公开(公告)号：US20200299197A1

公开(公告)日：2020-09-24

申请号：US16559324

申请日：2019-09-03

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sung-Yoon Chung ,  Ji-Sang An

IPC: C04B35/468 ,  C01G23/00 ,  C01G33/00 ,  C04B35/626 ,  C04B35/64 ,  H01G4/12

Abstract: The present disclosure provides a method for preparing a dielectric which can provide a low-dielectric loss dielectric not variable to frequency, wherein the dielectric shows a narrow variation in dielectric characteristics depending on temperature, undergoes no change in dielectric characteristics depending on frequency and thus has a low dielectric loss. The present disclosure also provides a dielectric prepared by the method.

公开(公告)号：US20180251381A1

公开(公告)日：2018-09-06

申请号：US15725847

申请日：2017-10-05

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Sung-Yoon Chung ,  Hyesung Kim

IPC: C01F11/02 ,  C01G25/00 ,  C01G25/02 ,  C01G99/00 ,  H01M8/1246

CPC classification number: C01F11/02 ,  C01F17/0012 ,  C01G25/006 ,  C01G25/02 ,  C01G99/006 ,  C01P2002/34 ,  C01P2002/36 ,  C01P2004/04 ,  C01P2004/80 ,  C01P2006/40 ,  H01M8/1246

Abstract: Provided is a polycrystalline oxide having a chemical formula such as the following A1−xB1−yMyO3 and having an improved grain boundary proton conductivity as an oxide having a perovskite structure. Through the present invention, the conductivity and chemical stability of proton conducting oxide may be improved.