Cylindrical type secondary battery
AssigneeSamsung SDI Co., Ltd.
InventorsDae Kim, Yong Cho
Life of this patent
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Abstract
A secondary battery having an upper battery assembly including an upper can housing a cap unit having an electrode terminal adapted to electrically connect to an external device and a gasket inserted between the cap unit and one end portion of the upper can for sealing and insulating the cap unit and the upper can. The secondary battery also has a lower battery assembly including a lower can housing an electrode assembly, the electrode assembly having a first electrode, a second electrode, and a separator interposed between the first electrode for preventing a short circuit between the two electrodes. A first electrode tap connects the first electrode to the cap unit and a second electrode tap connects the second electrode to the lower can.
Claims15
A secondary battery comprising:
- an upper battery assembly including an upper can housing a cap unit having an electrode terminal adapted to electrically connect to an external device and a gasket inserted between the cap unit and one end portion of the upper can for sealing and insulating the cap unit and the upper can;
- and
- a lower battery assembly including a lower can housing an electrode assembly, the electrode assembly having a first electrode, a second electrode, and a separator interposed between the first electrode and the second electrode for preventing a short circuit between the first electrode and the second electrode, the first electrode being connected to the cap unit and the second electrode being connected to the lower can.
A method of fabricating a can type secondary battery, the method comprising:
- forming an upper battery assembly having an electrode terminal in a cap unit, the electrode terminal adapted to electrically connect to an external device by:
- inserting a gasket into an upper can;
- installing the cap unit on the gasket;
- and
- combining the upper can with the cap unit by clamping the inside wall of the upper can towards the center of the upper can;
- forming a lower battery assembly by inserting an electrode assembly into a lower can, the electrode assembly having a first electrode, a second electrode, and a separator interposed between the first electrode and the second electrode for preventing a short circuit between the first electrode and the second electrode;
- and
- combining the upper battery assembly with the lower battery assembly.
Dependencies are inferred from the claim text.