公开(公告)号：US11990613B2

公开(公告)日：2024-05-21

申请号：US16956761

申请日：2018-12-21

Applicant: THE TEXAS A&M UNIVERSITY SYSTEM

Inventor： Sarbajit Banerjee ,  Justin L. Andrews ,  Abhishek Parija ,  Luis R. De Jesus Baez

IPC: H01M4/48 ,  C01G31/02 ,  H01M4/62 ,  H01M10/054 ,  H01M4/02

CPC classification number: H01M4/483 ,  C01G31/02 ,  H01M4/622 ,  H01M4/625 ,  H01M10/054 ,  C01P2002/72 ,  C01P2002/77 ,  C01P2002/78 ,  C01P2004/02 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/16 ,  C01P2006/40 ,  H01M2004/028

Abstract: The Li-ion paradigm of battery technology is fundamentally constrained by the monovalency of the Li-ion. A straightforward solution is to transition to multivalent ion chemistries, with Mg2+ the most obvious candidate due to considerations of size and mass. Despite early interest, the realization of Mg batteries has faced myriad obstacles, including a sparse selection of cathode materials demonstrating the ability to reversibly insert divalent ions. Disclosed herein is evidence of reversible topochemical and electrochemical insertion of Mg2+ into a metastable one-dimensional polymorph of V2O5. Not only does ζ-V2O5 represent a rare addition to the pantheon of functional Mg battery cathode materials, but is also distinctive in exhibiting a combination of high stability, high specific capacity due to ion insertion, and moderately high operating voltage.