METHOD OF JOINING STACKS OF THIN METAL FOIL LAYERS

摘要

Disclosed are methods of welding a stack of metal foil layers together using a penetration weld. The methods include stacking of the metal foil layers, pressing or compressing the metal foil layers between end plates and welding the end plates and compressed metal foil layer stack together.

主权项

1. A method comprising
stacking a plurality of metal foil layers to form a metal foil layer stack, the metal foil layer stack having a width, a length, and a metal foil layer stack edge; sandwiching the metal foil layer stack between top and bottom end plates, each end plate having a length, a width, and a thickness defining an edge, the thickness of each end plate being at least 20 micrometers thick; aligning the edges of the top and bottom end plates with the edge of the metal foil layer stack and pressing or compressing the metal foil layers together between the top and bottom end plates; and welding the metal foil layer stack and the top and bottom end plates together using a penetration weld.