| Abstract Scope |
Molten salt electrosynthesis is well developed at an industrial scale for the reduction of refractory elements and alloys. However, studies on multi-component systems grown by electrolytic oxidation are sparse. In this demonstration, we discuss a molten hydroxide mediated (LiOH, NaOH, KOH, CsOH and combinations thereof), intermediate temperature (250-350°C) electrocrystallization of alkali ion (Li+, Na+) intercalated transition metal oxides (Li2MnO3, LiMnO2, LiNixMn1-xO4, LiCoO2, NaCoO2, NaMnO2) in the form of tens of microns thick films. We explore the effects of electrodeposition parameters and solvent chemistry to formulate synthesis diagrams and probe mechanistic pathways across different transition metal chemistries. The conformally electroplated oxides provide unique opportunities as binder-and-additive-free, energy-dense cathodes for Li and Na ion battery. |