公开(公告)号：US20240291024A1

公开(公告)日：2024-08-29

申请号：US18417456

申请日：2024-01-19

申请人： KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： Hun-Gi JUNG ,  Kyung Yoon Chung ,  Seungho Yu ,  Minah Lee ,  Jimin Shim ,  Jungjin Park ,  Hyeon-Ji Shin ,  Jun Tae Kim ,  A-Yeon Kim ,  Hyeon Seong Oh ,  Minyoung Lee ,  Hee-Dae Lim

IPC分类号： H01M10/0562

CPC分类号： H01M10/0562 ,  H01M2300/0068

摘要： Provided is a method of producing a composite solid electrolyte. The method includes step S10 of producing an oxide-based solid electrolyte membrane by electrospinning a mixture including an oxide-based solid electrolyte precursor and a polymer, step S20 of producing an oxide-based solid electrolyte support by removing the polymer inside the oxide-based solid electrolyte membrane, and step S30 of causing the oxide-based solid electrolyte support to be impregnated with a sulfide-based solid electrolyte using a sulfide-based solid electrolyte precursor solution including a sulfide-based solid electrolyte precursor and a solvent.

公开(公告)号：US11837726B2

公开(公告)日：2023-12-05

申请号：US16829689

申请日：2020-03-25

申请人： KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： Moeez Iqra ,  Ji-Young Kim ,  Jaeho Park ,  Hee-Dae Lim ,  Hun-Gi Jung ,  Won Young Chang ,  Minah Lee ,  Seungho Yu ,  Kyung Yoon Chung

IPC分类号： H01M4/58 ,  C01D3/04 ,  H01M4/02

CPC分类号： H01M4/582 ,  C01D3/04 ,  C01P2002/72 ,  C01P2002/76 ,  C01P2002/77 ,  C01P2002/85 ,  C01P2004/04 ,  C01P2006/40 ,  H01M2004/021 ,  H01M2004/028

摘要： The present disclosure relates to a cathode active material for a secondary battery, a cathode for a secondary battery including the same, a secondary battery including the cathode for a secondary battery and manufacturing methods thereof. More particularly, it is possible to obtain a secondary battery having excellent electrochemical characteristics by electrochemically inducing a structural phase change in the cathode active material of a secondary battery including NaCl as a cathode active material.

公开(公告)号：US11777136B2

公开(公告)日：2023-10-03

申请号：US16725656

申请日：2019-12-23

申请人： KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： 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分类号： H01M10/054 ,  H01M4/04 ,  H01M4/505 ,  H01M10/0525 ,  H01M4/525 ,  H01M10/0569

CPC分类号： H01M10/054 ,  H01M4/0445 ,  H01M4/0459 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0569

摘要： Disclosed is a method of preparing a cathode active material useful in a sodium ion secondary battery having high reversible capacity and excellent cycle characteristics. The method for preparing a cathode active material composed of Zrw-doped NaxLiyMzOa includes the steps of (A) doping LiyMzOa with Zrw to provide Zrw-doped LiyMzOa; and (B) dissociating Li ion from the Zrw-doped LiyMzOa and inserting Na ion thereto to provide the Zrw-doped NaxLiyMzOa, wherein M is selected from Ti, V, Cr, Mn, Fe, Co, Ni, Mo, Ru, and combinations thereof, and wherein 0.005