Patent attributes
A current collector for an electrode of an electrochemical cell is described. The current collector has a peripheral edge between first and second major faces, the edge comprising at least a first edge contiguous with a second edge angled with respect to each other. A protrusion extends outwardly from the junction of the first and second edges. This protrusion helps to precisely position the current collector in a pressing fixture. That way, active material is contacted to each of the major faces of the current collector and is of a uniform thickness about its edges. Later, when the resulting electrode plate is assembled into an electrochemical cell, such as of a multi-plate construction, the protrusion also serves to maintain strict alignment of the plate inside the casing.
