Can salt solutions be used to recycle lithium ion batteries?

Ojanen S, Lundström M, Santasalo-Aarnio A, et al. (2018) Challenging the concept of electrochemical discharge using salt solutions for lithium-ion batteries recycling. Waste Management 76: 242–249.

Which solution is best for self-discharge of lithium ion batteries?

Self-discharge proves unsatisfactory. 2. When using motionless salt solution, the best results are obtained with 10% NaCl solution. The residual voltage is 0.4 V after 24 h for LiMn 2 O 4 batteries; and 0.2 V after 48 h for LiCoO 2 batteries.

What happens if you submerge lithium-ion batteries into brine solution?

Direct submerging batteries into brine solution resulted as connector corrosion. The use of lithium-ion batteries (LIB) has grown significantly in recent years, making them a promising source of secondary raw materials due to their rich composition of valuable materials such as Co, Ni and Al.

How do you discharge a battery?

There are several ways to discharge batteries, but electrochemical discharge using salt solutions has proven to be simple, fast, and inexpensive. So far, there is no consensus in the literature on the time and concentration for the appropriate electrochemical solution for discharge.

How effective is NaCl solution in the discharge of lithium–cobalt and lithium–manganese batteries?

The results show that NaCl solution is very effective in the discharge of lithium–cobalt batteries and lithium–manganese batteries in terms of the retention of valuable components such as Co, Li, and Mn. By discharge in NaCl solution, the iron and aluminum compounds may be extracted prior to further disposal of the batteries.

How to discharge limn 2 O 4 batteries?

To discharge LiMn 2 O 4 batteries, we use two reactors with NaCl solution (2L), each containing 12 batteries. To discharge LiCoO 2 batteries, we use a reactor with 1 L NaCl, containing eight batteries. In these tests, the medium is immobile.