LG Energy Solution Patente

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The present invention relates to a test device for testing a performance of a battery, and more specifically, relates to a cycling test device for testing a performance of a battery by repeating charging and discharging of the battery within a constant temperature for a long period of time.According to one example of the present invention, a cycling test device may be provided, which comprises: a first refrigerator having a cooling capacity for maintaining a temperature in a chamber at a constant temperature in consideration of a heat load in the chamber; a second refrigerator provided to be separated from the first refrigerator and having a cooling capacity greater than the cooling capacity of the first refrigerator, to lower the temperature in the chamber; and a control part controlling the second refrigerator to be selectively driven in cooling operation for lowering the temperature in the chamber.

An electrode manufacturing apparatus according to an embodiment of the present disclosure includes a pair of rolls arranged side by side with a gap between the pair of rolls; a first bearing rotatably supporting the roll; a second bearing facing the first bearing in an axial direction of the roll and rotatably supporting the roll; and a gap adjustment unit configured to adjust at least one of a gap between the two first bearings supporting the pair of rolls, or a gap between the two second bearings supporting the pair of rolls.

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The present disclosure relates to a gas discharge film having excellent gas discharge performance and capable of being manufactured efficiently. A gas discharge film according to the present disclosure is configured to cover an opening formed in an exterior material of a secondary battery and discharge internal gas of the exterior material, and the gas discharge film may include an adhesive layer having adhesiveness by heat and having a through hole formed therein; and a permeable layer laminated to one surface of the adhesive layer to cover the through hole and having a higher gas permeability than the adhesive layer, wherein the permeable layer may have the same thickness as the adhesive layer or may be formed thicker than the adhesive layer.

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The present disclosure relates to an electrode assembly, a battery cell including the same, and an electrode lead welding method, and an electrode assembly according to an embodiment of the present disclosure may include a plurality of electrodes having electrode tabs, and an electrode lead coupled to the electrode tabs, wherein the plurality of electrode tabs may include a first electrode tab, and a second electrode tab coupled to one surface of the electrode lead and differing in appearance from the first electrode tab.

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A battery management apparatus according to an embodiment disclosed herein includes a data obtaining unit configured to obtain degradation score data including a storage degradation score with respect to state of charge (SOC) and temperature of batteries of each of a plurality of vehicles and state data of the batteries and a controller configured to calculate, based on the state data, a first score related to a cycle degradation degree of a target battery that is a battery of a target vehicle among the plurality of vehicles in a discharging section of the target vehicle, calculate, based on state data of the target battery and the degradation score data, a second score related to a storage degradation degree of the target battery in the discharging section of the target vehicle, and manage a state of the target battery by calculating a stress score of the target battery based on the first score and the second score.

A battery data collection server according to one embodiment disclosed herein includes a communication unit configured to receive first data on a battery of a vehicle from at least one of a data collection device or a data storage of the vehicle, a first storage configured to classify and store the first data into 2_1 data and 2_2 data based on a reception path of the first data, a preprocessing unit is configured to convert formats of the 2_1 data and the 2_2 data to generate third data, classify the third data according to the type of the vehicle to generate a plurality of first databases, and extract preset data from the plurality of first databases to generate a second database, and a second storage configured to store the plurality of first databases and the second database.

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The present disclosure relates to a secondary battery that can be charged and discharged and a sealing block for sealing the secondary battery by applying pressure to the secondary battery. A secondary battery according to the present disclosure may include an electrode assembly; a pouch-type exterior material having an internal space that accommodates the electrode assembly and an exterior material opening that allows the internal space to communicate with the outside; and a cover member inserted into the exterior material opening, wherein a part of an inner surface of the exterior material facing the cover member may include a sealing surface that is coupled to the cover member to seal an inside of the exterior material; and a separation surface that is separated from the cover member. A sealing block according to the present disclosure seals a secondary battery including an electrode assembly; a pouch-type exterior material forming an internal space that accommodates the electrode assembly; and a cover member inserted into an exterior material opening that allows the internal space to communicate with an outside, and the sealing block may include a press body that presses the exterior material and the cover member, thereby allowing the exterior material and the cover member to be fused to each other to form a sealing portion for sealing the internal space.

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