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Silicon-based negative electrode material with cage-shaped structure, preparation method of silicon-based negative electrode material, solid-state battery and power-related equipment
InactiveCN119400823AImprove contact stabilitylower impedanceMaterial nanotechnologySiliconSolid state electrolyteCarbon coating
The invention provides a silicon-based negative electrode material with a cage-shaped structure, a preparation method of the silicon-based negative electrode material, a solid-state battery and electric equipment, and relates to the field of batteries. The silicon-based negative electrode material with the cage-shaped structure comprises an inner core, a polymer coating layer and a carbon coating layer, the polymer coating layer coats the inner core, and the carbon coating layer coats the polymer coating layer; the core comprises silicon particles, the polymer coating layer comprises a polymer, the polymer comprises one or more repetitive units, the repetitive units comprise siloxane units, and the repetitive units are crosslinked to form a cage-shaped structure. According to the silicon-based negative electrode material with the cage-shaped structure provided by the invention, by constructing the cage-shaped structure coating the surfaces of the silicon particles, structural damage caused by silicon volume change can be effectively inhibited, the contact stability between an electrode and a solid electrolyte is enhanced, and the interface impedance is reduced, so that the cycle performance and the energy density of a solid-state battery are remarkably improved.
Owner:四川新能源汽车创新中心有限公司
Packaging material of low-precipitation ultrahigh-barrier film for injection and preparation process of packaging material
PendingCN119458981Agood mechanical supportImprove antibacterial propertiesFlat articlesPolymer sciencePolyvinyl alcohol
The invention belongs to the technical field of packaging materials, and particularly relates to a packaging material of a low-precipitation ultrahigh-barrier film for an injection and a preparation process of the packaging material. The packaging material comprises a two-layer structure including an antibacterial polyvinyl chloride (PVC) layer and a polyvinyl alcohol (PVA) modified coating layer. The packaging material of the low-precipitation ultrahigh-barrier film for the injection is light in weight, high in strength, high in water and oxygen barrier property and good in chemical stability, has certain mechanical property, is simple in preparation process, adopts safe and non-toxic raw materials, meets the requirements of commercial low-precipitation ultrahigh-barrier film packaging materials, and can be in direct contact with the injection.
Owner:ZIBO HUA ZHI LIN PACKING PROD CO LTD
Preparation method of integrated crucible preform based on multilayer structure
The invention relates to a preparation method of an integrated crucible preform based on a multilayer structure, and belongs to the technical field of thermal field parts for monocrystalline silicon. Laying a carbon fiber net tire on the core mold and needling to form a net tire needling laying layer; a carbon cloth layer is laid on the net tire needling laying layer, then a carbon fiber net tire layer is laid, needling sewing is conducted, and a carbon cloth / net tire laminated needling laying layer is formed; winding carbon fiber yarns on the carbon cloth / net tire laminated needling laying layer to form a carbon fiber winding layer; the carbon cloth / net tire laminated needling paving layer and the carbon fiber winding layer form a paving layer unit, and after a plurality of paving layer units are overlaid on the net tire needling paving layer, heating is performed to achieve a hardening effect, so that preparation of the preform is completed. The preform prepared on the basis of the method not only meets the overall mechanical property requirement of the crucible, but also can improve the combination effect with a subsequent functional coating, so that the service life of the crucible can be effectively prolonged.
Owner:XIAN CHAOMA SCI TECH
Integrated carbon / carbon composite material crucible prepared based on multi-layer structure prefabricated body
PendingCN119571442AImprove temperature resistanceImprove stabilityPolycrystalline material growthFireproof paintsCarbon compositesFiber
The invention relates to an integrated carbon / carbon composite material crucible prepared based on a multilayer structure prefabricated body, and belongs to the technical field of thermal field parts for monocrystalline silicon. The crucible comprises a carbon / carbon composite material crucible body, a glassy carbon coating and an yttrium oxide coating, the glassy carbon coating can effectively relieve thermal mismatch between the yttrium oxide coating and the carbon / carbon composite material crucible body, and carbon in the carbon / carbon composite material crucible body can be effectively prevented from escaping; impurities are not introduced into the yttrium oxide coating in the silicon melting process, so that the purity of a silicon material can be effectively ensured, and the yttrium oxide coating has excellent silicon erosion resistance and thermal stability; the carbon / carbon composite material crucible body is formed by compacting a multi-layer structure prefabricated body, the multi-layer structure prefabricated body adopts an isotropic net tire as an inner layer, the good combination effect with a subsequent functional coating can be ensured, a carbon cloth / net tire lamination needling laying layer is combined with a carbon fiber winding layer as an outer layer, and the overall mechanical property of the crucible can be ensured.
Owner:XIAN CHAOMA SCI TECH
Foldable barrier-free bath chair
ActiveCN222516728UImprove practicalitySolve the inconvenience of storageBathsDouchesMechanical engineeringPhysics
Owner:RUIAN YONGJIULIANG FREE-OBSTACLE FACILITIES CO LTD
Sensing optical cable and manufacturing process thereof
PendingCN119575574Aavoid damagegood mechanical supportMeasurement devicesFibre mechanical structuresEngineeringHigh strain
The invention relates to the technical field of optical fiber sensing monitoring, in particular to a sensing optical cable and a manufacturing process thereof. The sensing optical cable comprises a first sensing optical fiber, a second sensing optical fiber, two reinforcing layers and a protective layer. Wherein the second sensing optical fiber and the first sensing optical fiber are arranged at an interval; the two reinforcing layers wrap the first sensing optical fiber and the second sensing optical fiber in a one-to-one correspondence manner, the first sensing optical fiber is in transition fit with the corresponding reinforcing layer, and the second sensing optical fiber is in clearance fit with the corresponding reinforcing layer; and the protective layer is coated outside the two reinforcing layers. According to the sensing optical cable, the defect that the sensing optical cable in the prior art is poor in strain resistance and temperature change resistance is overcome, the sensing optical cable with the high strain resistance and temperature change resistance is achieved, and therefore the performance of the sensing optical cable is greatly improved.
Owner:CNOOC GAS & POWER GRP
Bone tissue engineering scaffold
ActiveCN109938896Bpromote new lifePromote ingrowthStentsOsseous DifferentiationOsteoclastic differentiation
The present invention discloses a bone tissue engineering scaffold, including a hollow grid-shaped scaffold and a porous zinc-based metal ball filled therein, the porous zinc-based metal ball can be a solid ball with holes and grooves on the surface or a fluffy ball rolled by metal wire; an internal support column can also be arranged in the scaffold to provide more mechanical properties; β-TCP particles can be filled to enrich bone marrow mesenchymal stem cells. The present invention combines a grid scaffold prepared by titanium or zinc-based metal and its internal support column to prepare a bone tissue engineering scaffold with excellent mechanical properties, wherein the porous zinc-based metal ball can promote osteogenic differentiation and inhibit osteoclast differentiation, while providing support, promote the regeneration and ingrowth of bone tissue, and then gradually be replaced by bone tissue during the degradation process, and β-TCP particles can enrich mesenchymal stem cells and promote bone repair. The present invention can be applied to large bone defects in load-bearing parts, promote bone tissue regeneration on the basis of mechanical support, and achieve the therapeutic effect of repairing large bone defects.
Owner:SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
Degradable metal stent with medicine storage cavity and manufacturing method thereof
PendingCN121754350ATreatment is easy to implementSolve problems that are difficult to treatStentsBlood vessel occlusionPharmaceutical drug
The invention discloses a degradable metal stent with a medicine storage cavity and a manufacturing method of the degradable metal stent, and relates to the technical field of medical instrument manufacturing. The inner-layer bracket and the outer-layer bracket are of hollow structures; the non-hollow parts of the inner-layer stent and the outer-layer stent are consistent in shape and are aligned and attached to each other; medicine storage grooves are distributed in a non-hollow part of the inner-layer bracket; the inner-layer stent and the outer-layer stent are both degradable metal stents. According to the invention, the drug coating on the outer layer of the stent releases the drug for early treatment, and the degradation speed of the outer-layer stent is higher than that of the inner-layer stent, so that the outer-layer stent can be degraded and disappear before the inner-layer stent, the drug storage groove on the inner-layer stent is exposed, and the drug is released again for treatment; therefore, long-time-span drug treatment can be conveniently achieved, and the problem that treatment is not convenient when plaques become large or blood vessels are blocked in the later period of the blood vessels is effectively solved.
Owner:XUANYU MEDICAL PRODUCTS (SHANGHAI) CO LTD +1
Functionalized polystyrene infrared stealth film material and preparation method thereof
ActiveCN119144033BImprove stealth performanceImprove mechanical propertiesCoatingsTetramethylammonium hydroxideFunctionalized polystyrene
The invention discloses an infrared stealth film material of functionalized polystyrene and a preparation method thereof, and belongs to the technical field of functional material preparation. The infrared stealth film material of functionalized polystyrene is composed of the following components in parts by weight: 53-67 parts of a base film material, 8-12 parts of modified polystyrene, and 0.8-1.3 parts of an adhesive, wherein the base film material is prepared from meta-iodoaniline, trimethylsilyl acetylene, diisopropyl xanthate disulfide, tetramethylammonium hydroxide, polyvinylidene fluoride, and polymethyl methacrylate, and the modified polystyrene is prepared from syringaldehyde, n-butyl bromide, 2,2'-dipyrrolyl methane, 2-thiophene boric acid, and polystyrene cross-linked microspheres. The infrared stealth film material of functionalized polystyrene prepared by the method has excellent stealth performance and mechanical properties.
Owner:HUANGSHAN TIANZHIDU ENVIRONMENTAL SCI & TECH DEV CO LTD
A sealing ring glue melt high pressure filtering device
This invention provides a high-pressure filtration device for sealing ring rubber melt, comprising: a machine base; a conveying assembly disposed on the machine base, the conveying assembly including a conveying pipe for conveying the rubber melt; and a filtering assembly including a filter plate inserted on the conveying pipe, the filter plate being provided with at least two sets of filter screens for filtering impurities. This invention, through the cooperation of a first driving assembly and two sets of filter screens, achieves parallel operation of working and cleaning, avoiding the inefficiency of traditional equipment requiring machine shutdown for filter screen replacement. It introduces a specialized bushing assembly, solving the problem of difficulty in maintaining high-pressure sealing after switching in transverse sliding filter plates. Through active compression sealing, it can withstand higher levels of conveying pressure without leakage. The entire filtration, switching, sealing, and cleaning process forms a closed loop, greatly improving the automation level of sealing ring rubber pretreatment.
Owner:JINJIANG BAISHU RUBBER PRODUCTS CO LTD
Binder-free transition metal sulfide composite nitrogen-doped graphene negative electrode material and preparation method thereof
PendingCN122091518Aimprove performanceLarge specific surface areaCell electrodesDoped grapheneElectrical battery
The invention discloses a binder-free transition metal sulfide composite nitrogen-doped graphene negative electrode material and a preparation method thereof, and belongs to the technical field of secondary battery negative electrode materials. According to the technical scheme, the preparation method comprises the following steps: 1) dissolving zinc nitrate, cobalt nitrate and nitrogen-doped graphene in a mixed solution of ethanol and water, uniformly mixing, adding ammonium fluoride and urea, and continuously stirring; 2) adding foamed nickel and the uniformly mixed solution into a high-pressure reaction kettle for hydrothermal treatment, cooling, washing and drying to obtain a Zn-Co-precursor; (3) calcining the Zn-Co-precursor in an inert atmosphere, and (4) adding the Zn-Co-precursor into a high-pressure reaction kettle containing a sulfur source for hydrothermal vulcanization treatment, washing and drying to obtain the ZnCo2S4-coated NGr / NF negative electrode material.The graphene negative electrode material can improve the overall performance and stability of a secondary battery.
Owner:ZIBO TORCH ENERGY
Integrated carbon / carbon composite material crucible containing three layers of composite coatings
PendingCN119613153Apromote sheddingImprove temperature resistancePolycrystalline material growthBy pulling from meltCarbon compositesThermal dilatation
The invention relates to an integrated carbon / carbon composite material crucible containing three layers of composite coatings, and belongs to the technical field of thermal field parts for monocrystalline silicon. The crucible comprises a carbon / carbon composite material crucible body, a glassy carbon coating, a pyrolytic carbon transition coating and an yttrium oxide coating, wherein the glassy carbon coating not only has a good combination effect with the carbon / carbon composite material crucible body, but also can prevent carbon from escaping; the thermal expansion coefficient of the pyrolytic carbon transition coating is close to that of the glassy carbon coating, and the combination effect of the pyrolytic carbon transition coating and the yttrium oxide coating is good; the yttrium oxide coating has excellent thermal stability and silicon erosion resistance, and can ensure the purity of molten silicon in the single crystal drawing process; the carbon / carbon composite material crucible body is formed by densifying a multi-layer structure prefabricated body, the inner layer of the multi-layer structure prefabricated body is an isotropic net tire layer which can ensure a good combination effect with a subsequent functional coating, and the outer layer of the multi-layer structure prefabricated body is a carbon cloth / net tire lamination needling laying layer combined carbon fiber winding layer which can ensure the overall mechanical property of the crucible.
Owner:XIAN CHAOMA SCI TECH
3D printing porous special-shaped high-entropy alloy component
PendingCN119609161Alow densityeasy to spreadAdditive manufacturing apparatusIncreasing energy efficiency3d printHigh entropy alloys
The invention relates to the field of high-entropy alloys, in particular to a 3D printing porous special-shaped high-entropy alloy component which comprises, by weight, 35%-55% of high-entropy alloy and 43%-65% of hydroxyl calcium phosphate. The 3D printing porous special-shaped high-entropy alloy component has the following beneficial effects that the high-entropy alloy has high hardness, good fatigue resistance and excellent corrosion resistance, and the high-entropy alloy is high in mechanical strength, high in mechanical strength and high in mechanical strength; after being combined with hydroxyapatite, the composite biological material can provide better mechanical support while keeping biocompatibility, is suitable for repairing hard tissues with large bearing capacity, and ensures good and uniform interface combination between hydroxyapatite and the high-entropy alloy by realizing the pore structure of the composite material; therefore, damage to human bodies caused by factors such as cracks and phase separation is avoided.
Owner:安徽恒利增材制造科技有限公司
Reusable filter system and framework, method of assembly and transport thereof, and use thereof
ActiveCN116367907Beasy to replaceEasy to fixDispersed particle filtrationMembrane filtersFilter systemMechanical engineering
In some embodiments, a reusable filter system for interchangeable pleated filters is provided, the reusable filter system comprising: (a) a reusable frame including a first retainer, a second retainer, a third retainer, and a fourth retainer; (b) at least one flexible sheet configured to be attached to at least a portion of an upper pleat top face and / or a lower pleat top face and extending outwardly from a first pleat edge and a second pleat edge; and (c) at least one plug, wherein the first retainer, the second retainer, the third retainer, and the fourth retainer are configured to reversibly connect to each other to form the reusable frame, and wherein each of the first retainer, the second retainer, the third retainer, and the fourth retainer further includes a plug receiving portion sized and shaped to receive the plug. Other exemplary embodiments are described herein. In some embodiments, the reusable filter system is user-friendly and environmentally friendly, and reduces transportation costs.
Owner:王洁芳
Irradiated cross-linked collagen injectable filler and methods of making and using the same
ActiveCN121623000BImprove mechanical propertiesReduce the degradation ratePharmaceutical delivery mechanismProsthesisLinking collagenCell adhesion
The present application provides a kind of irradiation crosslinking collagen injection filling agent and its preparation method and purposes.The collagen injection filling agent includes collagen gel microparticle, the collagen gel microparticle has porous structure;The collagen gel microparticle has connected fiber structure, the fiber structure is formed by collagen self-assembly, and the fiber structure includes fiber bundle and / or fiber mesh lamellar structure;The collagen gel microparticle in the collagen injection filling agent of the present application has the fiber structure formed after collagen self-assembly, i.e. collagen is spontaneously assembled from collagen molecule to fiber bundle and fiber mesh lamellar structure, and the degradation rate is delayed.The fiber network structure of the present application has good mechanical support and slow degradation rate, and simulates the three-dimensional microenvironment of natural extracellular matrix (ECM), promotes cell adhesion proliferation and tissue regeneration.The fiber structure of the present application is beneficial to the crawling proliferation of cells, and promotes the regeneration and repair of skin cells.
Owner:BEIJING BIOSIS HEALING BIOLOGICAL TECH CO LTD
Lead assembly, connector, and electronic system
ActiveCN224418145UEfficient signal transmissionReduce electromagnetic interferenceElectronic systemsElectromagnetic interference
Embodiments of the present application provide a lead assembly, a connector and an electronic system, the lead assembly comprising a first terminal module and a conductive shell, each first terminal module comprising at least one first signal conductive element and an insulating sheath, the insulating sheath covering the outer side of part of the structure of the first signal conductive element; the conductive shell integrally defining a plurality of first chambers separated from each other, the plurality of first terminal modules and the plurality of first chambers corresponding one by one, each first terminal module being arranged in the corresponding first chamber. According to the technology of the present application, through the combination of the conductive shell and the plurality of first terminal modules, the first terminal module can effectively realize efficient signal transmission and reliable electrical connection, effectively isolate each first terminal module, which is conducive to reducing the electromagnetic interference between adjacent first terminal modules, reducing the signal loss of the first terminal module in the connector, so as to ensure that the first terminal module can realize efficient signal transmission.
Owner:AMPHENOL COMML PROD (CHENGDU) CO LTD
New energy wind power plant circuit stability control device
ActiveCN224134766UGuaranteed uptimeImprove structural strengthWind motor controlMachines/enginesInterference (communication)Interference resistance
The utility model relates to the technical field of wind power generation, and provides a new energy wind power plant circuit stability control device which comprises a control box, a locking structure and a base, a power module, a control panel, a main chip, a communication module and a serial port are fixed in the control box, the control panel is located on one side of the power module, and the main chip is arranged in the center area of the control panel. The communication module and the serial port are arranged on the side, away from the power module, of the control panel, and a circuit module is arranged outside the control box and located on the side, away from the control panel, of the communication module and the serial port; the locking structure comprises a locking seat and a locking frame, the locking seat is arranged in the peripheral area of the bottom of the control box, the locking frame is arranged in the peripheral area of the top of the control box, and the locking frame is fixedly connected with the locking seat through a fastening structure; the base is arranged at the bottom of the control box and the locking structure and used for supporting the control box and the locking structure. Through the arrangement, the anti-interference capability of the device is enhanced, the interference in the signal transmission process is reduced, and the stable operation of the circuit is ensured.
Owner:SHEQI GUOHE WIND POWER CO LTD +2
Negative electrode material, secondary battery, and electric device
PendingCN119419236Agood mechanical supportImprove stabilityCell electrodesSecondary cellsElectrical batteryBattery cell
The invention discloses a negative electrode material, a secondary battery and a power utilization device, and belongs to the technical field of batteries, the negative electrode material comprises an inner core, a SiOx layer arranged on the surface of the inner core and a metal oxide layer arranged on the surface of the SiOx layer; the inner core comprises silicon powder; the negative electrode material meets the following conditions: (10b + c-1) / (lna) is more than or equal to 1.75 and less than or equal to 3; wherein a nm is the average particle size of the silicon powder; b is the Poisson ratio of the SiOx layer; and c nm is the thickness of the metal oxide layer. The volume expansion effect of the negative electrode material is effectively relieved, and the cycling stability of the secondary battery is improved.
Owner:SUNWODA MOBILITY ENERGY TECHNOLOGY CO LTD
Conductive fabric and preparation method and application thereof
PendingCN121964390AImprove conductivitygood mechanical supportHybrid capacitor electrodesHybrid/EDL manufacturePolymer scienceNickel salt
The invention belongs to the technical field of conductive fabrics, and particularly relates to a conductive fabric and a preparation method and application thereof. The preparation method of the conductive fabric comprises the following steps: adding a metal salt into an MXene dispersion liquid to obtain a mixed solution I, immersing a base material into the mixed solution I, and repeatedly pulling to load MXene on the surface of the base material to obtain an MXene-loaded base material; and mixing nickel salt, an organic ligand and a solvent to obtain a mixed solution II, contacting the MXene-loaded base material with the surface of the mixed solution II, then dropwise adding ammonia water into the mixed solution II, carrying out a heating reaction, and drying to obtain the conductive fabric. The prepared conductive fabric is in a sandwich-like form of a PMIA layer, an MXene layer and an MOF layer, a conductive material is not added into the fabric, intrinsic characteristics of the electrostatic textile fabric cannot be damaged, and the problem that in the prior art, mechanical flexibility of the fabric is insufficient is solved on the premise that excellent conductivity is guaranteed.
Owner:HEBEI UNIV OF TECH