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: 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: 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: 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: 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.