NEGATIVE ELECTRODE-FREE LITHIUM METAL BATTERY, AND PREPARATION METHOD THEREFOR AND USE THEREOF

An anode-free lithium metal battery, and preparation method and use thereof. The anode-free lithium metal battery comprises: a cathode comprising a cathode current collector and a cathode active material layer containing a lithium replenishment agent; an anode current collector; an electrolyte comprising at least one boron-containing lithium salt and a fluorinated amide compound solvent; and a separator. The fluorinated amide electrolyte and the lithium replenishment agent are used in combination, so that when the anode-free lithium metal battery is charged for the first time, a thin lithium layer with a dense deposition structure can be form in situ on the anode current collector, and serves as an additional lithium reservoir for offsetting irreversible lithium loss, thereby the anode-free lithium metal battery has a significantly improved cycle life while maintaining high energy density.