Samsung Sdi Co., Inc.

Kwangchun Kim

Jeongman Park

Junho Lee

Junsun Yong

Sangsok Jung

Dongsik Yoon

Yiseop Ahn

Jongpil Jegal

Kyounghan Kim

Moonhong Han

Seongdae Ji

Cheolwoo Shim

Ji Seongdae

Shim Cheolwoo

Park Jeongman

An electrode assembly includes a first electrode plate including a first electrode current collector and a first electrode active material layer thereon, a second electrode plate including a second electrode current collector and a second electrode active material layer thereon, a separator between the first electrode plate and the second electrode plate, a first electrode tab coupled to the first electrode current collector, and a second electrode tab coupled to the second electrode current collector, wherein a region of the first electrode current collector including the first electrode tab faces a wound first electrode plate, wherein a region of the second electrode current collector including the second electrode tab faces a wound second electrode plate, and wherein the second electrode active material layer is only on one surface of the second electrode current collector in a region preceding a first winding turn of the second electrode plate.

Electrode assembly and secondary battery having the electrode assembly

Disclosed are a current interrupting device and a secondary battery including the same. According to an embodiment, a current interrupting device comprises a first terminal; a second terminal; a fuse coupled to the first and second terminals; and a fuse body surrounding an exterior of the fuse to seal the fuse, wherein the first and second terminals include thin portions connected to the fuse, and the thin portions have a thickness less than a thickness of other portions of the first and second terminals.

Current interrupting device and secondary battery including current interrupting device

A secondary battery including an electrode assembly having a positive electrode plate, a negative electrode plate and a separator being wound together, a can for receiving the electrode assembly; the can having an opening. A cap assembly includes a cap plate having an electrolyte injection hole, the cap assembly sealing the opening of the can. A lead plate is welded to an exterior-facing surface of the cap plate so as to cover the electrolyte injection hole and a protection circuit board is electrically coupled to the cap assembly. At least one positioning member is located to be aligned with at least one edge of the lead plate, the at least one positioning member defining a region for receiving the lead plate.

Secondary battery

Growing community of inventors

Yongin-si, South Korea

Kwangchun Kim