M2 internship - The EC-LIPSE project aims to develop more environmentally friendly electrochromic devices. To this end, non-toxic solvents are prioritized, and bio-based additives are being considered as alternatives to those typically used. The use of printing techniques—an additive manufacturing process—also helps reduce environmental impact. The objective of the internship is to assess whether the project's strategies genuinely contribute to reducing environmental impact compared to conventional manufacturing processes and the use of toxic materials.