It is an object of the present invention to provide a battery in which current collecting connector 2 and 3 and groups 1d and 1e of metal foil of a power generating element 1 can be easily connected, respectively, and a method of manufacturing the same. First plate portions 2b and 3b which respective protruding ends of metal foil of the groups 1d and 1e of metal foil of the power generating element 1 come in contact with or close to and second plate portions 2c and 3c protruding from the first plate portions 2b and 3b toward the power generating element 1 and disposed only at one outer side portions of the groups 1d and 1e of metal foil are provided to the other portions of the current collecting connectors 2 and 3 of the invention and the groups 1d and 1e of metal foil are welded to the second plate portions 2c and 3c.