公开(公告)号：US20240339630A1

公开(公告)日：2024-10-10

申请号：US18627671

申请日：2024-04-05

申请人： UT-Battelle, LLC

发明人： Marm Dixit ,  Ruhul Amin ,  Rachid Essehli ,  Ilias Belharouak ,  Mahalingam Balasubramanian ,  Nitin Muralidharan

IPC分类号： H01M6/18 ,  H01M10/0562

CPC分类号： H01M6/182 ,  H01M10/0562 ,  H01M2300/008

摘要： A method of making an anti-perovskite solid electrolyte is provided. The method includes: providing an anti-perovskite material that is in the form of a powder; heating a die to a temperature between approximately 200 and 400° C.; loading the anti-perovskite powder into the heated die; compressing the anti-perovskite powder in the heated die; and allowing the heated die to cool to ambient temperature under pressure by maintaining the compression until the die has cooled to ambient temperature. The compression may be performed uniaxially and at a pressure in a range of 1 to 500 MPa. The anti-perovskite may undergo phase transformation, densification, and grain growth during compression at the elevated temperature. An anti-perovskite solid electrolyte formed by the method, and an anti-perovskite solid-state battery including the solid electrolyte are also provided.