Patent ID: 8617739

Claim:
Galvanic cell, comprising: a current conductor; a casing which at least partially surrounds the galvanic cell; and a contact area that is assigned to the casing, in which the casing is at least partially connected with the current conductor, wherein the casing comprises at least one first layer and one second layer, the material of the first layer and the material of the second layer are different from each other in respect to at least one chemical substance at least one of the layers of the casing comprises at least one first material and at least one second material, the second material has a higher module of elasticity than the first material, the second material is realized in the shape of fibers, the fibers are connected with the first material at least partially in material engagement, the fibers are at least partially connected with each other forming a first elongated entity, and a plurality of said first elongated entities are essentially arranged in the direction of a tensible force.