BATTERY AND METHOD OF MANUFACTURING SAME

An internal terminal is disposed inside a battery case and so as to be spaced apart from the battery case. An external terminal is disposed outside the battery case and spaced apart from the battery case, and the external terminal is connected to the internal terminal through a terminal mounting hole. An electrically insulating resin is disposed so as to fill a gap between the battery case and the internal terminal and a gap between the battery case and the external terminal, and the electrically insulating resin is joined to the battery case, to the internal terminal, and to the external terminal. At least one of the internal terminal and the external terminal includes a protruding portion protruding into the terminal mounting hole, and the internal terminal and the external terminal are joined to each other at a tip of the protruding portion.