A powder dispensing apparatus having an elongate wedge-shaped hopper including one or more fluidized plates is described. The powder dispensing apparatus can be positioned above a pair of calender rolls to distribute a powder, such as a dry electrode mater...

An impeller comprising a wheel portion extending in an axial direction and a plurality of blades arranged around the wheel portion is produced by assembling a mold divisible into a plurality of parts having a cavity adapted for forming an outer profile of ...