The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 08, 2025
Filed:
May. 09, 2022
National Technology & Engineering Solutions of Sandia, Llc, Albuquerque, NM (US);
Leo J. Small, Albuquerque, NM (US);
Melissa Lynn Meyerson, Albuquerque, NM (US);
National Technology & Engineering Solutions of Sandia, LLC, Albuquerque, NM (US);
Abstract
The invention is directed to a mediated metal-sulfur flow battery. This battery format that is readily scalable to grid-scale levels at low cost, while maintaining battery safety by physically separating the anode and cathode. As an example, the marriage of a redox-targeting scheme to an engineered Li solid electrolyte interphase (SEI) enables a scalable, high efficiency, membrane-less Li—S redox flow battery. Redox mediators can be sued to kick-start the initial reduction of solid S into soluble polysulfides on the cathode side and final reduction of polysulfides into solid LiS, precluding the need for conductive carbons. On the anode side, a LiI and LiNOpretreatment and additive strategy encourages a stable SEI and lessens capacity fade, avoiding the need for ion-selective separators.