Membrane Separator for Redox Flow Batteries that Utilize Anion Radical Mediators.

Technical Report · Wed Oct 01 00:00:00 EDT 2014

DOI:https://doi.org/10.2172/1160295· OSTI ID:1160295

Delnick, Frank M.

A Na + ion conducting polyethylene oxide membrane is developed for an organic electrolyte redox flow battery that utilizes anion radical mediators. To achieve high specific ionic conductivity, tetraethyleneglycol dimethylether (TEGDME) is used as a plasticizer to reduce crystallinity and increase the free volume of the gel film. This membrane is physically and chemically stable in TEGDME electrolyte that contains highly reactive biphenyl anion radical mediators.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 1160295
• Report Number(s): SAND2014-18581; 540387
• Country of Publication: United States
• Language: English