公开(公告)号：US20230034579A1

公开(公告)日：2023-02-02

申请号：US17781924

申请日：2020-12-03

Applicant: DREXEL UNIVERSITY

Inventor： Michel W. BARSOUM ,  Michael S. CAREY ,  Rahul Nagesh PAI ,  Vibha KALRA ,  Varun R. NATU

IPC: H01M4/58 ,  C01B32/907 ,  H01M4/36 ,  H01M4/62 ,  H01M4/04

Abstract: Provided are methods of effecting cation exchange in MXene materials so as to stabilize the materials. Also provided are compositions, comprising layered MXene materials that comprise an organic cation between layers. Also provided are MXene compositions comprising a chalcogen disposed thereon, the MXene composition further optionally comprising a quaternary ammonium halide disposed thereon.

公开(公告)号：US20240274831A1

公开(公告)日：2024-08-15

申请号：US18568358

申请日：2022-06-10

Applicant: DREXEL UNIVERSITY

Inventor： Rahul Nagesh PAI ,  Vibha KALRA ,  Michel W. BARSOUM ,  Hussein O. BADR

IPC: H01M4/62 ,  H01M4/02 ,  H01M4/13 ,  H01M10/052

CPC classification number: H01M4/628 ,  H01M4/13 ,  H01M4/623 ,  H01M10/052 ,  H01M2004/028

Abstract: By combining two-dimensional (2D) transition metal oxide and/or carbo-oxides with sulfur, one can form cathodes for use in Li—S batteries, which batteries in turn exhibit high capacity and other attractive characteristics. Accordingly, provided herein are methods, comprising: forming an admixture that comprises sulfur, a 2D transition metal carbo-oxide, and optionally a conductive material. Also provided are electrodes, comprising sulfur, a 2D transition metal carbo-oxide, and optionally a conductive material. Further provided are energy cells, the energy cell comprising a first electrode according to the present disclosure. Additionally provided are methods, the methods comprising discharging an energy cell according to the present disclosure or charging an energy cell according to the present disclosure. Also provided are electrical devices, comprising an energy cell according to the present disclosure.