TechConnect Innovation Program

Ionic Liquid Redox Flow Battery Prototyping

Sandia National Laboratories, NM, United States

TECHNOLOGY SUMMARY

We have created ionic-liquid electrolytes with non-aqueous membranes and cell designs for higher energy density flow batteries. We are projecting a four-fold improvement in energy density through higher voltages and utilizing materials with multiple charge states. The advancement of this technology comes from simultaneously tuning both electrolytes and membranes.

Primary Application Area: Energy & Efficiency

Technology Development Status: Concept

Technology Readiness Level: TRL 4

FIGURES OF MERIT

Value Proposition: The development of non-aqueous flow batteries has been limited by the fact that commercially available, ion selective membranes are not designed for non-aqueous use. However, Sandia has developed its own membranes that can be fine-tuned for optimal compatibility with non-aqueous electrolytes resulting in higher Coulombic efficiencies and reduced crossover.

SHOWCASE SUMMARY

Organization Type: Academic/Gov Lab

Showcase Booth #: 722

Website: http://www.sandia.gov

GOVT/EXTERNAL FUNDING SOURCES

Government Funding/Support to Date:

Primary Sources of Funding: Other

Looking for: Both Funding and Development Partners