公开(公告)号：US20250087743A1

公开(公告)日：2025-03-13

申请号：US18427499

申请日：2024-01-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyunjin KIM ,  Jungock PARK ,  Youngsin PARK ,  Joungwon PARK ,  Hyunpyo LEE ,  Jonghoon KA

IPC: H01M10/0562 ,  H01M4/02 ,  H01M4/583 ,  H01M4/66 ,  H01M10/26

Abstract: A sodium all-solid secondary battery including: a cathode; an anode; a sulfide-containing electrolyte between the cathode and the anode; an oxide-containing electrolyte between the sulfide-containing electrolyte and the anode; and a first bonding layer between the oxide-containing electrolyte and the sulfide-containing electrolyte, wherein the cathode includes a cathode current collector and a cathode active material layer, the anode includes an anode current collector and an anode active material layer, and the first bonding layer includes a metal capable of forming an alloy with sodium, a sodium ion-conductive material, or a combination thereof.