Patent ID: 6190798
Filing Date: 2001-02-20
Classification: H01M,Y02E

Abstract:
A sealed battery, comprising:an outer case of metal having an opening portion;a power generation element held in the outer case and having positive and negative electrodes between which a separator is sandwiched;a cover member of metal joined by welding to the opening portion;an electrode terminal electrically connected to the power generation element;an injection port formed in the cover member, through which an electrolyte is injected into the outer case;a sealing member inserted into the injection port to seal the same hermetically; anda sealing cover joined by laser welding to the cover member or in order to block the injection port;wherein a pressing member is provided between the power generation element and the inner surface of the cover member to hold the power generating element in place, and wherein one end of the pressing member is receded a predetermined dimension from the injection port.