According to foreign media, recently, Germany's Fraunhofer Institute of Environmental Security and Energy Technology developed a new "bipolar plate". The equipment can be used for bipolar battery, and the newly developed bipolar plate can save 80% of the material consumption.(Lithium - Ion Battery Equipment) According to the R&D personnel, the new bipolar plate uses conductive polymer, which has extremely thin physical properties, and can save a lot of material consumption compared with the tra