LG Energy Solution Patente

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

A battery diagnostic device may include a memory that stores at least one instruction and at least one processor that executes the at least one instruction, and the at least one processor may be configured to execute a charging process in which a charging section of a specific charge rate and a first rest section are alternately repeated for a battery cell or execute a discharging process in which a discharging section of a specific discharge rate and a second rest section are alternately repeated for the battery cell, acquire a resistance of the battery cell while executing the charging process or the discharging process, and diagnose a charge capacity of the battery cell based on the resistance of the battery cell.

The present disclosure relates to an all-solid-state battery and can provide an all-solid-state battery comprising a cathode, a solid electrolyte layer, an anodeless coating layer, and an anode current collector, and a manufacturing method therefor, wherein the anodeless coating layer includes amorphous carbon and silver nanoparticles, and when the anode-free coating layer is divided in the thickness direction into two equal parts, referred to as a first region and a second region in order from the side closer to the anode current collector, the ratio (C2/C1) of the silver nanoparticle content (C2) in the second region to the silver nanoparticle content (C1) in the first region falls within the range of 0.4 to 2 after charging/discharging. This configuration ensures excellent reactivity between silver nanoparticles and lithium ions, and high lithium ion conductivity. Even after charge and discharge cycles, the distribution characteristics of silver nanoparticles remain excellent, contributing to the uniformity of internal resistance in the battery and effectively regulating lithium dendrite growth. Accordingly, the all-solid-state battery of the present invention has an excellent capacity retention rate, particularly, an excellent capacity retention rate at a high rate, and also exhibits excellent lifespan characteristics.

The present disclosure provides a door opening/closing system applied to a case having an accommodation space therein. The door opening/closing system according to certain embodiments comprises: a door that can move in one direction to cover the accommodation space; a rod bar coupled to the door; a handle coupled to the rod bar; a roller support coupled to the rod bar and moving integrally with the rod bar; a roller coupled to an end of the roller support; and a roller bracket coupled to the case. When a user moves the handle up or down, the rod bar moves integrally with the handle. The roller bracket comprises a rail that extends along moving route of the roller and corresponds to the roller.

Zusammenfassung wird geladen …

A pressurizing device according to an embodiment of the present disclosure is provided to pressurize a secondary battery cell including an electrode assembly and an exterior material surrounding the electrode assembly, and the pressurizing device may include a pressure roller that rolls on a portion of the exterior material overlapping the electrode assembly and pressurizes the electrode assembly; and pressure plates that extend in one direction along edges of the electrode assembly to pressurize portions of the exterior material overlapping edge portions of the electrode assembly.

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

A battery capacity estimating apparatus according to an embodiment of the present disclosure includes: a measurement unit that measures the pack capacity of a battery pack and the voltage of each of a plurality of batteries included in the battery pack during a charging-discharging process; and a control unit. The control unit is configured to calculate the relative capacity ratio among the plurality of batteries based on the voltage range of each of the plurality of batteries, and estimate the capacity of each of the plurality of batteries based on the pack capacity and the relative capacity ratio.

Solid state battery apparatus are provided. The present disclosure relates to a solid state battery comprising a cell which comprises a cathode, an anode, and a solid electrolyte positioned between the cathode and the anode. The anode comprises first particles comprising silicon and second particles comprising a material configured to form an alloy with lithium. The second particles are softer than the first particles and configured to compensate for size changes of the first particles during charging and discharging cycles of the solid state battery such that, as the first particles expand in size, the second particles are compressed in size at a given pressure applied to the solid state battery and further such that, as the first particles shrink in size, the second particles expand in size at a given pressure applied to the solid state battery.

Zusammenfassung wird geladen …

A battery management apparatus according to an embodiment disclosed herein includes a temperature estimation unit configured to estimate a temperature of a battery based on electrochemical impedance spectroscopy (EIS) data related to impedance of the battery, a data acquisition unit configured to acquire measurement data related to a measured temperature of the battery, and a temperature correction unit configured to correct the estimated temperature of the battery to correspond to the measured temperature of the battery based on at least one correction coefficient generated based on an error between the measured temperature of the battery according to the measurement data and the estimated temperature of the battery.

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …