LG Energy Solution Patente

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A battery cell assembly according to an exemplary embodiment of the present disclosure includes a plurality of battery cells, and a potting unit disposed outside the plurality of battery cells and interposed between the plurality of battery cells and configured to fix the plurality of battery cells. A battery cell assembly according to the present disclosure may not include a separate housing having a receiving space for receiving a plurality of battery cells.

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A battery cell according to an embodiment of the present disclosure may include an electrode assembly configured by winding a first electrode, a second electrode, and a separator interposed therebetween around a winding axis, a can configured to receive the electrode assembly through an open end formed on one side, a lid configured to cover the open end and having an injection hole formed therein, and a plug configured to seal the injection hole, wherein the plug may include a lid-coupling portion positioned on the lid, an insertion portion positioned radially inward from the lid-coupling portion and protruding from the lid-coupling portion so as to be inserted into the injection hole, and an edge portion positioned at an edge of the lid-coupling portion and recessed further downward than the lid-coupling portion in a winding axis direction.

The technical idea of the present disclosure provides a battery device including: a cooling frame; and a cell assembly disposed on the cooling frame, wherein the cell assembly includes: a plurality of battery cells; a heat transfer structure including a first heat transfer plate connected to electrode leads of the plurality of battery cells and a second heat transfer plate connected to the cooling frame; and an outer cover connected to the first heat transfer plate, wherein at an interface between the first heat transfer plate and the outer cover, the outer cover is continuously contacted to an outer surface of the first heat transfer plate.

The present invention relates to a positive electrode slurry composition, a positive electrode, and a lithium secondary battery including the same, and particularly to a positive electrode slurry composition for a lithium secondary battery which is characterized by including a positive electrode active material, a film-forming additive, and a solvent, wherein the film-forming additive is a compound represented by Formula 1, a positive electrode for a lithium secondary battery, and a lithium secondary battery including the same.

According to exemplary embodiments, a battery cell is provided. The battery cell includes an electrode including a positive electrode, a negative electrode, and a separator; a cell case including an accommodating part in which the electrode is accommodated and a terrace surrounding the accommodating part; and a beat generator coupled to the cell case, wherein the beat generator is configured to apply an acoustic beat into the cell case.

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According to exemplary embodiments of the present disclosure, a battery cell aging device is provided. The battery cell aging device may comprise a plastic cover having an opening for inserting an electrode terminal; and a moisture supply layer within the plastic cover.

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The present disclosure provides a method for producing a heat resistant pad, comprising the steps of: mixing a fluorine-based resin and an aerogel particle in a solid state at a weight ratio of 1:1 or more and 1:1.5 or less to form an aerogel composite; and forming the aerogel composite into a sheet to form a thermal insulation layer.

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According to an embodiment of this document, a battery diagnosis device includes a memory storing at least one instruction and at least one processor executing the at least one instruction, and the at least one processor is configured to identify a first input voltage profile including a voltage profile measured by supplying a current having a specified waveform to a battery cell, input the first input voltage profile into a first model which performs encoding and then restoration the first input voltage profile, and diagnose a state of the battery cell based on a feature vector identified based on the first model.

According to an embodiment of this document, a battery diagnosis device includes a memory configured to store at least one instruction and at least one processor configured to identify a first input voltage profile including a voltage profile measured by supplying a current having a specified waveform to a battery cell, input the first input voltage profile into a first model which encodes and then restores the first input voltage profile, and diagnose a state of the battery cell based on a feature vector identified based on the first model.

Embodiments provide an electrode assembly. The electrode assembly includes: a positive electrode including a positive electrode current collector, a first positive electrode active material layer on the positive electrode current collector, and a second positive electrode active material layer spaced apart from the first positive electrode active material layer with the positive electrode current collector therebetween; a negative electrode including a negative electrode current collector, a first negative electrode active material layer on the negative electrode current collector, and a second negative electrode active material layer spaced apart from the first negative electrode active material layer with the negative electrode current collector therebetween; a separator between the positive electrode and the negative electrode; and a variable resistance structure in contact with the positive electrode and the negative electrode, the variable resistance structure includes a conductive foil and a variable resistance film on the conductive foil, and the variable resistance film includes a transition metal oxide.

Embodiments provide a battery cell assembly. The battery cell assembly includes a first battery cell including a first positive electrode lead and a first negative electrode lead, a second battery cell including a second positive electrode lead and a second negative electrode lead, and a first integrated circuit assembly coupled to the first and second battery cells and including a first insulating frame, and the first insulating frame includes a first slit penetrated by the first negative electrode lead of the first battery cell, a second slit penetrated by the second positive electrode lead of the second battery cell, and a third slit penetrated by the first negative electrode lead of the first battery cell.

A battery includes a cell housing, an electrode assembly positioned within the cell housing, and a current collector plate positioned within the housing and electrically coupled to both the cell housing and a second electrode of the electrode assembly. The current collector plate includes an electrode coupling portion electrically coupled to the second electrode, a peripheral portion electrically coupled to the cell housing, and at least one bridge extending between and connecting the electrode coupling portion and the peripheral portion. The bridge includes an adjustable portion configured to deform in response to an applied force, and the peripheral portion may include a rigidity reinforcing structure. The battery may be a cylindrical battery, and the electrode assembly may have a jelly-roll configuration, with the second electrode being a negative electrode. A battery pack including multiple such batteries, and a vehicle including at least one of such battery packs, is also provided.