A battery pack includes: a plurality of unit cells arranged side by side in a first direction and each comprising a first terminal and a second terminal to improve the durability and safety of the battery pack; a protection circuit module disposed on the plurality of unit cells; and a temperature element unit disposed on the plurality of unit cells in the first direction and comprising a first temperature element, a second temperature element, a first plate connecting the first temperature element and the second temperature element, and a second plate having an end electrically connected to the protection circuit module and another end electrically connected to the first plate disposed between the first temperature element and the second temperature element.

The invention relates to rechargeable battery (1) having at least one cell (3) for storing electrical energy and at least one heating device (2) for heating or controlling the temperature of the cell (3), said heating device (2) comprising a single-layer or multi-layer film (4, 9) with at least one heating element.

An energy storage system comprising at least one energy storage module adapted to supply electrical energy to a hybrid vehicle. The energy storage module comprises an enclosure, at least one battery array located within the enclosure, and an energy storage controller module located within the enclosure and electrically connected to the battery array. The energy storage module further comprises a compliant tipped thermistor which may be installed within a flexible clip. The thermistor is positioned to monitor the temperature of one or more of the batteries within the energy storage system.

An energy storage system comprising at least one energy storage module adapted to supply electrical energy to a hybrid vehicle. The energy storage module comprises an enclosure, at least one battery array located within the enclosure, and an energy storage controller module located within the enclosure and electrically connected to the battery array. The energy storage module further comprises a compliant tipped thermistor which may be installed within a flexible clip. The thermistor is positioned to monitor the temperature of one or more of the batteries within the energy storage system.

One embodiment provides a battery pack including a housing, a plurality of battery cells supported by the housing, and a terminal block. The terminal block is configured to be coupled to a power tool to provide operating power from the plurality of battery cells to the power tool. The terminal block has a positive power terminal, a charging terminal, and a ground terminal. The battery pack also includes a charging circuit provided between the charging terminal and the plurality of battery cells. The charging circuit is configured to receive and transfer charging current above 12 Amperes to the plurality of battery cells during charging. The charging circuit includes a charging switch and a fuse coupled between the charging terminal and the charging switch.

Discussed is a battery back that includes: a plurality of battery modules that includes a battery cell stack, a module frame for housing the battery cell stack, and a heat sink located under a bottom part of the module frame; a pack frame that houses the plurality of battery modules; and a refrigerant transfer bolt that fastens the bottom part of the module frame, the heat sink, and the pack frame, wherein the pack frame includes a pack refrigerant pipe for supplying and discharging refrigerant, wherein a connection pipe for connecting the pack refrigerant pipe and the heat sink is formed through the refrigerant transfer bolt, and wherein the refrigerant transfer bolt includes an opening/closing member that opens or cuts off the connection pipe in response to a temperature of the refrigerant.

An apparatus for detecting a defect of a battery pack may disconnect a battery cell at which a defect is detected inside a battery pack to remove a risk factor that may occur from the corresponding battery cell. Risk factors that may cause explosions can be eliminated by discharging the battery cell at which a defect is detected. In addition, the recurrence of the risk factor can be prevented in advance by disconnecting the battery cell at which the defect is detected from the battery pack.

An apparatus for detecting a defect of a battery pack may disconnect a battery cell at which a defect is detected inside a battery pack to remove a risk factor that may occur from the corresponding battery cell. Risk factors that may cause explosions can be eliminated by discharging the battery cell at which a defect is detected. In addition, the recurrence of the risk factor can be prevented in advance by disconnecting the battery cell at which the defect is detected from the battery pack.

A first battery of a battery system can include a thermoelectric component (TEC) that produces electric energy from thermal energy that the first battery generates. The TEC is used to charge a second battery of the battery system, while maintaining proper thermal conditions for the first battery. The battery system can be used to support information technology (IT) equipment by acting as backup power during a power outage, and/or to provide supplemental power under peak power conditions.

A protective device for an electronic component is connected to an interface and includes a compensation element connected in series with the electronic component. The compensation element has a positive temperature coefficient of its electrical resistance. The compensation element is connected to a pole or measuring contact of an electrical energy accumulator. The electronic component and the compensation element are thermally coupled to one another.