Samsung Sdi Co., Inc.

Eun-Ok Kwak

Jeong-Deok Byun

Kyung-Won Seo

Jong-Wook Yoon

Byoung-Ju Kim

Kyung-Ho Park

Seok Koh

Young-Cheol Jang

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.

Battery pack and battery module comprising the same

A high voltage connecting terminal for a power supply with improved insulating properties is disclosed. The high voltage connecting terminal may include a power connecting portion having a base plate mounted at one side of a conducting case in which a first opening and a first fastening hole are formed and a power connecting terminal formed to protrude at one side of the base plate, an insulating member interposed between the conducting case and the power connecting portion and having a third opening and a third fastening hole formed therein, and an insulating gasket mounted at the other side of the conducting case and having a fourth opening and a fourth fastening hole formed therein, the insulating gasket including a protruding portion formed along an outer circumference of the fourth opening so as to pass through the first opening.

High voltage connecting terminal for power supply

A battery pack including: a bare cell; a holder disposed at an end of the bare cell, having a connection groove on a side surface thereof; a protection circuit board seated in the holder; and an outer case disposed upon a side of the bare cell, having a connection protrusion mated with the connection groove, to secure the holder. Another battery pack includes: a bare cell including an electrode assembly and an cell case to accommodate the electrode assembly, including an outer casing and a inner casing, the cell case having a connection protrusion disposed at an edge of at least one of the outer and inner casings; a holder disposed at an end of the bare cell, having a connection groove to mate with the connection protrusion and thereby secure the holder; and a protection circuit board seated in the holder.

A battery unit and a battery pack including the battery unit having reduced resistance along the leads. The battery unit includes a battery unit including an electrode assembly arranged within a pouch and lead tabs extending to an outside of the pouch and being electrically connected to the electrode assembly, a frame to support the battery unit, the frame including a first portion to accommodate the pouch of the battery unit and a second portion to accommodate the lead tabs, lead members arranged between the lead tabs and the second portion of the frame and a plurality of coupling members to mechanically couple together the lead tabs, the lead member and the second portion of the frame.

Battery unit and battery pack having less resistance and improved contacts

A battery pack including: a bare cell having first and second electrode terminals; a holder positioned on a first side of the bare cell, comprising first fastening portions; a protective circuit assembly seated in the holder; and a cover to cover the protective circuit assembly and the bare cell, the cover including second fastening portions. In the battery pack, the first and second fastening portions are interlocked inside of the cover.

A protective circuit board and a battery pack using the protective circuit board broadens a mount region of a device and improves operability and processibility thereof. The battery pack comprises: a bare cell including a cap plate and an electrode terminal; and a protective circuit board positioned at the outside of the bare cell and formed of a flexible printed circuit board where a protection module, a positive temperature coefficient thermistor, and first and second power terminals are mounted. Accordingly, a space for mounting a number of protection devices and a space for forming a high current pattern are secured, and the work of mounting the protection devices and forming the high current pattern are easily performed. Furthermore, since any special structure for compensating a difference in the height of a protection device and an electrode terminal is not needed, the operability and processibility increase.

Protective circuit board and battery pack using the same

A power storage apparatus includes a main power line, a first battery rack connected to an output terminal of the main power line at a first distance from the output terminal, a second battery rack connected to an output terminal of the main power line at a second distance from the output terminal, the second distance being different from the first distance, and a load resistor connected between the second battery rack and the main power line, the load resistor having a resistance that adjusts an impedance difference between the first battery rack and the second battery rack, the impedance difference resulting from a difference between the first distance and the second distance.

Growing community of inventors

Yongin-si, South Korea

Eun-Ok Kwak