Abstract: This application relates to a lithium-ion battery, including a positive electrode, a negative electrode, and an electrolyte, where the negative electrode includes a negative electrode current collector and a negative electrode active material layer containing a negative electrode active material attached to at least one surface of the negative electrode current collector, where an average width-to-length ratio of particles of the negative electrode active material is 0.1-1; an ionic conductivity of the electrolyte is 7-15 mS/cm; and a negative electrode lithiation capacity to positive electrode delithiation capacity ratio CB is 1.05-1.5. An electric apparatus including such lithium-ion battery is also disclosed. The lithium-ion battery has a large-rate fast charging capability and good cycling performance.

Abstract: A thermal-power power electronic direct-hung energy-storage plant backup power system includes a thermal-power grid connection startup/standby unit, a power electronic energy-storage switching unit and a thermal-power plant unit. The thermal-power grid connection startup/standby unit is connected to the power electronic energy-storage switching unit and the thermal-power plant unit, respectively. The power electronic energy-storage switching unit is connected to the thermal-power plant unit.

Abstract: This application relates to a lithium-ion battery, a battery, and an electric apparatus. The lithium-ion battery includes an electrolyte and a positive electrode plate. The electrolyte includes lithium salt, the lithium salt includes lithium hexafluorophosphate, and a mass proportion of the lithium hexafluorophosphate relative to a total mass of the electrolyte is 15% to 20%. The positive electrode plate includes a positive electrode current collector and a positive electrode film layer disposed on at least one side of the positive electrode current collector and containing a positive electrode active material. This application can improve cycling performance of the lithium-ion battery.

Abstract: This application relates to a lithium-ion battery, a battery, and an electric apparatus. The lithium-ion battery includes an electrolyte and a positive electrode plate. The electrolyte includes a lithium salt, where the lithium salt includes lithium hexafluorophosphate, and based on a total mass of the electrolyte, a mass proportion of the lithium hexafluorophosphate is 15% to 20%. The positive electrode plate includes a positive electrode current collector and a positive electrode film layer disposed on at least one side of the positive electrode current collector and containing a positive electrode active material. This application can improve cycling performance of the lithium-ion battery.

Abstract: A light-emitting diode includes a semiconductor layer sequence. The semiconductor layer sequence includes a first semiconductor layer, a second semiconductor layer and an active layer, and further includes a first mesa and a second mesa. The first mesa has a current blocking structure adjacent to the second mesa and a current conduction portion located below the current blocking structure. The first semiconductor has a first surface facing away from the active layer, the first mesa is provided with a second surface facing away from the first surface, a distance between the second surface and the first surface is greater than or equal to a half of a thickness of the first semiconductor layer, and the current conduction portion has a height in a thickness direction of the semiconductor layer sequence being ? to ½ of the thickness of the first semiconductor layer. The light-emitting diode can improve carrier injection efficiency.

Abstract: In a display panel, a driver circuit includes multiple cascaded shift register units. In each display frame, each of the reset clock signal and the output control signal includes multiple effective pulses; A working mode of the display panel includes a first mode. The first mode includes at least one first display frame. The driver circuit includes a first shift register unit. In the first display frame, each of at least part of the output control signal received by the first shift register unit is a first-type output control signal. In the first shift register unit, a time interval between two adjacent effective pulses of the first-type output control signal is a first time interval, and a time interval between two adjacent effective pulses of the reset clock signal is a second time interval. The first time interval overlaps with and is greater than the second time interval.

Abstract: The present application relates to a lithium ion battery and a power consuming device, the lithium ion battery comprising a positive electrode, a negative electrode and an electrolyte solution, wherein the electrolyte solution has a viscosity c of 1-6 mPa·s at 25° C., as measured in accordance with GB/T10247-2008; and the ratio CB of the lithium intercalation capacity of the negative electrode to the delithiation capacity of the positive electrode is 1.05-1.5. The lithium ion battery has high-rate fast charging capability and good cycling performance.

Abstract: The disclosure provides a power battery top cover, a battery and an electrical device. The power battery top cover includes: a top cover plate, and a first electrode terminal assembly and a second electrode terminal assembly are mounted on the top cover plate; the first electrode terminal assembly includes an electrode member and a connecting piece, wherein the electrode member is formed by protruding upward from the top cover plate; and the connecting piece includes a body portion and a connecting portion, the connecting portion is provided at an end portion of the body portion, a recess is provided at the bottom of the top cover plate, and at least a part of the connecting portion is embedded in the recess. In the disclosure, the insulation fitting and the air-tightness fitting are omitted, thereby facilitating reduction of the production cost of the top cover.

Abstract: A three-dimensional reconstruction method, comprising: performing slide calculation on an acquired current image frame to obtain to-be-processed windows; performing point feature extraction and line feature extraction on the to-be-processed windows, and determining corresponding features in each to-be-processed window; performing iterative quadtree splitting for circles on each target to-be-processed window to obtain circular regions of interest corresponding to each target to-be-processed window; performing feature screening on features in the target circular regions of interest to obtain target features corresponding to each target circular region of interest; and performing three-dimensional reconstruction corresponding to the current image frame by using the target features.

Abstract: Provided is a display panel. In the same shift register unit, an input module receives an input signal and a scan control signal and controls a signal of a first node; a reset module receives a reset clock signal and the scan control signal and controls a signal of a second node; an output module receives the signal of the first node, the signal of the second node, a first level signal, and an output clock signal and outputs a gate drive signal; and the refresh control module controls, according to the first refresh control signal, the time interval of the active level of the gate drive signal output by the shift register unit, and controls, according to the second refresh control signal, the time period of the inactive level of the gate drive signal output by the shift register unit.

Abstract: Provided are a sample image analyzer and a corresponding method. The sample image analyzer includes: an object stage for supporting a sample carrier; an imaging device for capturing an image of an object in a sample on the sample carrier; a driving device for driving the object stage and the imaging device to move relative to each other; and a control device configured to control the driving device to deliver the sample carrier to a position below the imaging device, control the driving device to drive the object stage and the imaging device to move horizontally relative to each other, and to move vertically relative to each other, control the imaging device to capture, at least during the relative vertical movement, images of the object at different horizontal positions and at different vertical positions, and fuse the images of the object to obtain a target image of the object.

Abstract: The present application discloses a lithium-ion battery, which has a positive electrode sheet, a negative electrode sheet, a separator, and an electrolyte solution comprising a lithium salt and a solvent, wherein based on the total weight of the electrolyte solution, the percentage by mass of the lithium salt in the electrolyte solution is a %, and the lithium ion battery satisfies 5?a?10; and the load on single side of the negative electrode sheet is W grams per 1540.25 mm2, and a and W satisfy 25?a/W?50; and the solvent comprises dimethyl carbonate. The lithium ion battery has good safety and high-temperature cycling performance, and also has good kinetic performance.

Abstract: A decoration and an electronic device are provided. The decoration includes: a decorative ring; a flexible fixing member, where the flexible fixing member is disposed on an outer surface of the decorative ring; and a first fixing member disposed on a side of the flexible fixing member away from the decorative ring and connected to the flexible fixing member, where the first fixing member is further connected to the outer surface of the decorative ring.

Abstract: A song playing method includes: playing an original vocal of a target song in a song listening mode; reducing a volume of the original vocal in response to a first continuous following behavior for the target song, the first continuous following behavior being a continuous following behavior made with playing progress of the target song; switching from the song listening mode to a song singing mode in response to a second continuous following behavior after the first continuous following behavior, the second continuous following behavior being different from the first continuous following behavior, and being a continuous following behavior that is made with the playing progress of the target song and is generated after the first continuous following behavior; and playing, in the song singing mode, a song accompaniment of the target song from song progress of the target song that is indicated by the original vocal.

Abstract: A light-emitting diode and a light-emitting device are provided. A transparent conductive layer, a current blocking layer and a first metal reflective layer are sequentially arranged on a side of a second semiconductor layer away from an active layer. A side of the first metal reflective layer adjacent to the current blocking layer is a first Al reflective layer, and metal Al has high reflectivity in a short-wave band, increasing the reflection of light radiated by the active layer. Since there is no need to form an adhesion layer between the first Al reflective layer and the current blocking layer, there is no light absorption problem of the adhesion layer. A projection area of the first metal reflective layer is greater than or equal to that of the transparent conductive layer, so that the first metal reflective layer can cover a larger light-emitting surface, thereby further improving the light reflection.

Abstract: The present application provides a secondary battery, a battery module, a battery pack, and an electrical device. The secondary battery includes a positive electrode plate and an electrolytic solution; the positive electrode plate including a positive electrode active material; the electrolytic solution includes a boron-containing salt; a mass percentage of the boron-containing salt based on the total mass of the electrolytic solution is denoted as A %; an upper-limit potential of the positive electrode active material with respect to lithium metal is denoted as V1 (V); and the secondary battery satisfies: 0<A/(V1?4.1)?4 and V1>4.1; optionally, 0<A/(V1?4.1)?3. The present application is capable of improving the cycle capacity retention and cycle DCR growth rate of secondary batteries.

Abstract: Disclosed are a composite electrode terminal, a top cover and a battery, which relate to the technical field of batteries; the composite electrode terminal includes an inner electrode terminal and an outer electrode terminal; the inner electrode terminal is provided with a first fitting portion; the outer electrode terminal is provided with a second fitting portion fitting with the first fitting portion; one of the first fitting portion and the second fitting portion is a recessed groove, and the other of the first fitting portion and the second fitting portion is a protrusion; and when the first fitting portion is fitted with the second fitting portion, the circumferential edge of the protrusion is fitted with the circumferential edge of the inner wall of the recessed groove, and the end face of the protrusion is attached to the bottom of the recessed groove.

Abstract: The present disclosure is directed towards a treatment planning system for use in a stereotactic radiotherapy system. In particular, the disclosed systems and methods may be used for generating a treatment plan and/or verifying an existing treatment plan. Moreover, the disclosed systems and methods may be suitable for use in a clinical setting. A method for verifying a treatment plan of a stereotactic radiotherapy device may include the steps of receiving a treatment plan, generating a second treatment plan by applying a modified monte-carlo method to regions of interest in the treatment plan, and identifying discrepancies between the received treatment plan and the generated second treatment plan.

Abstract: A secondary battery, a battery module, a battery pack, and an electrical device are disclosed. The secondary battery includes a positive electrode plate including a positive electrode film layer, a negative electrode plate including a negative electrode film layer, an electrolytic solution, and a solid electrolyte; the solid electrolyte is disposed on a surface of the positive and/or negative electrode film layer and includes a polymer matrix and a first additive, and the first additive is configured to form an interface film on the surface of the positive and/or negative electrode film layer, where a mass percentage of the polymer matrix relative to a total mass of the solid electrolyte is denoted as A %; and a mass percentage of the first additive relative to the total mass of the solid electrolyte is denoted as B %, and the secondary battery satisfies 0.1?B/A?19.

Abstract: Provided is a pair of smart glasses. The smart glasses include a front frame, and legs rotatably connected to the front frame through a rotating module. A heat conducting structure is housed in the rotating module. The heat conducting structure includes an upper flange and a lower flange that are closely fitted in an up and down direction and rotatable relative to each other. The upper flange is connected to a front frame heat pipe provided in the front frame, and the lower flange is connected to a leg heat pipe provided in the legs and rotates with the leg heat pipe.