公开(公告)号：US20210253445A1

公开(公告)日：2021-08-19

申请号：US17036726

申请日：2020-09-29

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Dong Won CHUN ,  Sung Jong YOO ,  Jaeyoung HONG ,  Hee-Young PARK ,  Young-Su LEE ,  Jin-Yoo SUH ,  Jee-Hwan BAE ,  Min Kyung CHO

IPC: C01G55/00

Abstract: Provided is a method of preparing palladium hydride nanoparticles having a hcp crystal structure.
According to an embodiment of the present invention, the method includes: (a) preparing a liquid cell containing a palladium precursor solution; (b) applying electron beams to the palladium precursor solution contained in the liquid cell; and (c) generating palladium hydride nanoparticles having the hcp crystal structure in the palladium precursor solution.

公开(公告)号：US20210075053A1

公开(公告)日：2021-03-11

申请号：US16725656

申请日：2019-12-23

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kyung Yoon CHUNG ,  Dong Hyun KIM ,  Juhyeon AHN ,  Jaeho PARK ,  Ji-Young KIM ,  Min Kyung CHO ,  Byung Won CHO ,  Hun-Gi JUNG ,  Minah LEE ,  Seungho YU ,  Hyungseok KIM

IPC: H01M10/054 ,  H01M10/0569 ,  H01M4/525 ,  H01M4/505 ,  H01M10/0525 ,  H01M4/04

Abstract: The present disclosure relates to a cathode active material for a sodium ion secondary battery having high reversible capacity and excellent cycle characteristics, and a method for preparing the same. The cathode active material for a sodium ion secondary battery shows high reversible capacity and excellent cycle characteristics, when it is applied to a secondary battery. Therefore, when the cathode active material is used for manufacturing a cathode for a sodium ion secondary battery and the cathode is applied to a sodium ion secondary battery, the battery can substitute for the conventional expensive lithium ion secondary battery and can be applied to various industrial fields.