Nonaqueous electrolyte battery, rolled electrode assembly collector, layer-built electrode assembly collector, and method for manufacturing nonaqueous electrolyte battery collector

A nonaqueous electrolyte battery comprising:

• an electrode assembly, in which a positive electrode and a negative electrode are stacked with a separator therebetween,
• the positive electrode including a positive electrode active material layer containing a positive electrode active material and being disposed on the surface of a positive electrode collector formed from metal foil,
• the negative electrode including a negative electrode active material layer containing a negative electrode active material and being disposed on the surface of a negative electrode collector formed from metal foil, and
• the separator insulating the positive electrode from the negative electrode;
• and
• an electrolyte,
• wherein at least one of the positive electrode collector and the negative electrode collector has a compressed pattern portion
• which is disposed as a part of the metal foil and
• which has a thickness smaller than the thickness of the other portion through compression, and
• the compressed pattern portion is not disposed continuously in the directions of two groups of opposite sides of the metal foil.

A rolled electrode assembly collector comprising

• a compressed pattern portion,
• which is disposed as a part of a band-shaped metal foil and
• which has a thickness smaller than the thickness of the other portion through compression,
• wherein the compressed pattern portion is not disposed continuously in the short-side direction of the metal foil.