Abstract: Disclosed are a lithium secondary battery configured such that a separator and a cathode plate are disposed between an anode current collector and a cathode current collector and an electrolyte is provided between the anode current collector and the cathode plate, in which the cathode plate is formed by pressing a cathode active material powder, and the cathode plate is coated with a sacrificial material formed of a compound containing lithium, and a method of manufacturing the same.

Abstract: Disclosed is a method of manufacturing an all-solid-state battery, the method including a mixture formation step of mixing positive electrode active material powder coated with a lubricating material and electrolyte powder with each other to form a mixture, an application step of applying the mixture to a positive electrode current collector, and a pressing step of pressing the mixture and the positive electrode current collector. Pores in a positive electrode composite layer formed in the pressing step may be reduced, whereby the performance of the all-solid-state battery may be improved.

Abstract: The present disclosure relates to a heterojunction composite including: a chalcogenide metal compound dispersed on a substrate, and all or a part of the substrate is chalcogenized in the same manner as the chalcogenide metal compound.

Abstract: The present disclosure relates to a heterojunction composite including: a chalcogenide metal compound dispersed on a substrate, and all or a part of the substrate is chalcogenized in the same manner as the chalcogenide metal compound.