Abstract: In various embodiments, provided are an electrode plate comprising a main body region and an isolation region, the isolation region is arranged on both sides of the main body along a width direction of the electrode plate, the isolation region is provided with an insulating strip coating, and the main body region is provided with an active material layer, a method for preparing the electrode plate, a secondary battery, a battery module, and a battery pack. An outer edge of the active material layer is confined to a junction between the main body region and the isolation region, and a contact angle between a slurry forming the active material layer and the insulating strip coating is more than 90°, thereby improving the problem of diffusion of the active material slurry along the width direction of the electrode plate, and reducing a defective rate of the electrode plate.

Abstract: Provided are an air nozzle and a coater. The air nozzle includes an air outlet chamber, an air return chamber, and an infrared light assembly, where the air outlet chamber includes an air outlet panel, the air outlet panel facing a substrate to be treated; the air return chamber is provided with an air return panel on a side facing the substrate, the air return panel being provided with a plurality of punch holes for communication with the air return chamber; the air outlet panel is configured to convey a medium inside the air outlet chamber to outside the air nozzle, and the medium enters the air return chamber through the air return panel after passing through the substrate; and the infrared light assembly is provided on a path of the medium entering the air return chamber.

Abstract: A pickleball paddle includes a paddle body and a handle connected to the paddle body. The paddle body includes a substrate layer and a fiber face sheet. The fiber face sheet overlays either surface of the substrate layer. A coating is provided on an outer surface of the fiber face sheet. An outer surface of the coating has a texture formed by directly pressing the coating.

Abstract: In various embodiments, provided are an electrode plate, a method for preparing the same, a secondary battery, a battery module, and a battery pack comprising a main body region and an isolation region, where the isolation region is arranged on both sides of the main body region along a width direction of the electrode plate, the isolation region is provided with an insulating strip coating, and the main body region is provided with an active material layer. An outer edge of the active material layer is confined to a junction between the main body region and the isolation region, and a contact angle between a slurry forming the active material layer and the insulating strip coating is more than 90°, thereby improving the problem of diffusion of the active material slurry along the width direction of the electrode plate, and reducing a defective rate of the electrode plate.

Abstract: A strip diverting mechanism includes a negative pressure unit and an air discharge unit. The negative pressure unit and the air discharge unit are arranged opposite each other, and a gap through which a strip passes is formed between the negative pressure unit and the air discharge unit. The negative pressure unit is configured to provide a suction force to the strip and the air discharge unit is configured to provide a repulsive force to the strip, to prevent the strip from contacting the negative pressure unit and the air discharge unit. The negative pressure unit comprises two air channels located at two sides of the negative pressure unit and configured to discharge air to a direction away from the negative pressure unit, to generate a negative pressure area at a center of the negative pressure unit.

Abstract: The present invention relates to a LAG-3 protein mutant, and a fusion protein and the use thereof. The LAG-3 protein mutant of the present invention has mutations at one or more of the following positions in the domain 2 of a LAG-3 protein: 188, 192, 196, 197, 172, 175, 177, 178, 183, 185, 186, 187, 189, 190, 195, 199, 203, 208, 210, 211, 212, 214, 216, 218, 198, 201, 207 and 209.

Abstract: The present disclosure relates to the field of battery production device technologies, and more particularly, to an oven and a battery assembly line production device. The oven at least includes a first oven unit, a second oven unit, a third oven unit, and a fourth oven unit that are sequentially connected in series in a conveying direction of the electrode plate. Based on drying physical characteristics of the electrode plate, the first oven unit and the third oven unit are internally provided with air nozzles and infrared heaters for drying the electrode plate by hot air and infrared rays. The second oven unit and the fourth oven unit are internally provided with the air nozzles for drying the electrode plate by hot air.

Abstract: A strip diverting mechanism includes a negative pressure unit and an air discharge unit. The negative pressure unit and the air discharge unit are arranged opposite each other, and a gap through which a strip passes is formed between the negative pressure unit and the air discharge unit. The negative pressure unit is configured to provide a suction force to the strip and the air discharge unit is configured to provide a repulsive force to the strip, to prevent the strip from contacting the negative pressure unit and the air discharge unit.

Abstract: A pickleball paddle includes a grip and a paddle body. The paddle body includes a ball-hitting portion and a reduced portion. The grip is connected to the reduced portion. The reduced portion of the paddle body has a through hole for reducing stress concentration. The through hole is arranged symmetrically relative to a central axis of the grip. The through hole is located in the reduced portion and passes through the reduced portion.

Abstract: A power conversion module and method of forming the same includes a motherboard having a first surface and a second surface that opposes the first surface. The motherboard includes a first trace that electrically couples a decoupling capacitor mounted on the motherboard to a first pad on the first surface of the motherboard and an output node of a power conversion module. The motherboard includes a via extending through the motherboard that electrically couples a second pad on the first surface of the motherboard and a third pad on the second surface of the motherboard to the output node and a second trace that electrically couples a fourth pad on the second surface of the motherboard and the decoupling capacitor. The power module includes a first daughterboard mounted on the first surface of the motherboard and a second daughterboard mounted on the second surface of the motherboard.

Abstract: Provided are an air nozzle and a coater. The air nozzle includes an air outlet chamber, an air return chamber, and an infrared light assembly, where the air outlet chamber includes an air outlet panel, the air outlet panel facing a substrate to be treated; the air return chamber is provided with an air return panel on a side facing the substrate, the air return panel being provided with a plurality of punch holes for communication with the air return chamber; the air outlet panel is configured to convey a medium inside the air outlet chamber to outside the air nozzle, and the medium enters the air return chamber through the air return panel after passing through the substrate; and the infrared light assembly is provided on a path of the medium entering the air return chamber.

Abstract: A strip diverting mechanism includes a negative pressure unit and an air discharge unit. The negative pressure unit and the air discharge unit are arranged opposite each other, and a gap through which a strip passes is formed between the negative pressure unit and the air discharge unit. The negative pressure unit is configured to provide a suction force to the strip and the air discharge unit is configured to provide a repulsive force to the strip, to prevent the strip from contacting the negative pressure unit and the air discharge unit.

Abstract: The present application discloses an electrode plate for a battery, a battery and a power consuming device. The electrode plate for a battery may comprise: a substrate, at least one binding layer and at least one barrier layer laminated in sequence on the substrate, wherein the binding layer and the barrier layer may be distributed alternately in the thickness direction; the binding layer may comprise a first binder; and the barrier layer may comprise a multi-component copolymer different from the first binder and an optional second binder, identical to or different from the first binder in the binding layer, wherein the multi-component copolymer may be a linear multi-component copolymer.

Abstract: A power conversion module and method of forming the same includes a motherboard having a first surface and a second surface that opposes the first surface. The motherboard includes a first trace that electrically couples a decoupling capacitor mounted on the motherboard to a first pad on the first surface of the motherboard and an output node of a power conversion module. The motherboard includes a via extending through the motherboard that electrically couples a second pad on the first surface of the motherboard and a third pad on the second surface of the motherboard to the output node and a second trace that electrically couples a fourth pad on the second surface of the motherboard and the decoupling capacitor. The power module includes a first daughterboard mounted on the first surface of the motherboard and a second daughterboard mounted on the second surface of the motherboard.

Abstract: A luminous basketball backboard includes a light guide backboard and a basketball rim disposed on a front side of the light guide backboard. The light guide backboard is provided with an LED light for emitting light toward the light guide backboard. A front face or a rear face of the light guide backboard has a plane area and a pattern area. The pattern area and the plane area are in different planes. When the LED light emits light, the pattern area of the light guide backboard changes a light propagation route so that the pattern area has a darker light color than that of the plane area, thereby presenting a corresponding decorative effect, such as patterns, characters, and logos.