Samsung Sdi Co., Inc.

Eunjoong Lee

Daehyeong Yoo

Miae Um

Hanjun Wang

A battery pack includes: a battery cell including an electrode assembly connected to an electrode tab, and first and second casings facing each other and coupled to each other to form an accommodation portion accommodating the electrode assembly and to form a terrace portion extending across the electrode tab to seal the accommodation portion, the terrace portion including a first surface on the first casing and a second surface on the second casing; a protective circuit module electrically connected to the battery cell and on the first surface of the terrace portion; and a current breaking device electrically connected to the protective circuit module to form a charge-discharge path of the battery cell and on the second surface of the terrace portion. The current breaking device limits charge-discharge current in response to the battery cell's abnormal state such as overheating, and does not spatially interfere with the protective circuit module.

Battery pack

An embodiment of the present disclosure provides a battery pack including: a battery cell including an electrode assembly and a casing, the casing accommodating the electrode assembly therein and forming a terrace from which an electrode tab electrically connected to the electrode assembly protrudes; a protective circuit module seated on the terrace, the protective circuit module including a thermal cut-off member located on a side of the terrace and a connection tab electrically connected to the electrode tab; and insulating tape located between the battery cell and the protective circuit module, wherein the insulating tape provides insulation between the electrode tab and the protective circuit module and between the terrace and the thermal cut-off member.

A battery pack includes a battery cell and a protection circuit module. The battery cell includes i) an electrode assembly to which an electrode tab is connected and ii) first and second cases coupled to face each other to form an accommodating portion accommodating the electrode assembly and a sealing portion sealing the accommodating portion. The sealing portion includes i) a terrace portion extending across the electrode tab and comprising a first surface on a first case side and a second surface on a second case side and ii) a side sealing portion including an end contacting the terrace portion and an extension extending from the end. The protection circuit module is arranged on the first or second surface of the terrace portion. The end of the side sealing portion is folded in such a way not to spatially interfere with the protection circuit module.

A battery pack includes one or more battery cells including a plurality of electrode tabs, a protective circuit module connected to the electrode tabs of the one or more battery cells, a frame accommodating the battery cells and the protective circuit module, and a protective tape covering the protective circuit module and the electrode tabs, a first surface of the protective tape including a plurality of grooves corresponding to the electrode tabs.

A battery pack includes a battery cell having an electrode tab and a protective circuit module electrically connected to the electrode tab. The protective circuit module has a first surface in an assembling direction of the electrode tab and a second surface opposite the first surface. The electrode tab is separated from the first surface. Therefore, the battery pack has an improved connection structure between the battery cell and the protective circuit module, and short circuits can be prevented or substantially prevented.

A battery pack includes at least one battery cell, a protection circuit module electrically connected to the at least one battery cell, and a frame including the at least one battery cell and the protection circuit module. The battery pack also includes a label adjacent to the at least one battery cell, protection circuit module, and frame. The label includes a noise preventing portion in a direction different from a lengthwise direction of the frame.

Growing community of inventors

Yongin-si, South Korea

Eunjoong Lee