christiane hunnish founded a small company that recycles car batteries it specializes in batteries for electric vehicles which contain a lot of valuable raw materials especially metals but it's not easy to extract them and it can also be dangerous. but that didn't discourage the businessman. the batteries are already out there so it makes sense to extract the raw materials and reuse them we saw the huge potential in that. 10 years ago the process engineer founded the dews infeld company this special shredder is at the heart of the firm it shreds the scrap batteries turning them into a granular. there's a good reason for the thick steel plates in the machine they protect the inner walls from the liquid components in the battery electrolyte which is highly explosive. finding a way to separate the electrolyte from other components was the biggest challenge they took on is 10 years of drawing calculating and testing now the pure battery fluid flows into a steel tank this is the electrolyte fluid that no one else can do that the company sells it to the chemical industry the granulate from t