65893 results about "Electrically conductive" patented technology

This invention discloses a fluorene-based organic small molecule hole transport material and its applications. The general structural formula of the fluorene-based organic small molecule hole transport material is as follows: where n = 1-4, and R represents the hole transport capacity. This fluorene-based organic small molecule hole transport material is used as an undoped hole transport material in perovskite solar cell devices. By introducing dicarboxylic acid groups onto the fluorene-based organic small molecule hole transport material, when used in an inverted perovskite solar cell device, it can form chemical bonds with the hydroxyl groups of the glass conductive substrate, forming a directionally aligned self-assembled layer on the surface of the glass conductive substrate. This effectively improves the charge transport capability at the interface and increases the photoelectric conversion efficiency of the perovskite solar cell device. Furthermore, since this perovskite solar cell device does not contain lithium salts, it exhibits high water and oxygen stability. In addition, the synthesis process of this fluorene-based organic small molecule hole transport material is simple, and the raw materials are inexpensive and readily available, making it highly valuable for practical applications.

The invention belongs to the technical field of aerogel materials, and particularly relates to high-performance antistatic aerogel for 3D printing as well as a preparation method and application thereof. According to the invention, inorganic hollow nanoparticles are selected as a nucleating modifier for in-situ polymerization of aniline monomers in a polyamide solution, so that polyaniline-coated inorganic hollow nanoparticles are uniformly dispersed in polyamide, and the aerogel composite material with polyamide as a continuous phase and polyaniline-coated inorganic hollow nanoparticles as a conductive and reinforced phase is formed. The use of the hollow inorganic nanoparticles avoids the problem that the solid inorganic nanoparticles lose the characteristics of the inorganic nanoparticles due to high specific gravity and high surface energy, and easy agglomeration or adsorption with other substances in the preparation process of the solid inorganic nanoparticles. The inorganic hollow nanoparticles are adopted as a nucleating modifier, so that the problems of agglomeration of solid nanoparticles and dispersion in a polyamide matrix are well solved.

The invention provides a permanent magnet motor and a scroll inverter compressor, and relates to the technical field of scroll compressor design and manufacturing, and the permanent magnet motor comprises a stator iron core and a rotor iron core; the stator core comprises stator teeth and a stator yoke which are uniformly distributed along the circumference, fluid through grooves are formed in the outer side of the stator yoke at the tops of the stator teeth, stator grooves are formed in two adjacent stator teeth and the stator yoke between the two stator teeth, and a plurality of strands of conductive circular enameled wires are embedded in each stator groove; the outer side of the rotor core is composed of linear segments and arcs, air grooves which are evenly distributed are formed in the rotor core, non-uniform magnetic isolation bridges are formed between the air grooves and the linear segments on the outer side of the rotor core, a certain distance is formed between every two adjacent air grooves, parallel magnetic conductive ribs are formed, and permanent magnets with the magnetic field directions changing alternately are embedded in the air grooves. A rivet hole, a lightening hole and a shaft hole are arranged close to the inner side of the rotor core. Therefore, the defined proportionality coefficient Ks is kept in a reasonable range, the power density of the motor can be increased, the cost is reduced, and the efficiency is improved.

The invention belongs to the technical field of polymer preparation, and particularly relates to a curved-surface polyaniline modified 3D printing polyurethane material and application thereof. According to the preparation method, an ice crystal hard template method and a polyether glycol soft template method are combined, so that the microstructure of polyaniline is adjusted, and the curved polyaniline with regular morphology is prepared. The curved-surface arc-shaped structure has a large specific surface area, can form more contact sites with resin when being directly melt-blended with the resin, is beneficial to construction of a conductive path, and is not easy to agglomerate due to the curved-surface structure. The polyaniline with the arc-shaped structure is of a three-dimensional space structure and is directly blended with the resin to form a randomly arranged conductive network structure, so that the composite material is not easy to break when being impacted, and can be better embedded between the resin to form a stress transfer channel, and a complex three-dimensional network structure is constructed; the mechanical property and the antistatic capability of the product are improved.

The invention provides a solar cell and a preparation method thereof, and a photovoltaic module, the rear surface of a semiconductor substrate is provided with a first region and a second region which are adjacent to each other, and the first region is provided with a first sub-region and first overlapping regions located at the two sides of the first sub-region; the first overlapping area is provided with a tunneling layer, a first doped conductive layer, a passivation layer, a second doped conductive layer and a first transparent conductive layer, the length of the first overlapping area in the first direction is D1, and the first direction is parallel to the surface where the semiconductor substrate is located; the rear surface of the semiconductor substrate is also provided with a third region and a fourth region which are adjacently arranged, and the third region is provided with a third sub-region and third overlapping regions located at the two sides of the third sub-region; the third overlapping region is provided with a tunneling layer, a first doped conductive layer, a passivation layer, a second doped conductive layer and a first transparent conductive layer, the length of the third overlapping region in the first direction is D2, and D1 is different from D2.

A job-site tool in one aspect of the present disclosure includes: a display; a flexible printed circuit; and a control circuit. The display is visible tool from outside and includes at least one surface light emitter. The flexible printed circuit includes conductive traces. The at least one surface light emitter is on the flexible printed circuit and is electrically connected to the conductive traces. The control circuit is electrically connected to the display via the conductive traces.

The invention relates to a micro-display device based on multilayer stacking and a preparation method thereof, the micro-display device comprises a driving backboard and a plurality of pixel layers, and the driving backboard is provided with a first type of electrode contacts; the multiple pixel layers are sequentially stacked in the Z direction, sub-pixels are arranged in each pixel layer, the bottom end of each sub-pixel is electrically connected to the corresponding first type of electrode contact, and the top end of each sub-pixel is electrically connected to the corresponding first conductive layer; in two adjacent pixel layers in the multiple pixel layers, the first conductive layer of one sub-pixel in the upper pixel layer is in direct contact with the first conductive layer of one sub-pixel in the lower adjacent pixel layer. The invention also discloses a preparation method of the micro display device. According to the invention, the processing technology and the cathode interconnection structure are simplified; and meanwhile, the current conduction capability is enhanced, the power consumption of the device is reduced, and the reliability and stability of the display device are improved.

The invention relates to an electronics module (102) for a ventricular assist device, wherein the ventricular assist device has a motor housing for accommodating a pump motor. The electronics module (102) comprises an electronics section (204) for accommodating at least one electronic component (206) and / or at least one electrically conductive contacting element (208), and a coupling section (202) designed as a joint between the motor housing (104) and the electronics section (204) or as a separate component to be joined, wherein the motor housing (104) and the electronics section (204) are combined or can be combined via the coupling section (202) with one another to form a fluid-tight module housing (104) to be arranged in a blood vessel.

The utility model relates to the technical field of curtain machines, and discloses a conductive structure of a curtain machine, the curtain machine comprises a curtain guide rail, the conductive structure comprises a conductive strip and a moving body, and the conductive strip is arranged along the length direction of the curtain guide rail; the moving body is movably arranged in the length direction of the curtain guide rail, a conductive contact piece is arranged on the moving body, and the conductive contact piece is configured to abut against the conductive strip under the action of elastic force. In the conductive structure, the conductive contact member always abuts against the conductive strip under the action of the elastic force, and reliable contact and stable conduction between the conductive contact member and the conductive strip can be ensured no matter the conductive strip is uneven, the gap of the assembly structure is large, and the conductive strip is affected by external vibration.

The invention provides an intelligent eddy current nondestructive testing method and system based on a flexible GMR sensor array, and relates to the technical field of nondestructive testing. According to the invention, a GMR sensor array and a micro excitation coil array are integrated on a flexible substrate, and synchronous acquisition under multi-frequency and multi-phase excitation is realized by establishing a probe-workpiece unified space coordinate system and a time synchronization reference; performing temperature drift compensation, attitude correction and gap normalization processing on the original response tensor to generate a corrected response tensor; the intelligent inversion model based on the prior constraint of the electromagnetic field jointly identifies the conductivity, the thickness and the crack parameters, and outputs a defect parameter map and a confidence map; and a detection report containing the position, the size, the depth and the confidence coefficient is generated through spatial clustering and connectivity analysis, so that high-sensitivity and high-reliability nondestructive detection under a complex curved surface structure is realized.

The invention relates to the technical field of fusion reaction devices, and discloses a flexible electrical connection structure and a fusion reaction device, and the flexible electrical connection structure comprises a first installation assembly, a second installation assembly and a connection assembly. The first installation assembly comprises an installation base, a supporting piece and an adjusting base, the supporting piece is connected with the installation base and can move in the first direction relative to the installation base, the adjusting base is connected with the supporting piece and can move in the second direction relative to the supporting piece, and the second direction is perpendicular to the first direction. One end of the connecting assembly is connected with the adjusting seat, the other end of the connecting assembly is separably connected with the second mounting assembly, and the first mounting assembly, the connecting assembly and the second mounting assembly can form a conductive path. Therefore, the position of the connecting assembly can be adjusted through movement of the supporting piece and the adjusting seat. In the installing process or the working process, the position of the connecting assembly can be adjusted in a self-adaptive mode, the overall installing efficiency of the fusion reaction device is improved, and the connecting stability of the connecting assembly and the second installing assembly in the working process is improved.

The invention relates to an LED display device based on vertical stacking and a preparation method thereof, the display device comprises a driving backboard and a mother pixel, the mother pixel comprises a plurality of sub-pixels, one of a first type of electrode contact and a second type of electrode contact on the driving backboard is a common-pole contact, and the other one is a non-common-pole contact; the electric connectors comprise common-pole conductive parts and non-common-pole conductive parts, the non-common-pole conductive parts are configured to be electrically connected to the first ends of the corresponding sub-pixels and electrically connected with the corresponding non-common-pole contacts, and the common-pole conductive parts are configured to be electrically connected to the second ends of the sub-pixels and electrically connected with the common-pole contacts to form a common-pole structure; each of the copolar conductive part and the non-copolar conductive part comprises an interconnection conductive part, the interconnection conductive parts are located in the corresponding pixel layers, at least one interconnection conductive part comprises a core body, the core body is a compound semiconductor, and the core body is located in the first inner fence. The invention further discloses a preparation method. The production efficiency and quality of the LED display device can be improved.

The invention discloses a modified graphite felt electrode for an all-vanadium redox flow battery and a preparation method of the modified graphite felt electrode, and belongs to the technical field of redox flow battery electrode materials. The preparation method comprises the following steps: graphite felt electrochemical oxidation etching treatment; self-assembling a conductive layer on the oxidized and etched graphite felt to obtain the graphite felt attached with the conductive layer; and loading a metal and nitrogen-doped carbon (M and NC) nano catalyst layer on the graphite felt attached with the conductive layer to obtain the modified graphite felt electrode. Various properties of the graphite felt are comprehensively improved through matrix treatment, structure change and load catalysis, mild electrochemical oxidation etching is adopted, a carbon fiber structure is protected, a self-assembled net-shaped conductive layer forms a stable conductive channel, the specific surface area is remarkably increased, a nitrogen-doped carbon shell is adopted to wrap metal nanodots to form an M-NC catalytic layer, and the specific surface area is remarkably increased. The catalyst layer is not easy to dissolve out, the capacity fading rate is obviously improved, the loading capacity of the catalyst layer on the reticular structure conducting layer with a larger specific surface area is larger, and meanwhile, the process is simple and low in cost.

The invention relates to a glass support plate, a preparation method thereof and a packaging structure. The glass carrier plate is used for connecting a chip and a circuit board, the glass carrier plate comprises a substrate, the substrate comprises a through hole penetrating through the substrate along a first direction, the through hole comprises a first sub-through-hole part and a second sub-through-hole part at least located at two ends of the through hole, and a third sub-through-hole part located between the first sub-through-hole part and the second sub-through-hole part, the first direction is perpendicular to the plane where the substrate is located; the middle conductive part is filled in the third sub through hole part; the first seed layer at least partially covers the side wall of the first sub through hole part; the second seed layer at least partially covers the side wall of the second sub through hole part; the first conductive part is filled in the first sub through hole part, and at least part of the first seed layer is located between the side wall of the first sub through hole part and the first conductive part; and the second conductive part is filled in the second sub through hole part, and the second seed layer is at least partially located between the side wall of the second sub through hole part and the second conductive part. The conductive performance and the reliability can be improved at the same time.

Provided is a back-contact solar cell. The back-contact solar cell includes: a substrate having first doped regions, second doped regions and gap regions arranged on the substrate; first doped semiconductor layers located on the corresponding first doped regions; second doped semiconductor layers located on the corresponding second doped regions, a conductive type of a second doping element within the second doped semiconductor layer is different from that of a first doping element within the first doped semiconductor layer; a conductive layer located on part of the gap region; a passivation layer covering the first doped semiconductor layers, the second doped semiconductor layers, the conductive layers and the gap regions; first electrodes in electrical contact with the first doped semiconductor layers; and second electrodes, in electrical contact with the second doped semiconductor layers.

The invention discloses a high-bonding-strength flame-retardant composite current collector base film and a preparation method thereof. The high-bonding-strength flame-retardant composite current collector base film is prepared from the following raw materials in parts by weight: 100 parts of PP resin, 1.5 parts of a lubricant, 0.8 part of an antioxidant and 16 parts of reinforced flame-retardant composite particles, the reinforced flame-retardant composite particles are prepared by the following steps: S1, preparing amidated porous carbon microspheres; s2, compounding the amidated porous carbon microspheres with mica powder to prepare a composite carrier; s3, loading a flame retardant to prepare a flame-retardant compound; s4, in-situ grafting of maleic anhydride grafted polypropylene is carried out, and the reinforced flame-retardant composite particles are obtained. By adding the reinforced flame-retardant composite particles into the PP resin, the flame retardance and mechanical strength of the PP-based composite current collector base film and the interface bonding force between the PP base film and the metal conductive layer can be comprehensively improved.

The invention provides a tumor electric field treatment system, an electrode slice temperature detection method and an electrode slice anomaly detection method, the system comprises an electrode slice and an adapter provided with a first controller, the electrode slice comprises a plurality of electrode units and a plurality of temperature detection units, the plurality of temperature detection units are divided into a plurality of row groups and a plurality of column groups, and the first controller is connected with the adapter. The grounding ends of the temperature detection units in each row group are jointly connected to the same grounding wire, and the signal ends of the temperature detection units in each column group are connected to the same dual-purpose signal wire after being in short circuit with the corresponding electrode units; when the dual-purpose signal line is connected to the temperature sampling point, the grounding wires are sequentially conducted, so that temperature detection signals detected by the temperature detection units are sampled based on the temperature sampling point; when the dual-purpose signal line is connected to the alternating power line, alternating electric signals are transmitted to the electrode units. Therefore, the temperature of the electrode plate can be detected by using fewer conductive traces, and whether the electrode plate is abnormal or not can be judged through temperature detection.

The invention discloses a superconducting magnet quench detection early warning system and method based on skeleton current, and relates to the field of superconducting magnet quench detection, and the method comprises the steps: constructing an electrothermal coupling finite element model of a superconducting magnet and a conductive skeleton; simulating different quench events based on the electrothermal coupling finite element model; according to different quench events, quench judgment threshold values and different levels of quench severity index grading threshold values are determined; when the superconducting magnet is out of service, acquiring a skeleton current signal that the current of the superconducting magnet is shunted to the conductive skeleton; based on the skeleton current signal, according to the quench judgment threshold value and the quench severity index grading threshold value, grading early warning and protection response are conducted on the superconducting magnet quench, nondestructive testing can be conducted on the superconducting magnet quench, grading evaluation and optimization protection of the quench severity degree are achieved, and the safety of the superconducting magnet quench is improved. And the cost of the quench monitoring system is reduced.

A patch panel comprises an exposed raised area or bump behind each patch panel opening that maintains electrical conductivity between the patch panel frame and a housing of a jack while the jack is installed in the opening. During the manufacturing process, this grounding bump can be masked from paint or powder coating so that the bare metal of the bump remains exposed, yielding a raised surface that readily makes conducive contact with the conductive casing of a jack installed in the patch panel opening without the need for an intermediate component that would normally be required to bridge the gap caused by paint or powder coat thickness.

The invention provides an active and passive integrated protection intelligent fuse with a single excitation source. The active and passive integrated protection intelligent fuse comprises a first conducting bar, a signal melt, a second conducting bar, a circuit board and an excitation source, the circuit board is provided with the relay and the excitation source. The relay is connected with an external control unit, the excitation source, the first conducting bar and the second conducting bar. The first conducting bar, the signal melt and the second conducting bar are connected in sequence; an isolating layer is arranged on the relay, and the isolating layer is used for shielding crosstalk of external voltage on the relay; after a plurality of pins of the relay are welded on the circuit board, an insulation processing mode is adopted among the plurality of pins; and in an inspection working condition, the external control unit outputs a first inspection signal to the relay so as to control the relay to be switched into an inspection state, and feeds back the working state of the excitation source to the external control unit.

The invention discloses copper-containing slurry suitable for high-temperature sintering and a preparation method thereof, and the copper-containing slurry comprises the following components in percentage by mass: 10-80% of copper powder, 0-80% of silver powder, 0.2-1% of low-softening-point glass powder, 0-3% of high-softening-point glass, 15-20% of an organic carrier and 0.5-3% of an organic auxiliary agent, the low-softening-point glass powder is of a Pb-Te-Li system, the softening temperature ranges from 250 DEG C to 350 DEG C, and the softening temperature is lower than the decomposition temperature of the organic coating agent on the surface of the copper powder. The preparation method comprises the following steps: adding the components according to the ratio, stirring until the components are uniformly dispersed, grinding and sieving to obtain the copper-containing slurry suitable for high-temperature sintering. According to the prepared copper-containing slurry, the low-softening-point glass powder is adopted as a key component, a liquid-phase protection layer is formed in the high-temperature sintering process, oxidation and diffusion of copper are effectively inhibited, and the oxidation resistance and the conductive stability of the copper-containing slurry are improved. Meanwhile, the slurry has good flowability and printing performance, and can meet the requirements of the photovoltaic industry for efficient and low-cost conductive materials.

The preparation method comprises the following steps: S1, mixing a hydrochloric acid solution with organic sodium sulfonate, then adding aniline and water, stirring and dissolving, then adding an oxidizing agent to carry out doping reaction, and carrying out suction filtration, washing, drying and grinding on a reaction product to obtain sodium-modified polyaniline; s2, uniformly mixing a negative electrode active material, a conductive agent and polytetrafluoroethylene, and then adding sodium polyaniline and an organic sodium supplement agent in a nitrogen or inert atmosphere for fibration treatment to obtain fibration powder; and S3, performing hot pressing on the fiberized powder onto the current collector to obtain the lithium ion battery. The prepared pre-sodium-modified negative electrode dry-method electrode has relatively good peeling strength and pole piece flexibility, and the condition that a traditional wet-method thick electrode is easy to crack is relieved; meanwhile, the dry-method electrode subjected to sodium modification treatment can induce uniform deposition of sodium ions, so that the dynamic performance of the whole sodium battery is improved, the problem of cyclic sodium precipitation is avoided, and the service life of the battery is further prolonged.

Provided herein are methods of performing multiplex detection of ligand binding kinetics. In some embodiments, the methods include contacting ligands with an array of nucleic acid barcoded oscillators disposed on a first surface of a substrate that comprises an electrically conductive coating, applying an AC electric field to the substrate sufficient to induce the nucleic acid barcoded oscillators to oscillate proximal to the first surface of the substrate, and detecting changes in oscillation amplitudes of the nucleic acid barcoded oscillators over a duration to produce sets of ligand binding data. In some embodiments, the methods also include contacting barcode decoding nucleic acids with the array of nucleic acid barcoded oscillators applying an AC electric field to the substrate sufficient to induce the nucleic acid barcoded oscillators to oscillate proximal to the first surface of the substrate, and detecting changes in oscillation amplitudes of the nucleic acid barcoded oscillators over a duration to produce sets of barcode decoding data.

A method and apparatus for the electrochemical polishing of metallic workpieces are proposed, wherein an electrolyte medium containing solid granular particles and a liquid electrolyte is placed in a container and conductively connected to a first electrode, wherein the metallic workpiece is conductively connected to a second electrode and immersed in the electrolyte medium in the container, wherein the electrodes are subjected to an electrical voltage such that the first electrode in contact with the electrolyte medium has a negative voltage and the second electrode in contact with the workpiece has a positive voltage, and wherein the workpiece is moved relative to the majority of solid granular particles of the electrolyte medium in order to polish it electrochemically.The invention provides that the polarity of the electrical voltage applied to the electrodes is temporarily reversed at least once, in particular periodically, during the electrochemical polishing of the workpiece, so that the first electrode in contact with the electrolyte medium temporarily has a positive voltage and the second electrode in contact with the workpiece temporarily has a negative voltage.

The invention provides a tumor electric field treatment system, an electrode slice temperature detection method and an electrode slice anomaly detection method, the system comprises an alternating current signal generator, an electrode slice and a controller, the electrode slice comprises a plurality of electrode units and a plurality of temperature detection units, the plurality of temperature detection units are divided into a plurality of row groups and a plurality of column groups, and the plurality of electrode units are connected with the controller. The grounding ends of the temperature detection units in each row group are jointly connected to the same grounding wire, and the signal ends of the temperature detection units in each column group are connected to the same dual-purpose signal wire after being in short circuit with the corresponding electrode units; when the dual-purpose signal line is connected to the temperature sampling point, the grounding wires are sequentially conducted, so that temperature detection signals detected by the temperature detection units are sampled based on the temperature sampling point; when the dual-purpose signal line is connected to the alternating power line, alternating electric signals are transmitted to the electrode units. Therefore, the temperature of the electrode plate can be detected by using fewer conductive traces, and whether the electrode plate is abnormal or not can be judged through temperature detection.

The invention discloses a broadband wave-absorbing material based on an MAX-phase metasurface structure and an impedance matching optimization method of the broadband wave-absorbing material. The wave-absorbing material comprises an MAX-phase ceramic substrate and periodic metasurface structures which are arranged on the surface of the MAX-phase ceramic substrate in an array mode and composed of conductive resonance units. The resonance units are isolated through gaps, an equivalent R1L1C1 series resonance circuit is formed in an electromagnetic field, and a base body is equivalent to a parallel resistor R2. By establishing an equivalent circuit model and optimizing parameters R1, L1, C1 and R2, impedance matching of the wave-absorbing material in a target frequency band can be regulated and controlled, so that the wave-absorbing material at least has an absorption peak of which the reflection loss is less than-10 dB. According to the optimization method, electromagnetic simulation and circuit simulation are combined, optimized circuit parameters are reversely mapped into structure geometric parameters, material preparation is guided, and accurate design and broadband absorption of the wave absorbing performance are achieved.

Low-carbon, carbon-neutral, and carbon-negative asphalt composites are disclosed. The composites comprise an asphalt binder and a functionalized biochar incorporated as a partial replacement for the binder and / or mineral filler. The biochar is physically, chemically, or mineralogically modified to enhance dispersion, interfacial bonding, mechanical performance, and carbon sequestration. The invention further includes methods for producing such composites, biochar-based additive compositions, and kits for practical implementation. Applications include asphalt pavements, waterproofing membranes, crack sealants, conductive deicing systems, and VOC-reducing asphalt mixtures. The resulting materials demonstrate improved durability, thermal and electrical properties, and significant reductions in greenhouse gas emissions.

The invention discloses a PDU module and a charging device, and relates to the technical field of power distribution, the PDU module comprises a control board, PCBs, a first control group and a first conductive assembly, the PCBs are connected to the control board at intervals, the first control group comprises a plurality of first relays forming an n * n triangular matrix, and the first relays are fixed on the PCBs. The first conductive assembly respectively realizes electrical communication and cross bridging of relays in the same row and in the same column through the first conductive member, the second conductive member and the bridging busbar. According to the scheme, through the triangular matrix layout, the total number of relays is remarkably reduced on the premise that the same control function as a traditional full matrix is achieved; and meanwhile, the relays are integrated on the PCB and are uniformly controlled by the control panel, so that a large number of connectors and wire harnesses are omitted, the module volume, the material cost and the assembly cost are effectively reduced, and a flexible power distribution function is realized.

The invention relates to a magnetron sputtering system and a coating method thereof, the system comprises a pair of twin silicon target material and aluminum target material which are arranged in a coating chamber, the aluminum target material is located in the middle of a horizontal line where the twin silicon target material is located, the twin silicon target material is electrically connected with a medium-frequency power supply, and the aluminum target material is electrically connected with a direct-current power supply. According to the structural design, on one hand, the uniform deposition range can be expanded, the deposition difference of wide workpieces can be reduced, and the whole surface insulation consistency can be ensured, and on the other hand, the aluminum target realizes uniform doping of the aluminum element and stable control of the content, so that the toughness and binding force of the coating are improved, the influence on insulation is avoided, and the comprehensive performance of the non-conductive coating is remarkably improved.

The invention provides a wear early-warning intelligent material based on conductive core-shell micro-nano particles and a preparation method of the wear early-warning intelligent material, and belongs to the technical field of sensing materials. Conductive core-shell micro-nano particles are used as basic sensing function units to be doped into a polymer matrix to form a sensing layer, a three-layer structure material of a bottom residual life layer, a middle sensing layer and a surface self-lubricating wear-resistant layer is designed, and the material is prepared on a metal auxiliary surface. The surface self-lubricating wear-resistant layer is consumed in the wear process, so that the wear reaches the middle sensing layer, and the resistance of the middle sensing layer is obviously changed due to the damage of the conductive micro-nano particles as an early warning signal, so that the early warning information that the surface self-lubricating wear-resistant layer is worn out and friction pair parts need to be replaced in time is realized.