55results about How to "Improve conduction ability" patented technology

The invention belongs to the technical field of battery materials, and discloses modified asphalt-based hard carbon as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing asphalt and a nitrogen-containing compound, carrying out a first heating reaction in a protective gas atmosphere, cooling, and carrying out a second heating reaction to obtain doped asphalt, carrying out oxidation treatment on the doped asphalt to obtain an oxidized material; and carrying out pre-carbonization and carbonization treatment on the oxidized material in a protective gas atmosphere to obtain the modified asphalt-based hard carbon. The doping of the gradient heating nitrogen element is beneficial to the construction of a three-dimensional conductive network and a flexible skeleton, and the conductivity and the structural stability of the modified asphalt-based hard carbon are enhanced, so that the electrochemical performance of the modified asphalt-based hard carbon is improved.

The invention provides a perovskite-crystalline silicon laminated cell, which comprises a heterogeneous crystalline silicon cell, a tunnel junction, a conductive layer, a first carrier transport layer, a perovskite light absorption layer, a second carrier transport layer and a transparent electrode layer which are sequentially laminated, wherein the first carrier transport layer comprises a dendritic structure facing and extending into the perovskite light absorption layer, and the length of the dendritic structure is smaller than the thickness of the perovskite light absorption layer. According to the perovskite-crystalline silicon laminated cell provided by the invention, through the arrangement of the dendritic structure with a relatively good capillary effect in the first carrier transport layer, a high-quality perovskite absorption layer can be formed, so that the energy conversion efficiency of the perovskite-crystalline silicon laminated solar cell is greatly improved.

The invention relates to the technical field of railway line flaw detection, in particular to railway line automatic comprehensive flaw detection equipment which comprises two steel rails and a flaw detection car and further comprises a C-shaped mounting plate, a buffer assembly, a waist detection mechanism and a bottom detection mechanism. A first fixing rod is transversely arranged in the C-shaped mounting plate, fixing sleeves are slidably connected to the two ends of the first fixing rod correspondingly, and balance assemblies are arranged at the ends, away from each other, of the two fixing sleeves correspondingly. The device has the advantages that different detection assemblies are arranged for different detection areas, so that steel rail detection of different parts is more efficient and accurate, it is ensured that different types of defects can be detected, the detection period is shortened, the balance assembly and the buffer assembly cooperate with each other to enable the head detection assembly to keep a dynamic balance state, and the detection efficiency is improved. The probe is effectively protected from vibration damage, and the adaptability of the probe to the change of the steel rail and the detection stability of the probe are improved.

The invention provides a proton exchange membrane, a preparation method thereof and a fuel cell, and relates to the technical field of fuel cells. The proton exchange membrane comprises a base material with a porous structure, pores of the base material contain active components, and the active components comprise a heteropolyacid modified MOF material and sulfonated polyfluorene biphenyl indole; the weight ratio of the heteropoly acid to the MOF material is 1: (1-3). The proton exchange membrane provided by the invention has the characteristics of excellent mechanical durability, high proton conductivity and ultra-thinness, and can improve the mechanical strength, ductility and chemical stability of the membrane while reducing the expansion of the membrane.

The invention discloses a multi-storage-location aging test device, and relates to the technical field of new energy battery pack testing. The multi-storage-location aging test device comprises a base, the top of the base is fixedly connected with a test mechanism, and the outer wall of the base is fixedly connected with a U-shaped bin. According to the multi-storage-location aging test device, the flowing assembly is matched with the moving assembly, a heater generates heat, a fan blows airflow to perform all-dimensional uniform temperature rise on a battery pack in the test bin through an airflow hole, an electric sliding block drives the heater and the fan to change the airflow direction through the arc-shaped design of a sliding rail, and multi-angle temperature rise is achieved; the device can place a plurality of battery packs into the test bin to be tested, the test efficiency is improved, meanwhile, the electromagnetic mechanism is used for heating the side face of the test bin, the heater is combined with heat conduction of the bottom of the test bin, comprehensive heating of the battery packs is achieved, and the reliability of the test result is ensured.

The utility model provides an air-cooled closed case suitable for a 6U module. The air-cooled closed case suitable for the 6U module comprises a closed case body used for containing the 6U module and a fan module used for dissipating heat of the case body. A pair of oppositely-arranged ground box walls of the case is configured to be of a heat dissipation plate structure; the heat dissipation plate structure comprises a heat conduction mounting plate, and a plurality of heat dissipation fins are arranged on the side, facing the exterior of the closed cavity, of the heat conduction mounting plate and are arranged at equal intervals in the length direction of the heat conduction mounting plate; a plurality of heat conduction bosses are arranged on the side, facing the interior of the closed cavity, of the heat conduction mounting plate and are arranged at equal intervals in the length direction of the heat conduction mounting plate. Every two adjacent heat conduction bosses form a guide groove; the 6U module is fixedly connected in the guide groove through the module heat conduction plate and the auxiliary heat conduction plate. The air-cooled closed case is more reasonable in air duct design, optimized in heat dissipation path, improved in heat transfer efficiency and enhanced in heat dissipation capability, and provides good working environment conditions for functional modules.

The invention discloses a method for synthesizing a biomass-based carbon material by coupling activation through a molten salt method, which comprises the following steps: (1) crushing a biomass raw material into powder, and pre-carbonizing at high temperature in an inert atmosphere to obtain biochar; (2) mixing biochar, chlorate molten salt and an activating agent, and calcining at high temperature in an inert atmosphere to obtain a carbon material; and (3) washing the obtained carbon material with water, carrying out suction filtration after water washing, then carrying out acid washing, carrying out suction filtration after acid washing, then carrying out water washing until eluate is neutral, and then drying to obtain the biomass-based carbon material. The invention also discloses an application of the carbon material prepared by the method in preparation of a supercapacitor. The biomass-based capacitor carbon material prepared by the invention has a graded porous structure, micropores are beneficial to improving the surface adsorption capacity of ions, mesopores can provide more active sites and enhance the ionic conductivity, and macropores can provide a rapid substance transmission channel and reduce the mass transfer resistance; through an electrochemical performance test, when the material is used as a supercapacitor electrode material, the material has excellent capacity and cycling stability.

This invention discloses an insulating encapsulation structure and connection method for a probe temperature sensor, relating to the field of temperature sensor technology. The insulating connection bracket has an outer insulating and thermally conductive protective layer, and contains insulating adhesive and a temperature-sensing component. The specific implementation is as follows: an insulating layer assembly, a built-in snap-fit ​​structure within the insulating connection bracket, and an eccentric cavity for housing the temperature-sensing component. A thermistor glass body is used as the insulator. In the insulation process, direct contact between the glass body and the inner wall of the bracket reduces one useless insulating layer. The cavity formed by the end of the insulating connection bracket and the insulating layer assembly houses the temperature-sensing component. The cavity contains a clearance structure for the thermistor pins and multiple layers of insulation between the pins and the conductive copper wires. A fluid insulating adhesive is used, and then the insulating connection is cured. Finally, the encapsulation is placed inside a metal shell containing insulating adhesive and cured, thus forming multiple layers of effective insulation and sufficient safe insulation thickness between the thermistor conductive pins and the metal shell.

This invention provides a composite electrode for the comprehensive recovery of valuable metals, its preparation method, and its application. The composite electrode comprises a positive electrode active layer and a modified matrix layer. The modified matrix layer includes a tubular solid electrolyte body and a modified material layer disposed on the surface of the tubular solid electrolyte body; the modified material layer comprises a conductive polymer. The electrochemical lithium extraction combined with chemical reduction leaching of nickel, cobalt, and manganese using this composite electrode not only achieves high-efficiency recovery of valuable metals such as lithium, nickel, cobalt, and manganese, but also significantly reduces wastewater treatment costs and environmental risks.

The present invention discloses a steel pipe gap detection device, which relates to the technical field of detection equipment. It includes a detection component, which includes a rotating ring, a scraper block and a detection module. The scraper block and the detection module are arranged in the inner cavity of the rotating ring. The scraper block can clean the outer surface of the steel pipe weld, and the detection module can perform ultrasonic detection on the steel pipe weld. The device has a small structure and light weight. It can be easily transported to the welding site and detect the welding pipeline without the help of tools, eliminating the link of transporting the welding pipeline, greatly facilitating the weld detection of the welding pipeline. The scraper block can clean the weld of the welding pipeline and remove the welding slag on the surface of the weld to prevent the welding slag from affecting the detection effect. The conduction component of the detection module can effectively conduct ultrasonic signals. The coupling water in the sealing tube further enhances the conduction effect of the conduction component, thereby improving the detection effect of the ultrasonic probe.

The invention belongs to the field of medical equipment, and particularly relates to a coupling agent smearing head for a color ultrasound instrument and a support thereof.The coupling agent smearing head comprises a probe body, the front end of the probe body is fixedly connected with a fixing shell, an extrusion mechanism is arranged in the fixing shell and comprises a mounting groove, and the mounting groove is formed in the fixing shell; the bottom end of the inner wall of the mounting groove is fixedly connected with a plurality of sets of connecting springs, the top ends of the connecting springs are fixedly connected with a fixing plate, the fixing plate is fixedly connected to an extrusion plate, the extrusion plate abuts against the bottom end of a hose, the hose is filled with a coupling agent, and the top end of the hose abuts against an abutting pipe. Through the structural design of the extrusion mechanism, the coupling agent can be smeared on a corresponding examination area along with the continuous movement of the probe main body, so that the coupling agent can be accurately smeared on the skin of an examinee, the waste of the coupling agent is reduced, and meanwhile, the discomfort of the examinee caused by the coupling agent can be relieved.

This invention belongs to the field of lithium battery material technology, specifically relating to a metal oxide / mesoporous manganese dioxide / conductive polymer composite material, its preparation method, and its application. The preparation method includes the following steps: 1) ball milling a commercial metal oxide; 2) mixing the metal oxide powder with an organic polymer monomer and a methyl orange solution and ultrasonically dispersing the mixture to obtain a liquid mixture; 3) adding a potassium permanganate solution to the liquid mixture and performing a high-pressure hydrothermal reaction under stirring to obtain the composite material; 4) subjecting the composite material to alkali treatment, filtering, washing with water, and drying to obtain the metal oxide / mesoporous manganese dioxide / conductive polymer composite material. This metal oxide / mesoporous manganese dioxide / conductive polymer composite material can be used to prepare lithium battery cathode materials with high specific capacity, high conductivity, and high stability in a simple, efficient, and low-cost manner. It is easy to industrialize and solves the problems of low conductivity and poor rate discharge performance of traditional metal oxide cathode materials.

This invention provides a CAN converter with a heat dissipation structure, including a CAN converter body and a heat dissipation shell on the outside of the CAN converter body. A heat dissipation cavity is formed between the heat dissipation shell and the CAN converter body. Support legs are installed at the four corners of the bottom side of the heat dissipation shell. The heat dissipation shell includes an inner thermally conductive layer and an outer heat dissipation fin layer. This invention is reasonably designed. By setting up a heat dissipation shell, the thermally conductive layer quickly conducts heat, the heat dissipation fin layer increases the heat dissipation area, and a cooling fan forms forced convection cooling. The combination of multiple heat dissipation methods significantly improves the heat dissipation efficiency of the CAN converter body, enabling it to quickly and effectively dissipate the heat generated by the CAN converter body and reduce the operating temperature of the device. The addition of a thermally conductive silicone pad reduces the thermal resistance between the CAN converter body and the heat dissipation shell, further improving the heat conduction effect and ensuring that heat is transferred to the heat dissipation shell for dissipation in a timely manner.

The application provides a battery, a battery pack and a power utilization device, the battery comprising a negative electrode sheet, the negative electrode sheet comprising a negative electrode current collector and a negative electrode active material layer arranged on at least one side of the negative electrode current collector; the negative electrode active material layer comprising a negative electrode active material; the negative electrode active material comprising a negative electrode active substance and a coating layer existing on the surface of the negative electrode active substance, the coating layer comprising amorphous carbon; and a SEI film existing on the surface of at least part of the negative electrode active material of the negative electrode active material layer, the SEI film containing fluorine elements and oxygen elements, and the atomic ratio of the oxygen elements to the fluorine elements in the SEI film being (1.5-7.5):1. The application can improve the fast charging performance, high-temperature storage and high-temperature cycle performance of the battery.

The utility model discloses a mattress which comprises a refrigerating assembly, and the refrigerating assembly comprises a refrigerating device, a heating device and a heating device, the radiating part comprises a plurality of radiating fins which are arranged in sequence; the number of the heat conduction parts is one or more, through holes corresponding to the heat conduction parts are formed in the cooling fins respectively, all the through holes corresponding to the same heat conduction part are coaxially formed, one end of each heat conduction part is fixed to the hot end of the refrigeration device, and the other end of each heat conduction part penetrates through the corresponding through hole and is fixed to the corresponding cooling fin. According to the refrigeration assembly, the heat conduction part is arranged to conduct heat generated by the refrigeration device to the heat dissipation part, heat dissipation is conducted through the heat dissipation part, on one hand, the heat dissipation device can be arranged away from the refrigeration device, the situation that the dissipated heat influences refrigeration of the refrigeration device is avoided, and the refrigeration effect is guaranteed. On the other hand, the heat conduction part is arranged to conduct heat, the heat conduction area is increased, the conduction effect is improved, and the heat dissipation effect is improved.

The invention belongs to the field of battery materials, and particularly relates to a preparation method of a clay / polyether artificial composite solid electrolyte, which is obtained by polymerizing a precursor solution containing a polyether monomer, a cross-linking agent, an initiator, an electrolyte salt and modified clay, the modified clay is clay which is firstly intercalated by metal M ions and then grafted and modified by a formula 1 # imgabs0 #; the metal M comprises at least one of Li, Na and K; r1 is alkyl of C1 to C6; r2 is a substituted alkyl group with a substituent group; the substituent group comprises at least one of an amino group, an epoxy group, a sulfydryl group, an acryloyloxy group, a vinyl group and an isocyanate group. The invention also discloses the clay / polyether artificial composite solid electrolyte prepared by the preparation method and application thereof. According to the invention, ionic conduction can be improved, and the problem of clay segregation can be improved, so that the electrochemical performance of the composite solid electrolyte can be remarkably improved.

The utility model relates to the field of electrically-fused brick pouring molds, in particular to an electrically-fused brick pouring mold, which adopts the technical scheme that the electrically-fused brick pouring mold comprises a lower closing mold and an upper closing mold, a lower mold groove is formed in the top surface of the lower closing mold, an upper mold groove is formed in the bottom surface of the upper closing mold, a metal inner net is embedded in the lower closing mold, a material injection groove is formed in the lower closing mold, and the metal inner net is embedded in the material injection groove. And one end of the material injection groove extends to the top surface of the lower closing mold, and the other end of the material injection groove penetrates through the lower closing mold and extends to the top surface of the inner wall of the upper mold groove. The mold has the beneficial effects that a plurality of mold closing inner cavities are communicated through the inclined material injection groove, so that the effect of simultaneously injecting raw materials into the plurality of mold inner cavities through one material injection groove is achieved; the production efficiency of the electrically-fused bricks is greatly improved, the metal grids embedded in the mold are knocked, external vibration is conducted into the mold, the effects of improving the vibration conduction capacity of the mold and eliminating air holes generated in raw materials through vibration are achieved, and the quality of the finished electrically-fused bricks is greatly improved.

The invention relates to the technical field of display, in particular to an organic compound and application thereof. The organic compound provided by the invention has the structure as shown in the formula (1), so that the organic electroluminescent device containing the organic compound has relatively low driving voltage, relatively high current efficiency and relatively long service life.

This invention discloses a method for preparing a non-fluorinated composite proton exchange membrane. The method uses sulfonated polyether ether ketone (PEEK) as the matrix and incorporates two specific sulfonated covalent organic framework materials. The addition of the sulfonated covalent organic framework forms a continuous hydrogen bond network and highly efficient proton transport channels within the membrane, significantly improving proton conductivity. The composite membrane achieves a proton conductivity of up to 0.41 S / cm at 80°C, approximately three times higher than the unmodified matrix. Simultaneously, the rigid structure of the covalent organic framework effectively enhances the membrane's mechanical strength, increasing its tensile strength to 75 MPa, achieving a synergistic enhancement of proton conductivity and mechanical properties. The non-fluorinated composite proton exchange membrane prepared by this invention exhibits a stable composite membrane structure and excellent overall performance, making it suitable for applications such as proton exchange membrane water electrolysis for hydrogen production.

The invention discloses a composite proton exchange membrane based on large-area single-layer nano-porous graphene Nafion and a preparation method of the composite proton exchange membrane. The preparation method comprises the following steps: firstly, performing plasma etching to obtain a graphene / copper foil sample; spin-coating Nafion latex on the graphene surface of the graphene / copper foil sample; the spin-coated graphene / copper foil sample is dried and cured, a Nafion film is hot-pressed on the spin-coated surface of the graphene sample, and a Nafion / graphene / copper foil sample is obtained; the method comprises the following steps: etching a Nafion / graphene / copper foil sample in an etching solution, then washing the sample, and completing etching, cleaning and airing of the residual copper foil; the Nafion latex is continuously spin-coated; the spin-coated Nafion / graphene sample is dried and cured, and then the spin-coated Nafion / graphene sample and a Nafion thin film are subjected to hot-pressing compounding; and soaking the Nafion / graphene / Nafion sample in an acid solution, and airing to obtain the proton exchange membrane based on the large-area single-layer nano-porous graphene Nafion composite. According to the invention, the bottleneck of performance improvement caused by insufficient selectivity of the proton exchange membrane and low proton transmission efficiency of the intrinsic graphene is effectively solved.

The invention provides plastic granulation cooling equipment, and relates to the technical field of processing equipment for plastic production. Plastic granulation cooling equipment comprises a treatment box, a servo motor and a cooling box, the driving end of the servo motor penetrates through the top of the treatment box, extends into the treatment box and is fixedly connected with a transmission shaft through a telescopic rod, and the end, away from the servo motor, of the transmission shaft is fixedly connected with the cooling box; the end, away from the transmission shaft, of the cooling box is fixedly connected with a transmission rod. In the movement process of the cooling box, due to the fact that a transmission rod is fixedly connected with the bottom of the cooling box, the outer surface of the transmission rod is fixedly connected with a plurality of driving clamping plates, the driving clamping plates can drive a transmission cylinder to drive a negative pressure plate to rotate, and negative pressure generated by rotation of the negative pressure plate can drive cooling liquid to continuously wash the cooling box; the heat conduction effect is further improved, and the machining efficiency is improved.

The invention relates to the field of ionic conductors, in particular to an ionic conductor ceramic material and a preparation method thereof, and the ionic conductor ceramic material comprises Na2CO3, MgCO3, Zr02, NH4H2P04 and Si O2. The preparation method comprises the following steps: mixing the Na2CO3, the MgCO3, the Zr02, the NH4H2P04 and the SiO2 to obtain a first mixture; adding a dispersing agent into the first mixture, and carrying out first ball milling to obtain a second mixture; pre-sintering the second mixture, and carrying out a preliminary reaction to obtain a pre-sintered second mixture; carrying out secondary ball milling on the pre-sintered second mixture to obtain a second mixture subjected to secondary ball milling; and sintering the second mixture after the second ball milling to obtain the ionic conductor ceramic material. According to the prepared ionic conductor ceramic material, the conductive efficiency is improved, and meanwhile, a high-purity material can be obtained.

The invention belongs to the field of energy materials, and discloses a preparation method of a lithium metal negative electrode of a lithium metal battery and a product and application of the lithium metal negative electrode of the lithium metal battery, and the preparation method comprises the following steps: using a conductive substrate as a working electrode, using an electrode composed of a lithium-containing substance as a counter electrode, and performing electro-deposition on the working electrode in a pure solvent or a low-salt solution to obtain the lithium metal negative electrode of the lithium metal battery. The correspondingly obtained working electrode is the lithium metal negative electrode. By using a pure solvent or a low-salt solution, high-efficiency electrochemical deposition of lithium can be carried out without participation of a traditional electrolyte of high-content lithium salt, correspondingly, the metallic lithium elementary substance (or lithium alloy) deposited on the working electrode is high in density, and the performance of the lithium ion battery is improved. The obtained electrode deposited with the lithium metal can be particularly used as a negative electrode to be applied to a lithium ion battery, and has the advantages of being simple in method, low in cost, controllable, expandable, high in industrial adaptability and convenient for large-scale operation.

The invention provides a lithium-rich manganese-based positive electrode material and a preparation method thereof, a positive plate and a battery. The lithium-rich manganese-based positive electrode material comprises a lithium-rich manganese-based core material and a coating layer coating the lithium-rich manganese-based core material, the alkali metal layer of the lithium-rich manganese-based core material at least comprises Mg element, and the coating layer comprises lithium fluoride. The lithium-rich manganese-based positive electrode material disclosed by the invention has high capacity, high structural stability and excellent interface durability, and can meet the performance requirements of a high-energy-density battery under complex working conditions.

The application provides a low-temperature high-conductivity polyether electrolyte and a preparation method thereof. The polyether crosslinking network is formed by crosslinking polyethylene glycol monomethyl ether methacrylate and polyethylene glycol diacrylate, tri(pentafluorophenyl)borane and lithium salt are introduced to form a borane-lithium salt complex system, the molar ratio of lithium ions to borane is accurately controlled to be 1:0.02-0.20, and the acetonitrile complexing-vacuum desolventizing-in-situ polymerization curing process is used, so that the high-purity thin film electrolyte with the ion conductivity ≥1*10 ‑4 S / cm, residual acetonitrile ≤500 ppm and moisture ≤1000 ppm at low temperature is realized, technical problems that the low-temperature conduction capacity decreases when the crosslinking modulus of the traditional polyether electrolyte is improved, the processing window of the high-lithium salt system is narrow, and the interface stability of residual solvent and moisture is difficult to consider are effectively solved, and the low-temperature performance, processing stability and wide solid-state lithium battery application prospect are excellent.

This invention relates to the field of fabric technology, specifically to a breathable antibacterial fabric and its preparation process, and sportswear made from this fabric. The preparation process of the breathable antibacterial fabric includes: preparation of a composite antibacterial agent, preparation of multifunctional polyester fibers, amination modification of phenolic lignin, modification treatment of polyacrylonitrile, and preparation of the breathable antibacterial fabric. The breathable antibacterial fabric of this invention consists of inner, middle, and outer layers: the inner layer is a blend of modal and other materials, which is skin-friendly, moisture-wicking, and antibacterial; the middle layer is a polyurethane film layer; the outer layer contains polyacrylonitrile composite fibers, which are antibacterial, crisp, and breathable. A composite antibacterial agent made of chitosan, cysteine, and copper nitrate imparts dual antibacterial properties to the fabric, reducing bacterial resistance. Ethylene treatment enhances the bonding of components, improving wash resistance and antistatic properties; the co-spinning of amination-modified phenolic lignin and polyacrylonitrile increases fiber strength, breathability, and UV resistance. This fabric is suitable for sportswear.

The invention discloses a ternary block polybenzimidazole ion conducting membrane and a preparation method thereof, and particularly discloses a ternary block polybenzimidazole ion conducting membrane which is prepared from ternary block polybenzimidazole copolymer resin through a solution casting method, and the solution is prepared by adopting an organic solvent and adding acid or alkali to dissolve the copolymer resin. The organic solvent and the acid or the alkali are used as the mixed solvent of the copolymer resin, and the acid or the alkali contained in the mixed solvent can form a hydrogen bond cross-linked network with the copolymer resin, so that hydrogen ions or hydroxyl ions are combined with PBI in a covalent cross-linked form, and the conductivity of the copolymer film to the hydrogen ions or the hydroxyl ions is improved; and hydrogen ions or hydroxyl ions are not lost in the use process, so that the acid-resistant or alkali-resistant stability is improved.

This invention belongs to the field of loudspeakers, specifically a subwoofer with a heat dissipation duct, comprising: a magnetic circuit system, which includes a washer, a magnet, and a T-shaped iron fixedly arranged from top to bottom, wherein the T-shaped iron includes a central column and a base fixedly connected to each other; a vibration system, which includes a voice coil and a diaphragm fixedly connected to the voice coil, wherein a dust cover is fixedly provided on the surface of the diaphragm; and a frame system for accommodating and supporting the magnetic circuit system and the vibration system, which includes a frame and a shell fixedly connected to the frame; through the cooperation of the air duct assembly and the heat-conducting column, the airflow driven by the voice coil can fully exchange heat with the heat-conducting column when passing through the first air duct, and the heat generated by the voice coil can be transferred outward through a dual path of air convection and solid conduction, thereby improving the heat dissipation performance of the device for the voice coil.

The application provides a posture correcting belt and a posture correcting belt, the posture correcting belt comprises a shoulder strap and a limiting piece, the limiting piece is provided with a channel, the shoulder strap is provided with two, each shoulder strap has a first end and a second end, the first ends of the two shoulder straps are connected to each other, the second ends of the two shoulder straps are used for extending to the underarm area of the human body, and extending upwards from the chest area along the contour of the shoulder of the human body to the back area, and the second ends are movably arranged in the channel. The posture correcting belt provided by the application solves the technical problem of weak correction effect of the posture correcting belt in the prior art.