Abstract: This application provides a battery cell, a method and system for manufacturing same, a battery, and an electrical device. The battery cell includes: an electrode assembly; a shell assembly, configured to accommodate the electrode assembly and including a first side plate and a second side plate, where the first side plate and the second side plate are located on two sides of the electrode assembly along a first direction respectively; a pressure relief mechanism, disposed on the first side plate; and a support member, disposed between the electrode assembly and the first side plate, and configured to support the electrode assembly. A duct is provided on the support member. The duct is configured to guide gas between the second side plate and the support member into the pressure relief mechanism, so that the pressure relief mechanism is actuated to release a pressure when the pressure reaches a threshold.

Abstract: Two-stage pressure regulators for compressed gas are disclosed. An example two-stage pressure regulator includes a body, an upstream piston, a seat assembly, and a downstream piston. The body defines an inlet, an outlet, a chamber and an upstream valve seat. The upstream piston is slidably positioned in the chamber adjacent the inlet. The upstream piston includes a first plug that is configured to engage the upstream valve seat in a first closed position and be disengaged from the upstream valve seat in a first open position. The seat assembly is housed in the chamber and includes a downstream valve seat. The downstream piston is slidably positioned in the chamber adjacent the outlet. The downstream piston includes a second plug that is configured to engage the downstream valve seat in a second closed position and be disengaged from the downstream valve seat in a second open position.

Abstract: The present disclosure relates to a water surface foldable emergency-built runway, including a storage box; a folding runway having an unfolding state and a folding state; a recovery apparatus, being provided in the storage box and connected with the folding runway to push the folding runway out of the storage box or recover into the storage box; a contractile apparatus, being provided on the folding runway to assist the folding runway to be unfolded or folded; an inflation and deflation apparatus, being provided in the storage box and communicated with the interior of the folding runway to inflate or deflate the folding runway; and an anchoring apparatus, being provided at a bottom face of the folding runway to fix the folding runway in water. It has advantages of low cost, convenient transportation, short construction time, strong overturning resistance, compression resistance and flex resistance.

Abstract: A display panel includes: a substrate, a light-emitting element layer, a pixel defining layer, an encapsulation layer, a touch electrode layer, a touch driving layer, and a plurality of touch connection lines. The light-emitting element layer is arranged on the substrate, and includes multiple light-emitting elements arranged in an array. The pixel defining layer is arranged on the substrate, and every two adjacent light-emitting elements are separated from each other by the pixel defining layer. The encapsulation layer is arranged on the light-emitting element layer and used to encapsulate the light-emitting element layer. The touch electrode layer is arranged in the encapsulation layer. The touch driving layer is arranged between the substrate and the light-emitting element layer. The multiple touch connection lines are arranged to pass through the encapsulation layer and the pixel defining layer, and are used to connect the touch electrode layer and the touch driving layer.

Abstract: An adjustable cavitator structure has a cavitator disposed at a head end of the underwater vehicle. The cavitator has a cavitator body, a center of which is connected to the head center of the underwater vehicle through a damper. The front end of the cavitator body is detachably connected with a head fairing device. The cavitator body is of a double-layer structure including a first layer and a second layer. A plurality of cavitator disc face retractable sheets are installed on the first layer and the second layer and are evenly distributed around the axis of the cavitator body, and are slidably connected with the corresponding first layer or second layer. A buffer driving mechanism for driving the cavitator disc face retractable sheets to slide in a radial direction of the cavitator body is installed at the head end of the underwater vehicle.

Abstract: Disclosed in the present disclosure is a display panel and a display device. The display panel includes a substrate, a pixel-defining layer, a plurality of light-emitting elements, a compensation light source, an encapsulation layer, and a light-shielding layer. The light-shielding layer is disposed on the compensation light source and located in a non-opening area for blocking outgoing light emitted perpendicular to the substrate from the compensation light source. The compensation light source is configured to provide preset angle compensation outgoing light to the plurality of light-emitting elements when two adjacent light-emitting elements are displayed, where an area of the compensation outgoing light varies with the light emitting intensity of adjacent light-emitting elements. At least one first compensation light source and one second compensation light source are arranged between two adjacent light-emitting elements.

Abstract: A display panel which includes a substrate; a functional layer, the functional layer having a body portion and a groove formed by a recess in a surface of the body portion away from the substrate; and an insulating layer, located on one side of the functional layer away from the substrate, the insulating layer having a first sub-layer and a second sub-layer which are stacked, the second sub-layer having a first hole penetrating therethrough, and an orthographic projection of the groove on the substrate being located within an orthographic projection of the first hole on the substrate.

Abstract: Embodiments of the present application provide a battery cell, a battery, and a power consuming apparatus. The battery cell includes: a housing, including a first wall, where the first wall is provided with a pressure relief mechanism; an electrode assembly, accommodated in the housing; and a support structure, disposed between the housing and the electrode assembly, where the support structure is used for forming, between the first wall and the electrode assembly, an exhaust channel in communication with the pressure relief mechanism. The embodiments of the present application provide a battery cell, a battery, and a power consuming apparatus, to reduce a probability that non-directional pressure relief occurs in the battery cell.

Abstract: A battery and an electric device are disclosed. The battery includes a housing with an inner cavity and a battery cell positioned inside the cavity. The battery cell includes a pressure relief mechanism. A first partition divides the cavity into a first chamber and a second chamber. The battery cell is located in the first chamber. The partition includes a through hole that allows communication between the two chambers. The pressure relief mechanism is aligned with the through hole to direct fumes from the battery cell into the second chamber. A fume processing apparatus is positioned in the second chamber to treat the fumes and discharge the processed fumes outside the battery. This configuration reduces environmental pollution and health hazards caused by fumes generated during thermal runaway of the battery.

Abstract: Embodiments of the present application are provided with a box of a battery, a battery, a power consumption device, and a method and device for producing a battery. The box of the battery includes: an electrical chamber; a thermal management component; and a collection chamber, configured to collect emissions from the battery cell provided with the pressure relief mechanism when the pressure relief mechanism is actuated; wherein the thermal management component is configured to isolate the electrical chamber from the collection chamber, a pressure relief region is disposed on the thermal management component, and the emissions collected by the collection chamber is discharged through the pressure relief region. According to the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.

Abstract: A combined disc-type cavitation structure for underwater navigation of an underwater vehicle has an underwater vehicle and a fairing. A plurality of cavitators having sequentially increased outer diameters are sequentially arranged in the fairing. A cavitator receiving groove matched with the cavitator located on the front side is arranged in the center of the front surface of the cavitator located on the rear side in every two adjacent cavitators. The plurality of cavitators can be integrated into a whole by means of the cavitator receiving groove. The cavitator located at the front-most end is a first cavitator, and the remaining cavitators are second cavitators. The first cavitator is connected to the underwater vehicle by means of a buffer. Each second cavitator is respectively connected to the underwater vehicle by means of a driving device configured to axially move the corresponding second cavitator.

Abstract: The present disclosure relates to a package structure, a method for forming the same, and a semiconductor structure. The package structure comprises: a first substrate; a second substrate, located above the first substrate; a package body, located between the first substrate and the second substrate, the package body comprising a semiconductor chip, a functional device, and a plurality of first interconnection structures located on at least one side of the semiconductor chip, the first interconnection structures electrically connecting the first substrate to the second substrate, the plurality of the first interconnection structures located on the same side of the semiconductor chip are arranged at intervals, and the functional device is located within an interval area between the adjacent first interconnection structures.

Abstract: Disclosed are a tricyclic fused heterocyclic compound having a PDE3/4 dual inhibitory effect represented by formula (I), a stereoisomer, a solvate, or a pharmaceutically acceptable salt thereof, and the use thereof in the preparation of a drug for treating/preventing PDE3/4-mediated diseases. Each group in formula (I) is as defined in the description.

Abstract: A method for vehicle place recognition, in which LiDAR data of a vehicle is processed to obtain a point cloud result of a vehicle LiDAR. An environmental descriptor is constructed based on the point cloud result. Based on a type of a LiDAR sensor of the LiDAR data and a measurement environment, a dynamic filtering strategy threshold is calculated. Compared the environmental descriptor and the dynamic filtering strategy threshold with point cloud data in a historical database, a vehicle position information is obtained.

Abstract: A jet-propelled water-entry composite buffer device for multi-channel gas recycling includes a head fairing, an underwater vehicle, a buffer, a cavitator and a side fairing. The side fairing is internally provided with a fairing body and a sealing choke plate, and a high-pressure gas cavity, a transition cavity and a sub-high-pressure gas cavity are formed by the fairing body and the sealing choke plate from front to back; a quota air pressure valve is disposed on the sealing choke plate; the fairing body is provided with pressure reducing holes; the high-pressure gas cavity, the transition cavity and the sub-high-pressure gas cavity form an gas cushion buffer. Gas acceleration holes communicated with the high-pressure gas cavity are further provided in the outer wall of the side fairing, so that a supercavity can be more favorably formed after the underwater vehicle enters water.

Abstract: A light-emitting device includes a patterned substrate, a buffer layer, an epitaxial layered unit, and at least one hole structure. The patterned substrate includes a supporting substrate having an upper surface, and a plurality of protrusions formed on the upper surface. Each of the protrusions includes a base and a cone sequentially stacked in such order on the upper surface. The cone is made of a material different from that of the supporting substrate. The buffer layer formed on a side wall surface of each of the protrusions and the upper surface of the supporting substrate exposed from the protrusions. The epitaxial layered unit is formed on the buffer layer opposite to the patterned substrate. The hole structure is disposed above a top end of at least one of the protrusions. A method for manufacturing the light-emitting device is also disclosed.

Abstract: A battery cell, a battery and an electrical device, and relates to the technical field of batteries. The battery cell includes a shell and a pressure relief component; the shell includes a first wall portion; the pressure relief component is arranged on the first wall portion, a first weak portion of the pressure relief component defines at least one predetermined pressure relief region, and the pressure relief component is configured to be capable of rupturing along at least part of the first weak portion when the battery cell is subjected to pressure relief; the sum of the areas of the predetermined pressure relief regions is S, the first weak portion includes at least one first weak section, and the area of the cross section, perpendicular to an extension direction, of the first weak section is S1, 300 mm2?S?1500 mm2, 0.006 mm2?S1?0.15 mm2.

Abstract: A display panel and a manufacturing method therefor, and a display device are disclosed. The display panel includes a substrate, a plurality of sub-pixels, a pixel definition layer, and an overhang structure. Each sub-pixel includes a first electrode, a light-emitting layer, and a second electrode. The overhang structure is disposed on the pixel definition layer, located between adjacent two sub-pixels, and at least includes a body structure and a top structure covering the body structure. The display panel further includes a third electrode covering the top structure and in contact with the top structure. The overhang structure is conductive. The second electrodes of adjacent two sub-pixels are in contact with side surfaces of the overhang structure, the second electrode of each sub-pixel is disconnected from the third electrode, and the overhang structure and the third electrode collectively function as an auxiliary cathode.

Abstract: A battery cell includes a shell and a pressure relief component, the shell includes a first wall portion, the pressure relief component is disposed on the first wall portion, the pressure relief component includes a first groove and a second groove, the first groove and at least one second groove jointly define at least one predetermined pressure relief region, the pressure relief component is configured to be capable of rupturing along at least a part of the first groove when the battery cell undergoes pressure relief, and the second groove is configured to guide at least a part of the predetermined pressure relief region to be flipped to open the at least a part of the predetermined pressure relief region. A volume of the first groove is V, and a sum of areas of all the predetermined pressure relief regions is A, with 0.05 mm?V/A?0.5 mm.

Abstract: A display panel and a display device. The display panel includes: a drive substrate, a pixel definition layer, multiple light-emitting units, an encapsulation layer, and a first light conversion layer; the pixel definition layer protrudes from the drive substrate and forms open regions; the multiple light-emitting units are disposed within the open regions; the encapsulation layer is disposed on a side of the pixel definition layer away from the drive substrate; the encapsulation layer includes multiple inclined portions that are inclined relative to the drive substrate, with the multiple inclined portions each facing a corresponding non-open region; the first light conversion layer is disposed on a surface of each inclined portion away from the pixel definition layer; the incident light beam includes an invisible light, and the first light conversion layer is configured to convert at least a portion of the invisible light into a visible light for emission.