Abstract: Discussed is a bolting device that effectively protects an internal configuration of a battery pack and increases manufacturing efficiency during a bolting operation. The bolting device for manufacturing a battery pack includes an electric screwdriver provided with a rotation motor; a driver bit connected to the rotation motor to enable a rotation movement and configured to rotate a bolt; a bit guide member provided with a hollow tube such that the driver bit is inserted into an inside of the hollow tube to be movable; and a guide jig provided with a main body configured to be mounted on an upper portion of a pack housing, the main body having a plate shape and having at least one through hole, and a fixing member inserted into the through hole and mounted therein, and having an insertion hole.

Abstract: A dielectric ceramic composition for multi-layer ceramic capacitor for use in extreme environments is formed by mixing a main compos it ion and a composite oxide for low-temperature sintering, where the main composition includes 96.0 to 99.0 wt. % of BaTiO3 and 1.0 to 4.0 wt. % of Nb2O5 and Co3O4 as an additive. The main composition is formed by per forming a heat treatment for synthesis to form a core-shell structure having the BaTiO3 as a core and the Nb2O5 and Co3O4 covering the sur face of the BaTiO3. The composite oxide for low-temperature sintering is at least one selected from BaV2O6, Ba3V4O13 and Ba4V2O9.

Abstract: Provided is a method of forming a micro/nanowire having a nanometer- to micrometer-sized diameter at predetermined positions of an object. The method includes: preparing a micro/nanopipette having a tip with an inner diameter which is substantially the same as the diameter of the micro/nanowire to be formed; filling the micro/nanopipette with a solution containing a micro/nanowire-forming material; brining the solution into contact with the object through the tip of the micro/nanopipette; and pulling the micro/nanopipette from the object at a pulling speed lower than or equal to a predetermined critical speed (?c) to obtain a micro/nanowire having substantially the same diameter as the inner diameter of the micro/nanopipette tip.

Abstract: Discussed is a battery pack manufacturing apparatus and method, and more particularly, a battery pack manufacturing apparatus allowing automatic production and having a minimized manufacturing defect rate. The battery pack manufacturing apparatus manufactures a battery pack having a pack housing and a battery module, and includes a lifting mechanism having a frame configured to mount the pack housing and a moving unit configured to move the frame so that the battery module is inserted into an inner space of the pack housing; and a module support configured to support the battery module.

Abstract: A battery cell weld portion inspection apparatus may include a coupling portion configured to be coupled to a connection member coupled to a weld portion of a battery cell, a shaft including a lower end coupled to the coupling portion, a spring disposed around an outer surface of the shaft, a sensor configured to measure a movement distance of the shaft, a sensing portion coupled to an upper end of the shaft, the sensor being configured to measure the movement distance of the shaft based on a position of the sensing portion, and a case configured to receive the shaft, the sensor, and the sensing portion.

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 secondary battery pack capable of improving process efficiency and reducing manufacture costs. The secondary battery pack includes a battery cell having an electrode terminal formed at a top end of a battery case; a protection circuit module having a battery cell connection terminal; and at least two terminal connection units having one end connected to the electrode terminal of the battery cell and the other end contacted and electrically connected to the battery cell connection terminal of the protection circuit module, wherein the battery case includes a battery can having an open top portion into which the electrode assembly is inserted, and a cap assembly coupled to the open top portion of the battery can, and wherein the cap assembly includes a body plate, and a connection slot is formed at a top surface of the body plate so that a portion of the terminal connection unit is inserted and accommodated therein to be electrically connected to the electrode terminal.

Abstract: A battery pack manufacturing device includes a transferring part for transferring a plurality of unit cells, an adjusting part for adjusting a position of a pack frame in which the unit cells are accommodated, and a vertical pressing part that vertically presses the unit cells accommodated in the pack frame. The transferring part includes a seating part on which the unit cells are seated. The unit cells are vertically dropped and mounted in accommodating parts of the frame when an opening and closing part of each seating part is opened.

Abstract: Discussed is a battery pack manufacturing apparatus and method, and more particularly, a battery pack manufacturing apparatus allowing automatic production and having a minimized manufacturing defect rate. The battery pack manufacturing apparatus manufactures a battery pack having a pack housing and a battery module, and includes a lifting mechanism having a frame configured to mount the pack housing and a moving unit configured to move the frame so that the battery module is inserted into an inner space of the pack housing; and a module support configured to support the battery module.

Abstract: Discussed is a bolting device that effectively protects an internal configuration of a battery pack and increases manufacturing efficiency during a bolting operation. The bolting device for manufacturing a battery pack includes an electric screwdriver provided with a rotation motor; a driver bit connected to the rotation motor to enable a rotation movement and configured to rotate a bolt; a bit guide member provided with a hollow tube such that the driver bit is inserted into an inside of the hollow tube to be movable; and a guide jig provided with a main body configured to be mounted on an upper portion of a pack housing, the main body having a plate shape and having at least one through hole, and a fixing member inserted into the through hole and mounted therein, and having an insertion hole.

Abstract: A battery pack case prevents moisture from being permeated into a battery pack with an easily assembled structure. The battery pack case includes an upper pack case and a lower pack case that are slidably coupled with each other. The upper pack case includes a coupling protrusion, and the lower pack case includes a coupling groove such that a bonding member is at portion at which the coupling protrusion and the coupling groove come into contact with each other.

Abstract: Disclosed is a secondary battery pack capable of improving process efficiency and reducing manufacture costs. The secondary battery pack includes a battery cell having an electrode terminal formed at a top end of a battery case; a protection circuit module having a battery cell connection terminal; and at least two terminal connection units having one end connected to the electrode terminal of the battery cell and the other end contacted and electrically connected to the battery cell connection terminal of the protection circuit module, wherein the battery case includes a battery can having an open top portion into which the electrode assembly is inserted, and a cap assembly coupled to the open top portion of the battery can, and wherein the cap assembly includes a body plate, and a connection slot is formed at a top surface of the body plate so that a portion of the terminal connection unit is inserted and accommodated therein to be electrically connected to the electrode terminal.

Abstract: Provided are a battery pack case and a method for manufacturing the same, and more particularly, a battery pack case which prevents moisture from being permeated into a battery pack and is easily assembled and a method for manufacturing the same.

Abstract: This invention has the following structures and features: unlocks only when pressing inner keys that correspond to the upper section or inclines of the key; deadlock structure which acts as a non-powered prevention method of coercive rotations; reducing the probability of equal key presence without altering the key size by inserting two or more inner keys for simultaneous pressurization and alignment. Due to the fact that digital door locks are prone to static electricity, high voltage, magnetic fields and surges, this invention can be utilized as a safe means of analog keys; in case of car door locks, this invention can be utilized as emergency keys. In addition, coercive rotation preventing features such as gears, twists and torque shares will prove to be very useful for all type of door locks such as deadlocks, cylinder or lever-type knobs as they provide three to fivefold stronger safety.

Abstract: A special kind of fastening device is disclosed. The fastening device of the present invention comprises several divided washer sections and a guide wire which are to be used in conjuction with a blind rivet or a bolt. This fastening device is used in order to place the washer on the back of a wall for fastening a bolt, etc., in the case where the said back of the wall is inaccessible in usual manner. Generally the divided washer sections are of the shape of a parallel-elliptical form or a parallelogram, and therefore, they can be passed easily through a small hole. After passing through the small hole, they can be assembled into a form of a nut, if the guide wire is pulled forward which is connecting through all the divided washer sections.