Abstract: A method for manufacturing a gas diffusion layer for a fuel cell wherein carbon nanotubes are impregnated into Korean paper, thereby enhancing electroconductivity, and a gas diffusion layer manufactured thereby. The method for manufacturing a gas diffusion layer for a fuel cell which is to manufacture a gas diffusion layer as a constituent member of a unit cell in a fuel cell, includes a support preparation step of preparing a support with Korean paper; a dispersion preparation step of dispersing a carbon substance in a solvent to form a dispersion, a coating step of coating the support with the dispersion, and a thermal treatment step of thermally treating the dispersion-coated support to fix the carbon substance to the support.

Abstract: A battery pack according to an embodiment includes a case in which a plurality of battery cells are accommodated, and a battery management system (BMS) for detecting damage to the case, wherein the BMS includes a voltage output terminal for outputting a predetermined voltage, a ground terminal, and a voltage measurement terminal for measuring voltage, wherein the case includes a conductive member having a first end connected to the voltage output terminal of the BMS and a second end connected to the ground terminal of the BMS, and a sensing wire having a first end connected to the conductive member and a second end connected to a voltage measurement terminal of the BMS, the conductive member being provided between one surface inside the case and the other surface opposite to the one surface.

Abstract: Disclosed is a battery management apparatus capable of effectively reducing the current consumption of a component for waking up a microcontroller unit. The battery management apparatus includes a wake-up unit, a first power supply path, a first regulator, a first switching element, a feedback module, and a microcontroller unit configured to convert a sleep mode to a wake-up mode by receiving a wake-up signal from the wake-up unit and connected to the feedback module to turn off the first switching element.

Abstract: A battery management system according to the present disclosure is for a battery connected in parallel to a smoothing capacitor through a high side power line and a low side power line. The battery management system includes a discharge control switch connected between a first node and a second node of the low side power line, a temperature sensing circuit including a thermistor, wherein a first terminal of the thermistor is connected to the first node, a precharge switch connected to a precharge power line between a second terminal of the thermistor to the second node, and a control unit. The control unit is configured to turn off the discharge control switch and turn on the precharge switch, for precharging of the smoothing capacitor, when the control unit receives a key-on signal.

Abstract: A battery pack according to an embodiment of the present invention includes a (+) output terminal of the battery pack, a (?) output terminal of the battery pack, a (?) line connecting the (?) output terminal to a (?) terminal of a battery cell constituting the battery pack, a pre-charge FET provided on the (?) line, a system contact terminal configured to check whether the external system is connected, a battery management system (BMS), and a charge/discharge FET configured to charge or discharge the battery pack under a control of the BMS, wherein the pre-charge FET and the charge/discharge FET are connected in parallel.

Abstract: A method for preventing swelling of a battery cell in advance by counting a time while a temperature and a cell voltage of the battery cell are maintained equal to or greater than respective reference values, and by dropping a charging voltage to lower the temperature and the cell voltage of the battery cell, when the time is a reference time or longer.

Abstract: The present disclosure relates to an algorithm for controlling an output specification of a charger according to a battery usage pattern, more particularly, to an algorithm for analyzing a usage pattern of a battery built in a user's system through a self-analysis and controlling a battery charging scheme suitable for the analyzed pattern, thereby extending the service life of the battery.

Abstract: A method for preventing swelling of a battery cell in advance by counting a time while a temperature and a cell voltage of the battery cell are maintained equal to or greater than respective reference values, and by dropping a charging voltage to lower the temperature and the cell voltage of the battery cell, when the time is a reference time or longer.

Abstract: The present disclosure relates to an algorithm for controlling an output specification of a charger according to a battery usage pattern, more particularly, to an algorithm for analyzing a usage pattern of a battery built in a user's system through a self-analysis and controlling a battery charging scheme suitable for the analyzed pattern, thereby extending the service life of the battery.