereby intensifying the pressure on European recycling companies to adapt their facilities to similar efficient hydrometallurgical processes.

Infrastructure Challenges

Despite the promising theoretical efficiency of this new recycling method, significant practical hurdles remain regarding the collection of used batteries. Reports indicate that, in many regions, including technologically advanced Japan, only a small fraction of discarded lithium-ion batteries actually reaches designated recycling facilities.

Many spent batteries are lost through unregulated international exports, forgotten in private garages, or mistakenly sent to regular scrap yards. Without a comprehensive and legally mandated return infrastructure, even the most advanced recycling facilities risk operating without the necessary input materials.

Looking ahead, JX Metals Circular Solutions plans to establish its first commercial production facility by 2027, aiming to achieve an impressive processing capacity of up to 30,000 tons annually by 2035.