Secondary battery

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11258140
APP PUB NO 20190067668A1
SERIAL NO

16038823

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Importance

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Abstract

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Provided is a secondary battery, which can reduce defects of an uncoated portion of a current collector while ensuring a larger capacity and improving welding quality of the current collector. In one embodiment, the secondary battery includes a series of electrode assemblies each including a first electrode tab and a second electrode tab, a case accommodating the electrode assemblies, a cap plate coupled to the case at an opening in the case, a first current collector electrically connected to the first electrode tabs of the electrode assemblies, a second current collector electrically connected to the second electrode tabs of the electrode assemblies, and a first series of sub-tabs. A first sub-tab is coupled to the first electrode tab of a first electrode assembly, and a second sub-tab is coupled to the first electrode tab of a second electrode assembly. The first sub-tab is bent along a first boundary and the second sub-tab is bent along a second boundary.

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Patent Owner(s)

Patent OwnerAddress
SAMSUNG SDI CO LTDYONGIN-SI

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jang, Myung Jae Yongin-si, KR 3 11
Kwak, Seung Ho Yongin-si, KR 12 27

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