Stromabnahme über thermisch aufgespritzte Laschen an den Enden einer spiralförmig gerollten elektrochemischen Zelle

摘要

A method of making an electrochemical cell, and an electrode stack made thereby. The method includes fabrication of a coating (14) onto selected areas of the ends of the stack by a thermal spray (12) coating process in which the coating is applied to one of the electrodes (e.g., 4) in the stack without the coating contacting the alternate edges of the other electrode (e.g., 6) in the stack. Suitable conductive strips (22), compatible with the substrate materials that make up the electrodes of the cell, can be attached to the thermally sprayed coating layers, or can be embedded into the sprayed materials as they are applied to the electrode stack.