Abstract: A battery pack includes a cell module assembly including a battery cell stack in which a plurality of battery cells are stacked and each battery cell is erected in a vertical direction; a plate-shaped blocking member disposed between adjacent battery cells and erected in a vertical direction; a pack case configured so as to house the cell module assembly and opened at its upper surface; and a fire-fighting tank located above the cell module assembly and covering an upper surface of the pack case. The blocking member includes a plurality of openings at its upper end, and an inside of the blocking member includes an empty space connected to the plurality of openings.

Abstract: The present invention relates to a lithium compound, a nickel-based cathode active material, a method for preparing lithium oxide, a method for preparing a nickel-based cathode active material, and a secondary battery using same. The lithium compound includes primary particles of Li2O having an average particle diameter (D50) of less than or equal to 5 ?m; and secondary particles composed of the primary particles.

Abstract: A battery pack is configured to secure safety even when a thermal event occurs. The battery pack includes a battery module having at least one battery cell, a control module connected to the battery module and configured to manage the battery module, and a fire extinguishing tank containing a fire extinguishing agent, coupled to at least one of the battery module and the control module, and having a blocking member whose outer surface at least partially extends downward.

Abstract: A battery pack or the like configured to secure safety even when a thermal event occurs is disclosed. The battery pack according to an embodiment of the present disclosure includes a battery module having at least one battery cell, a control module connected to the battery module and configured to manage the battery module, and a fire extinguishing tank containing a fire extinguishing agent, coupled to at least one of the battery module and the control module, and having a rupture member configured to be ruptured under a predetermined condition so that the fire extinguishing agent comes out when the rupture member is ruptured.

Abstract: A battery pack includes a cell module assembly including a battery cell stack in which a plurality of battery cells are stacked; a pack case configured so as to house the cell module assembly and opened at its upper surface; and a fire-fighting tank located above the cell module assembly and covering the pack case, wherein the fire-fighting tank comprises: an internal space that houses the fire extinguishing agent; and a plurality of fragile parts that are parts where the thickness of the base plate of the fire-fighting tank is relatively thin, and are melted and opened by a thermal event of the battery cell.

Abstract: A battery pack includes a cell module assembly including a battery cell stack in which a plurality of battery cells are stacked; a pack case configured so as to house the cell module assembly and including a venting hole on at least one surface; and a filter disposed in the venting hole and configured to be detachable. The filter is mounted on the venting hole to filter venting gas when a thermal event occurs in the battery cell, and can be removed from the venting hole so as to promote maintenance and repair of the inside of the battery pack in normal times.

Abstract: A battery pack includes a plurality of battery modules including module cases. Side surfaces of the module cases in which battery cells are accommodated face each other and a water injection hole is formed in a top surface of each of the module cases, and a fire extinguishing tank unit containing a fire extinguishing agent, located over the plurality of battery modules, and configured to supply the fire extinguishing agent only into a battery module in which a thermal event occurs from among the plurality of battery modules through the water injection holes.

Abstract: A battery pack includes a battery module having at least one battery cell, a control module connected to the battery module and configured to manage the battery module, a fire extinguishing tank containing a fire extinguishing agent and coupled to at least one of the battery module and the control module, and a side cover mounted on one side of the fire extinguishing tank and configured to guide electrical connection between the battery module and the control module.

Abstract: A battery pack ensures safety even when a thermal event occurs. A battery pack includes a battery module including one or more battery cells, a control module connected to the battery module to manage the battery module, and a fire extinguishing tank containing a fire extinguishing agent and coupled to at least one of the battery module and the control module.

Abstract: A battery pack includes a battery module including a water injection hole through which a fire extinguishing liquid can be supplied at an upper end portion and at least one drain hole through which the fire extinguishing liquid can be discharged at a lower end portion, a fire extinguishing tank unit containing the fire extinguishing liquid, located over the battery module, and configured to supply the fire extinguishing liquid to the battery module through the water injection hole, and a module supporter unit located under the battery module and supporting the battery module so that the battery module is located at a certain height from a ground. The module supporter unit includes a contaminated water storage container in which the fire extinguishing liquid dropping from the battery module through the drain hole is accommodated.

Abstract: A method for preparing hydrogen from ammonia by using pressure swing adsorption (PSA) is provided. The method for preparing hydrogen from ammonia, of the present invention, comprises the steps of: generating hydrogen and nitrogen from ammonia gas through a high-temperature reaction by using a catalyst; performing purification by selectively adsorbing unreacted ammonia gas from a gas containing unreacted ammonia and low-purity hydrogen and nitrogen, which are supplied through the high-temperature reaction and cooled; and performing purification by separating high-purity hydrogen from the gas consisting of low-purity hydrogen and nitrogen, wherein purification is carried out by using a carbon molecular sieve (CMS) adsorbent so as to desorb the unreacted ammonia gas through PSA.

Abstract: A battery pack is advantageous for effective control and maintenance of thermal events. A battery pack according to one aspect of the present disclosure may include a battery module having one or more battery cells; a fire extinguishing tank holding a fire extinguishing liquid, disposed on top of the battery module and having a through hole formed therein; and a cover member installed in the through hole of the fire extinguishing tank and configured to open or close the through hole according to a change in internal pressure of the fire extinguishing tank.

Abstract: Provided is an all-season tire tread rubber composition in which braking performance and wear performance are secured at the same time. A rubber composition for tire tread according to the present disclosure comprises: 100 parts by weight of raw rubber comprising solution polymerized styrene-butadiene rubber which has a styrene content of 20 to 30 wt % and a vinyl content within butadiene of 20 to 30 wt %, and is manufactured by a continuous method; 90 to 110 parts by weight of silica; and 20 to 40 parts by weight of modified liquid butadiene rubber.

Abstract: The present invention relates to a novel method for preparing lithium oxide. In the present invention, the particle size and shape of lithium oxide may be controlled during the preparing process. In addition, the present invention relates to lithium oxide with controlled particle size and shape prepared by this preparing method.

Abstract: A battery module includes a battery cell assembly having a plurality of battery cells stacked on each other, a pair of end plates provided at both front and rear sides of the battery cell assembly, a pair of buffer plates provided to the pair of end plates and disposed at both front and rear sides of the battery cell assembly; and at least one pressing plate provided between the pair of buffer plates and disposed between the battery cells of the battery cell assembly. The pair of buffer plates and the at least one pressing plate are configured such that front surfaces and rear surfaces thereof in a front and rear direction of the battery cell assembly have a flat shape.

Abstract: The present invention relates to a lithium compound, a nickel-based cathode active material, a method for preparing lithium oxide, a method for preparing a nickel-based cathode active material, and a secondary battery using same. The lithium compound includes primary particles of Li2O having an average particle diameter (D50) of less than or equal to 5 ?m; and secondary particles composed of the primary particles.

Abstract: A battery module, which includes: a plurality of battery cells stacked on one another; and a bus bar assembly electrically connected to electrode leads of the plurality of battery cells, wherein the electrode leads of the plurality of battery cells are bent at least once to secure a predetermined length and are unbent at least partially due to inflation caused by swelling of the plurality of battery cells.

Abstract: Provided is an all-season tire tread rubber composition in which braking performance and wear performance are secured at the same time. A rubber composition for tire tread according to the present disclosure comprises: 100 parts by weight of raw rubber comprising solution polymerized styrene-butadiene rubber which has a styrene content of 20 to 30 wt % and a vinyl content within butadiene of 20 to 30 wt %, and is manufactured by a continuous method; 90 to 110 parts by weight of silica; and 20 to 40 parts by weight of modified liquid butadiene rubber.

Abstract: A check node update processor of the low density parity check (LDPC) code decoder includes: an approximate first minimum (AFM) condition check unit which checks whether a predetermined specific condition is satisfied, and a check node determining unit which sets an approximate minimum value as a size of an entire check node output when it is determined that the specific condition is satisfied as a checking result in the AFM condition check unit and calculates a first minimum value as a true minimum value and sets a second minimum value as an approximate minimum value when it is determined that the specific condition is not satisfied to determine a size of the check node output.