CORE PIN FOR A BATTERY

摘要

Improved batteries, such as rechargeable batteries, comprise an anode, a cathode, a separator between the anode and the cathode and a core pin. In some embodiments, the core pin comprises a flow channel in a direction along a major axis (102) of the core pin. Due to the presence of the flow channel, the improved batteries can have the ability to reduce the build up of undesirable gases within the cell, when combined with appropriate venting. In some embodiments, the flow channel can be provided through the interior of the core pin. In other embodiments, the flow channels can be created along the outer surface of the core pin with a core pin having protrusions that define indentations (106) around the perimeter of the pin. The core pin can be made of a polymer.