Progress toward durable, cost effective electrochromic window glazings

Electrochromic (EC) glazings for architectural window systems must have des irable solar control properties, be designed for high-volume manufacture, a nd exhibit outstanding durability. This paper discusses performance and bot h real time and accelerated testing of prototype monolithic lithium-ion EC glazings in insulating glass units (IGUs). Outdoor exposure at New Jersey a nd Arizona (desert) test sites shows good switching performance under the d ifferent solar irradiance conditions. Accelerated test results include room temperature and elevated temperature electrochemical cycling, electrochemi cal cycling in combination with photo/thermal cycling, and temperature/humi dity testing of IGUs. (C) 1999 Elsevier Science B.V. All rights reserved.