Patent ID: 8617755

Claim:
A fuel cell, comprising a separator disposed between two electrolyte-electrode units, wherein the separator is formed from two plates, a first and a second plate, each plate having embossings, and the plates touching each other at contact surfaces, wherein the embossings are formed as circular depressions, and wherein the embossings of the plates are offset relative to one another such that one circular depression of the first plate is connected to three circular depressions of the second plate by an overflow section, thereby forming a reticulated cooling chamber structure covering an entire surface of the separator; a first fluid chamber for a coolant is formed between the two plates and a second fluid chamber for a gas is formed between each plate and an adjacent electrolyte-electrode unit in each case; and the first fluid chamber for the coolant has two subchambers, each subchamber facing one of the two plates, where the subchambers are arranged adjacent and non-planar to each other and are separated by a central plane comprising an overflow section configured to direct the coolant flow alternately through the two non-planar subchambers.