Abstract: There is provided a discharging unit configured to discharge a test battery as a test target in a preset environment, a data collection unit configured to select a preset number of points while the test battery is being discharged by the discharging unit and collect input data during the discharging process or within the selected points, a sensor unit configured to sense a voltage of the test battery, a preprocessing unit configured to preprocess the data collected by the data collection unit, a training unit configured to train an artificial intelligence learning model by performing training on a preset architecture using the data subjected to the preprocessing unit as an input value and a maximum battery available capacity as an output value, and a prediction unit configured to test an SoH of the test battery using the input value subjected to the preprocessing unit into the artificial intelligence learning model.

Abstract: Disclosed are a battery cell gripper and a battery cell transfer device including the same. A battery cell gripper includes a link frame that supports a configuration within the battery cell gripper, grip parts that are formed at one end of a grip body at a preset area and move away from or closer to each other to grip the battery cell, a hinge axis that allows the grip body to rotate around itself, an actuator, a panel that moves up and down by the actuator to adjust a gap between the grip parts and includes at least two guide grooves, and a grip projection that protrudes at the other end of the grip body or is connected in a protruding form and moves along the guide groove.

Abstract: Disclosed is an electrode lead gripper for a pressure activation device, and, in particular, an electrode lead gripper for a pressure activation device in which a current electrode terminal is configured to be stacked and mounted onto an electrode terminal base separately from a voltage electrode terminal and thus improved in contact reliability and increased in contact area in terms of contact with an electrode lead of a pouch type battery cell, thereby having advantages of decreasing contact resistance, reducing the amount of heat generated during charging/discharging, and resulting in further enhancing a charging/discharging efficiency.

Abstract: Disclosed is a pressure activation apparatus, and particularly to a pressure activation apparatus with a short-circuiting inspection section for a battery cell, in which a short-circuiting inspection, an activation process, and a charging and discharging process are sequentially and successively performed for a plurality of battery cells within a single pressure activation apparatus, and thus there is no need to separately build short-circuiting inspection equipment, thereby reducing the maintenance, efforts and costs of performing the short-circuiting inspection process, the pressure activation process and the charging and discharging process for the battery cell, and reducing unnecessary waste of space, time, costs, etc. to build the separate equipment.

Abstract: Disclosed is a pressure activation apparatus, and particularly to a pressure activation apparatus with a transfer unit that transfers a plurality of secondary battery cells accommodated in a tray to a buffer in once or twice, so that the control and mechanism for the transfer can be simplified, thereby reducing costs, facilitating maintenance, significantly shortening time taken in loading the plurality of battery cells, and, consequently, flexibly expanding and operating the number and arrangement of pressure jigs to perform a pressure activation process.

Abstract: A cylindrical secondary battery degassing device, in particular, a cylindrical secondary battery degassing device in which gas generated during charging and discharging processes of a cylindrical secondary battery is suctioned and discharged through a vacuum suction module moving along with a charging-and-discharging probe pin being in contact with electrodes of the cylindrical secondary battery to charge and discharge the cylindrical secondary battery, thereby improving a process efficiency in manufacturing the cylindrical secondary battery, preventing the performance deterioration of the cylindrical secondary battery, and reducing time, efforts and costs for the degassing.

Abstract: Disclosed is a pressure activation apparatus with a degassing unit, in particular, a pressure activation apparatus with a degassing unit, in which gas generated in a pressure activation process for a plurality of pouch-type battery cells respectively mounted to a plurality of pressure units is removed through one movably provided degassing unit, thereby improving a process efficiency in manufacturing the pouch-type battery cell, and reducing time, efforts and costs for the degassing.

Abstract: Disclosed is a zero-voltage discharge circuit device, in particular, a zero-voltage discharge circuit device configured to discharge a secondary battery while relevant switching elements are kept continuously turned on without being repeatedly turned on and off in a discharge mode of the second battery, so that the discharge circuit can be configured with low withstand voltage switching elements, and is configured to generate a charging current and a discharging current by just selectively turning on the switching elements without changing an operating voltage, thereby reducing power loss in charging and discharging, and simplifying a control operation for the charging and the discharging.

Abstract: Disclosed is an electrode lead gripper for a pressure activation device, and, in particular, an electrode lead gripper for a pressure activation device in which a current electrode terminal is configured to be stacked and mounted onto an electrode terminal base separately from a voltage electrode terminal and thus improved in contact reliability and increased in contact area in terms of contact with an electrode lead of a pouch type battery cell, thereby having advantages of decreasing contact resistance, reducing the amount of heat generated during charging/discharging, and resulting in further enhancing a charging/discharging efficiency.

Abstract: Carbon dioxide is supplied from a carbon dioxide cylinder (15) to a pressure vessel (13) through reducing valves (18 and 19). The pressure vessel (13) is also supplied with a sodium hypochlorite water solution having a desired concentration through a material supply pipe (12). The material supply pipe (12) is connected to first and second branch pipes (100 and 101) through a distribution valve (102). The sodium hypochlorite water solution supplied through the material supply pipe (12) is partially sprinkled to a gas-phase region in the pressure vessel (13) through the first branch pipe 100, while the remainder of the sodium hypochlorite water solution is supplied to a liquid-phase region in the pressure vessel (13) through the second branch pipe (101). The pressure vessel (13) is provided with a liquid level retention mechanism (25 to 29) is provided to retain the liquid level in the pressure vessel (13) within a constant range.

Abstract: Disclosed coaxial connector comprises (A) a pin having a soldering section to be soldered to a central conductor of the coaxial cable and a contact section extending from the soldering section and electrically interconnected to a male connector, (B) a dielectric block having a cylindrical portion including a through hole to which the pin is inserted, a body of chamfered structure and being connected to the cylindrical portion, and a cover leg extending from the body in an opposite direction from the cylindrical portion, and (C) a main body having a cylindrical portion including a hole for receiving the dielectric block to which the pin is inserted, a fastening flap for holding the coaxial cable, and a body electrically interconnected to the ground conductor of the coaxial cable.