Abstract: A method of improving interfacial contact at an electrode-to-solid-electrolyte interface in a solid-state battery cell is provided. The method includes providing a solid-state battery cell including a solid-state electrolyte and electrodes defining an anode and a cathode. Each of the anode and cathode are adjacent to the solid-state electrolyte at an interface. The method further includes electrochemically increasing interfacial contact between at least one of the electrodes and the solid-state electrolyte by applying a voltage pulse to the cell at a high current density for a short duration, wherein electrode material diffuses into pores formed in the solid electrolyte interface, thereby healing the pores and eliminating an interfacial space charge effect.

Abstract: A method of reviving a lithium-ion battery cell in which dendrites are formed providing a lithium-ion battery cell including a lithium-metal-containing electrolyte and one of a graphite or a lithium-metal-containing anode. Lithium dendrites are formed at an anode/electrolyte interface in the cell and extend into the electrolyte of the cell. The method further includes electrochemically healing the battery cell by actively applying a plurality of continuous low current density galvanostatic charge-discharge cycles to the battery cell. Lithium metal is thusly oxidized from tips of the dendrites thereby causing dissolution of the dendrites.