CID FILTER AND SECONDARY BATTERY COMPRISING THE SAME

Disclosed are a CID filter and a secondary battery comprising the CID filter. [0002] According to one aspect of the present invention, disclosed is a secondary battery in which a main through-hole and an auxiliary through-hole are defined in a body part of the CID filter, and the auxiliary hole is defined between an area of the CID filter, which is electrically connected to an electrode tab, and a CID gasket.