25 Jan '18, 5pm

Researchers develop energy-efficient process to recycle Li-ion battery cathodes #BelugaSolar

Illustration of the recycling and regeneration procedure. Shi et al. Click to enlarge. This approach can be widely used to recycle and regenerate LiCoO2 cathodes on a large scale, the researchers said, and can be potentially applied to other types of cathode materials in LIBs such as NMC, a popular lithium cathode containing nickel, manganese and cobalt, which is used in most electric vehicles. Currently, less than 5% of used LIBs are recycled today. The method involves first collecting cathode particles from spent lithium-ion batteries. Researchers then pre-dosed Li into the Li-deficient cathode particles, and pressurized the cathode particles in a hot, alkaline, solution containing lithium salt—this solution can be recycled and reused to process more batches. Afterwards, the particles go through a short annealing process in which they are heated to 800 ˚C and then cooled...

Full article: http://www.greencarcongress.com/2018/01/20180125-ucsd.html

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A simple new recycling process restores old lithium battery cathodes to mint condition using half the energy of current pr...

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