Sealed rechargeable battery and manufacturing method of the same

The present invention relates to a sealed secondary battery, which electrode group with the electrolyte housed in a battery container constituted of a metallic bottomed case and the sealing plate, wherein an electrode group consisting of a positive electrode material is attached to the positive electrode current collector the positive electrode plate and a negative electrode material on a negative electrode plate is attached to the negative electrode current collector are wound through the partition of the diaphragm. The sealing plate is composed of: a metal filter in the internal configuration of the terminal, the housing overlap caused by overcharging safety mechanism for blocking the current path and the gas pressure within the battery is discharged to the outside of the abnormality, the resin liner pad and a metal cap composed of an external terminal of the terminal cover, and the inner liner to the resin sandwiched manner, peripheral portions of the metal filter of the caulking seal. Because the metal filter made of a metal over the entire inner housing member made of a metal mesh are joined by welding, it is possible to obtain a sealed secondary battery, which includes a high output power and high-current discharge necessitate small impedance and the sealing plate .