2results about How to "Control roughness" patented technology

The utility model discloses a kind of vertical perfusion formworks of arc component, belong to concrete pouring mould technical field, including arc inner mould, arc outer mould, end mould, arc bottom die, travelling mechanism and positioning mechanism;The arc inner mould, arc outer mould, arc bottom die and end mould are matched into mould and are poured;The end mould can be rotatably connected in arc outer mould both sides;The arc bottom die is fixedly connected in arc outer mould bottom;The travelling mechanism is used to drive arc inner mould and arc outer mould into mould and stripping;The positioning mechanism is used for accurate positioning when arc inner mould and arc outer mould into mould.The utility model of a kind of vertical perfusion formworks of arc component, can effectively solve the pouring mould platform of prior art is flat mould production, and the component poured out by it is not good control because of the large area of upper surface, lack of vertical perfusion formwork suitable for arc segment and other problems.

The present application belongs to the field of batteries. The present application provides a kind of pole piece for improving surface flatness, its preparation method and battery, the preparation method includes that the coating layer of pole piece has formed is carried out re-coating, the mode of re-coating is gravure coating, control the particle size of substance in slurry used in re-coating is less than the particle size of substance in the coating layer that has formed, then carries out isostatic pressing treatment, forms re-coating layer.The specific re-coating layer formed by isostatic pressing treatment of the present application can prevent the generation of internal and surface defects of pole piece caused by roll pressing, improve the surface roughness and thickness uniformity of pole piece, effectively improve the surface flatness of pole piece and reduce interface impedance, optimize the solid-solid contact state and effect of electrode active material and solid electrolyte in pole piece, and further improve the cycle stability of battery.