University of California

Lg Energy Solution, Ltd.

Jiyoung Kim

Jung-Pil Lee

Min-Sang Song

Dong Ju Lee

Zheng Chen

Yuju Jeon

Dongju Lee

Disclosed is a solid electrolyte membrane, a method for manufacturing the same, and an all-solid-state battery including the same. More specifically, the solid electrolyte membrane includes a first solid electrolyte layer including a first solid electrolyte and a first fibrous binder and a second solid electrolyte layer including a second solid electrolyte and a second fibrous binder, stacked adjacent to each other, wherein the weight of the first fibrous binder relative to the total weight of the first solid electrolyte layer is less than the weight of the second fibrous binder relative to the total weight of the second solid electrolyte layer. Since the weight of a first fibrous binder included in the first solid electrolyte layer is less than the weight of the second fibrous binder included in the second solid electrolyte layer, the strength may be improved without lowering the ionic conductivity of the solid electrolyte membrane.

Solid electrolyte membrane, method for manufacturing the same, and all-solid-state battery comprising the same

Methods for making solid state battery apparatus are provided. The method comprises continuously supplying a first composite sheet comprising a cathode layer and a solid electrolyte layer formed on the cathode layer. The method comprises continuously supplying an aluminum-containing sheet over the first composite sheet such that the aluminum-containing sheet is placed on the solid electrolyte layer of the first composite sheet. The method comprises continuously roll-bonding the aluminum-containing sheet and the first composite sheet to provide a second composite sheet comprising the cathode layer. The method comprises continuously supplying, over the second composite sheet, a third composite sheet comprising a lithium-containing layer and a conductive layer. The method comprises continuously roll-bonding the second composite sheet and the third composite sheet such that the lithium-containing layer and the aluminum-containing layer are compressed together to form a prelithiated anode.

Methods for making solid state battery apparatus

Disclosed is a solid electrolyte membrane, a method for manufacturing the same, and an all-solid-state battery containing the same. More specifically, the solid electrolyte membrane includes a first solid electrolyte layer and a second solid electrolyte layer stacked adjacent to each other, and the first solid electrolyte layer has a structure in which particulate binders are dispersed, and the second solid electrolyte layer has a structure in which fibrous binders are entangled or connected to each other, and thus the strength may be improved without lowering the ionic conductivity of the solid electrolyte membrane. The solid electrolyte membrane may be substantially free of solvent.

Growing community of inventors

Daejeon, South Korea

Jiyoung Kim