| Patent application number | Description | Published |
|---|
| 20090087732 | SECONDARY BATTERY - A secondary battery is provided including an electrode assembly having a positive electrode plate, a negative electrode plate, and a separator between the two plates. A can is provided for housing the electrode assembly, the can including depressions protruding inward from a side surface of the can, wherein the depressions contact an outer edge of the electrode assembly to prevent lateral movement of the electrode assembly within the can. A cap assembly is provided for sealing the can. | 04-02-2009 |
| 20090098445 | Cap assembly, secondary battery having the same, methods of manufacturing cap assembly and secondary battery - A secondary battery includes an electrode assembly, in which two electrodes and a separator interposed between the two electrodes are stacked and wound, a can accommodating the electrode assembly, and a cap assembly arranged on the top of the electrode assembly. The cap assembly includes an upper cap having a protrusion formed on a bottom surface thereof and a groove formed on a top surface thereof. The groove is formed at the same position as the protrusion but on an opposite surface from the protrusion. Components of the cap assembly are welded to the protrusion, and contact resistance between the welded components is reduced. | 04-16-2009 |
| 20090123831 | CAP ASSEMBLY AND SECONDARY BATTERY USING THE SAME - A cap assembly and a secondary battery using the cap assembly, the cap assembly including: a cap-up having a groove; a PTC thermistor disposed in the groove; and inner components disposed below the cap-up. The inner components can include a vent disposed under the cap-up; a cap-down disposed under the vent; a sub-plate disposed under the cap-down; and an insulating vent disposed between the vent and the cap-down The secondary battery includes: an electrode assembly; a can containing the electrode assembly, having an opening at one side; and the cap assembly to seal the opening of the can. | 05-14-2009 |
| 20090130552 | CAP ASSEMBLY AND SECONDARY BATTERY USING THE SAME - A cap assembly to prevent the leakage of an electrolyte and a secondary battery including the cap assembly. The cap assembly comprises a cap plate having an electrolyte inlet is formed, and an electrolyte inlet switch board to selectively cover the electrolyte inlet. The electrolyte inlet switch board can be shaped as a rectangular prism, can have a corrugated surface, or can have corrugations formed on two opposing surfaces. | 05-21-2009 |
| 20090136840 | SECONDARY BATTERY - A secondary battery comprising an electrode assembly including: a first electrode plate connected to a first electrode tab, a second electrode plate connected to a second electrode tab, and a separator disposed therebetween; a can having an opening, to house the electrode assembly; and a cap assembly to seal the opening. The first electrode tab has a reinforcement portion. The first electrode tab has a welding portion connected to the cap assembly and a bent portion formed in the reinforcement portion, which is thicker than the welding portion. | 05-28-2009 |
| 20090297927 | CAP ASSEMBLY AND SECONDARY BATTERY HAVING THE SAME - A cap assembly and a secondary battery having the same, the cap assembly including a vent that breaks at a relatively low, uniform, breaking pressure. The vent includes a body, a connecting part that extends from an edge of the body and is bent towards the body, and a flange that extends from the connecting part and is bent away from the body. The connecting part is thinner than the body and the flange. The secondary battery includes an electrode assembly, a can to house the electrode assembly, and the cap assembly to seal the can. | 12-03-2009 |
| 20100136388 | CAP ASSEMBLY AND SECONDARY BATTERY USING THE SAME - A cap assembly for a battery and a battery incorporating the cap assembly. The cap assembly includes a plate that connects the electrodes of the bare cell of the battery. The cap assembly includes a vent member that includes a protrusion that is physically connected to the plate. Excess pressure within the bare cell results in the protrusion disconnecting from the plate thereby interrupting current. The vent further includes two circular notches, an inner notch and an outer notch. The vent further includes a cross notch that extends radially outward so as to intersect and extend beyond both the first and second notches. The notches are configured to release when the pressure within the bare cell exceeds a burst pressure. | 06-03-2010 |
| 20100159288 | CAP ASSEMBLY AND SECONDARY BATTERY HAVING THE SAME - Provided are a cap assembly for a secondary battery. The cap assembly includes a cap-up, a PTC thermistor disposed under the cap-up, a vent disposed under the PTC thermistor, and an insulating plate disposed between the vent and the cap-up and preventing contact between the vent and the PTC thermistor. Here, the vent includes a curling part bent to cover an external surface of the insulating plate. Further, the secondary battery includes an electrode assembly, a can accommodating the electrode assembly and having an opening, and the cap assembly which seals the can. | 06-24-2010 |
| 20100159310 | Cap assembly and secondary battery having the same - A cap assembly includes a cap-up and a safety vent wherein an end of the safety vent is bent to cover an end of the cap-up, a first thickness of a first region of the cap-up in contact with the end of the safety vent is smaller than a second thickness of a second region of the cap-up not in contact with the end of the safety vent. | 06-24-2010 |
| 20100216013 | CYLINDER TYPE SECONDARY BATTERY - A cylinder type secondary battery includes a can having an opening, an electrode assembly in the can, a cap assembly covering the opening of the can, an upper insulating plate between the electrode assembly and the cap assembly; a support plate on the upper insulating plate; the support plate having a peripheral edge, wherein an area of the support plate is smaller than an area of the upper insulating plate, and a first electrode tab extending from the electrode assembly, the first electrode tab having a first section contacting the support plate, a second section contacting the cap assembly, and a bent section between the first section and the second section, wherein a portion of the bent section protrudes from the peripheral edge of the support plate. | 08-26-2010 |
