Abstract:
A battery module according to the present invention includes rechargeable batteries that include a first terminal and a second terminal which protrude outward, the first terminal including differentiation portions formed of an indentation or a protruding portion to differentiate the first terminal from the second terminal; and connection members that electrically connect the rechargeable batteries, fixed to the first and second terminals of adjacent rechargeable batteries, including verification portions which fit the differentiation portions so as to improve assemblability and minimize contact resistance.
Abstract:
A rechargeable battery that prevents a concentration of stress on a coupling portion of a lead tab and a cap assembly at a time of bending the lead tab so as to not damage the coupling portion includes: an electrode assembly having a first electrode, a second electrode, and a separator interposed between the first and second electrodes; a case to receive the electrode assembly and having an open top portion; a cap assembly arranged on the top portion of the case; a lead tab having one end affixed to the cap assembly to electrically connect the cap assembly to the first electrode; and a stopper fixed to the cap assembly and having one end arranged on the lead tab, the stopper allowing a portion of the lead tab contacting the one end of the stopper to be bent when the lead tab is bent.
Abstract:
A secondary battery having a current interrupt device (CID) between a negative current collecting plate and a case of the secondary battery. The secondary battery includes: an electrode assembly including a positive electrode, a separator, and a negative electrode; a case housing the electrode assembly; a cap assembly coupled to the case for sealing the case; a positive current collecting plate connected to the positive electrode and the cap assembly; an insulator in the case adjacent an end plate of the case; and a negative current collecting plate connected to the negative electrode and the end plate of the case, the end plate being curved convexly toward an inner cavity of the case.
Abstract:
A battery includes a case housing an electrode assembly, the case having an opening for receiving the electrode assembly, a cap plate combined with the opening so as to close the case, a first insulator on an outer surface of the cap plate, an electrode terminal electrically connected to the electrode assembly, the electrode terminal extending through a first terminal hole in the cap plate and a second terminal hole in the first insulator, a first connection portion that mates the cap plate to the first insulator so as to oppose rotation of the first insulator relative to the cap plate, the first connection portion being eccentric with respect to a central line of the first terminal hole, and a second connection portion that mates the first insulator to the electrode terminal so as to oppose rotation of the electrode terminal relative to the first insulator.
Abstract:
A rechargeable battery includes an electrode assembly, a case housing the electrode assembly, an electrode terminal electrically connected to the electrode assembly and a cap plate sealing the case, the cap plate having an electrolyte injection opening. The electrolyte injection opening has a first opening having a first diameter and a second opening having a second diameter both defined by an inner wall of the cap plate, the second diameter being smaller than the first diameter, and a first guide portion between the first opening and the second opening. A sealing cap seals the electrolyte injection opening and includes a sealing member engaging the inner wall of the first opening and a fixing member coupled to the sealing member and engaging the inner wall of the second opening, wherein a portion of the fixing member is spaced from the inner wall of the second opening.
Abstract:
A rechargeable battery including: an electrode assembly that includes a positive electrode, a negative electrode, and a separator interposed therebetween; a case to house the electrode assembly; a cap assembly that is coupled to an opening of the case and electrically connected with the electrode assembly; and an insulating member that is installed between the case and the electrode assembly. The insulating member includes a body disposed on the electrode assembly and a rib that extends from the body and contacts the case.
Abstract:
A rechargeable battery that prevents a concentration of stress on a coupling portion of a lead tab and a cap assembly at a time of bending the lead tab so as to not damage the coupling portion includes: an electrode assembly having a first electrode, a second electrode, and a separator interposed between the first and second electrodes; a case to receive the electrode assembly and having an open top portion; a cap assembly arranged on the top portion of the case; a lead tab having one end affixed to the cap assembly to electrically connect the cap assembly to the first electrode; and a stopper fixed to the cap assembly and having one end arranged on the lead tab, the stopper allowing a portion of the lead tab contacting the one end of the stopper to be bent when the lead tab is bent.
Abstract:
A rechargeable battery including: an electrode assembly that includes a positive electrode, a negative electrode, and a separator interposed therebetween; a case to house the electrode assembly; a cap assembly that is coupled to an opening of the case and electrically connected with the electrode assembly; and an insulating member that is installed between the case and the electrode assembly. The insulating member includes a body disposed on the electrode assembly and a rib that extends from the body and contacts the case.
Abstract:
A rechargeable battery according to an embodiment of the present invention includes an electrode assembly, a case, electrode terminals, a cap plate, and current collecting plates. The electrode assembly includes a first electrode, a separator, and a second electrode. The case contains the electrode assembly. The electrode terminals are electrically connected to respective electrodes. The current collecting plates have support protrusions inserted into an interior of the electrode assembly, and welding protrusions welded to lateral ends of the electrode assembly.
Abstract:
The present invention relates to a rechargeable battery module. The battery module includes a plurality of unit batteries, a connecting member, and a pressure member. The plurality of unit batteries includes electrode terminals protruded from the unit batteries. The electrode terminals are inserted to a connecting member, and the connecting member includes a fitting portion including a gap on one side of the fitting portion, and a connecting part for connecting the fitting portions while having the gap between the connecting parts. The pressure member compresses the connecting parts so as to narrow a gap between the connecting parts.