Abstract: This application discloses a negative active material and a preparation method thereof, a negative electrode plate, a secondary battery, and an electrical device, and relates to the battery field. The negative active material includes: porous carbon, where a surface of the porous carbon is provided with pore channels communicating to an interior of the porous carbon; and, a deposit, settling in the pore channels and including a silicon layer and a functional layer deposited in sequence from an interior of the pore channels outward, where the functional layer is made of a material that includes at least one of carbon, phosphorus, tin, or germanium.

Abstract: This application provides an internal series battery, including a series module including three or more battery units, each including a positive active material layer, a solid electrolyte layer and a negative active material layer stacked, and intermediate current collectors, each disposed between the corresponding two adjacent battery units connected in series therethrough; a positive current collector located at one end of the series module and electrically connected to the positive active material layer of the battery unit at the end; and a negative current collector located at the other end of the series module and electrically connected to the negative active material layer of the battery unit at the end. The battery units include a first battery unit and a second battery unit that have an energy density the same as and different from any one of the battery units at the two ends of the series module respectively.

Abstract: A battery cell, a battery, and an electrical device are described. The battery cell includes an electrode assembly. The electrode assembly is wound along a winding direction to form a jelly-roll structure containing a roll core cavity in a central region. The battery cell further includes a gel-state central column packed in the roll core cavity and formed by coagulation. The central roll core cavity formed by winding the electrode assembly is packed with the gel material that coagulates to form a gel-state central column. In this way, the central column can support the electrode assembly after coagulating in shape, thereby improving the deformation resistance of the electrode assembly, and reducing the risk of central collapse of the electrode assembly. In addition, when the electrode assembly is squeezed, the central column can serve as an elastic cushion to some extent.

Abstract: The invention relates to an anti-coronavirus polypeptide as well as derivatives and application thereof, provides the anti-coronavirus polypeptide, and provides cholesterol-containing derivatives of the polypeptide on the basis of the anti-coronavirus polypeptide. Particularly, the original strain and the variant strain of the SARS-COV-2 have an unexpected inhibition effect, can be used for preparing medicines or vaccines for preventing or treating the new coronavirus, and have great prevention or treatment potential.

Abstract: The present invention provides an active capture device for African Swine fever aerosol and a detection method therefor. The device includes a hollow casing, and an aerosol capture mechanism and an internal circulating filtering mechanism which are disposed inside the casing; the casing includes a top plate and a bottom plate, and an annular side plate is disposed between edge positions of the top plate and the bottom plate; the aerosol capture mechanism includes a ventilation duct disposed at the front end of the annular side plate; one end of the ventilation duct is disposed inside the hollow casing and the other end of the ventilation duct penetrates through the annular side plate and is disposed outside the hollow casing; a fan is disposed inside the casing; the fan is communicated with the ventilation duct; and an adsorption pipe network is disposed inside the ventilation duct.

Abstract: Provided is a pore-forming agent for secondary battery and a preparation method thereof, a negative electrode plate, an electrode assembly, and a secondary battery. The pore-forming agent for secondary battery includes a one-dimensional conductive material and stable-state lithium metal particles, where the stable-state lithium metal particles are loaded on the one-dimensional conductive material.

Abstract: A negative electrode plate, an electrode assembly, a battery cell, a battery, and an electrical device are disclosed. The negative electrode plate includes: a negative current collector and a negative active material layer disposed on the negative current collector. A plurality of pore channels are disposed in the negative active material layer. The technical solution of this application reduces lithium plating on a surface of the negative electrode plate, and reduces the possibility of lithium dendrites growing and piercing the separator, thereby enhancing reliability of the battery.

Abstract: Described herein are compositions and/or ingredients that increase a subject's perception of floral muguet compounds, methods for intensifying a subject's perception of floral muguet compounds, as well as perfumed articles or perfuming compositions including as an active ingredient, at least one compound selected from octanal; (E)-dec-2-enal, 2-phenylpropanal; (E)-but-2-enal; 3-methylbenzaldehyde; 3-(1,3-benzodioxol-5-yl)-2-methylpropanal; (±)-3-(4-methyl-3-penten-1-yl)-3-cyclohexene-1-carbaldehyde, (±)-4-(4-methyl-3-penten-1-yl)-3-cyclohexene-1-carbaldehyde, and mixtures thereof; heptanal, 4-Propan-2-ylbenzaldehyde; (3R)-3,7-dimethyloct-6-enal; (+)-(3S)-3-[(1R)-4-methyl-3-cyclohexen-1-yl]butanal, (+)-(3R)-3-[(1R)-4-methyl-3-cyclohexen-1-yl]butanal, and mixtures thereof; hexanal; 2,6-dimethylhept-5-enal; benzaldehyde; 2-methyl-3-(4-methylphenyl)propanal; 3,5,6-trimethyl-3-cyclohexene-1-carbaldehyde, 2,4,6-trimethyl-3-cyclohexene-1-carbaldehyde, and mixtures thereof; 4-ethylbenzaldehyde; 6-methoxy-2,6-dimethyl

Abstract: The present application relates to a polypeptide for preventing or treating a novel coronavirus and an application thereof. The polypeptide is P3 polypeptide and any one of P3-1 polypeptide, P3-2 polypeptide, P3-3 polypeptide, P3-4 polypeptide, and P3-5 polypeptide derived from the P3 polypeptide. The amino acid sequences of the P3 polypeptide, the P3-1 polypeptide, the P3-2 polypeptide, the P3-3 polypeptide, the P3-4 polypeptide, and the P3-5 polypeptide are respectively shown in SEQ ID NOs: 1-6. The polypeptide of the present application has a strong inhibitory effect on original strains and a plurality of variant strains of the novel coronavirus, and can be used for preparing a drug or a vaccine for preventing and/or treating diseases caused by the novel coronavirus. The polypeptide is expected to also have the potential of preventing and/or treating new variant strains appearing in the future and sarbecovirus.

Abstract: A negative electrode plate for a secondary battery and a preparation method therefor, and a secondary battery comprising the negative electrode plate, a battery module, a battery pack, and a power consuming device are described. The composite lithium metal negative electrode plate of the present application comprises a current collector and an active substance layer coated on at least one surface of the current collector, wherein the active substance layer comprises an active substance and a lithiophilic material having a core-shell structure, and the core of the lithiophilic material contains a lithiophilic substance and the shell thereof is a carbon material.

Abstract: Provided are a positive electrode plate for secondary battery, a manufacturing method thereof, and a secondary battery, battery module, battery pack, and electric apparatus using such positive electrode plate for secondary battery. The positive electrode plate for secondary battery includes a current collector and a positive electrode active substance layer and further includes a porous layer containing a porous carbon material between the current collector and the positive electrode active substance layer.

Abstract: Lithium replenishing spaces are disposed on a current collection structure, such that the lithium replenishing spaces communicate with an active layer on one side; and the battery is replenished with lithium by using lithium replenishing agents in the lithium replenishing spaces to offset an irreversible lithium consumption in a cycle process, so as to increase the total capacity and the energy density of the battery. According to the present application, due to average weights MA of corresponding active materials in different distribution regions on the active layer, a sum V0 of internal volumes of lithium replenishing spaces corresponding to each of the distribution regions is controlled in a positively correlated manner based on a change in the average weights of the active materials in the different distribution regions.

Abstract: Described herein are compositions and/or ingredients that increase a subject's perception of floral muguet compounds, methods for intensifying a subject's perception of floral muguet compounds, as well as perfumed articles or perfuming compositions including as an active ingredient, at least one compound selected from octanal; (E)-dec-2-enal, 2-phenylpropanal; (E)-but-2-enal; 3-methylbenzaldehyde; 3-(1,3-benzodioxol-5-yl)-2-methylpropanal; (±)-3-(4-methyl-3-penten-1-yl)-3-cyclohexene-1-carbaldehyde, (±)-4-(4-methyl-3-penten-1-yl)-3-cyclohexene-1-carbaldehyde, and mixtures thereof; heptanal, 4-Propan-2-ylbenzaldehyde; (3R)-3,7-dimethyloct-6-enal; (+)-(3S)-3-[(1R)-4-methyl-3-cyclohexen-1-yl]butanal, (+)-(3R)-3-[(1R)-4-methyl-3-cyclohexen-1-yl]butanal, and mixtures thereof; hexanal; 2,6-dimethylhept-5-enal; benzaldehyde; 2-methyl-3-(4-methylphenyl)propanal; 3,5,6-trimethyl-3-cyclohexene-1-carbaldehyde, 2,4,6-trimethyl-3-cyclohexene-1-carbaldehyde, and mixtures thereof; 4-ethylbenzaldehyde; 6-methoxy-2,6-dimethyl

Abstract: A battery cell may include an electrode assembly and a buffer pad, where the electrode assembly may include a main body portion and a tab extending from the main body portion, the main body portion may include a first main body region and a second main body region, and the thickness of the first main body region along a first direction (T) may be smaller than the thickness of the second main body region along the first direction (T); and where the buffer pad may include a compressible first side wall, the first side wall may include a first buffer portion and a second buffer portion, the thickness of the first buffer portion along the first direction (T) may be greater than the thickness of the second buffer portion along the first direction, and the buffer pad may be provided on a side face of the main body portion.

Abstract: The various aspects presented herein relate to the perfumery industry. More particularly, the various aspects presented herein relate to assays and methods for screening and identifying compositions and/or ingredients that intensify a subject's perception of target odorant compounds based on the use of particular olfactory receptors activated by the target odorant compound.

Abstract: A compound electrode sheet includes two single electrode sheets, and each single electrode sheet includes a current collector and an active material layer. The current collector is provided with a main body and a protrusion portion, and the protrusion portion is arranged protruding out of the main body in an extension direction of the current collector. The active material layer is arranged on a surface of the main body. The protrusion portions of the two current collectors of the two single electrode sheets are fixedly connected. The active material layers of the two single electrode sheets are arranged opposite to each other.

Abstract: The various aspects presented herein relate to the perfumery industry. More particularly, the various aspects presented herein relate to the use of volatile compositions to limit, decrease or eliminate the perception of sweat malodor. Such compositions include at least one malodor antagonist optionally combined with perfuming ingredients. Such compositions, their use in combination with delivery systems and their applications in consumer products are also objects of the present disclosure.

Abstract: An end cover assembly includes an end cover and a pressure relief member. The pressure relief member is provided in the end cover, and the pressure relief member is provided with an indentation groove. The pressure relief member is configured to crack along the indentation groove to release internal pressure of a battery cell when internal pressure or temperature of the battery cell reaches a threshold. Hardness of the pressure relief member is lower than hardness of the end cover.

Abstract: A secondary battery includes a negative electrode plate. A negative electrode active material layer of the negative electrode plate includes a porous carbon material. The negative electrode active material layer has a pore. The pore runs through or not through the negative electrode active material layer. Lithium metal is present in the pore.

Abstract: Provided are an electrode assembly, a method and system for manufacturing the same, a battery cell, a battery, and an electric apparatus. The electrode assembly includes an electrode member wound along a winding direction, the electrode member includes an electrode body, and the electrode body includes an insulating matrix and a conductive layer disposed on the insulating matrix; and the conductive layer includes a first part coated with an active substance layer and a second part coated with no active substance layer; the second part is provided in a quantity of N, and the N second parts are spaced apart in the winding direction; and in the winding direction, distance between the Mth and (M-1)th second parts is L1., and distance between the Mth and (M+1)th second parts is L2, where both N and M are positive integers, 2 ? M ? N-1, and 0.95 < L2/L1 < 1.05.