Dongguan AET’s separator coating and Dongguan AMT’s soft pack films (aluminium laminated film, steel laminated film) are new processes and new products with high technical barriers which the market is mostly monopolized by renowned foreign manufacturers. In recent years based on independent R&D, Dongguan AET and Dongguan AMT have closely followed the international advanced technology trends, grasped the industrial trend, made full use of existing R&D platforms, industry-university-research cooperation platforms and technology exchange platforms to create a multi-dimensional R & D innovation system. Technological breakthroughs of localization were made in the field of separator coating, aluminium laminated film and steel laminated film.