원래 이름 기록: LG ENERGY SOLUTION, LTD.

A method for assembling a battery module includes a sub frame providing process of providing a sub frame having a plate shape; a cell block seating process of seating a cell block, in which a plurality of battery cells are coupled to each other, on a top surface of the sub frame; a temporary assembly process of temporarily fixing a main frame having a cross-sectional shape, of which one side is opened, and three surfaces are closed, to the sub frame so that the cell block is accommodated into the inside; and a welding process of welding a point at which the main frame and the sub frame are in contact with each other.

Discussed is a pairing apparatus that can include a communication unit configured to receive battery information for a plurality of batteries; an index value determining unit configured to determine an index value for a plurality of performance indexes preset for each of the plurality of batteries, based on the battery information to provide a plurality of index values; and a battery determining unit configured to compare the plurality of index values determined for the plurality of batteries and pair corresponding batteries among the plurality of batteries according to a comparison result of the plurality of index values.

An electrode assembly including a negative electrode structure and a plurality of positive electrodes is provided. The negative electrode structure includes first and second separating films, and a negative electrode including a lithium metal layer interposed between the first and second separating films. The negative electrode structure includes a plurality of stack portions and a plurality of folding portions. The electrode assembly has a configuration in which the stack portion of the negative electrode structure and the positive electrode are stacked alternately and sequentially. the negative electrode structure includes a plurality of negative electrode tabs that protrude from the negative electrode structure and past the first and second separating films in a width direction. The number of the negative electrode tabs is one less or fewer than a number of stack portions of the negative electrode structure.

In a battery module, an insulation distance between a cell assembly and a frame may be secured through structural characteristics of an insulating part to prevent functional deterioration from occurring due to an electrical phenomenon, and the cell assembly may be prevented from being damaged by a spatter phenomenon occurring during welding process of the frame to improve yield of the battery module.

A battery pack includes a plurality of battery cell stacks, each battery cell stack having a plurality of battery cells stacked in a first direction; a pack tray in which the plurality of battery cell stacks are accommodated in a plurality of rows extending in a second direction, each row having multiple battery cell stacks arranged in the second direction, the pack tray including: a base, a plurality of sidewalls extending from the base, a plurality of first beams extending in the second direction to separate the plurality of rows into groups, and a plurality of partition walls, each partition wall being located within a corresponding group to separate battery cells stacks from each other; a pack cover covering an opening portion of the pack tray opposite the base, and a plurality of first elastic members located between the pack cover and the plurality of battery cell stacks.

A battery pack includes a plurality of cell assemblies containing one or more battery cells and arranged in at least one row; a pack case configured to accommodate the plurality of cell assemblies; and a partition member configured to partition the plurality of cell assemblies within the pack case and made of flexible material to surround the plurality of cell assemblies in close contact.

Discussed is a battery pack, including a plurality of battery cells, a bus bar assembly electrically connected to the plurality of battery cells, a side structure unit configured to accommodate the plurality of battery cells and configured to form a first section of an outer surface of the battery pack, and a filling member configured to form a second section of the outer surface of the battery pack together with the first section of the outer surface of the battery pack formed by the side structure unit, the filling member further being filled in a space between the plurality of battery cells.

A battery module includes a module case having an inner space surrounded by a plurality of surfaces to accommodate battery cells in the inner space and at least one vent hole provided on a first surface of the plurality of surfaces so as to lead to the inner space and a vent hole cover attached to the module case and configured to cover the at least one vent hole. The vent hole cover may include an opening portion provided in a portion of the vent hole cover corresponding to the at least one vent hole and configured to be opened by venting gas from the battery cells.

The present disclosure relates to a water-cooled integrated charger and discharger, which provides a charger and discharger comprising: a charging and discharging jig configured to charge and discharge a battery; a water-cooled power supply part configured to supply a power source to the charging and discharging jig and configured to be cooled with water; and a chiller connected to the water-cooled power supply part through a water-supply pipe and a drainpipe, and configured to release heat energy generated from the water-cooled power supply part to an exterior environment.