Chinese battery giant CATL and German carmaker Opel win in e-battery dispute with Japanese MU Ionic in German court German carmaker Opel has won an infringement case at the Regional Court Düsseldorf after Japanese company MU Ionic accused the company's supplier CATL of infringing a patent with its battery technology. 2.9w 02-16 17:51 READ MOST No Data Yet~ POPULAR TAGS No Data Yet~