Electrochromic Salts, Solutions, and Devices

Patent · 14 October 2008

OSTI ID:953748

Burrell, Anthony K ^[1]; Warner, Benjamin P ^[1]; McClesky, T Mark ^[1]

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1. Los Alamos, NM

Electrochromic salts. Electrochromic salts of dicationic viologens such as methyl viologen and benzyl viologen associated with anions selected from bis(trifluoromethylsulfonyl)imide, bis(perfluoroethylsulfonyl)imide, and tris(trifluoromethylsulfonyl)methide are produced by metathesis with the corresponding viologen dihalide. They are highly soluble in molten quarternary ammonium salts and together with a suitable reductant provide electrolyte solutions that are used in electrochromic windows.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM
• Sponsoring Organization: United States Department of Energy
• DOE Contract Number: W-7405-ENG-36
• Assignee: Los Alamos National Security, LLC (Los Alamos, NM)
• Patent Number(s): 7,436,570
• Application Number: 10/996,927
• OSTI ID: 953748
• Country of Publication: United States
• Language: English