LG Energy Solution Patente

A power conversion apparatus according to an embodiment disclosed herein includes a first switch and a second switch serially connected at a first node, a third switch and a fourth switch connected to the first switch at a second node, a fifth switch connected to the third switch at a third node, a sixth switch connected to the fifth switch at a fourth node, a seventh switch and an eighth switch connected to the fifth switch at a fifth node, a ninth switch connected to the eighth switch at a sixth node, a tenth switch connected to the seventh switch at a seventh node, an eleventh switch connected to the tenth switch at an eighth node, and a transformer connected to the first node, the fourth node, the sixth node, and the eighth node, in which the first switch, the second switch, the fifth switch, and the sixth switch are switches for primary-side power conversion, and the eighth switch, the ninth switch, the tenth switch, and the eleventh switch are switches for secondary-side power conversion.

The present invention provides a positive electrode active material composite comprising a positive electrode active material substrate and a coating layer coated on the positive electrode active material substrate, wherein the coating layer comprises a coating substrate comprising Li, Ta, Ti, and O, wherein each element in the coating layer has a molar ratio of 3.5≤Li≤4.5, 4.5≤Ti≤5.4, 10<O≤15, and 0.1≤Ta≤0.5, a positive electrode comprising same, and a lithium-ion secondary battery comprising the positive electrode.

The present invention relates to a battery module, and more particularly, to a battery module in which components inside the battery module is prevented from corroding by an electrolyte leaking when the electrolyte leaks from a secondary battery inside the battery module, and short circuit is prevented from occurring inside the battery module, thereby ultimately improving safety of the entire module. A battery module according to the present invention includes a cell assembly provided with a plurality of secondary batteries, each of which is provided with a plurality of electrode leads, and which are arranged to be stacked in at least one direction, and a busbar assembly provided with a plurality of busbars, which is configured to electrically connect the plurality secondary batteries to each other and in which at least one through-hole is defined so that the electrode leads are inserted, and a busbar frame configured so that the plurality of busbars are mounted, wherein each of the busbars has an immersion area that is an area immersed in an electrolyte when the electrolyte leaks from the secondary batteries, wherein the immersion area is treated to prevent corrosion.

According to embodiments disclosed herein, a server may include a communication circuit, a memory, and a processor operatively connected to the communication circuit and the memory, wherein the processor is configured to collect vehicle use data of a user, determine a user type based on the use data, receive at least any one selection item among a plurality of improvable items from the user, and generate guide information for the user based on the selection item and the user type.

The present invention provides a battery cell capable of detecting electrolyte leakage, including: an electrode assembly; an electrolyte; a case 100 accommodating the electrode assembly and injected with the electrolyte, the case 100 comprising a first portion P1 and a second portion P2 spaced apart from each other by a predetermined distance; and a leakage sensor 200 coupled to and installed at the case 100, the leakage sensor 200 detecting the electrolyte leaking to the outside through the first portion P1 and the second portion P2. The leakage sensor 200 may include a conductor 220 surrounding the first portion P1 and the second portion P2 and constituting an electric circuit. At least one of a resistance, a current or a voltage of the electric circuit may change when the leaked electrolyte contacts with the conductor 220. The conductor 220 may include a first conductor 222 surrounding the first portion P1, a second conductor 224 surrounding the second portion P2, and a third conductor 226 connecting the first conductor 222 and the second conductor 224, the first conductor 222, the second conductor 224, and the third conductor 226 constituting the electric circuit.

The present disclosure is directed to providing a gas release member that can release gas inside a pouch to the atmosphere and has a reduced deformation ratio and a pouch cell including the same. The pouch cell according to the present disclosure may include an electrode assembly including a positive electrode, a negative electrode and a separator, a pouch accommodating the electrode assembly, an electrode lead electrically connected to the electrode assembly and protruded outward from the pouch, a lead film covering a part of the electrode lead to isolate the electrode lead from the pouch, and a gas release member disposed between the electrode lead and the lead film and configured to form a gas movement route by gas inside the pouch, wherein the gas release member may include a first member, a part of which has a concave shape in a length direction of the electrode lead, and a second member extended from the first member toward the electrode assembly.

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