Aerosol-generating system and a cartridge for an aerosol-generating system having a two-part liquid storage compartment

An aerosol-generating system, comprising:

• a cartridge including,
• a storage compartment configured to contain a liquid, the storage compartment having a first portion and a second portion connected to one another by a liquid channel, the liquid channel being configured to communicate the liquid from the first portion to the second portion;
• an airflow passage passing between the first portion and the second portion of the storage compartment;
• and
• an aerosol-generating element on an end of the second portion, the aerosol-generating element being fluid permeable, the aerosol-generating element having a first side and a second side that oppose each other, the first side forming part of the airflow passage that is between the first portion and the second portion, the second side being in contact with the liquid from the second portion of the storage compartment, the storage compartment and liquid channel being configured to allow the liquid in the first portion to pass to the second portion through the liquid channel while the aerosol-generating system is in operational use;
• and
• a control body connected to the cartridge, the control body configured to control a supply of electrical power to the aerosol-generating element.