Patent ID: 8288688

Claim:
A honeycomb body, comprising: at least one wound stack having a plurality of sheet-metal foils in electrical contact with one another in a configuration; said at least one wound stack having a first end; said at least one wound stack having a second end connected to electrical ground; an electrical terminal connected to said first end of said at least one stack; at least part of said sheet-metal foils having structures in a structure direction and said sheet-metal foils determining a height of said at least one stack in said structure direction; said at least one stack having a curvature section including at least one curvature with a relatively small radius of curvature and a relatively large radius of curvature and said at least one stack having other regions; said at least one stack forming at least one zone with increased electrical resistance in said curvature section, said at least one zone starting from said relatively small radius of curvature and extending over part of said height of said at least one stack; and at least one of said sheet metal foils, said configuration of said sheet metal foils or said electrical contact of said sheet metal foils with one another being changed in said curvature section as compared to said other regions to achieve an adapted current density in said curvature section over said height of said at least one stack and to achieve homogeneous heating in vicinity of said curvature section.