The Hong Kong Research Institute of Textiles and Apparel Limited

Yeung Yu Hui

Lei Yao

Edwin Yee Man Keh

Xinxin Huang

Colin Xin Chen

Derek Lai

Yue Kit Hui

Disclosed are an electrochromic element, device, and product, and a manufacturing method therefor. The electrochromic device () comprises: an electrochromic yarn (), an ion storage yarn (), and a power source (), wherein the electrochromic yarn () contains a first flexible conductive yarn () and an electrochromic layer () coated on a surface layer of the first flexible conductive yarn (); the ion storage yarn () contains a second flexible conductive yarn () and an ion storage layer () coated on a surface layer of the second flexible conductive yarn (); and the first flexible conductive yarn () is electrically connected to a negative electrode of the power source (), and the second flexible conductive yarn () is electrically connected to a positive electrode of the power source (). The electrochromic device () can achieve a clear color development effect and make an electrochromic material have a good fastness. The preparation method is simple to operate and easily realizes industrial batch production.

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Hong Kong, China

Yeung Yu Hui