38 results about "Conduction channel" patented technology

The invention discloses a coating diaphragm and a preparation method thereof, the coating diaphragm comprises a base film, a first coating and a second coating, the first coating and the second coating are respectively located on two sides of the base film; the first coating comprises sodium carboxymethyl cellulose, a metal organic framework, a modified solid electrolyte and a first pressure-sensitive adhesive, and the modified solid electrolyte is obtained by modifying a solid electrolyte with silicon resin; and the second coating comprises sodium carboxymethyl cellulose, a polyvinylidene fluoride-hexafluoropropylene copolymer, an emulsion type binder and a second pressure-sensitive binder. The solid electrolyte has a rigid framework to provide a rapid conduction channel, and the metal organic framework has a high specific surface area and can cooperate with the solid electrolyte to construct a three-dimensional network, so that the stable performance of the coating diaphragm is guaranteed.

The utility model relates to the technical field of magnetic disk control, and discloses an ultra-thin magnetic disk controller, which comprises a controller main body, a metal heat dissipation plate is tightly attached and fixed at the bottom of the controller main body, and a plurality of heat dissipation fins are uniformly and vertically distributed at the bottom end of the metal heat dissipation plate so as to increase the heat dissipation area; and a heat-conducting copper pipe. According to the utility model, the controller main body is tightly connected with the metal heat dissipation plate, and the heat dissipation fins reasonably distributed at the bottom end are matched, so that the heat dissipation area is greatly increased, and heat generated by the controller main body can be quickly dissipated to the surrounding; secondly, the heat conduction copper pipe is accurately connected with the heating source main chip, the power amplifier and the heat dissipation fins, an efficient heat conduction channel is opened up for heat by means of the excellent heat conduction performance, and it is ensured that the heat is conducted out in time; and moreover, the shell is made of a high-thermal-conductivity plastic material and is provided with regular micro heat dissipation holes, so that the ultrathin structure is maintained, the efficient heat exchange between the inside and the outside air is ensured, and the heat dissipation is further enhanced.

The utility model relates to an EVA (Ethylene Vinyl Acetate) cold and hot shaping device which comprises a rack, a hot pressing plate, a cooling plate, a condensing pipe, a movable plate and a driver, the hot pressing plate is fixedly arranged on the rack; the cooling plate is fixedly arranged on the rack, the cooling plate and the hot pressing plate are correspondingly arranged up and down, a containing cavity is formed in the cooling plate, the cooling plate is provided with an air inlet pipe and an air outlet, and the air inlet pipe and the air outlet are both communicated with the containing cavity; the condensation pipe is arranged in the accommodating cavity; the movable plate is connected with the rack in an up-down moving manner, the movable plate is arranged between the hot pressing plate and the cooling plate, a conduction channel is arranged in the movable plate, a conduction hole is formed in the upper end of the movable plate, the conduction hole is communicated with the conduction channel, and the air outlet is communicated with the conduction channel; the driver is fixedly arranged on the rack, and the telescopic end of the driver penetrates through the cooling plate to be fixedly connected with the movable plate. The EVA workpiece cooling device can directly cool an EVA workpiece after hot pressing and shaping, does not need to be operated by workers, is good in cooling effect, shortens cooling time and improves production efficiency.

The invention provides a solid electrolyte, a sandwich structure solid electrolyte membrane and a preparation method and application, and relates to the technical field of solid batteries, the solid electrolyte provided by the invention has the advantages that Li ions are partially replaced by M ions, and the radius of the M ions is larger than that of Li, so that higher degree of freedom is provided for residual Li, and coordination of alkali metal in a migration process is facilitated. Cl is replaced by cluster ions, and the cluster ions provide more degrees of freedom, so that coordination of alkali metal in a migration process is facilitated, and relatively high ionic conductivity is achieved. A double-doping strategy of M and A generates a synergistic effect, so that not only is the mobility of a cationic sublattice optimized, but also a conduction channel of an anionic skeleton is widened, and the ionic conductivity is improved by one order of magnitude compared with that of a traditional sulfide electrolyte. In addition, the solid electrolyte has good structural stability and excellent processability.

The invention belongs to the technical field of sodium ion battery materials, and particularly relates to a sodium-containing modified polyvinylidene fluoride binder as well as a preparation method and application thereof. The sodium-containing modified polyvinylidene fluoride binder comprises a sodium-containing functional unit-polyvinylidene fluoride copolymer, alkannin and a lophatherum gracile polysaccharide stabilizer, wherein the alkannin is grafted on the surface of the sodium-containing functional unit-polyvinylidene fluoride copolymer; the sodium-containing functional unit is combined with a polyvinylidene fluoride main chain through covalent bond grafting. According to the preparation method, the sodium-containing functional unit-polyvinylidene fluoride copolymer is prepared, polyvinylidene fluoride has a bonding function, the sodium-containing functional unit can release sodium ions, compensate sodium loss of the first cycle of the positive electrode and improve the first effect performance, and the sodium-containing functional unit and the polyvinylidene fluoride are connected through a covalent bond to construct a sodium ion conduction channel, so that the conductivity of the sodium ions is improved; meanwhile, a sodium supplementing agent and a conductive polymer with a certain volume are prevented from being introduced into the binder, and the high-activity substance proportion and the binding performance of the binder can be kept.

A hearing instrument system is proposed, comprising a hearing instrument (1) having a housing (12) and at least one speaker (8) disposed within the housing (12), the speaker being connected to the environment of the housing (12) via a sound conduction channel (14). Furthermore, the hearing instrument system has a controller (6) configured to determine whether at least one initiation condition exists for realizing a cleaning mode of the sound conduction channel (14), and if such initiation condition exists or one of a plurality of possible initiation conditions, to initiate a cleaning mode and, during the cleaning mode, to emit a sound signal with a predetermined waveform having a varying periodic duration through the speaker (8).

The invention discloses a flame temperature image conduction device of a combustion furnace and flame temperature image detection equipment, the flame temperature image conduction device of the combustion furnace comprises a heat-resistant metal tube, a vacuum cavity is arranged in the heat-resistant metal tube, and one end of the heat-resistant metal tube is at least partially bendable and is suitable for corresponding to flame of the combustion furnace; the optical fiber matrix is arranged in the vacuum cavity, an image conduction channel is formed in the optical fiber matrix, and the image output end of the image conduction channel is suitable for corresponding to the camera; and the Peltier refrigeration part is arranged on the circumferential outer side of the optical fiber matrix in a sleeving manner and is attached to the optical fiber matrix. Therefore, one end of the heat-resistant metal tube is at least partially bendable, the range of a flame temperature image of a conduction combustion furnace can be widened, the optical fiber matrix can resist high temperature and corrosion, and the flexibility of the optical fiber matrix can be matched with the bending angle of the heat-resistant metal tube. In addition, the cooling efficiency of the Peltier refrigerating part is high, and the temperature can be accurately controlled.

An improved reverse field-effect transistor semiconductor device and its fabrication method may include a source layer at the bottom and a drain at the top of a semiconductor substrate, and a vertical conduction channel between the source layer and the drain region, the trench being controlled by a trench gate electrode disposed in a gate trench lined with insulating material. A heavily doped drain region is disposed near the top of the substrate surrounding the upper portion of the shielding trench and the gate trench. A doped body contact region is disposed in the substrate and surrounding the lower portion of the shielding trench. A shielding electrode extends upward from the source layer in the shielding trench for electrically short-circuiting the source layer and the body region, wherein the shielding structure extends upward to the heavily doped drain region and is insulated from the heavily doped drain region to serve as a shielding electrode.

The invention provides a negative electrode binder, a negative plate and a lithium ion battery. The negative electrode binder comprises a basic binding phase, a dynamic crosslinking phase and a conductive reinforcing phase. According to the negative electrode binder, the negative electrode plate and the lithium ion battery, the negative electrode binder is a composite system, dopamine modified polyacrylic acid is taken as a basic framework, a dynamic hydrogen bond network is constructed by introducing boric acid, and meanwhile, PEDOT: PSS can be compounded to form a double-conductive network. Wherein dopamine is modified to improve the density of hydrogen bond sites, boric acid is introduced into a dynamic reversible hydrogen bond to realize room-temperature self-repairing, and PEDOT: PSS and SuperP cooperate to construct an electron and ion double-conduction channel. The silicon-based negative electrode plate adopting the binder can effectively relieve volume expansion of silicon in the charging and discharging process, the cycling stability and the energy density are remarkably improved, and the silicon-based negative electrode plate is suitable for the field of high-performance lithium ion batteries.

The utility model discloses a sound box rotary table which comprises a base, a rotary table body and a rotary table, the rotary table body and the rotary table are arranged on the base, a motor, a loudspeaker and a vibrating diaphragm are arranged in the rotary table body, the loudspeaker and the vibrating diaphragm are adjacently arranged at the top of the rotary table body, and a driving shaft of the motor extends out of the rotary table body to be connected with the rotary table. The rotating disc covers the loudspeaker and the vibrating diaphragm, and a sound wave conduction channel is formed by the distance between the rotating disc and the rotating table body. According to the loudspeaker box rotary table provided by the utility model, the rotary table is driven by the motor to rotate, so that exhibitions can be enjoyed by exhibition users in an omnibearing and multi-angle manner, the loudspeaker box and the rotary table are integrated, music emitted by the loudspeaker box can be enjoyed when the exhibitions are carried, and the use experience of the exhibition table is improved.

The invention discloses an absorption core body, a preparation method and device of the absorption core body and a hygienic product, and relates to the technical field of personal hygienic products. The functional fiber layer is laminated with the framework layer and is used for absorbing liquid; at least one protruding part is arranged on the side, facing the framework layer, of the functional fiber layer, and at least part of the protruding part is located in the framework layer. The protruding part forms a liquid conduction channel between the skeleton layer and the functional fiber layer; and the cross sectional area of the convex part is continuously and progressively decreased from the functional fiber layer to the skeleton layer along the axial direction. According to the absorption core body, the three-dimensional cotton non-woven fabric serves as a framework, the absorption core body is endowed with excellent elasticity and toughness, meanwhile, the protruding parts at least partially located in the framework layer are arranged in the functional fiber layer with the liquid absorption function, a three-stage liquid absorption system of surface layer rapid capture, channel conduction and framework layer storage is constructed, and the absorption effect is improved. And efficient absorption of liquid is realized.

A hearing instrument system has a hearing instrument with a housing and at least one loudspeaker arranged in the housing connected to an environment of the housing via a sound conduction channel. The hearing instrument system further has a controller configured to ascertain whether at least one starting condition for initiating a cleaning mode for the sound conduction channel is present. If the or one of multiple, as appropriate, starting conditions is present, initiate the cleaning mode, and during the cleaning mode, output an audio signal with a specified waveform with a varying period using the loudspeaker.

A hearing instrument system is described, comprising a hearing instrument (1) with a housing (12) and at least one loudspeaker (8) arranged in the housing (12), which is connected to the environment of the housing (12) via a sound conduction channel (14). Furthermore, the hearing instrument system includes a controller (6) configured to determine whether at least one start condition for initiating a cleaning mode for the sound conduction channel (14) is present, to initiate the cleaning mode if the start condition or one of possibly several is present, and to emit a tone signal in the form of a chirp via the loudspeaker (8) during the cleaning mode.

The invention provides a porous graphene negative electrode material and a preparation method thereof, and relates to the technical field of graphene materials, and the porous graphene negative electrode material comprises the following components in parts by mass: 10-30 parts of graphene, 2-8 parts of carbon nanotubes, 5-15 parts of a nitrogen source, 1-5 parts of nano metal particles, 0.5-3 parts of a dispersant and 50-80 parts of a solvent; the carbon nanotubes are used for connecting dispersed graphene sheet layers and inhibiting stacking of the graphene sheet layers, the nitrogen source is used for introducing nitrogen-doped defect sites into a graphene carbon skeleton, and the nano metal particles are used for constructing a graphene-metal conductive network; according to the invention, graphene and carbon nanotubes are reasonably proportioned, so that the carbon nanotubes play roles of bridges and pillars at the same time, effectively connect dispersed graphene sheet layers and inhibit stacking of the graphene sheet layers, and form a high-speed electron conduction channel penetrating through material particles, so that the internal resistance of the electrode is remarkably reduced, and the large-current charge-discharge capability of the negative electrode is greatly improved; the problem of poor conductivity caused by stacking of a traditional graphene negative electrode is solved.

The application discloses an analog bone conduction microphone, and relates to the technical field of electroacoustic conversion, which comprises a substrate circuit board, a shell, a metal gasket, a vibrator, an analog ASIC chip and a MEMS chip; the shell is connected to the substrate circuit board to form a containing cavity; the metal gasket is arranged in the containing cavity and has a first side face facing the substrate circuit board and a second side face facing away from the substrate circuit board, the metal gasket is provided with a conducting channel penetrating through the first side face and the second side face; the vibrator is arranged on the first side face and covers the conducting channel; the analog ASIC chip is arranged on the second side face; the MEMS chip is arranged on the second side face and opposite to the conducting channel; the MEMS chip receives the vibration signal transmitted by the vibrator through the conducting channel and converts the vibration signal into an electric signal and outputs the electric signal to the analog ASIC chip. The scheme can solve the problems of complex process, high manufacturing cost, and limited production yield and efficiency of the multilayer PCB stack packaging structure of the existing analog bone conduction microphone.

The invention relates to a heat exchanger system comprising a heat exchanger element (1) or multiple heat exchanger elements (1) which are fluidically connected to one another, wherein: each heat exchanger element (1) comprises fluid-conducting channels (4); a respective heat exchanger element (1) is formed by a stack of at least two overlapping film elements (2, 3); the film elements (2, 3) are formed from plastic material or plastic composite material, and all channels (4) of the heat exchanger element (1) are formed between two neighbouring film elements (2, 3), which are integrally connected in connection regions (5) and which surround the channels (4); the film elements lying on top of one another can be pulled apart from one another in the non-connected regions by the entering fluid, and the heat exchanger elements can be extended in the stacking direction of the stacked film elements.

The application is suitable for the technical field of medical devices, and provides a device and a method for long-term in-vivo monitoring of fascia chamber pressure and temperature. The device comprises: an indwelling catheter having a hollow inner cavity constituting a pressure conducting channel; a pressure sensor in sealed communication with the pressure conducting channel, for monitoring the pressure in the fascia chamber; a temperature sensor fixed to the outer wall of the indwining catheter and physically isolated from the pressure conducting channel, for monitoring the tissue temperature in the fascia chamber; a main control module electrically connected with the pressure sensor and the temperature sensor, for receiving and processing pressure signals and temperature signals to generate monitoring data; and a transmission module for transmitting the monitoring data to a terminal device. The application physically isolates the temperature sensor from the pressure conducting channel, thereby ensuring the accuracy of pressure measurement, and improves the evaluation accuracy through joint determination of two parameters, and can realize remote centralized monitoring and improve the monitoring efficiency.

This invention relates to the field of batteries, specifically to an MXene composite modified material, a composite modified layer, a preparation method, and applications for enhancing the interface between a silicon anode and a solid electrolyte. The material comprises MXene sheets and inorganic solid lithium-ion conductive particles. The MXene sheets form a continuous electronic conductivity network, and the lithium-ion conductive particles fill the spaces between the MXene sheets to form ion conduction channels. This composite modified layer possesses a dual-conductivity network structure for both electrons and ions. It exhibits good electronic and ionic conductivity and sufficient flexibility to buffer volume changes in the silicon anode.

The invention relates to the technical field of radio frequency system packaging, in particular to a multi-channel radio frequency microsystem packaging framework and method considering heat dissipation and isolation. On one hand, electromagnetic shielding between channels of a sandwich structure is formed for the radio frequency power chips on the two sides through the metal shielding blocks, and on the other hand, the metal heat conduction blocks are loaded on the tops of the radio frequency power chips, and then the metal heat conduction blocks and the top heat sink of the whole system form upward directional heat conduction channels of the system through the shielding heat conduction and electric conduction adhesive. Finally, an integrated'shielding-heat dissipation 'system architecture is cooperatively constructed, a vertical short-path heat dissipation channel is established for a high-power gallium nitride radio frequency chip while high isolation between channels is realized, and the strict requirements of a high-integration radio frequency system on high isolation, strong heat dissipation and high reliability are met; the antenna can be widely applied to 5G communication base stations, phased array radar T / R assemblies, satellite navigation terminals and other scenes, and has the advantages of high reliability, compact structure and low cost.

The invention discloses a PEM electrolysis humidity regulation and control assembly based on a structure-adjustable catalyst layer and preparation, and belongs to the technical field of membrane electrochemical devices and air humidity regulation and control. The assembly comprises a proton exchange membrane, an anode catalyst layer, a cathode catalyst layer and a diffusion layer, at least one of a compact structure, a loose porous structure and an ionomer gradient structure in the normal direction of the membrane is introduced into the anode catalyst layer by adding a surfactant and a pore forming agent or spraying ionomers in a layered manner, and the microstructure and composition distribution of the catalyst layers are regulated and controlled by a system. According to the method, a gas diffusion path of water vapor, a conduction channel of protons and an electrochemical reaction interface are effectively and synergistically optimized, so that the dehumidification rate of a humidity electrolysis device is remarkably improved, the interface impedance is reduced, and the operation stability and adaptability of the humidity electrolysis device are enhanced on the premise of not increasing the dosage of the catalyst.

The invention discloses a solid electrolyte, a preparation method thereof, a composite positive electrode active material and an all-solid-state battery. The solid electrolyte has a core-shell structure, an inner core is a garnet type solid electrolyte, the high cubic phase purity in the crystal structure can provide more rapid lithium ion conduction channels, the high ionic conductivity of the material is ensured, meanwhile, the doped elements such as Al, Fe and Ga can stabilize the cubic phase, and the high ionic conductivity of the material can be kept for a long time; and the shell is a uniform carbon coating layer, so that the electronic conductivity of the material can be effectively improved, the material has high ionic conductivity and electronic conductivity, and the rate capability and the stability of a battery are improved. According to the preparation method of the solid electrolyte, the solid electrolyte with high ion-electron conductivity can be prepared only through one-step sintering, the preparation process is simple, the cost is low, and the performance of a final product is good.

The invention discloses a composite solid electrolyte membrane containing a compound inorganic filler and a preparation method of the composite solid electrolyte membrane. The electrolyte membrane comprises a polymer porous supporting layer and an inorganic-polymer composite conducting layer arranged in pores and / or the surface of the polymer porous supporting layer, the inorganic filler is a compound of one-dimensional nanowires and two-dimensional nanosheets, the compounding mass ratio is (1: 5)-(5: 1), and the total mass accounts for 30%-60%; and the molar ratio of the LiTFSI to the ether oxygen group (EO) in the PEO is (1: 8)-(1: 20). According to the invention, a three-dimensional continuous ion conduction network is constructed through synergistic compounding of multi-dimensional fillers, so that the defects of easy agglomeration, discontinuous conduction channel, high interface impedance and insufficient mechanical and thermal stability of a single filler in the prior art are overcome; the obtained electrolyte membrane has high ionic conductivity, high lithium ion transference number, low interface impedance and excellent mechanical strength and thermal stability, the preparation process is mature and easy to scale, and the electrolyte membrane is suitable for high-performance solid-state or semi-solid-state lithium batteries.

The application belongs to the technical field of lithium ion batteries, and particularly relates to a negative electrode sheet and a lithium ion battery. The negative electrode sheet comprises a current collector and active material coating layers coated on both sides of the current collector. The active material coating layers are provided with linear grooves obtained by laser etching, and the grooves are parallel to the width direction. The depth of the linear grooves H is less than the thickness of the single-sided active material coating layer H0. The active material coating layer is divided into three regions, i.e., an inner region, a transition region and an outer region along the length direction of the current collector. The inner region is located at the starting end of the active material coating layer, the outer region is located at the terminal end of the active material coating layer, and the transition region connects the inner region and the outer region. The negative electrode sheet of the application adopts the active material coating layer with high compaction density and the gradient design of the depth of the linear grooves obtained by laser etching, thereby constructing a lithium ion rapid conduction channel, providing a buffer space for volume expansion, improving the electrolyte infiltration effect in the battery pack, reducing local polarization, and improving the cycle life of the battery.

The invention provides a lithium metal battery monomer and a preparation method thereof, a preparation method of a positive pole piece, a battery device and a power utilization device.The lithium metal battery monomer comprises a lithium metal negative pole piece and a positive pole piece, and the positive pole piece comprises a positive current collector and a positive active material film layer arranged on at least one side of the positive current collector; the positive electrode active material film layer comprises a lithium-conducting binder, a lithium salt and a plasticizer, the plasticizer is used for dissociating and / or dispersing the lithium salt, and the plasticizer comprises one or more of a sulfone compound, a sulfonamide compound and aromatic nitrile. A high-speed ion conduction channel is constructed in the positive pole piece of the lithium metal battery cell in the embodiment of the invention, so that the dynamic performance and the cycle life of the lithium metal battery cell are improved.

The invention discloses a preparation method of a high-load NCM positive electrode based on an SWCNT coated LLZO core-shell fiber non-woven fabric, and belongs to the technical field of lithium ion batteries. According to the invention, a single-walled carbon nanotube (SWCNT) fiber is used as a core, and a high-speed electron conduction path and mechanical support are provided; cubic-phase lithium lanthanum zirconium oxide (LLZO) is used as a'shell ', a high-speed ion conduction channel is provided, and physical isolation and chemical protection are carried out on an internal electronic path; preparing the core-shell fibers into a three-dimensional porous non-woven fabric skeleton through an electrostatic spinning or air laying technology; and finally, filling and fixing the high-nickel NCM ternary positive electrode active material in pores of the framework in a highly dense manner by means of solution permeation and in-situ thermal sintering to form the final composite positive electrode. Not only is the energy density of the battery improved, but also extremely high surface capacity and excellent rate capability and surface capacity can be realized.

The application discloses a kind of magnetic field regulation magnesium iron bimetallic hydroxide ordered alkaline diaphragm and preparation method.Belongs to alkaline electrolytic water hydrogen production technical field.For the problem of no order distribution of functional filler in existing composite diaphragm,ion conduction channel is not smooth,The application proposes a new method of constructing directional structure with the aid of magnetic field.This method uses magnesium chloride and ferric chloride as raw materials to synthesize magnesium iron bimetallic hydroxide with magnetism in situ in polymer solution,coats film on the substrate with specific direction external magnetic field,uses magnetic field force to drive magnesium iron bimetallic hydroxide directional arrangement,obtains composite diaphragm after drying and curing.Through the process,successful construction directional ion transport channel is penetrated along the thickness direction in the diaphragm.The method is simple in process,remarkable in effect,The diaphragm prepared has excellent ion conductivity and electrolysis performance,provides a new idea for the preparation of high-performance alkaline diaphragm.

The application discloses a kind of based on melting polymerization hetero-linkage type COFs material, one-pot synthesis method and application thereof, the hetero-linkage type covalent organic framework material based on melting polymerization is formed frame structure by covalently connecting ethene bond and polyimide bond, the one-pot synthesis method includes that active methyl and amino-containing heterocyclic monomer, aromatic aldehyde monomer, aromatic dianhydride monomer are mixed with fluxing agent, under solvent-free condition, melting polymerization reaction is carried out, and the target product is obtained.The application creatively provides a kind of hetero-linkage type COFs material with the covalent connection bond of ethene bond and polyimide bond in frame structure, it contains the redox active site formed by carbonyl and heterocyclic simultaneously in its skeleton and the intrinsic electronic transmission channel constructed by ethene bond, with high active site density and intrinsic conductivity, show excellent structural stability and electrochemical performance, has wide application prospect in battery electrode material and electrocatalysis and other energy fields.

The utility model provides a guider which solves the technical problems that an existing guider needs a transverse incision at the achilles tendon broken end for guiding insertion, and sural nerves are affected. One end of the bent arm is connected with the handle, the other end of the bent arm is provided with a puncture tip, the puncture tip is provided with a guide ring hole, a first conduction channel is formed in the bent arm and communicated with the guide ring hole, a second conduction channel is formed in the handle, a strip-shaped hole is longitudinally formed in the handle, and a push groove is communicated with the second conduction channel. The second conduction channel is communicated with the first conduction channel, the guider is further provided with a push plate, the push plate is arranged in the second conduction channel, one end of the push plate penetrates through the strip-shaped hole and extends out of the handle, the other end of the push plate is connected with one end of a conduction wire, and the other end of the conduction wire sequentially penetrates through the second conduction channel and the first conduction channel to be connected with a threading ring; the initial position of the threading ring is arranged in the first conduction channel; the device can be widely applied to the technical field of medical instruments.

The invention discloses a magnetic field regulation and control magnesium-iron double-metal hydroxide ordered alkaline diaphragm and a preparation method thereof. Belongs to the technical field of alkaline water electrolysis hydrogen production. Aiming at the problems of disordered distribution of functional fillers and unsmooth ion conduction channels in the existing composite diaphragm, the invention provides a novel method for constructing an oriented structure under the assistance of a magnetic field. According to the method, in a polymer solution, magnesium chloride and ferric chloride are used as raw materials for in-situ synthesis of magnetic magnesium-iron double-metal hydroxides, blade coating and film forming are carried out on a substrate on which an external magnetic field in a specific direction is applied, magnetic field force is used for driving directional arrangement of the magnesium-iron double-metal hydroxides, and drying and curing are carried out to obtain the composite diaphragm. Through the process, a directional ion transmission channel penetrating in the thickness direction is successfully constructed in the diaphragm. The method is simple in process and remarkable in effect, the prepared diaphragm has excellent ionic conductivity and electrolysis performance, and a new thought is provided for preparation of the high-performance alkaline diaphragm.

The utility model discloses a diaphragm perforation repairing device for a flow battery, which relates to the technical field of battery diaphragm detection and comprises an operating platform, and a lower template is arranged above the operating platform; limiting groove assemblies are arranged at the four corners of the top of the lower die plate correspondingly. Each limiting groove assembly comprises a plurality of second square grooves distributed in a matrix shape. A film limiting frame is arranged above the lower mold plate, inserting columns are integrally formed at the four corners of the bottom of the film limiting frame, and the inserting columns are matched with the corresponding second square grooves; a first square groove is formed in the bottom end of the second square groove and penetrates through the bottom end of the lower die plate. According to the diaphragm perforation repairing device for the flow battery, by arranging the first square groove, the cover plate, the diaphragm limiting frame and other structures, positioning and repairing of battery diaphragms with different sizes and different thicknesses are met, the use flexibility of the repairing device is improved, heat can penetrate through the first square groove and is conducted to the diaphragm through the cover plate, namely, the first square groove, and a heat conduction channel is formed; the heat utilization efficiency is improved.