Galvanic cell for an accumulator

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.