Licensing Opportunity Contact Form
Submission of this form should not be interpreted as an offer to license technology. All licenses are subject to negotiation and availablility of the intellectual property for licensing. This form is intended for indications of interest only.
To initiate a Rapid Technology Deployment (RTD) license, complete and return the following forms to
RTD License Agreement
RTD Participant Data Sheet (PDS)
Email submission of completed documents, in addition to your inquiry, will expedite your licensing request.
If you are interested in IP that is not part of the RTD program, someone from the licensing team will reach out to discuss your interest.

To address the current national emergency, U.S. entities may be eligible to license select Sandia intellectual property at no cost for a limited time. Learn more.

Search/Browse Tech

Nonaqueous redox flow battery electrolyte comprising an ionic liquid with a metal cation coordinated to redox-active ligands

United States Patent

To discuss licensing opportunities, fill out our Contact Form 
May 28, 2019
View the Complete Patent at the US Patent & Trademark Office
Nonaqueous redox flow batteries (RFB) hold the potential for high energy density grid scale storage, though are often limited by the solubility of the redox-active species in their electrolytes. A systematic approach enables an increase the concentration of redox-active species in electrolytes for nonaqueous RFB, starting from a metal-coordination-cation-based ionic liquid. As an example, starting with an ionic liquid consisting of a metal coordination cation (MetIL), ferrocene-containing ligands and iodide anions can be substituted into the original MetIL structure, enabling a nearly 4.times. increase in capacity compared to original MetIL structure. Application of this strategy to other chemistries, optimizing electrolyte melting point and conductivity could yield >10 M redox-active electrons.
15/ 597,474
May 17, 2017
H01M 8/18 (20060101)H01M 8/1016 (20160101)
STATEMENT OF GOVERNMENT INTEREST This invention was made with Government support under contract no. DE-NA0003525 awarded by the U.S. Department of Energy to Sandia Corporation. The Government has certain rights in the invention.