Devices and methods for preparing slurry and coating substrate with slurry

Devices and methods for preparing a slurry for coating onto a substrate are disclosed. The devices and methods of the present disclosure relate to providing a slurry in a closed volume with at least one passage. The slurry includes a solvent, a powder, and a binder. The slurry can also include a dispersion agent. The slurry is forced repeatedly under high pressure through the at least one passage in a first flow direction and then back through the at least one passage in a second flow direction, opposite the first flow direction. The forcing homogenously disperses the powder and the binder within the solvent. Both sides of the substrate are then coated simultaneously with the slurry extruded from the closed volume after the forcing. Curing of the coated slurry includes freeze drying to preserve the porosity of the slurry on the substrate. 用于制备用于涂覆到基底上的浆料的装置和方法。本披露的装置和方法涉及在具有至少一个通道的封闭体积中提供浆料。该浆料包含溶剂、粉末和粘合剂。该浆料还可以包含分散剂。在高压下反复推动该浆料以第一流动方向通过该至少一个通道并且然后以与该第一流动方向相反的第二流动方向通过该至少一个通道返回。该推动将该粉末和该粘合剂均匀地分散在该溶剂中。然后，在该推动后用