LG Energy Solution Patente

The present invention relates to an anode, a manufacturing method therefor, and an all-solid-state battery comprising same, the anode comprising an anode current collector and an anodeless coating layer, wherein the anodeless coating layer includes a composite of a carbon-based material and a metal-halogen compound. According to the present invention, an anode, a manufactur- ing method therefor, and an all-solid-state battery comprising same may be provided, wherein the anode has improved distribution uniformity between elements in an anodeless coating layer, thus solving the problem of agglomeration, and has improved lithium-ion conduction characteristics.

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A calendering system according to the present disclosure includes a calendering apparatus configured to compress a mixture including an active material and a binder, the calendering apparatus including a calender roll having an overlapping area positioned to overlap with the mixture and a non-overlapping area positioned to limit overlapping with the mixture; a pair of sensor devices configured to sense the mixture having a pair of edges adjacent to the non-overlapping area and the non-overlapping area; and a control unit configured to determine a thickness at each of the pair of edges of the mixture based on information of the mixture and the non-overlapping area sensed by the pair of sensor devices.

Embodiments provide a battery pack. The battery pack includes a pack housing with a base plate and a side wall parallel to the base plate, a lid on the side wall of the pack housing, a battery cell assembly provided on the base plate of the pack housing and including a plurality of battery cells arranged in a first direction perpendicular to a mounting surface of the base plate and an upper cover covering the plurality of battery cells, and a plurality of spacers between the lid and the upper cover, and each of the plurality of spacers is inserted into the upper cover.

The present disclosure relates to a sulfide-based solid electrolyte and an all-solid-state battery including same, and more particularly, to a sulfide-based solid electrolyte comprising three metals, including germanium (Ge), silicon (Si), and antimony (Sb), thereby to improve the ionic conductivity.

The present disclosure provides a non-aqueous electrolyte and a lithium secondary battery including the same. The non-aqueous electrolyte of the present disclosure includes a lithium salt; an organic solvent and an additive. The organic solvent includes a first organic solvent and a second organic solvent, the first organic solvent may be CFH₂CFHCFH₂, and the second organic solvent may be a cyclic carbonate-based organic solvent.

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A mixing system according to the present invention includes a pre-mixing system and a kneading system. The kneading system includes a kneading device configured to knead a mixture comprising an active material and a binder, a first sensor device configured to detect brightness of the mixture, and a first controller configured to determine crystallinity of the binder based on brightness information of the mixture, which is detected by the first sensor device.

According to exemplary embodiments, a method for manufacturing a secondary battery is provided. The method includes applying a first electrode slurry to the current collector sheet such that active guide lanes are formed on the current collector sheet; applying a second electrode slurry to the current collector sheet such that an electrode slurry lane is formed between the active guide lanes; and drying the active guide lanes and the electrode slurry lane such that an active material layer is formed, wherein the solid content of the first electrode slurry is different from the solid content of the second electrode slurry.

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Disclosed is a battery pack, which includes a plurality of battery modules; a pack case configured to accommodate the plurality of battery modules therein; a cooling channel provided inside a bottom plate of the pack case; cross beams configured to form a wall between the battery modules so that the battery modules are arranged in partitioned spaces, respectively; and a cooling path blocking unit configured to selectively block a cooling channel located under a certain battery module when a thermal event occurs in the certain battery module among the battery modules.

Embodiments of the present disclosure provide a battery cell assembly. The battery cell assembly includes a plurality of battery cells arranged in a first direction and each including an electrode lead, an integrated circuit assembly coupled to the electrode lead of each of the plurality of battery cells, and a foaming mesh between the integrated circuit assembly and the plurality of battery cells.

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Disclosed is a battery module. The battery module includes a case providing a space therein; a battery array including a plurality of battery cells positioned inside the case and stacked along a right and left direction, each battery cell having an accommodation portion extending in a front and rear direction and accommodating an electrode assembly and a sealing portion extending forward from the accommodation portion; a bus bar frame assembly positioned at a front side of the accommodation portion and electrically connected to the battery array; and a fire prevention cover positioned between the bus bar frame assembly and the accommodation portion and having an accommodation space for accommodating at least one sealing portion.

A battery module includes a plurality of battery cells, a module case configured to accommodate the plurality of battery cells, wherein at least a part of one surface of the module case is perforated to form a venting hole, and a retainer is provided on an inner peripheral surface of the venting hole, and a block member configured to cover at least a part of the venting hole, wherein at least a part of the block member is inserted into the venting hole so that the retainer blocks the block member from being separated inward of the module case.

Example embodiments provide a pack housing. The pack housing includes a first base plate including a first cooling channel extending in a first direction, a second base plate including a second cooling channel extending in the first direction, a third base plate including a third cooling channel extending in the first direction, and a fourth base plate including a fourth cooling channel extending in the first direction, a length of the first cooling channel in the first direction is the same as a length of the first base plate in the first direction, a length of the second cooling channel in the first direction is the same as a length of the second base plate in the first direction, a length of the third cooling channel in the first direction is the same as a length of the third base plate in the first direction, a length of the fourth cooling channel in the first direction is the same as a length of the fourth base plate in the first direction, the first base plate is spaced apart from the third base plate with the second base plate therebetween, the second base plate is spaced apart from the fourth base plate with the first base plate therebetween, and the first to fourth cooling channels are connected in series.

Disclosed is a battery pack which includes a plurality of battery modules; a pack case configured to accommodate the plurality of battery modules therein and having a concave portion concavely formed in a bottom plate on which each of the battery modules is mounted; and a fire extinguishing member accommodated in the concave portion and arranged at a lower portion of the battery module, the fire extinguishing member generating a fire extinguishing material when a thermal event occurs in the battery module.

According to some embodiments, a battery management device includes a data acquisition unit configured to acquire battery data from a multi-pack battery including a main battery pack and one or more sub-battery packs, and a control unit configured to determine whether the multi-pack battery enters a rest mode based on the battery data, select a charge battery pack and a discharge battery pack from the multi-pack battery based on the battery data when entering the rest mode, and perform pack activation for providing power of the discharge battery pack to the charge battery pack.

The present disclosure provides a battery pack. The battery pack includes a base frame, an inner frame extending on the base frame in a first direction, a first cell assembly including a plurality of first battery cells and a first side beam, and a second cell assembly including a plurality of second battery cells and a second side beam, and the inner frame includes a first groove into which the first insertion block is inserted and a second groove into which the second insertion block is inserted.

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The present disclosure relates to a novel device for coating of a separator for an electrochemical device and a coating method using the same. Specifically, according to an aspect of the present disclosure, there is an advantage of efficiently pattern-coating a binder on the surface of a separator. In addition, the present disclosure has an advantage of providing a coating method that is easy to change a pattern by reversibly modifying the surface of a coating bar for pattern coating.

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A battery pack includes a pack housing, a battery cell assembly, and a lid is provided. The pack housing includes a base plate that has cooling channels disposed within, and side walls. The battery cell assembly is disposed on the pack housing. The lid is coupled to the side walls and includes another cooling channel. The battery cells of the battery cell assembly includes cooling fins disposed between each of the plurality of battery cells. Each cooling fin includes a contact part overlapping a respective battery cell, a heat emission part connected to the contact part and facing the lid, and a protection part overlapping the contact part.

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The present disclosure relates to a sulfide-based solid electrolyte and an all-solid-state battery including same, and more particularly, to introducing various heterogeneous elements into the sulfide-based solid electrolyte to cause the disorder of the structure, while maintaining the crystal structure of the sulfide-based solid electrolyte, thereby improving the mobility of lithium ions and the ionic conductivity.

According to some embodiments, a battery management device includes a data acquisition unit configured to acquire battery data from a multi-pack battery including a main battery pack and one or more sub-battery packs and a control unit configured to determine whether a low-temperature pack in a low-temperature state exists among packs of the multi-pack battery based on the battery data, select a discharge pack from among the remaining packs of the multi-pack battery, excluding the low-temperature pack, based on the battery data when the low-temperature pack exists, and supply power by discharge of the discharge pack to a temperature management device configured to manage a temperature of the low-temperature pack.

Embodiments provide a battery pack. The battery pack includes a pack housing with a base plate including first cooling channels, a battery cell assembly on the pack housing, and a lid coupled to side walls and including second cooling channels, in which the battery cell assembly includes a plurality of battery cells arranged in a first direction parallel to a mounting surface of the base plate and a plurality of cooling fins between the plurality of battery cells, each of the plurality of cooling fins includes a contact part overlapping the plurality of battery cells in the first direction and a heat emission part connected to the contact part and facing the lid, and the contact part of each of the plurality of cooling fins includes a hollow.

Example embodiments provide a pack housing. The pack housing includes a first cooling plate including a first cooling channel extending in a first direction and first and second vias connected to the first cooling channel, a second cooling plate including a plurality of second cooling channels extending in the first direction and third and fourth vias connected to the second cooling channel, and a refrigerant coupler between the first and second cooling plates, and the refrigerant coupler includes a first distribution port connected to the first via, a second distribution port connected to the second via, a third distribution port connected to the third via, and a fourth distribution port connected to the fourth via.

The present disclosure relates to a battery module including: a plurality of battery cells; a module case configured to store the plurality of battery cells and having a first venting hole formed on one side thereof to discharge venting gas generated from the battery cell to an outside; and a compression member configured to block fluid movement between at least two battery cells between the plurality of battery cells and one side of the module case.

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