Na-ion batteries, positive electrode materials, NaMnO2, post-mortem, Raman
sodium-ion batteries, ionic liquids, hard carbon, electrolytes, solid electrolyte interphase
ionic liquid, safe electrolyte, silicon anode, high voltage cathode, lithium battery
Spent Lithium-Ion Batteries, Direct Cathode Recycling, NMC442, Solvent-Assisted Delamination, Surface Chemistry, Solid-State Re-lithiation.