Samsung Sdi Co., Inc.

Byoung-Ju Kim

Jeong-Deok Byun

Eun-Ok Kwak

Jong-Wook Yoon

Kyung-Won Seo

A secondary battery including: a battery unit including a battery cell and a lead tab that protrudes from the battery cell; a frame case for supporting the battery unit and including a first support portion for supporting the battery cell and a second support portion for supporting the lead tab; and a connection member for perforating a connection hole formed in the lead tab and extending in a direction of the second support unit, wherein the connection hole of the lead tab includes: a first connection hole that is spaced apart from a first edge of the lead tab by a first width; and a second connection hole that is spaced apart from a second edge of the lead tab by a second width. The secondary battery may reduce electrical resistance of a charge/discharge path and has improved efficiency.

Secondary battery

A case for a battery cell includes a heat radiation unit, a terminal unit, and an insulating frame interlocked with the heat radiation unit and the terminal unit to form the case. The heat radiation unit and the terminal unit are integrated by the insulating frame so that it is possible to prevent the heat radiation unit or the terminal unit from being separated from the case.

Battery pack

A battery pack having a battery cell and a case accommodating the battery cell and including a terminal portion that is electrically connected to the battery cell. The terminal portion includes a first groove portion for attaching a temperature sensor for obtaining temperature information of the battery cell.

Growing community of inventors

Yongin-si, South Korea

Byoung-Ju Kim