Battery and manufacturing method thereof

The present invention provides a method of manufacturing a battery, forming a flared portion at the open end of the battery casing, an annular holder portion disposed inside the flared portion, the annular insulating seal support mounted in said holder portion, It joined with one electrode from the current collector end portion of one electrode plate projecting electrode group, the current through the rising portion of Zhou Bian portion of the electrode to become disk-shaped annular flange with a stepped convex shape edge sealing body, such a disc-like annular flange flange-mounted on the bottom surface of the insulating gasket, the filter portion and the cap-shaped terminal portion are integrally joined to form the electrode collector, the current collector Zhou Bian flange portion of the disc-shaped flange member overlaps the sealing member, is inserted into swaging the inner seal ring and insulating the opening portion to fix them, so that by providing a high output can be achieved and cost reduction in this state, and purpose of improving the battery capacity.