Honeycomb body for exhaust gas aftertreatment

A honeycomb body for an exhaust-gas aftertreatment unit, comprising:

• a plurality of layers stacked one on top of the other, wherein flow channels that run along an axial extent of the honeycomb body and can be flowed through in an axial direction are formed between the plurality of layers,
• wherein first structured layers of the plurality of layers have their structure formed by successive undulation peaks and undulation troughs,
• wherein protuberances are formed out of mutually adjacently arranged undulation troughs of a first structured layer in a direction of the undulation peaks belonging to a respective layer,
• wherein, mutually adjacently arranged protuberances of a first structured layer form a channel-like structure running in a circumferential direction of the honeycomb body in the first structured layer, into which channel-like structure a second structured layer is placed such that the second structured layer is fixed relative to the first structured layer in the axial direction,
• wherein the protuberances have an extent delimited in the axial direction of the honeycomb body, and
• wherein three second layers are arranged between two mutually adjacently arranged first structured layers, wherein one of the second layers is formed by an undulating intermediate layer, wherein the undulating intermediate layer lies at both sides on a second layer formed by a smooth layer and engages into the channel-like structures of the respective first structured layers.