Design Factors that Enable High Performance Dynamic Windows Based on Reversible Metal Electrodeposition

Dynamic windows with adjustable tint give users control over the flow of light and heat to decrease the carbon footprint of buildings and improve the well-being of the people inside them. In this talk we will discuss the design of windows based on reversible metal electrodeposition. Topics will include the choice of metal (Cu, Bi, Ag or Zn), counterion (halides, nitrates, perchlorate), and solvent (water vs DMSO). We will also discuss how intercalation of lithium into nickel oxide or a metal mesh electrode can be used as the counter electrode. We will show how proper design can avoid irising, enable excellent resting stability, provide color neutrality, achieve light transmission below 0.1 % for privacy and result in good cycle life.