Cartridge for aerosol-generating system

A cartridge for an electrically operated aerosol-generating system, comprising:

• a liquid storage portion configured to store a liquid;
• a fluid permeable heating element, comprising a first surface and a second surface, the first surface being arranged in an upstream position configured to receive a liquid, and the second surface being arranged in a downstream position configured to release the liquid in vaporized form, wherein the fluid permeable heating element is flat-shaped;
• and
• a capillary body having a first elongated end and a second end, the first elongated end extending into the liquid storage portion configured to contact the liquid, the second end contacting the first surface of the heating element,
• wherein a cross sectional area of the capillary body at the second end is greater than a cross sectional area of the capillary body at the first elongated end,
• wherein the capillary body comprises capillary fibers at the first elongated end of the capillary body in a direction perpendicular to a plane of the fluid permeable heating element, and at the second end of the capillary body in a direction parallel to the plane of the fluid permeable heating element, and
• wherein the fluid permeable heating element further comprises a plurality of electrically conductive filaments and a part of the capillary fibers at the second end of the capillary body being aligned with the electrically conductive filaments of the fluid permeable heating element.