Patent ID: 8980467
Filing Date: 2015-03-17
Classification: H01M,Y02E

Abstract:
1. A storage battery, comprising: a container having at least one cell chamber; a lid body made of synthetic resin for covering a top opening of the container, the lid body having on a top surface, a recessed portion that is recessed downward and has a bottom surface on which at least one exhaust hole for communicating with the cell chamber is formed, the lid body having positive and negative electrode terminals disposed close to one side of the lid body and respectively at both end portions of said one side in a longitudinal direction, wherein the positive and negative electrode terminals respectively have lower portions embedded in the lid body and upper portions projecting from the lid body; and a lid body cover for closing the recessed portion to form a space, wherein electrode plates are housed in the cell chamber, and the recessed portion of the lid body has bushings to which electrode poles extending from the electrode plates are respectively inserted and welded: and conductive parts respectively connecting the corresponding terminal with the corresponding bushing, the conductive parts each being integrated with the corresponding bushing and the corresponding terminal to form a terminal body, and wherein the bushings are arranged in the space and the space is separated into a space for collecting gas exhausted from the exhaust hole and a space in which the bushings are arranged, wherein at least the lower portion of each of the bushings and each of the conductive parts are embedded in the lid body by insert molding, and wherein the lid body has a projection to prevent the lid body from being convexly deformed to the front side, formed at a location at which the upper portion of each of the terminals projects, at a location proximate to the location at which the upper portion of each of the terminals projects, or at each of these locations.