Abstract: A curable composition includes a curable resin and a magnetic body, wherein the magnetic body comprises magnetic particles and a surface treatment agent present on a surface of the magnetic particles. The curable composition has low viscosity, and fluidity, and capable of effectively cured without causing curing shrinkage or the like to form a cured product having desired physical properties.

Abstract: An energy storage system includes a plurality of trays holding battery packs, each tray having a tray controller, and a switch to set an identification code to the tray, and a rack accommodating the plurality of trays, the rack having a rack controller, and fingers corresponding to each switch of the trays, the fingers selectively activating each switch when a corresponding tray is mounted on the rack.

Abstract: A battery module includes a battery block including a plurality of battery cells, each including a positive electrode terminal and a negative electrode terminal, and a vent between the positive electrode terminal and the negative electrode terminal and a middle cover including a plurality of bus-bars at one edge and at an other edge of the middle cover, the middle cover being connectable to the positive and negative electrode terminals. The middle cover may include a first barrier and a second barrier located such that the vent is between the first barrier and the second barrier and a third barrier between the bus-bars located at the other edge and the second barrier.

Abstract: An energy storage system includes a plurality of trays holding battery packs, each tray having a tray controller, and a switch to set an identification code to the tray, and a rack accommodating the plurality of trays, the rack having a rack controller, and fingers corresponding to each switch of the trays, the fingers selectively activating each switch when a corresponding tray is mounted on the rack.

Abstract: An energy storage system includes a plurality of trays holding battery packs, each tray having a tray controller, and a switch to set an identification code to the tray, and a rack accommodating the plurality of trays, the rack having a rack controller, and fingers corresponding to each switch of the trays, the fingers selectively activating each switch when a corresponding tray is mounted on the rack.

Abstract: A rechargeable battery module includes a plurality of unit battery cells and a bus bar interconnecting a first electrode terminal of a first unit battery cell of the unit battery cells and a second electrode terminal of a second unit battery cell of the unit battery cells, the first electrode terminal having a first plurality of surfaces, the second electrode terminal having a second plurality of surfaces, and the bus bar having a third plurality of surfaces, the first plurality of surfaces being configured to face and make surface contact with corresponding ones of the third plurality of surfaces, the second plurality of surfaces being configured to face and make surface contact with corresponding ones of the third plurality of surfaces, and the first, second, and third pluralities of surfaces facing along a plurality of directions.

Abstract: A battery module includes a battery block including a plurality of battery cells, each including a positive electrode terminal and a negative electrode terminal, and a vent between the positive electrode terminal and the negative electrode terminal and a middle cover including a plurality of bus-bars at one edge and at an other edge of the middle cover, the middle cover being connectable to the positive and negative electrode terminals. The middle cover may include a first barrier and a second barrier located such that the vent is between the first barrier and the second barrier and a third barrier between the bus-bars located at the other edge and the second barrier.

Abstract: Provided is a connection terminal including: a conductive plate including a connection unit having a ring shape, and an extension unit integrally formed with the connection unit and extending from one side of the connection unit; and a connection cable electrically connected to the conductive plate, wherein the conductive plate further includes a damping portion formed as a part of the extension unit and bent to protrude along a direction perpendicular to the connection unit.

Abstract: An energy storage system includes a plurality of trays holding battery packs, each tray having a tray controller, and a switch to set an identification code to the tray, and a rack accommodating the plurality of trays, the rack having a rack controller, and fingers corresponding to each switch of the trays, the fingers selectively activating each switch when a corresponding tray is mounted on the rack.

Abstract: A rechargeable battery module includes a plurality of unit battery cells and a bus bar interconnecting a first electrode terminal of a first unit battery cell of the unit battery cells and a second electrode terminal of a second unit battery cell of the unit battery cells, the first electrode terminal having a first plurality of surfaces, the second electrode terminal having a second plurality of surfaces, and the bus bar having a third plurality of surfaces, the first plurality of surfaces being configured to face and make surface contact with corresponding ones of the third plurality of surfaces, the second plurality of surfaces being configured to face and make surface contact with corresponding ones of the third plurality of surfaces, and the first, second, and third pluralities of surfaces facing along a plurality of directions.

Abstract: A sealing case includes a main body with an opening, the main body including a housing space therein, a cover configured to cover the opening of the main body, a first fastening portion along an outer circumferential portion of the opening of the main body, a second fastening portion on the cover and corresponding to the first fastening portion, and a sealing member interposed between the main body and the cover, the sealing member having a ‘U’ shape and being fitted between the first fastening portion on the main body and a second fastening portion on the cover.

Abstract: A sealing case including a main body, a cover and a sealing member is disclosed. The main body has a first surface opened to a housing space therein. The cover is disposed over the first surface. The sealing member is interposed between the main body and the cover. The main body includes a first fastening portion protruding toward the sealing member. The cover includes a second fastening portion protruding toward the sealing member. The first and second fastening portions are spaced apart from each other. The main body and the cover are coupled together to be water-tight.

Abstract: A battery pack includes a number of battery modules, a case, a circulation unit and a control unit. The case accommodates the plurality of battery modules therein. The circulation unit is positioned in the case so as to circulate heat generated from the plurality of battery modules. The control unit selects one or more of the number of battery modules and operates the circulation unit using power of the selected battery modules. Accordingly, the temperature equilibrium of the battery pack is implemented by conducting heat from a high-temperature battery module to a low-temperature battery module, so that it is possible to decrease the degree of deterioration and to extend the lifetime of the battery pack.

Abstract: Provided is a connection terminal including: a conductive plate including a connection unit having a ring shape, and an extension unit integrally formed with the connection unit and extending from one side of the connection unit; and a connection cable electrically connected to the conductive plate, wherein the conductive plate further includes a damping portion formed as a part of the extension unit and bent to protrude along a direction perpendicular to the connection unit.

Abstract: A battery unit and a battery module including a stack of a plurality of the battery units. The battery unit includes: a battery cell including electrode terminals; and a case for housing the battery cell, wherein the case includes: a spacer that is disposed on facing portions of an edge of the case and protrudes in a thickness direction of the case, an inlet guide portion for guiding air for cooling the battery cell, and an outlet guide portion for guiding air to be discharged toward the electrode terminals.

Abstract: A battery pack that includes a battery cell having a positive and negative electrode terminal extending from a side of the battery cell. The positive and negative electrode terminal each have a non-exposed surface and an exposed surface. The battery pack also includes a case that includes a first case and a second case. The first case includes a first terminal guide unit to accommodate the positive electrode terminal with the non-exposed surface of the positive electrode terminal facing the first terminal guide. The second case includes a second terminal guide unit that accommodates the negative electrode terminal. The non-exposed surface of the negative electrode terminal faces the second terminal guide. The first case and the second case are coupled together with the battery cell positioned between the first case and the second case.

Abstract: A valve assembly for preventing backflow and a battery case using the same is disclosed. In one aspect, the valve assembly for preventing backflow includes a first valve; a connection tube connected to the first valve and having at least one bent portion; and a second valve connected to the connection tube. In the valve assembly, the second valve is disposed so that the lowermost surface of the second valve is positioned lower than the lowermost surface of the first valve.

Abstract: A sealing case including a main body, a cover and a sealing member is disclosed. The main body has a first surface opened to a housing space therein. The cover is disposed over the first surface. The sealing member is interposed between the main body and the cover. The main body includes a first fastening portion protruding toward the sealing member. The cover includes a second fastening portion protruding toward the sealing member. The first and second fastening portions are spaced apart from each other. The main body and the cover are coupled together to be water-tight.

Abstract: A sealing case includes a main body with an opening, the main body including a housing space therein, a cover configured to cover the opening of the main body, a first fastening portion along an outer circumferential portion of the opening of the main body, a second fastening portion on the cover and corresponding to the first fastening portion, and a sealing member interposed between the main body and the cover, the sealing member having a ‘U’ shape and being fitted between the first fastening portion on the main body and a second fastening portion on the cover.

Abstract: A battery pack includes a number of battery modules, a case, a circulation unit and a control unit. The case accommodates the plurality of battery modules therein. The circulation unit is positioned in the case so as to circulate heat generated from the plurality of battery modules. The control unit selects one or more of the number of battery modules and operates the circulation unit using power of the selected battery modules. Accordingly, the temperature equilibrium of the battery pack is implemented by conducting heat from a high-temperature battery module to a low-temperature battery module, so that it is possible to decrease the degree of deterioration and to extend the lifetime of the battery pack.