6results about How to "Decrease decay rate" patented technology

The invention discloses a power battery capacity correction method, a storage medium and electronic equipment, and the method comprises the steps: responding to the starting of a battery meter display charging correction function, and obtaining vehicle charging data and / or battery energy and driving data; determining a battery meter display charging SOC upper limit according to the vehicle charging data and / or the battery energy consumption data, and controlling the charging upper limit of the battery to be the battery meter display charging SOC upper limit; and if the upper limit of the charging SOC displayed by the battery meter is less than 100%, judging whether the time from the last full charging time of the battery to the current time exceeds a preset time threshold value, and if yes, controlling the upper limit of the charging to be that the battery meter is fully charged. The battery meter display charging SOC upper limit conforming to the battery use condition can be determined, when the battery meter display charging SOC upper limit is smaller than 100%, the battery charging upper limit is controlled to be the battery meter display full electricity at the interval of the preset time threshold value, the battery can be prevented from being fully charged and discharged frequently based on the use habit of a user, the attenuation rate of the battery is delayed, and the service life of the battery is prolonged. And the SOC precision of the battery is corrected while the service life of the battery is prolonged.

The invention provides a preparation method of a porous carbon material with a half-slope platform type aperture structure, which comprises the following steps: carrying out hydrothermal reaction on alkali lignin, polyamine and a formaldehyde solution to obtain aminated alkali lignin; carrying out a cross-linking reaction on the aminated alkali lignin and a dialdehyde mixture to obtain a precursor; uniformly mixing the precursor with a pore-foaming agent, carbonizing and activating to obtain a porous carbon material with a half-slope platform type pore diameter structure; the polyamine is selected from one or a combination of two or more of diethylenetriamine, triethylene tetramine and tetraethylenepentamine, and preferably, the polyamine is tetraethylenepentamine. Firstly, polyamine is grafted on the surface of alkali lignin through Mannich reaction, then a dialdehyde mixture compounded by aliphatic dialdehyde and dialdehyde thiophene derivatives is used as a cross-linking agent, and the alkali lignin is cross-linked and cured through reaction between aldehyde groups and amino groups to form a complex highly cross-linked structure. Defects generated during carbonization and pyrolysis of alkali lignin are reduced, and the capacity of inhibiting silicon volume expansion is improved.

The application discloses a needle-tooth shell assembly and a speed reducer, and solves the problem of high difficulty in needle selection and the problem of speed reducer failure caused by needle-tooth groove wear in the prior art. The needle-tooth shell assembly comprises a needle-tooth shell and a needle-tooth sleeve. The needle-tooth sleeve is arranged to be movable on the needle-tooth shell, so that the position of the needle-tooth groove on the needle-tooth sleeve for cooperating with the needle can be adjusted, and the diameter of the needle-tooth shell is adjusted, so that the needle-tooth groove can be adapted according to the selection of the needle, the problem that the needle engagement top gap is too different from the theory due to the error in the diameter screening of the needle in the prior art is solved, the purpose of weakening the adverse effect of the large diameter fluctuation of the needle on the service life of the speed reducer is achieved, the assembly precision of the speed reducer and the service life of the speed reducer are improved, the purpose of reducing the idle stroke of the speed reducer and the attenuation rate of the stiffness curve is achieved, and the service life of the speed reducer is improved.

An injection type flat scroll dynamic filter comprises an upper cover plate and a lower cover plate, wherein a liquid inlet is arranged at the center above the upper cover plate, a concentrated liquid outlet is arranged at the edge of the upper cover plate, a spiral scroll groove wall is arranged below the upper cover plate, a spiral scroll groove is formed between the spiral scroll groove walls, and a spiral scroll flow channel is formed, the head end of the spiral scroll groove is connected to the liquid inlet, the tail end of the spiral scroll groove is connected to the concentrated liquid outlet, and the outlet end of the concentrated liquid outlet is connected to the concentrated liquid guide pipe; a filtrate outlet is arranged at the center below the lower cover plate, a supporting mesh plate is arranged above the lower cover plate, a microporous filter membrane is arranged above the supporting mesh plate, and the microporous filter membrane is located between the supporting mesh plate and the spiral scroll groove wall. The injection type flat scroll dynamic filter described in the present invention has the advantages of improving the filtration efficiency of the injection filter and expanding the use of the injection filter.

The invention belongs to the technical field of jujube preservation, and particularly relates to a composite preservation device and method based on selenium-rich Dongmei jujubes, the composite preservation device comprises a footstone table, the upper surface of the footstone table is fixedly connected with a spraying frame and an air-conditioned warehouse, the inner wall of the spraying frame is provided with a conveyor, and the upper surface of the spraying frame is fixedly connected with a glycerin liquid storage tank; a glycerin liquid storage tank is arranged in the spraying frame, 5% glycerin liquid is arranged in the glycerin liquid storage tank, a liquid pump is fixedly connected to the front face of the glycerin liquid storage tank, the input end of the liquid pump is fixedly communicated with a liquid pumping pipe, the input end of the liquid pumping pipe is fixedly communicated with the front face of the glycerin liquid storage tank, and a glycerin spraying pipe is fixedly embedded in the inner top wall of the spraying frame. According to the method, the jujubes are preserved by combining the post-harvest glycerin spraying treatment and the controlled atmosphere low-temperature preservation treatment, the storage time of the jujubes is greatly prolonged through a composite treatment method composed of glycerin, low-temperature gas components and gas components, the decay rate of the jujubes is greatly delayed, and effective preservation and storage of the jujubes are facilitated.

The invention relates to a control method and device of a fuel cell, electronic equipment and a vehicle. The method comprises the following steps: acquiring a stack-out temperature of the fuel cell of the vehicle; when the out-of-stack temperature is smaller than a preset starting temperature threshold value, the single cell voltage of the fuel cell is determined based on the out-of-stack temperature, so that the fuel cell is controlled to enter a reduction state through the single cell voltage, and reversible attenuation of the fuel cell is recovered; when the out-of-stack temperature is larger than or equal to a preset starting temperature threshold value, the power battery SOC of the vehicle is obtained, and when the power battery SOC is larger than a preset SOC threshold value, the single battery voltage of the fuel battery is determined, so that the fuel battery is controlled to enter a reduction state through the single battery voltage, and reversible attenuation of the fuel battery is recovered. The fuel cell attenuation rate can be reduced, the service life of the fuel cell is prolonged, the power generation efficiency of the fuel cell is improved, vehicle hydrogen consumption is reduced, and economical efficiency and vehicle safety are improved.