Abstract: Provided are an access control method and apparatus, and a device and a storage medium.

Abstract: A top cover assembly and a battery are disclosed. The top cover assembly has a cover, a pole and an upper plastic member. The cover is provided with a first installation through hole. The pole operatively penetrates the first installation through hole and an end of the pole is higher than an upper surface of the cover. The upper plastic member is integrally injection-molded on the cover and surrounding the pole.

Abstract: The present disclosure relates to a top cover for a battery which belongs to the technical field of batteries, comprising: a top cover body; a liquid injection hole formed in the top cover body and having a first side face; a sealing pin accommodated in the liquid injection hole and having a second side face, wherein the first side face is parallel to the second side face, there exists a gap between the first side face and the second side face; and a welding part connecting the sealing pin and the top cover body, and filling at least part of the gap.

Abstract: The present disclosure discloses a top cover assembly of battery and top cover assembly, the top cover assembly comprising: a top cover having first recess on top surface, the first recess is provided around mounting hole; a terminal post penetrating mounting hole, first end of terminal post is limited to a side of top cover on which a bottom surface is located, second end of terminal post is higher than top surface of top cover; an upper plastic member provided on a side of top cover where top surface thereof is located and surrounding second end of terminal post to be connected to second end of the terminal post, the upper plastic member has a first boss on a bottom surface, the first boss is accommodated in the first recess, the bottom surface of the upper plastic member is connected to the top surface of the top cover.

Abstract: The present disclosure discloses a top cover assembly and a battery. The top cover assembly comprises a top cover plate and an explosion-proof sheet. The explosion-proof sheet is configured for being connected to the top cover plate to close an explosion-proof hole formed in the top cover plate, and the explosion-proof sheet comprises: a connecting portion, a body portion, a weak portion and a reinforced portion, the connecting portion is configured for being connected to the top cover plate, the body portion is connected to the connecting portion and configured for closing the explosion-proof hole corresponding to the explosion-proof hole, the weak portion is located between the body portion and the connecting portion, the reinforced portion is convexly arranged on the body portion, along thickness direction of the explosion-proof sheet, the thickness of the reinforced portion is h1, the thickness of the body portion is h2, and 1<(h1+h2)/h2?2.8.

Abstract: An electrode assembly for a battery and a battery are provided. The assembly has a winding main body. the winding main body has a side end face. Multiple tabs are extendedly provided on the side end face. The tabs are stacked to form a tab group. Each tab has a first side edge, a second side edge, a third side edge and a fourth side edge connected in sequence. The first side edge is opposite to the third side edge. The second side edge is opposite to the fourth side edge. The fourth side edge is fixedly connected with the side end face. The first side edge of at least one tab in the tab group is staggered in a first direction with respect to the first side edge of the topmost tab of the tab group.

Abstract: An explosion-proof sheet, a top cover assembly of a secondary battery, and a secondary battery are provided. The explosion-proof sheet has a pressure release portion arranged oppositely to the explosion-proof hole, a fixing portion surrounding the pressure release portion and connected to the top cover, a connecting portion located between the pressure release portion and the fixing portion for connecting the pressure release portion to the fixing portion. A thickness of a part of the connecting portion is greater than a thickness of the remaining part of the connecting portion.

Abstract: An explosion-proof sheet of a secondary battery and a secondary battery are provided. The explosion-proof sheet has a main body portion, a fixing portion, and a cracking portion. The main body portion is opposite to the explosion-proof hole. A strengthening region is formed on the main body portion. The fixing portion is disposed around the main body portion, and the fixing portion is connected to a periphery of the explosion-proof hole. The cracking portion is located between the fixing portion and the main body portion and connected to the fixing portion and the main body portion.

Abstract: The present invention provides a method and an apparatus of monocrystal growth. The method comprises providing an apparatus comprising a crucible, a first lifting device for lifting the crucible, a deflector tube and a second lifting device for lifting the deflector tube; setting a theoretical distance between the deflector tube and the melt surface, determining a theoretical ratio of the crucible lifting rate relative to the monocrystal lifting rate based on sizes of the crucible and the monocrystal, and starting to grow the monocrystal. During the growth, the position of one or more of the crucible, the deflector tube and the monocrystal is adjusted, the actual distance between the deflector tube and the melt surface is real-time detected, the deviation value between the theoretical and the actual distances is calculated, a variation of the ratio is obtained by the deviation value, and the theoretical ratio is adjusted based on the variation.

Abstract: In some aspects, the present disclosure provides a method for high dynamic range (HDR) video rotation. The method includes receiving, by a display processor, an indication that a frame rotation animation process for video playback has been initiated, the display processor comprising a display processor pipeline. The method also includes determining whether the video playback is an HDR format or another format. In response to the determination and receiving the indication: bypassing a loading of the frame rotation animation into a first portion of the display processor pipeline, and loading the frame rotation animation into a second portion of the display processor pipeline if the video playback is in an HDR format.

Abstract: A top cover assembly for a battery, a battery, and an energy storage device are provided in the disclosure. The top cover assembly for a battery includes a pole and a pressing block. The pressing block defines a limiting hole. The pole extends through and is at least partially located in the limiting hole. The limiting hole has a first hole section and a second hole section axially connected with the first hole section. The first hole section has a radial size larger than the second hole section. In the top cover assembly for a battery according to implementations of the disclosure, the first hole section and the second hole section connected in the axial direction can make an inner circumferential wall of the limiting hole stepped.

Abstract: A top cover assembly for a battery, a battery, and an energy storage device are provided in the disclosure. The top cover assembly includes an insulating cover plate, a top cover plate, an insulating member, and a current collector stacked in sequence. A surface of the first flange close to the insulating member, an inner circumferential wall of the mounting hole, and a surface of the top cover plate close to the first flange and extending beyond the inner circumferential wall of the mounting hole define a sealing cavity. An inner circumferential wall of the through hole and an outer circumferential wall of the main body define a gap therebetween, the gap communicates with the sealing cavity, and a sealing member is received in the sealing cavity.

Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for reducing gamut mapping luminance loss. A gain value of at least one primary color may be reduced in a native color gamut based on an analog technique (e.g., using a DDIC in a display panel) to provide a reduced color gamut that is smaller than the native color gamut. The reduced color gamut may have a same luminance as the native color gamut. One or more colors included in the native color gamut may be mapped via a digital technique (e.g., using a DPU or other processor) to the reduced color gamut. The mapping may be configured to provide a threshold level of color accuracy in the reduced color gamut.

Abstract: A top cover assembly for a battery, a battery, and an energy storage device are provided in the disclosure. The top cover assembly includes a pole and a current collector having multiple folding sections. The multiple folding sections include at least a first folding section and a second folding section. The first folding section is spaced apart from the second folding section in a length direction of the current collector. The current collector is divided by the first folding section and the second folding section into a first part, a second part, and a third part. The first part is bent toward one side of the second part and connected with the pole. The third part is bent toward the other side of the second part and connected with a wound core of the battery.

Abstract: An explosion-proof valve applicable to a battery, the battery, and an energy storage device are provided in the present disclosure. The energy storage device includes the battery. The battery includes the explosion-proof valve, a housing, a winding core, and a top cover assembly. The explosion-proof valve applicable to the battery includes a body, a first notch groove, and at least one second notch groove. The first notch groove is defined on a side surface of the body. The at least one second notch groove is defined on a groove wall of the first notch groove. The winding core is located in the housing. The top cover assembly seals the housing, where the explosion-proof valve is installed in the top cover assembly, and the first notch groove is defined at a side of the top cover assembly close to the winding core.

Abstract: The present invention discloses a casing for a battery and the battery. The casing for the battery comprises a body. The body comprises a shell and at least one cover; at least one end of the shell is open; the cover is arranged at the one end of the shell; the shell comprises at least one first shell portion and a second shell portion which are connected to each other; the first shell portion is opposite to the cover; a thickness of the first shell portion is larger than that of the second shell portion; and a groove recessed toward a central axis direction of the shell is formed in the first shell portion.

Abstract: The present invention discloses a casing for a battery and a battery. The casing for the battery comprises a body. The body comprises a shell and at least one cover; at least one end of the shell is open; the cover is arranged at the one end of the shell; the shell comprises at least one first shell portion and a second shell portion which are connected to each other; the first shell portion is opposite to the cover; a thickness of the first shell portion is larger than that of the second shell portion; and a mounting portion is arranged at one end of the shell.

Abstract: The present application relates to a pharmaceutical composition comprising polynucleotides and use thereof for prevention or treatment of COVID-19. More specifically, disclosed in the present application is a composition used for prevention or treatment of COVID-19, comprising a polyriboinosinic-polyribocytidylic acid, an antibiotic or polyamino compound, a positive ion, and an optional antigen derived from novel coronavirus SARS-CoV-2. Also provided is use of the composition in preparation of a drug or vaccine for prevention or treatment of novel coronavirus SARS-CoV-2.

Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for reducing a DPU transfer time to compensate for a delayed GPU render time. After completion of rendering a second frame that follows a first frame, a frame processor determines whether the first frame is currently transferring to a display panel or has already been transferred to the display panel. At least one clock is used with a first set of clock speeds when the first frame is determined to be currently transferring and used with a second set of clock speeds when the first frame is determined to have already been transferred, the second set of clock speeds being faster than the first set of clock speeds. After completion of the transfer of the first frame, the second frame is transferred based on the set of clock speeds.

Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for delaying a DSI clock change until there is no new frame update, so that a smoother user interface may be perceived. With more specificity, an apparatus may receive a request to change a speed of a clock for displaying a frame. After receiving the request, the apparatus may determine whether two consecutive frames (e.g., a current frame and a prior frame) have a different layer configuration. If so, the request to change the speed of the clock may be delayed until a new set of two consecutive frames are identified with a same layer configuration or until the delay period reaches a timeout limit.