An Efficient and Flexible Bifunctional Dual-Band Electrochromic Device Integrating with Energy Storage

A flexible dual-band electrochromic device with a high optical modulation and a long cycle life was reported. The device assembled can modulate the visible light and near-infrared independently and effectively, showing higher energy-saving performance than commercial low-emissivity glass in most climatic zones around the world. The flexible device also shows good energy storage and energy recycling performances, recycling 51.4% of the energy consumed in the coloration process for local reusing.