Abstract: Discussed are a metal plate for resistance welding and a resistance welding method using the same, wherein the metal plate is for being resistance-welded to an electrode terminal of a cylindrical battery, and the metal plate includes a body; and a pair of protrusion units located spaced apart from each other by a predetermined distance, the pair of protrusion unit being provided at one side surface of the body, and a slit is formed between the pair of protrusion units.

Abstract: Discussed is a bolting device including an operation part disposed on a table; a jig disposed on the table to contact an object to be bolted in which a bolt hole is defined, the jig including a through-hole for guiding a bolt to the bolt hole; a guide inserted to the through-hole, the guide having a hollow shape to accommodate the bolt therein, the guide having an inclined inner surface with a shape having an internal diameter that gradually decreases in a downward direction to maintain verticality of the bolt, and the guide further having a portion cut in a movement direction of the bolt so that the inner surface is elastically opened when the bolt is moved downward; and an elastic part in contact with an outer circumferential surface of the guide to elastically support a surrounding portion of a cut portion of the guide.

Abstract: The present disclosure relate to a base material assembly including a first base material made of a conductive material, a second base material made of a conductive material, spaced apart from the first base material to face the first base material, and coupled with the first base material by riveting, a plurality of emboss members each protruding from an inside surface of the second base material to point-contact a plane of an inside surface of the first member, and the first base material and the second base material are mechanically and electrically connected through the plurality of emboss members.

Abstract: Discussed is a welding rod inspection apparatus for measuring whether a welding rod is deformed and an inspection method using the same, and more particularly a welding rod inspection apparatus including a plurality of measures configured to be brought into contact with a predetermined position of a lower end of the welding rod and a support die configured to support the plurality of measurers. The plurality of measurers can be located so as to be spaced apart from each other by a predetermined distance, and each of the plurality of measurers or the support die can be provided with a pressure sensor configured to measure a pressure applied to the plurality of measurers. An inspection method using the plurality of measurers is also discussed.

Abstract: Disclosed is a bolting torque determination method which includes a preparation process of preparing samples of an object and samples of a bolt, a sample fracture torque acquisition process of measuring and acquiring a sample fracture torque, an effective fastening torque zone determination process of determining an effective fastening torque zone, in which fastening is performed without fracture, a bolt fastening angle measurement process of performing test fastening on the samples according to each of the plurality of selected experimental torques and measuring bolt fastening angles, and a bolting torque determination process of determining a bolting torque, whereby a rotation angle of each of the sample bolts is measured from a predetermined reference point of time to a point of time when the test fastening is finished.

Abstract: Discussed is a a process automation system including: a cell transferor configured to transfer battery cells; a cell inspector configured to measure an open circuit voltage of each battery cell in units of a preset number of battery cells and to sort out qualified battery cells and defective battery cells; a frame transferor configured to transfer module frames of a battery module to insert the qualified battery cells; a cell discharger configured to load and discharge the defective battery cells; and a gripper configured to pick up one or more battery cells from any one device among the cell transferor, the cell inspector, the frame transferor, and the cell discharger, and transport the one or more battery cells to another device.

Abstract: Discussed is an electrode lead cutting apparatus for battery cells, the electrode lead cutting apparatus including a cell fixing unit configured to fix a battery cell, an electrode lead fixing unit configured to supply air to an electrode lead of the battery cell in order to fix a point of the electrode lead to be cut, and an electrode lead cutting unit configured to cut the point of the electrode lead to be cut.

Abstract: Discussed is a flexible printed circuit board bending apparatus for battery cells, the flexible printed circuit board bending apparatus including: a die comprising a horizontal body and a support wall configured to receive a battery cell having a flexible printed circuit board exposed outwards from one side of the battery cell; a bending guide unit located at one side of the die; and a bending unit located at the one side of the die, wherein the bending unit comprises: a stationary body; a turning body connected to the stationary body, the turning body being configured to be turnable by a predetermined first angle; and a board seating portion connected to the turning body, the board seating portion having a board seating groove formed therein, and being configured to receive the flexible printed circuit board.

Abstract: Discussed are a metal plate for resistance welding and a resistance welding method using the same, wherein the metal plate is for being resistance-welded to an electrode terminal of a cylindrical battery, and the metal plate includes a body; and a pair of protrusion units located spaced apart from each other by a predetermined distance, the pair of protrusion unit being provided at one side surface of the body, and a slit is formed between the pair of protrusion units.

Abstract: Disclosed herein is a jig for assembly of a battery module, the jig including a housing having a first accommodation portion configured to accommodate a battery cell and a second accommodation portion disposed so as to be spaced apart from the first accommodation portion, the second accommodation portion being configured to accommodate a circuit board in the state of being spaced apart from the battery cell, wherein the battery cell is accommodated in the first accommodation portion, and the circuit board is accommodated in the second accommodation portion, whereby the orientation of the circuit board with respect to the battery cell may be maintained.

Abstract: Discussed is an electrode lead cutting apparatus for battery cells, the electrode lead cutting apparatus including a cell fixing unit configured to fix a battery cell, an electrode lead fixing unit configured to supply air to an electrode lead of the battery cell in order to fix a point of the electrode lead to be cut, and an electrode lead cutting unit configured to cut the point of the electrode lead to be cut.

Abstract: Disclosed herein is a jig for assembly of a battery module, the jig including a housing having a first accommodation portion configured to accommodate a battery cell and a second accommodation portion disposed so as to be spaced apart from the first accommodation portion, the second accommodation portion being configured to accommodate a circuit board in the state of being spaced apart from the battery cell, wherein the battery cell is accommodated in the first accommodation portion, and the circuit board is accommodated in the second accommodation portion, whereby the orientation of the circuit board with respect to the battery cell may be maintained.