Lg Chem, Ltd

Hosang Kwon

Yongho Cho

Seunghyun Bang

Hakjun Lee

Gi-Hwan Kwon

Disclosed herein is a connection member for secondary batteries to achieve the electrical connection in a battery pack including two or more cylindrical secondary batteries in a physical contact manner, the connection member including an outer circumferential contact part contacting an electrode terminal of a lower battery cell along the outer circumferential region of the electrode terminal of the lower battery cell, such that the outer circumferential contact part can be electrically connected to the electrode terminal of the lower battery cell in a surface contact manner and a central contact part contacting an electrode terminal of an upper battery cell or the central region of a sidewall of the battery pack for providing an elastic contact force to the entire connection member mounted between the electrode terminals of the respective battery cells or between the electrode terminals of the battery cells and the sidewall of the battery pack.

Electrical connecting member for secondary battery

Disclosed herein is a battery pack constructed in a structure in which a plurality of secondary battery cells are electrically connected to one another via a connection member while the secondary battery cells are mounted in a receiving part of a pack case having no partition, wherein the connection member is located between the battery cells arranged in the longitudinal direction or in both the longitudinal direction and the lateral direction, the connection member is connected, in a mechanical coupling manner, to a lower electrode terminal of the front battery cell in the longitudinal direction and/or to an upper electrode terminal of the rear battery cell in the longitudinal direction, and the connection member is elastically pressed while the connection member is located between the battery cells.

Secondary battery pack based on mechanical connection manner

Disclosed herein is a connection member for secondary batteries to achieve the electrical connection in a battery pack including two or more cylindrical secondary batteries in a physical contact manner, the connection member including an outer circumferential contact part contacting an electrode terminal of a lower battery cell along the outer circumferential region of the electrode terminal of the lower battery cell, such that the outer circumferential contact part can be electrically connected to the electrode terminal of the lower battery cell in a surface contact manner, for minimizing the change of resistance at the contact region against an external force and restraining a possibility that the electrode terminal of the lower battery cell is depressed, and a central contact part contacting an electrode terminal of an upper battery cell or the central region of a sidewall of the battery pack for providing an elastic contact force to the entire connection member mounted between the electrode terminals of the respective battery cells or between the electrode terminals of the battery cells and the sidewall of the battery pack.

Growing community of inventors

Seongnam-si, South Korea

Hosang Kwon