1062 results about "Composite electrode" patented technology

The invention relates to a concrete chloride ion gradient monitoring and durability enhancing method and system based on MXene, and solves the problems that a traditional drilling sampling method is high in operation process destructiveness, high in cost and low in detection efficiency, test results are remarkably influenced by environmental conditions, and field real-time performance and universal applicability are lacked. The method comprises the following steps: embedding a plurality of prefabricated sensing units containing MXene-Cl composite electrode layers and toughening protection layers into concrete at different depths according to a vertical gradient to form a monitoring network; potential signals are collected through a sensing unit, after correction, the potential signals are introduced into a Nernst equation for inversion to obtain the chloride ion concentration, and osmotic distribution imaging is achieved by combining a preset vertical and transverse gradient estimation method. The intercalation adsorption characteristic of MXene on chloride ions is utilized to capture and retard migration of the chloride ions to the reinforcing steel bar. The method has the advantages that chloride ions are monitored in real time, migration of the chloride ions to the steel bars is blocked, the concrete degradation state is evaluated in combination with multi-parameter data, and early warning and durability improvement are achieved.

The invention discloses a composite electrode material for removing uranium through photoelectrocatalysis and a preparation method and application of the composite electrode material, and belongs to the technical field of catalytic materials and wastewater treatment.The preparation method of the composite electrode material comprises the following steps that a ZIF-8 material, copper salt and ferric salt are mixed, and a first metal composite material is prepared; reacting the first metal composite material with a KOH solution to prepare a second metal composite material; carrying out carbonization treatment on the second metal composite material, and then carrying out acid treatment by using acid to obtain a bimetallic atom catalytic material; the preparation method comprises the following steps: dispersing a bimetallic atom catalytic material and a g-C3N4 material in a mixed solution containing phytic acid and a Nafion solution to obtain catalyst ink; and coating the catalyst ink on a substrate, and carrying out illumination drying to obtain the composite electrode material. According to the composite electrode material, under the synergistic effect of the bimetallic single atomic cluster catalyst and g-C3N4, respective advantages are fully exerted, and efficient deposition removal of uranium is achieved.

A nanocomposite electrode and a supercapacitor device including said nanocomposite electrode. The nanocomposite electrode includes a mixture of at least one binding compound, at least one conductive additive, and at least one molybdenum doped carbon material coated onto a substrate. The supercapacitor device includes two nanocomposite electrodes disposed facing one another, wherein the substrate of each nanocomposite electrode is coated with the mixture on an inside facing surface and the outer surfaces of the nanocomposite electrodes are not coated with the mixture, and the inside facing surfaces are separated by at least one electrolyte.

The invention relates to the technical field of supercapacitors, in particular to an alkali-activated solid-waste-based supercapacitor and a preparation method thereof.The preparation method comprises the steps that industrial solid waste and fiber forestry and agricultural residues are subjected to co-pyrolysis to form organic-inorganic composite solid waste gelling powder, an alkali activator and a functional additive are added to prepare alkali-activated slurry, and the alkali-activated slurry is prepared; pouring, molding and curing to obtain an alkali-activated solid waste-based electrolyte substrate; the method comprises the following steps: performing high-temperature pyrolysis, activation and the like on granular agricultural and forestry wastes to prepare a carbon-based composite conductive material, and preparing a biochar electrode plate; the preparation method comprises the following steps: taking PVDF as a raw material, bonding and curing the PVDF and the raw material, immersing the PVDF and the raw material into a KOH solution containing a PVA thickener, inserting a glass fiber diaphragm, and regulating and controlling the use amount of PVDF and other binders and a solvent system to optimize slurry viscosity and film forming uniformity so as to obtain an electrode film with mechanical flexibility and interface adhesive force; the composite electrode forms a stable composite interface in the process of being in contact with an alkali-activated electrolyte interface, and the phenomena of interface aging and capacitance attenuation caused by mismatching between the electrode and the electrolyte in a traditional cement-based system are effectively avoided.

The invention relates to the field of electrode material preparation, in particular to a graphene local in-situ coated electrode material and a preparation method thereof. The preparation method comprises the following steps: mixing a powdery electrode material with graphite, wherein the mass ratio of the graphite to the powdery electrode material is (0.0001-0.01): 1; and then mechanical grinding is carried out, so that the graphite forms graphene in situ under the action of mechanical force, the surface of the electrode material is coated with the graphene in situ by utilizing the adsorption force of a newly-generated nano surface and mechanical work, and the graphene locally-modified composite electrode material is obtained. According to the preparation method, extremely low graphite consumption is controlled, in-situ generation and coating of graphene are realized by utilizing a mechanical grinding one-step method, complex steps such as independent preparation of graphene and high-temperature sintering are omitted, the process is simple, and the cost is low; and the complete shielding of an ion transmission channel is avoided while an electronic conductive network is effectively constructed, so that the capacity, the cycling stability and the rate capability of the electrode material are remarkably improved.

The invention belongs to the technical field of batteries, and provides a battery cell structure and a manufacturing method and application thereof, the manufacturing method comprises the following steps: forming a plurality of positive electrode insulation partitions arranged at intervals on a to-be-coated surface of a positive electrode current collector, and forming a positive electrode active layer in an area between every two adjacent positive electrode insulation partitions to obtain a positive electrode roll; and unwinding the positive electrode insulation partition, a negative electrode roll and a solid electrolyte membrane roll, carrying out rolling compounding to obtain a composite electrode roll, and cutting the positive electrode insulation partition to obtain the battery cell structure. The positive electrode insulation partition can insulate the periphery of the positive electrode active layer with a smaller area, can compensate the size difference of the positive electrode and the negative electrode, and provides support for the negative electrode in the subsequent rolling compounding process, so that the sizes of the positive electrode and the negative electrode are consistent, and the problem of short circuit caused by edge shearing stress during pressure application is solved; roll-in compounding can effectively improve densification and improve electrolyte interface contact, and the manufacturing method is simple, convenient, economical, efficient and suitable for mass production.

The invention relates to a composite electrode material of an A-C core-shell structure, and belongs to the technical field of electrode materials. In the core-shell structure composite electrode material, A is any one element, two elements, three elements, four elements or five elements selected from Mn, Ni, Co, Fe, Cu, Zn, Ru, Pd and Rh; c is RE < x > Ce < 1-x > O < 2 >, and RE is any one element or two elements selected from La, Pr, Nd, Sm and Gd; x is the mole fraction of RE. By improving the interaction between the oxide and the core multi-component alloy and the synergistic effect between the elements, the structural stability and the carbon deposition resistance of the electrode material under the high-temperature condition are remarkably enhanced.

The invention belongs to the related technical field of flexible electrodes, and discloses a preparation method, a product and application of a high-temperature-resistant flexible metallized ceramic nanofiber composite electrode. The method comprises the following steps: carrying out electrostatic spinning on electrostatic spinning sol doped with an organic polymer to obtain a precursor of a flexible ceramic nanofiber membrane; carrying out primary high-temperature calcination on the precursor to remove the doped organic polymer so as to obtain a flexible ceramic nanofiber membrane; growing and coating a metal conductive layer on the surface of the flexible ceramic nanofiber membrane to obtain an electrode precursor; and carrying out secondary high-temperature calcination on the electrode precursor to obtain the required composite electrode. The invention also discloses a product obtained by the preparation method and application. According to the invention, the problem that the flexible sensor is not resistant to high temperature is solved.

The invention provides a composite electrode for a solid-state battery, a preparation method of the composite electrode, a battery cell for the solid-state battery and the solid-state battery, and particularly relates to the technical field of solid-state batteries. The composite electrode for the solid-state battery comprises a current collector; the active material layer is arranged on at least one side surface of the current collector; the solid electrolyte layer is arranged on the surface of one side, far away from the current collector, of the outer side of the active material layer; the solid electrolyte layer extends outwards in the circumferential direction of the active material layer so as to form a coating structure around the active material layer; and the solid electrolyte layer at the coating structure is in direct contact with the current collector. According to the composite electrode, a solid electrolyte layer structure with edge supporting and insulating effects is formed around the active material layer, so that direct contact between the active material and the edge of the current collector is avoided, and local short circuit is prevented. In addition, the extended solid electrolyte layer can also be used as a physical barrier, so that side reaction of an electrode interface is reduced, the cycle life of the battery is remarkably prolonged, and the safety performance of the battery is remarkably improved.

The invention discloses a flexible pressure sensor based on ionized hydrogel and a preparation method thereof. The sensor adopts a sandwich layered structure of a flexible composite electrode, an ionized water gel dielectric layer and a flexible composite electrode, ionized water gel is used as a dielectric layer, and an upper flexible electrode and a lower flexible electrode are prepared from a multi-walled carbon nanotube / polydimethylsiloxane (MWCNTs / PDMS) composite material; the surface, making contact with the dielectric layer, of the electrode is copied through an abrasive paper template method to form a micron-sized rough structure. Under the action of external pressure, the effective contact area between the microstructure electrode and the ionized water gel dielectric layer and the equivalent electrode distance change, so that the interface electric double-layer capacitance is regulated and controlled, and high-sensitivity conversion from a pressure signal to a capacitance signal is realized. The flexible pressure sensor is simple in structure and excellent in flexibility, can be further integrated into a pressure sensing array, and is suitable for the fields of wearable electronics, electronic skin, man-machine interaction and the like.

The invention provides a solar cell and a preparation method thereof, and a photovoltaic module, the solar cell comprises a substrate, and a first transmission layer, a perovskite layer, a second transmission layer and a silver-carbon composite electrode which are sequentially arranged on the substrate, the silver-carbon composite electrode is located on the surface of the second transmission layer, and the silver-carbon composite electrode comprises a first electrode layer and a second electrode layer, the first electrode layer comprises a conductive polymer and a carbon material, the second electrode layer comprises silver, and the thickness of the second electrode layer is 10-20 nm. The solar cell provided by the invention has higher photoelectric conversion performance and lower manufacturing cost.

The invention discloses an efficient NiMo-Co MOF alkaline electrolysis water electrode and a preparation method thereof.The efficient NiMo-Co MOF alkaline electrolysis water electrode comprises a nickel net, a NiMo deposition layer deposited on the nickel net and a Co MOF deposition layer deposited on the NiMo deposition layer, and during preparation, the nickel net is pretreated firstly; dissolving a nickel salt, a molybdenum salt, a conductive salt and a complexing agent in water to obtain a NiMo electro-deposition solution; the method comprises the following steps: dissolving cobalt salt and a ligand in a mixed solution of DMF and water to obtain a Co MOF electro-deposition solution; the pretreated nickel net is placed in a NiMo electro-deposition solution for constant-current deposition, and a NiMo electrode with a NiMo deposition layer loaded on the nickel net is obtained; the NiMo electrode is placed in the Co MOF electro-deposition solution for constant-voltage deposition, and the NiMo-Co MOF composite electrode with the Co MOF deposition layer loaded on the NiMo electrode is obtained. The method is simple and easy to control, low in preparation cost and good in electrode stability and hydrogen production effect.

A nanocomposite electrode including a substrate, a binding compound, a conductive additive, and NiO / Fe2VO4 nanoparticles. The NiO / Fe2VO4 nanoparticles have a substantially spherical shape. A mixture of the binding compound, the conductive additive and the NiO / Fe2VO4 nanoparticles, is at least partially coated on a first surface of the substrate. A method of making the NiO / Fe2VO4 nanoparticles is described.

The present invention relates to an RF application apparatus comprising a composite electrode that induces surface thermal stimulation and deep thermal stimulation. The RF application apparatus according to an embodiment of the present invention comprises: a first treatment electrode that applies RF energy through skin tissue of a first layer which is a skin surface; a second treatment electrode that includes a plurality of needle electrodes and applies RF energy through skin tissue of a second layer located deeper than the first layer; and at least one return electrode configured to allow returning of RF energy applied from the first treatment electrode or the second treatment electrode, wherein the second treatment electrode is configured to be drawn out and drawn in through the first treatment electrode, and the first treatment electrode and the second treatment electrode are configured to operate simultaneously or selectively.

The invention discloses an electrode health diagnosis method for a silicon-carbon negative electrode battery with a self-adaptive voltage range, and relates to the technical field of battery control, and the method comprises the steps: obtaining a quasi-static open-circuit voltage discharge curve according to a low-rate discharge test of the silicon-carbon negative electrode battery in an aging process, and measuring the total battery capacity; analyzing and extracting the silicon content in the battery; reconstructing a silicon-carbon composite electrode curve according to the silicon content, and performing inversion calculation of a voltage reconstruction model to obtain electrode parameters; the method comprises the following steps: acquiring charging fragment data of a silicon-carbon negative electrode battery in a circulation process, extracting charging time sequence characteristics based on equal interval voltage alignment and relaxation voltage characteristics after full charge according to the charging fragment data, and constructing a corresponding binary mask array; and constructing an estimation model, and performing supervised learning to obtain a trained estimation model for performing diagnosis of the electrode health parameters according to the charging fragment data, thereby effectively improving adaptability and accuracy during electrode health diagnosis.

The invention provides a perovskite solar cell and a preparation method thereof. The perovskite solar cell comprises a transparent substrate layer, a hole transport layer or an electron transport layer, a perovskite active layer, a hole transport layer or an electron transport layer and a composite electrode layer which are sequentially arranged from bottom to top, the composite electrode layer is of a double-layer composite structure composed of a first metal layer and a second metal layer, and the first metal layer is a molybdenum metal layer. The high chemical stability and compact structure of the molybdenum metal layer are utilized, a physical barrier is formed between the perovskite active layer and the second metal layer, migration of halogen ions such as iodine (I-) to the top electrode is effectively inhibited, direct corrosion reaction between the second metal layer and the halogen ions is avoided, and the stability of long-term operation of the device is remarkably improved.

The invention discloses a preparation method of a manganese-doped iron-based sulfide / nitrogen-doped reduced graphene oxide composite electrode material for a sodium-ion battery, a simple solvothermal method is combined with annealing treatment, and iron atoms in a hexagonal system are replaced by part of manganese atoms in a hydrothermal process to form multivalent iron-based sulfide, so that the composite electrode material is prepared. The manganese-doped iron-based sulfide / nitrogen-doped reduced graphene oxide composite electrode material for the sodium-ion battery is successfully prepared by uniformly compounding the manganese-doped iron-based sulfide and the nitrogen-doped reduced graphene oxide, and the manganese-doped iron-based sulfide / nitrogen-doped reduced graphene oxide composite electrode material can effectively regulate and control the electronic state density, reduce the sodium ion migration energy barrier and promote the electron / ion transmission; meanwhile, continuous growth of iron-based sulfide particles is limited, so that the iron-based sulfide particles are uniformly dispersed on the surface of the graphene, more active sites are exposed, the electrochemical reaction activity is improved, and the structural stability is enhanced. The composite electrode material disclosed by the invention can be widely applied to a negative plate for a sodium-ion battery, and has excellent adaptability and application prospect in a wide temperature range and under a high-current working condition.

The invention relates to the technical field of new materials and electrochemical energy storage materials, and discloses a polyimide-derived graded porous carbon / carbon fiber composite electrode and a preparation method thereof.The preparation method comprises the steps that a carbon fiber felt is used as a substrate, and the polyimide-derived graded porous carbon / carbon fiber composite electrode is prepared through polyimide solution spraying, metal organic gel template deposition, gradient carbonization and eutectic activation processes; and a micropore-mesopore-macropore three-stage through structure is constructed. Through template collaboration and activation process optimization, the constructed composite electrode has a unique micropore-mesopore-macropore three-stage through structure, solves the problems of mass transfer limitation and insufficient active sites of a traditional carbon electrode, can be widely applied to all-vanadium, iron-chromium and organic system flow batteries, and has significant industrial application value.

The invention relates to the field of electro-catalysis and nano materials, in particular to a preparation method and application of a basic cobalt chloride and ferrocobalt spinel composite electrode material. According to the method, an alkaline low-water high-viscosity alcohol reaction system is adopted, and basic cobalt chloride and a ferrocobalt spinel material are promoted to be deposited on a nickel net at the same time under the high-temperature condition. The prepared basic cobalt chloride and ferrocobalt spinel composite electrode has high catalytic activity and stability, shows good electrochemical performance in a seawater environment, and can be used as a high-activity and high-stability seawater electrolysis hydrogen production electrode.

The invention relates to the technical field of preparation of high-entropy alloy materials, in particular to a C / S / HES composite electrode material based on high-entropy sulfides and a preparation method and application thereof.The preparation method comprises the following steps that a carbon material is dispersed in N, N-dimethylformamide to obtain a carbon material dispersion liquid, an iron source, soluble metal salt and sublimed sulfur are mixed with a carbon source solution, and the carbon material dispersion liquid is obtained; carrying out hydrothermal reaction to obtain high-entropy sulfide; mixing a carbon source with sublimed sulfur, and carrying out hot melting treatment to obtain a carbon / sulfur positive electrode material; the preparation method comprises the following steps: taking a high-entropy sulfide as an electrocatalyst, mixing and grinding the high-entropy sulfide and a carbon / sulfur positive electrode material, and carrying out hot melting treatment to obtain the C / S / HES composite electrode material based on the high-entropy sulfide. The electrochemical kinetics of soluble NaPSs in the sodium-sulfur battery is accelerated by screening a proper high-entropy sulfide catalytic host, and the electrochemical behavior is improved.

The invention discloses a lignin-derived carbon fiber-based sodium metal battery negative electrode material which is prepared by the following steps: performing granulation and melt-blowing on lignin to obtain lignin fibers, performing pre-oxidation and carbonization treatment on the lignin fibers to obtain lignin-derived carbon fibers, soaking the lignin-derived carbon fibers in a silver nitrate saturated solution, taking out the lignin-derived carbon fibers, and drying to obtain the lignin-derived carbon fiber-based sodium metal battery negative electrode material. And carrying out flash burning treatment to obtain the silver nanoparticle / lignin derived carbon fiber composite material. The invention discloses a composite electrode plate for a sodium metal battery, which is prepared by the following steps: grinding a lignin-derived carbon fiber-based sodium metal battery negative electrode material into a short fiber shape, uniformly mixing with polyvinylidene fluoride and N-methyl pyrrolidone to prepare slurry, coating a negative current collector with the slurry, and cutting into pieces to obtain the lignin-derived carbon fiber-based composite electrode plate. The lignin-derived carbon fiber-based sodium metal battery negative electrode material has a three-dimensional interpenetrating network structure, has a high specific surface area, enables an electric field to be uniformly distributed, inhibits dendritic crystal growth, and is suitable for a sodium metal battery system.

The invention provides a multi-walled carbon nanotube paste electrode based on gold nanoparticles and C60 modification as well as a preparation method and application thereof, and belongs to the technical field of electrochemical sensors. The preparation method comprises the following steps: firstly, modifying fullerene C60 on the surface of a carbon nanotube paste electrode (MWCNTPE) to form C60 / MWCNTPE, then loading gold nanoparticles on the surface of the C60 / MWCNTPE, and finally constructing the AuNPs / C60 / MWCNTPE composite electrode. The prepared composite electrode is used for environmental estrogen detection, especially for simultaneous detection of hydroquinone, catechol and bisphenol A. The method has the advantages of high sensitivity and low detection limit, can solve the problem that hydroquinone and catechol isomeride are difficult to separate through the detection capability, has the advantages of simplicity and convenience in operation and low cost, and has good practical applicability, stability and reproducibility.

The invention relates to a preparation method of an electrode, the electrode and a metal-based flow battery. The preparation method of the electrode comprises the following steps: S100, cleaning and drying a carbon felt; s200, preparing an MXene colloidal solution; and S300, loading the MXene colloid on the surface of the carbon felt in situ by adopting an electrochemical deposition method to form the MXene-coated CF composite electrode. Through the arrangement, the high-zinc-ion-concentration IHP layer is constructed on the negative electrode of the battery by using MXene to inhibit dendritic crystal formation and reduce polarization loss, and the high-current-density performance and cycling stability of the zinc-bromine flow battery are improved.

The invention discloses an organic composite electrode material, a preparation method thereof and a photo-assisted charging ammonium ion battery. The organic composite electrode material is obtained by compounding 2, 6-di [1-(pyrene-3, 4, 9, 10-tetraformyl diimine)] anthraquinone and reduced graphene oxide, and the organic composite electrode material is prepared by compounding the 2, 6-di [1-(pyrene-3, 4, 9, 10-tetraformyl diimine)] anthraquinone and the reduced graphene oxide. According to the invention, the photo-assisted charging strategy and the aqueous ion battery are combined, the ammonium ions are used as the charge carrier of the aqueous photo-assisted charging battery for the first time by virtue of the rapid dynamic characteristic of the ammonium ions in the aqueous electrolyte, and the advantages of rapid ion transmission of the ammonium ions in the electrolyte are utilized; the problem that the photoelectric reaction rate and the electrochemical oxidation reduction rate in the aqueous photo-assisted rechargeable battery are not matched is solved, collaborative optimization of the photoelectric reaction rate and the electrochemical reaction rate is achieved, the charging and discharging efficiency and the energy utilization rate of the battery are remarkably improved, and a new thought is provided for the next generation of photo-storage integrated battery technology.

The invention belongs to the technical field of energy and electrochemical catalysis, and discloses a titanium nitride / transition metal phosphide heterojunction electrode with a nano array structure, a preparation method of the titanium nitride / transition metal phosphide heterojunction electrode and application of the titanium nitride / transition metal phosphide heterojunction electrode to seawater electrolysis for hydrogen production. The electrode comprises titanium nitride grown on a conductive substrate and transition metal phosphides (such as cobalt phosphides, nickel phosphides, iron phosphides or a combination thereof) loaded on the surface of the titanium nitride. According to the composite electrode, a titanium dioxide nano array is synthesized on a conductive substrate through seed crystal assisted solvothermal, and a titanium nitride electrode is obtained through high-temperature nitridation; and then carrying out hydrothermal loading on a transition metal precursor and carrying out low-temperature phosphating treatment to obtain the titanium nitride / transition metal phosphide composite electrode. By combining high conductivity and corrosion resistance of titanium nitride and high catalytic activity and electrochemical stability of transition metal phosphide, the technical problems that a traditional electrode is easy to corrode and poor in catalytic stability in a seawater environment are solved; the synthesized titanium nitride / transition metal phosphide composite electrode is of a multi-scale graded nano array structure, and the micro-nano composite morphology of the composite electrode can be used for inducing the turbulence effect of an electrolyte, so that hydrogen evolution bubble separation is accelerated, and interface adsorption of precipitates such as magnesium hydroxide / calcium hydroxide is inhibited. Through the innovative hierarchical heterostructure design, an efficient, low-cost and long-life electrode solution is provided for direct hydrogen production from seawater, and the method has a wide industrial application prospect.

The invention relates to a preparation method of a water electrolysis hydrogen production composite electrode based on a zwitterionic polymer binder. According to the method, a traditional ionic binder Nafion is replaced with a zwitterionic polymer polysulfobetaine methacrylate, an electrode-electrolyte interface is optimized through a unique electrically neutral hydration layer structure, the rapid desorption behavior of bubbles is enhanced, and efficient transmission of reaction ions is also promoted; and regulating and controlling the mass ratio of the PSBMA binder to the catalyst by using a spraying process. The invention aims to overcome the defects of high cost, insufficient mass transfer and poor interface stability of the existing Nafion binder, and provides the composite electrode taking PSBMA as the binder and the preparation method of the composite electrode, and the provided composite electrode is simple in preparation process and controllable in cost, and has good popularization and application prospects.

The invention provides a lightweight flexible composite micro-energy storage module, which comprises a flexible substrate, a composite electrode layer, a solid electrolyte layer and a packaging layer, and is characterized in that the flexible substrate is made of a polyurethane-graphene composite material, the thickness of the flexible substrate is 50-200 [mu] m, and the surface of the flexible substrate is provided with a micro-crack structure; the composite electrode layer is formed by alternately stacking MXene / silicon carbon composite nanosheets and polypyrrole conductive polymers, wherein the mass ratio of MXene to silicon carbon is 3: 1 to 5: 1. According to the invention, through the mechanical interlocking design of the microcrack structure of the flexible substrate and the composite electrode layer, the interlayer binding force is significantly enhanced, and the structural integrity under dynamic bending is improved; the root-shaped ion transmission channel of the solid electrolyte layer and the vertical orientation transition layer realize electron-ion dual-channel cooperative transmission and reduce the interface impedance; the gradient hydrophobic structure of the packaging layer is matched with mechanics through chemical bonding, the sealing performance, the flexibility and the environmental tolerance are balanced, and the service life of the module is prolonged.

The invention discloses a flexible temperature sensor of an ultrahigh-conductivity Cu-LIG composite electrode and a preparation method of the flexible temperature sensor. A polymer film is used as a flexible substrate and a carbon source precursor of a device, and a super-hydrophilic LIG electrode with a patterned structure is prepared on the surface of the flexible film through a laser processing technology; the preparation method comprises the following steps: further implementing Ag catalytic nano particle formation treatment on the surface of an LIG electrode, subsequently generating a compact Cu sheet layer on the LIG surface by using an in-situ chemical self-deposition technology under the action of Ag catalytic nano particles, forming a Cu-LIG up-and-down laminated composite electrode structure, and realizing the preparation of the sensor by virtue of packaging of an external connecting circuit. The temperature sensor has the advantages of high resistance temperature coefficient, fast dynamic response performance, wide temperature sensing range and the like.

The invention discloses a rigid-flexible coupling all-solid-state battery suitable for a high-expansion electrode and a preparation method thereof.The all-solid-state battery comprises a composite positive electrode, an all-polymer electrolyte layer and a composite negative electrode which are sequentially assembled, and in-situ polymerization polymer electrolyte networks are constructed in the composite positive electrode and the composite negative electrode; the all-polymer electrolyte layer comprises a polymer electrolyte network constructed by in-situ polymerization, a lithium salt, a plasticizer and a fast ion conductor ceramic filler; polymer electrolyte networks in the composite positive electrode, the composite negative electrode and the all-polymer electrolyte layer are of a double-network structure consisting of a rigid polymer skeleton and a flexible cross-linked polymer network. Through the integrated structural design of the all-polymer electrolyte and the composite electrode, the ionic conductivity, the interface stability, the cycle performance and the safety performance are synergistically improved, and the requirements of high energy density and high-safety energy storage are met.

The embodiment of the invention provides a self-supporting integrated composite electrode and a preparation method thereof, and the self-supporting integrated composite electrode comprises a supporting layer which comprises a conductive carbon skeleton and a three-dimensional porous carbon network structure which is integrally molded with the conductive carbon skeleton; the active layers are uniformly distributed in internal pores of the three-dimensional porous carbon network structure and the surface of the conductive carbon skeleton; and a coating layer, wherein the coating layer covers the active layer and the three-dimensional porous carbon network structure. According to the self-supporting integrated composite electrode and the preparation method thereof provided by the embodiment of the invention, by constructing the self-supporting integrated composite electrode structure, the core problems of high internal resistance of a binder, weight increment of a current collector, interface stripping, complex preparation process and the like in a traditional electrode are effectively solved.