公开(公告)号：US20230061376A1

公开(公告)日：2023-03-02

申请号：US17827433

申请日：2022-05-27

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Sung Oh CHO ,  Juhyuk LEE ,  Sangyoon LEE

IPC: H01M50/446 ,  H01M50/403

Abstract: The present invention relates to a method for manufacturing a lithium secondary battery separator comprising the following steps: a step of surface-modifying inorganic particles using a coupling agent; a step of mixing the surface-modified inorganic particles with a polymer; and a step of irradiating an electron beam to the mixed inorganic particles and polymer. The method for manufacturing a lithium secondary battery separator provided in one aspect of the present invention has an effect that a lithium secondary battery separator having improved mechanical and thermal properties can be manufactured.

公开(公告)号：US20250092558A1

公开(公告)日：2025-03-20

申请号：US18733561

申请日：2024-06-04

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Sung Oh CHO ,  Jaewoo LEE

IPC: C25D11/34 ,  C25D17/12

Abstract: Disclosed herein are an amorphous metal oxyhydroxide represented by Chemical Formula 1 below, a negative electrode active material for a secondary battery including the same, and a method for producing the same. MxOy(OH)z  [Chemical Formula 1] In [Chemical Formula 1] above, M is one or more selected from the group consisting of tin, aluminum, titanium, vanadium, chromium, manganese, iron, cobalt, nickel, gallium, zirconium, niobium, molybdenum, indium, and tantalum, and 0.4≤x≤0.7, 0.1≤y≤0.4, 1.6≤z≤1.9, y+z=2, and −0.1≤4x-2y-z≤0.1.