Abstract: Disclosed is a jig for a secondary battery cell test, which can perform charging and discharging tests on various types of secondary battery cells by using one jig structure. The jig includes a main body, a first connection unit disposed in the main body and connected to a secondary battery cell, a second connection unit disposed to face the first connection unit, installed to be movable so that the second connection unit becomes close to or distant from the first connection unit, and connected to the secondary battery cell, a third connection unit disposed to neighbor the first connection unit and connected to the secondary battery cell, and a flexible connection unit including at least one flexible busbar that is deformable and configured to connect the second connection unit and the third connection unit so that the second connection unit and the third connection unit are electrically conductable.

Abstract: The present disclosure discloses a mandrel assembly structure for an apparatus for manufacturing a cell stack for a secondary cell, which can prevent an alignment failure of an electrode and damage to the electrode attributable to an assembly tolerance and moving deviation of a mandrel when a cell stack for a secondary cell is manufactured. The mandrel assembly includes a moving block, a mandrel mounting part provided with a mandrel and mounted on the moving block, a hinge part configured to rotatably couple the mandrel mounting part to the moving block, and a pressurization part configured to elastically pressurize one side of the mandrel mounting part so that the mandrel is tilted at a predetermined angle to an electrode plate.

Abstract: Disclosed is an expansion member for a probe for battery charging and discharging. The expansion member includes a first fluid accommodation part configured to form a space in which a fluid is introduced and stored and a fluid supply pipe equipped with a path along which the fluid is introduced and discharged and connected to the first fluid accommodation part. The first fluid accommodation part includes a first cover and a second cover. The first cover and the second cover are bonded together to form a first fluid accommodation space in which the fluid is accommodated. The first fluid accommodation space is surrounded by a first junction region in which the first cover and the second cover are bonded together. A penetration hole is formed on the top of the first junction region.

Abstract: The present disclosure provides a battery charging/discharging system capable of minimizing an amount of heat generated from a battery charger/discharger in a performance test process of a battery. The battery charging/discharging system according to the present disclosure includes a battery chamber in which a battery is mounted, a charger/discharger chamber forming a space isolated from the battery chamber and in which a charger/discharger configured to apply charging/discharging power to a battery is installed, an air conditioner configured to adjust a temperature in the battery chamber, and a charger/discharger cooling device installed inside the charger/discharger chamber and configured to cool the charger/discharger using air in a low-temperature state generated through heat exchange between refrigerant circulating therein and air circulating inside the charger/discharger chamber.

Abstract: The present disclosure provides a battery charging/discharging system capable of performing external air conditioning by using cooling ability of a charger/discharger therein.

Abstract: A contact module of a device for charging and discharging a battery is disclosed. The contact module includes: a first contact part copper plate and a second contact part copper plate disposed to be spaced apart from each other; a first air pocket and a second air pocket combined with inner side surfaces of the first contact part copper plate and the second contact part copper plate, respectively, and configured to expand or contract by a pneumatic pressure; and a support body disposed between the first air pocket and the second air pocket and configured to support the first air pocket and the second air pocket being spaced apart from each other.

Abstract: A jig for a battery charging and discharging test includes a first frame and a second frame which are disposed in parallel to each other so as to be spaced apart from each other. Two mounting rails are installed to protrude forward to connect the first and second frames, and have slit grooves open in directions facing each other. Each have an open side, such that the battery pack is mounted on the mounting rails through a rail-type structure. An anode unit and a cathode unit are arranged on either side of the mounting rails, and brought into contact with a first terminal and a second terminal of the battery pack coupled to the mounting rails, respectively. The jig can fix a battery at various angles to flexibly cope with various test environments, in order to perform a battery charging and discharging test.

Abstract: Proposed is a cell pressing module including a plurality of movement guiding units provided on both sides, respectively, of a pressing plate pressing against a battery cell, a movement guiding hole into which a plate moving shaft is inserted by passing-through being formed in each of the plurality of movement guiding units; and a link linking together the movement guiding units arranged adjacent to each other along a lengthwise direction of the plate moving shaft, and adjusting a separation distance between the movement guiding units, wherein both end portions of the link are supported on link fixation members, respectively, that are combined with external surfaces, respectively, of the movement guiding units that are arranged adjacent to each other.

Abstract: The present disclosure relates to a technical idea for efficiently using space of a power supply unit of a charging/discharging system by facilitating arrangement and design in a unit module. A modular high-precision charger/discharger sub-rack assembly structure includes: a base plate fixed in a state of being vertically erected to a sub-rack of a high precision charger/discharger; and at least one charger/discharger power supply unit or electrically or physically detachably attached to one surface of the base plate, configured to perform charging or discharging through bi-directional AC-DC conversion or bi-directional DC-DC conversion between a battery and a power source, including constituent circuits arranged in a first direction to have an elongated shape in the first direction and to perform charging or discharging, and arranged in parallel in a second direction perpendicular to the first direction on the base plate.

Abstract: Proposed are a cell pressing module and an apparatus for charging and discharging a secondary battery, the apparatus having the cell pressing module. The cell pressing module includes a pressing plate pressing against a battery cell, and a movement guiding unit in which a movement guiding hole into which a plate moving shaft is inserted by passing-through is formed, the movement guiding unit being combined with both sides of the pressing plate, wherein the pressing plate is configured to be detachably attached to the movement guiding unit.

Abstract: Proposed is an apparatus for charging and discharging a secondary battery, the apparatus including a support housing module that includes a first support frame, a second support frame and a second support frame, a screw support bracket provided between the first support frame and the second support frame that constitute one pair, a first moving screw, one end portion thereof being combined with the first support frame and the other portion thereof being combined with the screw support bracket, a second moving screw, one end portion thereof being combined with the second support frame and the other portion thereof being combined with the screw support bracket, a first pressing assembly being moved along a lengthwise direction of the first moving screw, and a second pressing assembly being moved along a lengthwise direction of the second moving screw, wherein pressure sensor units are provided on the first pressing assembly.

Abstract: Disclosed is an expansion member for a probe for battery charging and discharging. The expansion member includes a first fluid accommodation part configured to form a space in which a fluid is introduced and stored and a fluid supply pipe equipped with a path along which the fluid is introduced and discharged and connected to the first fluid accommodation part. The first fluid accommodation part includes a first cover and a second cover. The first cover and the second cover are bonded together to form a first fluid accommodation space in which the fluid is accommodated. The first fluid accommodation space is surrounded by a first junction region in which the first cover and the second cover are bonded together. A penetration hole is formed on the top of the first junction region.

Abstract: Disclosed is a jig for a battery charging and discharging test, which includes a first frame and a second frame which are disposed in parallel to each other so as to be spaced apart from each other; two mounting rails installed to protrude forward, configured to connect the first and second frames, and having slit grooves which are open in directions facing each other and each have an open side, such that the battery pack is mounted on the mounting rails through a rail-type structure; and an anode unit and a cathode unit which are arranged on either side of the mounting rails, and brought into contact with a first terminal and a second terminal of the battery pack coupled to the mounting rails, respectively. The jig can fix a battery at various angles to flexibly cope with various test environments, in order to perform a battery charging and discharging test.

Abstract: Disclosed is a charger and discharger of a battery. The charger and discharger includes a converter, the converter including a transformer, a first switching circuit configured to form a current path between the power source unit and a primary side winding of the transformer during a first delivery period, and a second switching circuit configured to form a current path between the battery and a secondary side winding of the transformer during a second delivery period, and the first switching circuit has a dead time period in which the current path between the power source unit and the primary side winding is not formed, and the converter is operated to form a length of a portion where the dead time period and the second delivery period overlap each other when the battery is discharged to be shorter than the length of the portion when the battery is charged.

Abstract: The present disclosure relates to a technical idea for efficiently using space of a power supply unit of a charging/discharging system by facilitating arrangement and design in a unit module. A modular high-precision charger/discharger sub-rack assembly structure includes: a base plate fixed in a state of being vertically erected to a sub-rack of a high precision charger/discharger; and at least one charger/discharger power supply unit or electrically or physically detachably attached to one surface of the base plate, configured to perform charging or discharging through bi-directional AC-DC conversion or bi-directional DC-DC conversion between a battery and a power source, including constituent circuits arranged in a first direction to have an elongated shape in the first direction and to perform charging or discharging, and arranged in parallel in a second direction perpendicular to the first direction on the base plate.