Bipolar plate having half plates of varying thickness and fuel cell stack having same

A bipolar plate for a fuel cell, the bipolar plate comprising:

• a first half plate having a first thickness;
• and
• a second half plate having a second thickness, the first half plate and the second half plate each being situated with a first half plate side facing a second half plate side, the first half plate forming a first flow field on a first half plate outer side opposite the first half plate side for a first operating medium and the second half plate forming a second flow field on a second half plate outer side opposite the second half plate side for a second operating medium,
• the first thickness of the first half plate being on average smaller, at least in sections, than the second thickness of the second half plate;
• wherein the first thickness of the first half plate is no more than 80% of the second thickness of the second half plate and wherein the first thickness of the first half plate is at least 0.06 mm and no more than 0.15 mm.