Lg Chem, Ltd

Dong Cheol Lee

Soo Jun Ahn

Hyung Ku Yun

Jae Hyeon Ju

Tae Wook Kim

Bum Jick Lee

Mi Geum Choi

Han Chul Kim

Jong Woon Choi

Ho Chol Nam

Ho Yul Jeong

Disclosed herein is a method of manufacturing a battery pack including a battery cell having an electrode assembly received in a battery case, made of a laminate sheet including a resin layer and a metal layer, together with an electrolytic solution. An upper case, a PCB, and a battery cell are simultaneously coupled to each other through a hot-melt process without using additional members, such as double-sided adhesive tape and a PCM case. In particular, a label can be removed from an embedded type battery pack. Consequently, it is possible to improve manufacturing efficiency and reduce manufacturing cost due to the reduction in the number of parts.

Method of manufacturing embedded type battery pack using hot-melt fixing structure and battery pack manufactured using the same

Disclosed herein is a secondary battery pack including an anode terminal and a cathode terminal of a battery cell connected to a protection circuit module (PCM), the anode terminal and the cathode terminal of the battery cell being made of plate-shaped conductive members, the battery cell having the anode terminal and the cathode terminal formed at one end thereof, the battery cell having a thermally bonded surplus part formed at the end thereof at which the anode terminal and the cathode terminal are formed, and the PCM including a protection circuit board (PCB) having a protection circuit formed thereon, an external input and output terminal connected to the protection circuit of the PCB, and an electrically insulative PCM case configured to have a hollow structure in which the PCB is mounted, the PCM case being provided with a slit, through which the electrode terminals of the battery cell are inserted, the PCM being loaded on the thermally bonded surplus part of the battery cell in a state in which the PCM is electrically connected to the battery cell.

Secondary battery pack having PCM

Disclosed herein is a battery pack configured to have a structure including a plate-shaped battery cell having electrode terminals formed at one side thereof including a sealed surplus part and a protection circuit module (PCM) mounted at the sealed surplus part, wherein each of the electrode terminals of the battery cell is made of a plate-shaped conductive member, the PCM includes a protection circuit board (PCB), a safety element electrically connected between one of the electrode terminals of the battery cell and the PCB or loaded on the PCB, an external input and output terminal electrically connected to a protection circuit of the PCB, and an electrically insulative module case in which the PCB and the safety element are mounted in a state in which the external input and output terminal extends outside, the module case includes a PCB receiving part open outward at one side thereof and at least one fixing part to mount the module case to the sealed surplus part of the battery cell, and the PCM is loaded on the sealed surplus part of the battery cell while being received in the module case in a state in which the PCM is electrically connected to the electrode terminals of the battery cell.

Battery pack having fixing part for PCM

A secondary battery pack is provided that includes a battery cell array configured to have a structure in which two or more battery cells, each of which includes electrode terminals and a thermally bonded surplus portion formed at the side thereof at which the electrode terminals are formed, are arranged side by side, a protection circuit module (PCM), the PCM being loaded on the thermally bonded surplus portions of the battery cells, a cartridge frame including two or more battery cell location parts for fixing the two battery cells, respectively, each of the battery cell location parts being formed in a frame shape, and a sheathing label attached to the cartridge frame such that the sheathing label wraps the cartridge frame in a state in which the battery cells, to which the PCM is connected, are fixed in the cartridge frame.

Secondary battery pack having battery cells mounted in cartridge frame

Disclosed herein is a method of manufacturing a battery pack including a battery cell having an electrode assembly received in a battery case, made of a laminate sheet including a resin layer and a metal layer, together with an electrolytic solution.

Battery pack manufacturing method using hot-melt fixing structure and battery pack manufactured using the same

Disclosed herein is a battery pack configured to have a structure including a plate-shaped battery cell having electrode terminals formed at one side thereof including a sealed surplus part and a protection circuit module (PCM) mounted at the sealed surplus part, wherein each of the electrode terminals of the battery cell is made of a plate-shaped conductive member, the PCM includes a protection circuit board (PCB), a safety element electrically connected between one of the electrode terminals formed at one side of the battery cell and the PCB or loaded on the PCB, an external input and output terminal electrically connected to a protection circuit of the PCB, and an electrically insulative module case in which the PCB and the safety element are mounted in a state in which the external input and output terminal extends outside, the module case is configured to have a structure in which two outer surfaces of the module case are open outward to form a first open surface and a second open surface, the module case is provided at an interior thereof with a PCB receiving part, and the PCM is loaded on the sealed surplus part of the battery cell in a state in which the PCM is received in the module case such that the PCM is electrically connected to the electrode terminals of the battery cell.

Battery pack having PCM case

Disclosed herein is a battery pack including an electrically insulative pack case. The battery pack includes a plate-shaped battery cell having an anode terminal and a cathode terminal formed at one side thereof including a sealed surplus portion, the battery cell being formed to have a planar quadrangular structure, a protection circuit module (PCM) electrically connected to the electrode terminals of the battery cell to control operation of the battery pack, the PCM being loaded on the sealed surplus portion of the battery cell, and a pack case applied to the sealed surplus portion of the battery cell, the PCM, and opposite sides of the battery cell in a thermally molten state and solidified, the pack case being configured to have a structure to cover the sealed surplus portion of the battery cell, the PCM, and the opposite sides of the battery cell in a state in which the top and bottom of the battery cell are open.

Battery pack having electric insulating pack case

Disclosed herein is a secondary battery pack including a battery cell having a cathode terminal and an anode terminal formed on one surface including a sealed portion to seal the battery cell and a protection circuit module (PCM) including a protection circuit board (PCB) having a protection circuit formed thereon, an external input and output terminal electrically connected to the protection circuit, a connector electrically connected to the external input and output terminal, and an electrically insulative PCM case in which the PCB is mounted, wherein the PCM is loaded on the sealed portion in a state in which the PCM is electrically connected to the battery cell and the connector is formed on the PCM such that the connector does not protrude outward from the secondary battery pack.

Growing community of inventors

Daejeon, South Korea

Dong Cheol Lee