公开(公告)号：US20250154013A1

公开(公告)日：2025-05-15

申请号：US18945727

申请日：2024-11-13

Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

Inventor： Sun Hwa YEON ,  Kyoung Hee SHIN ,  Chang Soo JIN ,  Dong Ha KIM ,  Se Kook PARK ,  Seung Hae HWANG ,  Dong Hee GUEON ,  Yeon Ji CHOI ,  Dae Seon HONG

IPC: C01B32/90

Abstract: Disclosed is a method of preparing MXene, by which the manufacturing costs are reduced, and the manufacturing steps are simplified. According to one aspect, provided is the method of preparing a MXene, the method including (S1) preparing a preliminary MXene by halogenating a MAX through a halogenation reaction using a halogen gas and (S2) preparing a MXene by reducing the preliminary MXene through a reduction reaction.

公开(公告)号：US20230150822A1

公开(公告)日：2023-05-18

申请号：US17986174

申请日：2022-11-14

Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

Inventor： Seung Hae HWANG ,  Chang-soo JIN ,  Kyoung-hee SHIN ,  Sun-hwa YEON ,  Se-Kook PARK ,  Dong Ha KIM

IPC: C01B32/184 ,  C07C45/61 ,  H01M4/66

CPC classification number: C01B32/184 ,  C07C45/61 ,  H01M4/663 ,  B82Y30/00

Abstract: Provided are reduced acylated graphene oxide as an electrode active material and a method for preparing the same. By the method for preparing reduced acylated graphene oxide according to the present invention, a negative electrode active material for a lithium secondary battery having stable activity and a high battery capacity may be prepared with a simple and low-cost process. In addition, the active material prepared by the preparation method has low resistance, a high battery capacity, and improved rate-limiting characteristics while having stable cycle characteristics.