ELECTROCHROMIC DEVICE AND PROCESS FOR MAKING THE SAME

摘要

An electrochromic device includes upper and lower substrate units, and an electrochromic laminate sandwiched between an upper electrode of the upper substrate unit and a lower electrode of the lower substrate unit. The electrochromic laminate includes an ion storage layer formed on the upper electrode, an active layer formed on the lower electrode, and a polymer electrolyte sandwiched between inner surfaces of the ion storage layer and the active layer. At least one of the inner surfaces has a roughened peripheral region such that an adhesion force generated between the roughened peripheral region and the polymer electrolyte is effective to minimize thermal shrinkage of the polymer electrolyte.

主权项

1. An electrochromic device comprising:
upper and lower substrate units, at least one of which is light-transmissive, said upper substrate unit having an upper substrate body and an upper electrode formed on said upper substrate body, said lower substrate unit having a lower substrate body and a lower electrode formed on said lower substrate body; and an electrochromic laminate sandwiched between said upper and lower electrodes, and including
an ion storage layer formed on said upper electrode, and having a first inner surface which is opposite to said upper electrode, and which includes a first central region and a first peripheral region,an active layer which is made of an electrochromic material, which is formed on said lower electrode, and which has a second inner surface that is opposite to said lower electrode, and that includes a second central region and a second peripheral region,a polymer electrolyte which is sandwiched between said first inner surface of said ion storage layer and said second inner surface of said active layer, and which is made from a polymeric adhesive material such that said active layer and said ion storage layer are bonded to each other by means of said polymer electrolyte, whereinat least one of said first and second peripheral regions is roughened to increase a contact area between said polymer electrolyte and said at least one of said first and second peripheral regions such that an adhesion force generated therebetween is effective to minimize thermal shrinkage of said polymer electrolyte caused by internal stress of said polymer electrolyte.