LG Energy Solution Patente

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The technology idea of the present invention provides an electrode manufacturing apparatus including a first rolling roll and a second rolling roll spaced apart from each other with an electrode sheet therebetween, and an induction heater configured to apply a high-frequency heating power source to at least one of the first rolling roll and the second rolling roll, in which the induction heater is configured to control a temperature of each region of the first rolling roll.

The present technology provides an electrode manufacturing apparatus including an unwinder around which an electrode sheet is wound, a rewinder configured to recover and wind the electrode sheet, a plurality of guide rolls configured to guide the electrode sheet to be moved between the unwinder and the rewinder, a rolling device provided between the unwinder and the rewinder, and including an upper rolling roll and a lower rolling roll that are configured to roll the electrode sheet, and a conveyor transfer device configured to move a connection sheet attached to one of two parts of the electrode sheet that are separated from each other, in which the conveyor transfer device is configured to move the connection sheet through a rolling gap between the upper rolling roll and the lower rolling roll.

The present disclosure relates to a carbon composite for use in a positive electrode of a lithium-sulfur battery and a method for producing the same, and the carbon composite includes a porous carbon material, and a catalyst located on at least one of an outer surface of the porous carbon material and an inner surface of pores of the porous carbon material, wherein the catalyst includes transition metal alloy particles and a carbon coating layer on at least part of a surface of the transition metal alloy particles, wherein the transition metal alloy particles include cobalt (Co) and iron (Fe), and wherein at least part of the carbon coating layer includes a crystalline carbon.

The present technology provides a code reader including a vision device configured to identify an identification code of an article, a lower frame located below the vision device and configured to provide a passage through which the article is moved, an alignment jig detachably mounted in the lower frame and accommodated in the passage of the lower frame, and a fixing holder at a reference position, in which the vision device is aligned to the reference position by inserting the alignment jig into the fixing holder.

The present technology provides an electrode roll package including a bobbin, an electrode roll including an electrode sheet wound around the bobbin, a protective cover configured to surround the electrode roll, and a sealing cover configured to cover the electrode roll and the protective cover to seal the electrode roll and the protective cover.

The present disclosure provides a non-aqueous electrolyte comprising a lithium salt, an organic solvent and a compound represented by Formula 1:wherein, in Formula 1, R₁ is any one selected from the group consisting of R, an alkyl group having 1 to 10 carbon atoms in which can be substituted with fluorine, an alkenyl group having 2 to 10 carbon atoms which can be substituted with fluorine, an alkynyl group having 2 to 10 carbon atoms which can be substituted with fluorine, OR', OCOR' and F, and R' is any one selected from the group consisting of an alkyl group having 1 to 10 carbon atoms which can be substituted with fluorine, an alkenyl group having 2 to 10 carbon atoms which can be substituted with fluorine, and an alkynyl group having 2 to 10 carbon atoms which can be substituted with fluorine, and R has a structure represented by Formula 2 below:wherein, in Formula 2, Rx and Ry are each independently either H or F.

The present disclosure provides a non-aqueous electrolyte comprising a lithium salt, an organic solvent and any one of compounds represented by Formula 1 to Formula 5 below as an additive: <img class="EMIRef" id="71d3ffd7-7f94-4017-ba02-ea9582fc2fa3-ia01" /> <img class="EMIRef" id="71d3ffd7-7f94-4017-ba02-ea9582fc2fa3-ia02" /> <img class="EMIRef" id="71d3ffd7-7f94-4017-ba02-ea9582fc2fa3-ia03" /> <img class="EMIRef" id="71d3ffd7-7f94-4017-ba02-ea9582fc2fa3-ia04" /> <img class="EMIRef" id="71d3ffd7-7f94-4017-ba02-ea9582fc2fa3-ia05" /> <img class="EMIRef" id="71d3ffd7-7f94-4017-ba02-ea9582fc2fa3-ia06" /> wherein, in Formulas 1 to 5 above, R has a structure represented by Formula 6. <img class="EMIRef" id="71d3ffd7-7f94-4017-ba02-ea9582fc2fa3-ia07" /> wherein, in Formula 6, Rx and Ry are each independently either H or F, in Formula 3, n is an integer from 1 to 5, and m is an integer from 1 to 5, in Formulas 4 and 5 above, n is an integer from 1 to 5, and in Formulas 4 and 5 above, R<1> and R<2> are each independently either H or F.

A battery module of the present disclosure may include: a first group including a plurality of battery cells arranged in a row; a second group spaced apart from the first group and including a plurality of battery cells arranged in a row; a third group including a plurality of battery cells arranged in a row between the first group and the second group; a fourth group spaced apart from the third group and including a plurality of battery cells arranged in a row between the first group and the second group; a fire extinguishing member disposed in a space between the third group and the fourth group; and a case accommodating the first to fourth groups and the fire extinguishing member.

The present invention provides a positive electrode material powder containing particles of a lithium nickel-based oxide represented by chemical formula 1 and having a single crystallinity of 1.85 to 3.00 as expressed by equation (1) according to the present invention. [Chemical formula 1] Li<a>Ni<b>Co<c>M<1>d M<2>e O<2> In chemical formula 1, M<1> is Mn, Al, or a combination thereof, M<2> is at least one selected from the group consisting of Ti, Mg, Al, Zr, Y, Ba, Ca, Sr, W, Ta, Nb, and Mo, 0.80≤a≤1.20, 0.80≤b<1, 0<c<0.45, 0<d<0.45, and 0≤e≤0.20.

An electrode tab inspection apparatus according to an embodiment of the present disclosure may inspect an electrode tab notched at a side of an electrode sheet in a width direction. The electrode tab inspection apparatus may include a detection unit configured to detect a laser beam that is incident thereon; a laser generation unit configured to emit the laser beam toward the detection unit; and a controller configured to determine if the electrode tab is defective based on a detection result of the detection unit when the electrode tab passes a location at which the electrode tab blocks the laser beam incident on the detection unit.

A battery diagnosis apparatus according to an embodiment disclosed herein includes a communication circuit configured to obtain a cumulative mileage of a diagnosis target vehicle and a cumulative discharging energy of a battery mounted on the diagnosis target vehicle and obtain reference energy efficiencies of a plurality of vehicles of a same model as the diagnosis target vehicle, a first processor configured to calculate a threshold value, which is a criterion for replacement of a battery, based on the reference energy efficiencies, and a second processor configured to calculate a cumulative energy efficiency based on the cumulative mileage and the cumulative discharging energy and diagnose whether the battery has been replaced, based on the cumulative energy efficiency and the threshold value.

The present disclosure provides a non-aqueous electrolyte comprising a lithium salt, an organic solvent and a compound of Formula 1 below as an additive: <img class="EMIRef" id="0d15af40-7fe8-4a00-a7e8-06f5d75ad381-ia01" /> wherein, In Formula 1, R<1> is any one selected from the group consisting of F, R, an alkyl group having 1 to 10 carbon atoms in which can be substituted with one or more fluorines, an alkenyl group having 2 to 10 carbon atoms which can be substituted with one or more fluorines, an alkynyl group having 2 to 10 carbon atoms which can be substituted with one or more fluorines, OR' and OCOR', and R' is any one selected from the group consisting of an alkyl group having 1 to 10 carbon atoms which can be substituted with one or more fluorines, an alkenyl group having 2 to 10 carbon atoms which can be substituted with one or more fluorines, and an alkynyl group having 2 to 10 carbon atoms which can be substituted with one or more fluorines, wherein in Formula 1 and R<1>, R has a structure represented by Formula 2 below, and <img class="EMIRef" id="0d15af40-7fe8-4a00-a7e8-06f5d75ad381-ia02" /> <img class="EMIRef" id="0d15af40-7fe8-4a00-a7e8-06f5d75ad381-ia03" /> wherein, in Formula 2, Rx and Ry are each independently either H or F.

The present disclosure relates to a manufacturing method of a lithium secondary battery comprising: a step (S1) of manufacturing a preliminary cell which comprises a positive electrode containing a positive electrode active material, a negative electrode, a separator and an electrolyte; and a step (S2) of charging the preliminary cell to a charging cut-off voltage and discharging the preliminary cell to the discharging cut-off voltage to activate the preliminary cell, wherein the positive electrode active material includes a lithium-rich manganese-based oxide containing 50 mol% or more of manganese(Mn) among all metals excluding lithium, and having a molar ratio of lithium to all metals excluding lithium (Li/Me) exceeding 1, and wherein the charging cut-off voltage is more than 4.3V, and the discharging cut-off voltage is 2.6V or more.

An information collection device according to an embodiment disclosed in this document may comprise: a controller including a signal transmission port and a signal reception port; and a plurality of sensors connected to the signal transmission port and the signal reception port, wherein the controller may sequentially transmit and receive a wake-up signal, a transmission signal, and a reception signal to and from each of the plurality of sensors through the signal transmission port or the signal reception port.

A battery management apparatus disclosed herein includes a plurality of temperature sensors configured to respectively measure temperatures of a plurality of battery cells, a memory configured to cumulatively store temperature data and time data of the plurality of battery cells, received from the plurality of temperature sensors, and a controller configured to obtain battery degradation data by applying a battery degradation weight value to the temperature data and the time data and determine degradation degrees of the plurality of battery cells by comparing the battery degradation data with degradation reference data.

A battery case according to an embodiment of the present disclosure may include an accommodation portion accommodating an electrode assembly including a positive electrode and a negative electrode stacked in an alternating manner with a separator interposed between the positive electrode and the negative electrode, wherein an edge portion of the negative electrode is protruded outwards than the positive electrode. A bottom surface of the accommodation portion may include a main area; and a peripheral area located around the main area, wherein the peripheral area forms a predetermined step with the main area, and overlaps the edge portion of the negative electrode in a stack direction of the electrode assembly.

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