A secondary battery including external terminals provided on an outer side of a sealing plate of a battery case, lead terminals provided on an inner side of the sealing plate, the lead terminals connected to the external terminals being fixed to the sealing plate, collector members disposed on the inner side of the sealing plate, the collector members being connected to the lead terminals, and pluralities of collector tabs connected to a positive electrode plate and a negative electrode plate at an end portion of an electrode body. The pluralities of collector tabs are connected to the collector members, and the electrode body is accommodated inside the battery case while having the pluralities of collector tabs be in a bent state in an inner space defined by the sealing plate.