公开(公告)号：US20220181604A1

公开(公告)日：2022-06-09

申请号：US17179354

申请日：2021-02-18

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kyung Yoon CHUNG ,  Ha Kyung ROH ,  Moeez IQRA ,  Eun Seong KIM ,  Hun-Gi JUNG ,  Won Young CHANG

IPC: H01M4/36 ,  H01M4/58 ,  H01M4/48 ,  H01M10/054

Abstract: The present disclosure provides a composite wherein NaCl nanoparticles are uniformly dispersed on reduced graphene oxide (rGO), a positive electrode active material including the same, a sodium secondary battery including the same, and a method for preparing the same. The positive electrode active material according to the present disclosure has a structure wherein NaCl nanoparticles are uniformly dispersed on rGO in a one-step process through chemical self-assembly. Therefore, the positive electrode active material according to the present disclosure exhibits superior electrochemical properties with high capacity because the small NaCl particles are dispersed uniformly and is economically favorable because the preparation process is simple.