An electronic device includes a cell, a circuit board, and a cell protection unit. The circuit board is provided in the electronic device and configured to control the electronic device. The circuit board is electrically coupled to the cell, and the cell protection unit is provided on the circuit board. The cell protection unit is integrated with the circuit board, so as to facilitate heat dissipation of the cell, prolong the service life of the cell, speed up the production cycle of the cell, and reduce the production cost of the cell.

A separator for a lithium secondary battery, a method for manufacturing the same and a lithium secondary battery comprising the same, where the separator includes a porous polymer substrate having a plurality of pores and a polymer coating layer on at least one surface of the porous polymer substrate. The polymer coating layer comprises a thermosetting phenol-containing resin having at least one hydroxyl group and at least one aromatic ring. A coating amount of the thermosetting phenol-containing resin is 0.01 g/m.sup.2 to 3 g/m.sup.2 of the porous polymer substrate based on one polymer coating layer.

A battery pack includes a means configured to, when an abnormal phenomenon, such as fire outbreak or heat generation, occurs in a battery cell, prevent fire or heat from propagating to another battery cell adjacent thereto. The battery pack includes a plurality of battery cells, a case configured to receive the plurality of battery cells, an energy discharging means configured to discharge energy of the battery pack when the abnormal phenomenon occurs, and a fire extinguishing means configured to discharge aerosol at an operating temperature or higher in order to extinguish flames generated in the battery pack.

A system is provided to prevent the burning of a vehicle or human injury caused by a fire spread from a battery to a vehicle in the event of a fire in the battery. The battery release system includes a controller that outputs a control signal to release a battery pack from a vehicle to separate the battery pack therefrom when the controller determines that a fire occurs in the battery pack. A mounting structure is rotatably mounted to a body frame and supports the battery pack. A locking device is mounted to the body frame and the locking device locks the mounting structure supporting the battery pack to the body frame, and releases the locked state of the mounting structure in response to the control signal of the controller.

A battery pack may include a battery (60), a board (10), a first connection terminal (12), a second connection terminal (11), a control circuit (620), and a busbar (18). The first connection terminal is provided on the board and is configured to be connected to an electric work machine (500). The second connection terminal is provided on the board and is connected to the battery. The control circuit is provided on the board and is configured to control discharging of the battery. The busbar is provided on the board in a current discharge path between the first connection terminal and the second connection terminal.

A battery pack includes: a battery cell having a cell tab extending outwardly; a protection circuit module electrically connected to the cell tab to prevent over-charging and over-discharging of the battery cell; and a module case accommodating the protection circuit module and mounted on the battery cell, wherein the module case includes a first region, a second region positioned on the first region, and a third region extending from the first region through the second region, and the protection circuit module is accommodated in a cavity provided between the first region and the second region.

A disclosed film electrode includes an electrode base, and an active material layer formed on the electrode base, and a resin layer adhering to at least one of a peripheral portion of the active material layer and a surface of the active material layer in a direction extending along a plane of the electrode base.

The present invention provides a processing system (10) including an acquisition unit (11) that acquires measurement data indicating a state of a power storage device, an item value calculation unit (12) that calculates an item value affecting safety of the power storage device based on the measurement data, a safety determination unit (13) that determines the safety of the power storage device based on the calculated item value, and a certification unit (14) that outputs certification information certifying that the power storage device is safe, in a case where the determined safety satisfies a predetermined condition.

A system incorporating a smartphone comprising a smartphone and add-on device coupled to each other via combined data/power interface, wherein the smartphone comprises a rechargeable battery connected to battery protection circuitry and the add-on device optionally comprises a rechargeable battery connected to battery protection circuitry as well, the combined data/power interface comprises: one or more data pins for transferring data between the smartphone and the add-on device; one or more regulated power delivery pins; and one or more protected-battery power delivery pins, wherein the regulated power delivery pins are used to charge the battery of the smartphone from an external charger coupled to the add-on device, the batteries are connected to the battery protection circuitries that is configured to protect the battery by cutoff or limit the current or voltage on the battery electrodes, the protected-battery power delivery pins are connected to the battery protection circuitries of the smartphone or add-on device. The following power delivery paths are enabled: (1) the add-on device is powered by the battery of the smartphone through the protected-battery power delivery pins that are connected to the output of the battery protection circuitry of the smartphone. (2) the smartphone is powered by the battery of the add-on device through the protected-battery power delivery pins that are connected to the output of the battery protection circuitry of the add-on device, and (3) the batteries charge each other through the protected-battery power delivery pins that are connected to the output of the battery protection circuitries of smartphone and add-on devices.

A battery module includes a battery cell, and the battery cell includes a battery cell body, a first tab, a second tab, and a third tab. The first tab, the second tab, and the third tab are separately electrically connected to the battery cell body. The first tab and the third tab have a first polarity, and the second tab has a second polarity. Working together, the second tab and the first tab are capable of inputting a voltage and a current to the battery cell body or capable of outputting a voltage and a current from the battery cell body. Working together, the second tab and the third tab are capable of inputting a voltage and a current to the battery cell body or capable of outputting a voltage and a current from the battery cell body. The first polarity is different from the second polarity.