Samsung Sdi Co., Inc.

Bong-Young Kim

Young-Ho Kim

Young-ho Kim

Susumu Segawa

Myung-Sup Seo

Ki-Ho Shin

Hidaka Takao

A battery pack is disclosed. In one aspect, the battery pack includes a battery unit including a plurality of main battery cells and an additional battery cell. The battery pack also includes a battery management system (BMS) configured to receive voltage information about the battery unit and control charging and discharging of the battery unit. The BMS includes at least one voltage measuring terminal configured to receive main voltage information about the main battery cell and an analog to digital converting terminal configured to receive additional voltage information about the additional battery cell.

Battery pack

A battery pack and a method of controlling the same. The battery pack includes: a first battery module that includes at least one battery cell; a second battery module that includes at least one battery cell electrically connected to the first battery module; a charge/discharge control unit that breaks or connects a charge/discharge path of each of the first battery module and the second battery module; a first battery management unit that controls the first battery module; and a second battery management unit that generates a signal for controlling switches included in the charge/discharge control unit by referring to a state of the second battery module, wherein the first battery management unit and the second battery management unit are connected in parallel to the charge/discharge control unit.

Battery pack and method of controlling the same

An apparatus for charging a battery of an electric device that has a motor by not charging the battery before the electric device is used and a method of charging a battery of an electric device that has a motor by using the apparatus. The apparatus includes a load, a motor for driving the load, a battery that provides a power supply to the motor, a generator that converts a kinetic energy that is generated by the motor to an electric energy, and a control unit that senses an amount of the load of the load and, if the amount of the load is less than a reference value, charges the battery by a first charging mode by using the electric energy output from the generator.

Apparatus and method for charging battery of electric device having motor

A battery pack including a battery including a battery cell, a first switching unit at a main current path between the battery and a terminal, a second switching unit at the main current path between the battery and the terminal, and serially coupled to the first switching unit, a third switching unit at a bypass current path coupled in parallel to at least a part of the main current path, and configured to block or to allow an electric current on the bypass current path, and a controller for dividing a charging section of the battery, and for controlling at least one of the first switching unit, the second switching unit, or the third switching unit according to divided charging sections to charge the battery.

A battery pack including a plurality of battery cell groups including a first battery cell group and a second battery cell group, a first switch that is connected to the first battery cell group, a second switch that is connected to the second battery cell group, and a controller configured to selectively control charging and discharging operations of the first battery cell group and the second battery cell group using the first switch and the second switch.

A battery pack includes a battery module including a battery cell and configured to perform a first identification function for enabling a device outside the battery module to recognize characteristics of the battery cell, and a battery management system for controlling operations of the battery cell and configured to perform a second identification function for enabling a device outside the battery management system to recognize a type of the battery management system.

System for recognizing type of battery management system and characteristics of battery cell

A battery pack includes a bare cell and a protection circuit assembly electrically connected to the bare cell. The protection circuit assembly includes a protection circuit board on which a protection module, a PTC thermistor, an external connection terminal, a first connection terminal and a second connection terminal are mounted. A first lead plate and a second lead plate are in contact with the first connection terminal and the second connection terminal, respectively. The protection circuit board defines opposite lateral edges and a first groove in each of the opposite lateral edges, and the first lead plate is exposed through the first groove.

Protection circuit assembly and battery pack having the same

A protective circuit board includes a printed circuit board, the printed circuit board including a first region and a second region, at least one safety device on the first region of the printed circuit board, the first region being thinner than the second region along a direction perpendicular to a contact plane between the printed circuit board and the safety device, and an external connection terminal on the printed circuit board.

Protective circuit board and battery pack using the same

A battery pack and a method of controlling the same are disclosed. According to some aspects, the battery pack includes at least one chargeable battery cell, and a charge control circuit that receives a control signal from an external source. The charge control circuit is configured to control charging of the battery cell according to the control signal. As a result, a charging operation may be stably performed.

A lead plate for connecting a printed circuit board (PCB) of a secondary battery to an bare cell includes a mounting portion connected to the PCB, a joint portion connected to the bare cell, a surface area of the joint portion facing the bare cell being smaller than a surface area of the mounting portion facing the PCB, and a step portion connecting the mounting portion and the joint portion to each other.

Lead plate with a mounting portion being heavier than its joint portion

Lead plate with a joint portion having a surface area smaller than that of its mounting portion

The secondary battery includes: a can, and electrode assembly disposed in the can; a protection circuit board disposed around an opening of the can, including an external connection terminal; a double-coated adhesive tape interposed between the can and the protection circuit board; a cap assembly including a cap-up, to seal the opening of the can; a first lead connected to the protection circuit board and welded to the cap-up; a second lead connected to the protection circuit board and welded to a bead of the can; and a top cover having a terminal hole corresponding to the external connection terminal.

Growing community of inventors

Yongin-si, South Korea

Bong-Young Kim