Abstract: A secondary battery, includes a bare cell including an upper surface having an electrode terminal and side surfaces perpendicular to the upper surface; and a first coverlay and a second coverlay electrically connected to the bare cell, the side surfaces including a pair of first side surfaces that are in parallel with each other, and a pair of second side surfaces connecting the pair of first side surfaces to each other and having a smaller area than that of the pair of first side surfaces, the first coverlay including a first region on the upper surface, and a second region bent perpendicularly from the first region and on one of the pair of the second side surfaces, the second coverlay including a third region on the first region, and a fourth region bent perpendicularly from the third region and on the second region.

Abstract: A battery pack includes a plurality of battery units. Each battery unit includes a can, an electrode assembly accommodated in the can and including a first electrode plate, a second electrode plate, and a separator between the first and second electrode plates, and a cap plate closing the can. The battery units are arranged side by side in a first direction. A protective circuit module is placed on the battery units and electrically connected to the battery units. An upper cover is placed on the protective circuit module; and a lower cover is positioned under the battery units and opposite the upper cover. The lower cover includes shock preventing portions protruding outward at both ends thereof.

Abstract: A secondary battery is disclosed. In one aspect, the battery includes a bare cell having a substantially prismatic shape, a first terminal located in a first region of a first surface of the bare cell and a second terminal located in a second region of the first surface of the bare cell. The battery also includes a first insulation tape located between the bare cell and the first terminal, wherein the first insulation tape covers the first surface of the bare cell, and second and third surfaces of the bare cell extending in a direction that crosses the first surface of the bare cell. The battery also includes a second insulation tape located between the first insulation tape and the first terminal.

Abstract: A rechargeable battery is disclosed. In one aspect, the battery includes first and second battery cells facing each other and a case comprising first and second insertion portions, into which the first and second battery cells are respectively inserted. The case also includes a circuit accommodator formed between the first and second insertion portions and accommodating a protection circuit configured to control charging and discharging operations of the first and second battery cells.

Abstract: A secondary battery is disclosed. In one aspect, the battery includes a bare cell having a substantially prismatic shape, a first terminal located in a first region of a first surface of the bare cell and a second terminal located in a second region of the first surface of the bare cell. The battery also includes a first insulation tape located between the bare cell and the first terminal, wherein the first insulation tape covers the first surface of the bare cell, and second and third surfaces of the bare cell extending in a direction that crosses the first surface of the bare cell. The battery also includes a second insulation tape located between the first insulation tape and the first terminal.

Abstract: A secondary battery is disclosed. In one aspect, the battery includes first and second battery cells facing each other and a case comprising first and second cell accommodators respectively at least partially accommodating the first and second battery cells, and a circuit accommodator formed between the first and second cell accommodators and accommodating a protection circuit configured to control charging and discharging operations. The circuit accommodator has top and bottom surfaces opposing each other, and each of the first and second cell accommodators has top and bottom surfaces opposing each other. The top surface of the circuit accommodator has a downward step with respect to the top surfaces of the first and second cell accommodators.

Abstract: A battery pack is disclosed. In one aspect, a battery pack includes a plurality of battery units arranged in a first direction, each battery unit including first and second side surfaces opposing each other and a third side surface crossing the first and second side surfaces. The battery pack also includes a lower cover placed on the third side surfaces, wherein the lower cover includes a bottom plate facing the third side surfaces, a plurality of first ribs extending from the bottom plate toward the first side surfaces, and a plurality of second ribs extending from the bottom plate toward the second side surfaces and separate from each other, wherein the first rib extends in the first direction so as to at least partially cover the first side surfaces.

Abstract: A battery pack that can easily combine battery cells stacked in a plurality of layers with each other and easily combine the battery cells with protection circuit devices while reducing manufacturing costs and while providing a compact design suitable for powering small electronic devices such as mobile phones and tablet PCs. The battery pack includes a plurality of first battery cells electrically connected to a first circuit board, a plurality of second battery cells electrically connected to a second circuit board, the second circuit board being electrically connected to the first circuit board and a circuit module electrically connecting the first and second circuit boards to an outside.

Abstract: A battery pack includes a region spaced a certain distance apart from a hole of a battery case. The region is different in surface roughness from the other regions of the battery case, and thus, a forming error of the hole may be visually detected, so as to decrease a condition setting time for controlling the forming error.

Abstract: A battery pack is disclosed which can inhibit unwanted electric short-circuits between a secondary battery and a thermal safety device. The battery pack may be further configured such that the number of welding points is reduced, simplifying a manufacturing process for the battery pack. The battery pack may include a secondary battery including a case having a first polarity, a terminal protruding from the case having a second polarity opposite to the first polarity, a safety member including an insulating holder mounted in the case around the terminal, a thermal safety device, and a conductive plate. The thermal safety device may be mounted in the insulating holder and electrically connected to the terminal. The conductive plate may be electrically connected to the thermal safety device and mounted in the insulating holder around the thermal safety device.

Abstract: A battery pack includes a region spaced a certain distance apart from a hole of a battery case. The region is different in surface roughness from the other regions of the battery case, and thus, a forming error of the hole may be visually detected, so as to decrease a condition setting time for controlling the forming error.

Abstract: Disclosed is a battery pack that makes it possible to decrease a lead time of an insulating tape attaching process, and re-attach an insulating member. The battery pack includes a plurality of battery cells, a protection circuit module that controls charging and discharging of the battery cells, a first connecting plate electrically connecting the battery cells to each other, a second connecting plate electrically connected to the first connecting plate, and bent from the first connecting plate; and an insulating member disposed between the battery cell and the first and second connecting plates. The insulating member includes a first region placed between neighboring ones of the battery cells, and a plurality of second regions that are bent from the first region and are placed on outer surfaces of the neighboring battery cells, respectively.

Abstract: A rechargeable battery pack including a cap cover through which a protection element may be easily mounted and a coupling terminal which is integrally manufactured when forming the cap cover includes: a bare cell having an electrode terminal; a cap cover coupled to a leading side of the electrode terminal of the bare cell, and on which a through hole is formed; a first coupling terminal attached to an external side of the cap cover; and a protection element accommodated in the cap cover, electrically connected to the electrode terminal via a first coupling lead, and electrically connected to the first coupling terminal via the through hole by a second coupling lead.

Abstract: A battery pack is disclosed which can inhibit unwanted electric short-circuits between a secondary battery and a thermal safety device. The battery pack may be further configured such that the number of welding points is reduced, simplifying a manufacturing process for the battery pack. The battery pack may include a secondary battery including a case having a first polarity, a terminal protruding from the case having a second polarity opposite to the first polarity, a safety member including an insulating holder mounted in the case around the terminal, a thermal safety device, and a conductive plate. The thermal safety device may be mounted in the insulating holder and electrically connected to the terminal. The conductive plate may be electrically connected to the thermal safety device and mounted in the insulating holder around the thermal safety device.

Abstract: A battery pack that can easily combine battery cells stacked in a plurality of layers with each other and easily combine the battery cells with protection circuit devices while reducing manufacturing costs and while providing a compact design suitable for powering small electronic devices such as mobile phones and tablet PCs. The battery pack includes a plurality of first battery cells electrically connected to a first circuit board, a plurality of second battery cells electrically connected to a second circuit board, the second circuit board being electrically connected to the first circuit board and a circuit module electrically connecting the first and second circuit boards to an outside.

Abstract: A secondary battery including a bare cell. The bare cell includes an exposed electrode tab and a lead line welded to the electrode tab and configured to electrically connect the bare cell to a device electrically connected to the lead line. The lead line includes a welding region and a lead region excluding the welding region. The lead line is welded to the electrode tab in the welding region. The welding region includes a first layer and a second layer. The second layer has a higher electrical conductivity than the first layer.

Abstract: A rechargeable battery pack including a cap cover through which a protection element may be easily mounted and a coupling terminal which is integrally manufactured when forming the cap cover includes: a bare cell having an electrode terminal; a cap cover coupled to a leading side of the electrode terminal of the bare cell, and on which a through hole is formed; a first coupling terminal attached to an external side of the cap cover; and a protection element accommodated in the cap cover, electrically connected to the electrode terminal via a first coupling lead, and electrically connected to the first coupling terminal via the through hole by a second coupling lead.