Journal Article 2D materials CVD growth Cr5Te8 Li+ transference number aggressive cathodes alkali chloroaluminate melt anion trapping cathode‐electrolyte interphase dissolution electrochemical recycling ferromagnetism lithium metal batteries low operating temperature molten salt electrolysis polycationic solid electrolytes sodium‐ion batteries spent LIB cathodes stable cycling stable high‐voltage electrolyte tamed interphases tunable thickness