Abstract: A battery pack comprises first and second battery cells stacked in a vertical direction and a safety device that connects a first electrode lead provided in the first battery cell to a second electrode lead provided in the second battery cell to allow current to flow therebetween or separates the first electrode lead and the second electrode lead from each other to break the current when the first and/or second battery cells swell due to overcharging and/or overcurrent. In particular, the safety device comprises a connection member that electrically connects the first and second electrode leads to each other and a movable member that linearly moves the connection member when the first and second battery cells swell and separates the first electrode lead and the second electrode lead from each other, thereby breaking the current.

Abstract: Disclosed herein is a pouch-shaped secondary battery including a battery case, an electrode assembly having a structure in which a positive electrode and a negative electrode are stacked in the state in which a separator is interposed therebetween, an electrode lead having an asymmetrical notch formed in a first surface of the electrode lead, the electrode lead being electrically connected to electrode tabs of the electrode assembly, the asymmetrical notch being configured to induce the rupture of the electrode lead, a lead film attached to the first surface and a second surface of the electrode lead, the lead film adhering the electrode lead to the battery case, the lead film including a first lead film located between the electrode assembly and the asymmetrical notch, and a second lead film located between the asymmetrical notch and a portion of the electrode lead that protrudes out of the battery case.

Abstract: A secondary battery comprises: a pouch; an electrode assembly mounted within the pouch and having a structure in which electrodes and separators are alternately laminated, the electrode assembly having a tab connection part in which electrode tabs extending from ends of the electrodes overlap each other; a lead comprising a first lead having one end electrically connected to the tab connection part and a second lead having one end electrically connected to the first lead and the other end extending outside of the pouch, each of the first lead and the second lead being fixed to respective portions of an inner surface of the pouch; an adhesion unit mechanically and electrically coupling the first lead and the second lead to each other; and a high-voltage decomposition material that is configured to generate a gas when a high voltage having a predetermined level or more is applied to the adhesion unit.

Abstract: Disclosed herein are a short circuit formation unit for mechanically cutting an electrode tab and/or an electrode lead of a pouch-shaped battery cell in order to secure the safety of the pouch-shaped battery cell when the pouch-shaped battery cell swells due to gas generated in the pouch-shaped battery cell while the pouch-shaped battery cell is in an abnormal state or when the pouch-shaped battery cell is overcharged, and a pouch-shaped secondary battery including the same. Current is prevented from flowing in the pouch-shaped secondary battery when the pouch-shaped secondary battery is overcharged or when the pouch-shaped secondary battery is in an abnormal state. In addition, a reduction in the energy density of the pouch-shaped secondary battery is prevented when a voluminous device is further provided in the pouch-shaped secondary battery.

Abstract: A current interrupt device, which may be included in a battery module, includes first and second connection parts each having one surface on which an inclined surface is formed; wherein the inclined surface of the first connection part and the inclined surface of the second connection part contact each other to form a contact interface, the first connection part and the second connection part are electrically connected to each other, and when an external force equal to or greater than a predetermined force is applied to the inclined surface of the first connection part or the inclined surface of the second connection part, the inclined surface of the first connection part and the inclined surface of the second connection part are dislocated with respect to each other on the contact interface to interrupt electrical connection between the first connection part and the second connection part.

Abstract: Disclosed herein are a short circuit structure for mechanically cutting an electrode tab and/or an electrode lead of a pouch-shaped battery cell in order to secure the safety of the pouch-shaped battery cell when the pouch-shaped battery cell swells due to gas generated in the pouch-shaped battery cell while the pouch-shaped battery cell is in an abnormal state or when the pouch-shaped battery cell is overcharged, and a pouch-shaped secondary battery including the same. Current is prevented from flowing in the pouch-shaped secondary battery when the pouch-shaped secondary battery is overcharged or when the pouch-shaped secondary battery is in an abnormal state. In addition, a reduction in the energy density of the pouch-shaped secondary battery is prevented when a voluminous device is further provided in the pouch-shaped secondary battery.

Abstract: A vehicle device includes: a communication device configured to transmit or receive a signal to or from a cloud server operating in conjunction with a service device of a parking lot upon entering the parking lot; and a controller configured to output parking lot information received from the cloud server upon entering the parking lot, and to identify charge settlement information of the parking lot from the cloud server to pay a settlement charge, when a predetermined charge settlement event occurs.

Abstract: A battery cell has an electrode assembly, including a positive electrode and a negative electrode stacked in the state in which a separator is interposed between the positive electrode and the negative electrode, is mounted in a pouch-shaped cell case, wherein electrode tabs protruding outwards from a plurality of electrode plates are coupled to a first lead end of an electrode lead, a second lead end of the electrode lead, which is an opposite end to the first lead end, is located on the outer surface of the cell case in the state of being parallel to the direction in which the electrode plates are stacked, and a lead body provided between the first lead end and the second lead end is located to face the outermost surface of the electrode assembly in the state of being maintained parallel to the direction in which the electrode plates are stacked.

Abstract: The present invention relates to a separator for a secondary battery which is capable of improving a shut-down function of a cellulose-based multilayer separator physically having high strength. The separator for a secondary battery comprises a substrate formed of cellulose-based nanofibers and polyethylene nanoparticles; and a resin layer stacked on one surface or both surfaces of the substrate, the resin being formed from a polyolefin.

Abstract: A pouch type secondary battery includes: an electrode assembly having an electrode including a positive electrode, a negative electrode, and a separator laminated therein; a battery case having a pouch shape to accommodate the electrode assembly; an electrode tab connected to the electrode and protruding from one side of the electrode; a first electrode lead having one end connected to the electrode tab; a second electrode lead having one end connected to the other end of the first electrode lead and the other end protruding to outside the battery case; and a connection part bonding the first electrode lead to the second electrode lead to connect the first and second electrode leads to each other. In at least one of the first and second electrode leads, a notch is on a bonding surface on which the first and second electrode leads are bonded together through the connection part.

Abstract: A pouch type secondary battery includes: an electrode assembly having an electrode including a positive electrode and a negative electrode and a separator laminated therein; a battery case having a pouch shape to accommodate the electrode assembly; an electrode tab connected to the electrode and protruding from one side of the electrode; a first electrode lead having one end connected to the electrode tab; a second electrode lead having one end connected to the other end of the first electrode lead and the other end protruding to outside the battery case; and a connection part bonding the first electrode lead to the second electrode lead to connect the first and second electrode leads to each other, wherein a first inclined surface is provided on at least one of the other end of the first electrode lead and the one end of the second electrode lead.

Abstract: A probe system for real-time quantitative and qualitative analysis of a biomaterial, and a reaction chamber with the probe system, and an analysis method thereof are provided. The probe system, which is included in the reaction chamber having an optically transmissive flat bottom surface and having a test sample accommodated therein, includes a target probe-reporter probe linker accommodated in the reaction chamber and including a target probe, which includes a sequence complementary to a target nucleic acid sequence to be detected, a first fluorophore and a first quencher, and a reporter probe linked to an end of the target probe and including a sequence non-complementary to the target nucleic acid sequence, and a capture probe included in a biochip formed on a bottom surface of the reaction chamber and including a complementary sequence hybridizable with the non-complementary sequence of the reporter probe, a second fluorophore and a second quencher.

Abstract: A method for rendering a three-dimensional (3D) image and an image outputting device that is configured to perform the method are provided. The method includes: loading a 3D screen; calculating a ray density of each region of the loaded 3D screen in order to generate a rendering map; rendering the 3D screen by using the rendering map; and outputting the rendered 3D screen.

Abstract: Disclosed herein is a pouch-shaped secondary battery in which a unit cell, including an electrode assembly having a positive electrode and a negative electrode stacked with a separator interposed therebetween, electrode tabs, and electrode leads, is mounted in a pouch-shaped case, wherein the pouch-shaped secondary battery includes a unidirectional structure through which electrode leads oriented in two opposite directions are connected to electrode terminals oriented in a single direction. In the case in which a battery pack is constituted using a bidirectional cell, a large space is required, whereby the energy density of the battery pack is reduced. The lifespan of a unidirectional cell is reduced due to heat generated from electrode leads and due to nonuniform use of active materials in the cell at the time of charging and discharging the cell. The disclosed pouch-shaped secondary battery has the effect of solving the above problems.

Abstract: Disclosed herein is a pouch-shaped secondary battery including an electrode lead using a conductive polymer, wherein the electrode lead is configured to be cut in order to secure the safety of a pouch-shaped battery cell when the pouch-shaped battery cell swells due to gas generated in the pouch-shaped battery cell while the pouch-shaped battery cell is in an abnormal state or when the pouch-shaped battery cell is overcharged. It is possible to prevent electric current from flowing in the pouch-shaped secondary battery when the battery is in an abnormal state and when the pouch-shaped secondary battery is overcharged. In addition, it is possible to prevent a reduction in the energy density of the pouch-shaped secondary battery in the case in which an additional complicated device is provided in the pouch-shaped secondary battery.

Abstract: Disclosed herein is a pouch-shaped secondary battery including an electrode assembly in which a positive electrode and a negative electrode are stacked with a separator interposed, an electrode lead electrically connected to electrode tabs of the electrode assembly, a pouch-shaped battery case made of a laminate sheet including an outer coating layer, a metal layer, and an inner sealant layer, and a lead box disposed on a sealed portion of the battery case for receiving the electrode lead. In particular, the electrode lead includes a lower electrode lead, which is electrically connected to the electrode tabs, and an upper electrode lead, a portion of which is coupled to the lower electrode lead.

Abstract: An electrode assembly, a rechargeable battery comprising the same, and a method for manufacturing the rechargeable battery are provided. The electrode assembly comprises an electrode stack in which a plurality of electrodes and a plurality of separators are alternately combined. The electrode assembly also comprises an electrode tab part including a plurality of electrode tabs respectively connected to the plurality of electrodes to extend from a side surface of the electrode stack. The electrode tab part comprises an inclined portion provided on a first side thereof and a tab collection portion provided on a second side thereof, the inclined portion extends from the side surface of the electrode stack and bent in a direction, in which the plurality of electrode tabs are collected, and the tab collection portion extends from the inclined portion and has a shape in which the plurality of electrode tabs are joined.

Abstract: A pouch type secondary battery includes an electrode assembly and a pouch sheath material including a first pouch portion and a second pouch portion. The pouch-type secondary battery includes dual electrode leads wherein a first electrode lead is attached to the first pouch portion and a second electrode lead is attached to the second pouch portion. In the pouch-type secondary battery, electric current is interrupted by using a volumetric swelling phenomenon caused by swelling or pressure generated upon overcharge so that the battery may be prevented from being further charged. In addition, when pressure is increased by an additional reaction, venting occurs toward the inner lead portion of each of the dual electrode leads. As a result, it is possible to increase the stability of a battery cell, module and a pack received in the pouch, and thus to improve the life of a battery.

Abstract: A battery pack comprises first and second battery cells stacked in a vertical direction and a safety device that connects a first electrode lead provided in the first battery cell to a second electrode lead provided in the second battery cell to allow current to flow therebetween or separates the first electrode lead and the second electrode lead from each other to break the current when the first and/or second battery cells swell due to overcharging and/or overcurrent. In particular, the safety device comprises a connection member that electrically connects the first and second electrode leads to each other and a movable member that linearly moves the connection member when the first and second battery cells swell and separates the first electrode lead and the second electrode lead from each other, thereby breaking the current.

Abstract: Disclosed herein is a pouch-shaped secondary battery including an electrode assembly in which a positive electrode and a negative electrode are stacked with a separator interposed, an electrode lead electrically connected to electrode tabs of the electrode assembly, a pouch-shaped battery case made of a laminate sheet including an outer coating layer, a metal layer, and an inner sealant layer, and a lead box disposed on a sealed portion of the battery case for receiving the electrode lead. In particular, the electrode lead includes a lower electrode lead, which is electrically connected to the electrode tabs, and an upper electrode lead, a portion of which is coupled to the lower electrode lead.