Sanghyuk Park

TL;DR: Co recovery via the ammoniacal leaching is believed to gain a competitive edge on convenitonal acid leaching both by reducing the sodium hydroxide expense for increasing the pH of leaching solution and by removing the separation steps of Mn and Al.

TL;DR: Li et al. as mentioned in this paper synthesize Li[Ni1/3Co 1/3Mn1/ 3]O2 (NCM) and Li [Ni 1 /3Co/Fe 3 ]FexO 2 (NCMF) cathode active materials with various amounts of Fe via hydroxide coprecipitation and calcination processes, which simulate the resynthesis of NCM in leach liquor containing Fe from spent lithium-ion batteries (LIBs).

TL;DR: In this article, the effects of Cu doping element/impurity in cathode active materials with the addition of Cu were investigated under different experimental conditions such as cutoff voltage and temperature.

TL;DR: In this paper, a trace amount of Fe (0.25%) is incorporated in Ni-rich Li[Ni1-x-yCoxMny]O2 cathode active material at an impurity level, Li [Ni0.78Co0.11Mn0.0023O2 (NCMF), to investigate the effects of Fe on structural and electrochemical properties.

TL;DR: In this article, the effect of residual Li in the precursors on the lithium-ion battery performance of their corresponding cathode active materials was investigated, and the authors concluded that strict control of Li in a solution for co-precipitation of precursor is necessary in the resynthesis of cathode activations from spent LIBs.