SECONDARY BATTERY

A conductive member () is disposed near a side of the sealing plate () facing the inside of a battery with a first insulating member () disposed therebetween. The conductive member () has a conductive-member opening portion (f) at a side facing the electrode assembly. An inserting portion (b) of a positive electrode terminal () is inserted through a third terminal-receiving hole (c) in the conductive member () and connected to the conductive member (). The conductive-member opening portion (f) of the conductive member () is sealed by a deformation plate (), and the deformation plate () is connected to a first positive-electrode current collector (a), which is electrically connected to positive electrode plates. The conductive member () includes a pressing projection (e) that projects toward the first insulating member () from a portion thereof that faces the first insulating member ().