Lg Chem, Ltd

Sangkwon Nam

Tae-Wook Kim

Juhwan Baek

Jinhyun Ryu

Ju-Hwan Baek

Sukjin Song

JinHyun Ryu

A secondary battery pack is provided. The secondary battery pack has a structure in which a protection circuit module (PCM) is mounted to a top of a plate-shaped battery cell having electrode terminals formed at an upper end thereof, the PCM includes a printed circuit board (PCB) having a protection circuit formed thereon, a safety element electrically connected between one of the electrode terminals of the battery cell and the protection circuit of the PCB, an external input and output terminal electrically connected to the protection circuit of the PCB, and an electrically insulative module case to cover the PCB and the safety element in a state in which the external input and output terminal extends outside. The PCM is loaded on an upper end case extension portion of the battery cell in a state in which the PCM is electrically connected to the electrode terminals of the battery cell.

Secondary battery pack of embedded type with novel structure

Disclosed herein is a secondary battery pack including a battery cell including first and second electrode terminals of specific structures, a protection circuit module (PCM) including connection members A and B connected to the first and second electrode terminals and an electrically insulated top cap, wherein a connection portion of the connection member B connected to the second electrode terminal of the battery cell is located at the bottom of the PCB so that the connection member B is electrically connected to the second electrode terminal via the safety element, the connection member A is coupled to the bottom of the PCB in a state in which the connection member A protrudes from one end of the PCB in the lateral direction so that a connection portion of the connection member A connected to the first electrode terminal of the battery cell is exposed through a corresponding one of the through holes formed at the top cap, a coupling hole is formed at the protruding portion of the connection member A, and wherein coupling members are coupled into the respective coupling grooves of the battery cell through the through holes of the top cap in a state in which the PCM and the top cap are disposed at the top of the battery cell, and the connection member A is mechanically coupled and electrically connected to the first electrode terminal by a corresponding one of the coupling members.

Secondary battery pack of novel structure

Disclosed herein is a secondary battery pack including a battery cell having a first electrode terminal, a second electrode terminal and a pair of coupling grooves formed at the top of a battery case, a protection circuit module (PCM) including a protection circuit board (PCB), connection members A and B connected to the first electrode terminal and the second electrode terminal, respectively, and a safety element, and an electrically insulated top cap having through holes communicating with the respective coupling grooves.

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Cheongju-si, South Korea

Sangkwon Nam