229 results about "Electrolytes fluids" patented technology

The invention relates to a liquid injection method and device, and the method comprises the following steps: fixing a to-be-injected battery above a liquid storage bin, and enabling a liquid injection nozzle to be communicated with a liquid inlet of the battery; performing negative pressure exhaust treatment on the battery; pressure is applied to the liquid storage bin at first pressure intensity, and the first pressure intensity is larger than the internal pressure intensity of the liquid storage bin, so that at least part of the electrolyte in the liquid storage bin is pressed into the battery through the liquid injection nozzle; and reducing the pressure after maintaining the pressure for a preset time. According to the liquid injection method of the battery, when pressure is not applied to the liquid storage bin, the electrolyte in the liquid storage bin cannot flow out of the liquid injection nozzle, the liquid dropping phenomenon is avoided, waste cannot be caused, and the environment cannot be polluted. And meanwhile, the pipeline structure can be optimized, and arrangement of a valve in the prior art is omitted. The liquid injection process is controlled by controlling the pressure of the liquid storage bin, and the liquid injection precision and the liquid injection yield can be improved.

The invention discloses a liquid level monitoring and alarming device and method for a flow battery. The liquid level monitoring alarm device of the flow battery comprises a liquid level detection module, a data analysis module and an alarm module, the liquid level detection module is arranged in a liquid storage device of the flow battery, and the liquid level detection module is used for monitoring the real-time liquid level of electrolyte in the liquid storage device and sending the real-time liquid level to the data analysis module; the data analysis module is used for generating different alarm signals and liquid supplementing prompt signals according to the real-time liquid level and sending the alarm signals and the liquid supplementing prompt signals to the alarm module; and the alarm module is used for generating corresponding alarm information according to the received alarm signal and generating corresponding liquid supplementing prompt information according to the received liquid supplementing prompt signal. According to the invention, the problem of insufficient liquid level of the electrolyte in the circulation and charge-discharge process of the liquid storage tank can be effectively solved, and the operation efficiency and management capability of the flow battery are improved.

The invention belongs to the technical field of safety monitoring of energy storage systems, and relates to a monitoring method and system for an all-vanadium redox flow battery with a safe liquid level. According to the technical scheme, the effective sectional area of a safe liquid storage tank is obtained, the quantitative volume is determined, and a theoretical liquid level response benchmark is established according to the ratio; counting the liquid level and conductance noise in the stable baseline section and generating a corresponding error boundary; performing quantitative injection and quantitative extraction active self-inspection on the interlayer, extracting injection / extraction liquid level response amplitude and return difference, and judging whether a monitoring link is healthy or not; and when the link is not healthy, the hidden inner leakage is judged by taking increment and continuity of conductance of the liquid collecting cavity relative to the base line as main evidence. Therefore, electrolyte invasion can still be reliably recognized under the working condition that the safe liquid level change is not obvious or even reverse double-fault covering is achieved, report omission is reduced, and monitoring reproducibility and engineering reliability are improved.

The utility model discloses a water heater which comprises a water tank, an electronic anode and an air power supply module. The air power supply module comprises a shell in which a liquid storage cavity is formed, and the liquid storage cavity is filled with electrolyte; a cathode film is arranged in the shell, the inner surface of the cathode film is in contact with the electrolyte, and the outer surface of the cathode film is configured to be in contact with air; the metal anode is arranged in the shell; the electrode assembly comprises a first electrode and a second electrode; wherein an exhaust hole is formed in the shell, and a waterproof breathable component is arranged on the exhaust hole; the waterproof breathable component comprises a first membrane and a second membrane, and the second membrane is arranged on the inner side of the first membrane; the first membrane is configured to prevent water in the liquid storage cavity from flowing out and allow gas in the liquid storage cavity to pass through and be exhausted. The service life of the air power supply module is longer under the condition that the current anti-corrosion requirement of the water heater is met, the replacement frequency of a user is reduced, and the use experience of the user is improved.

The utility model discloses a battery cell structure. The battery cell structure comprises a first pole piece, a first diaphragm and a plurality of supporting particles, the first pole piece is provided with a first bending area, the first diaphragm is attached to the first pole piece, and the first diaphragm is provided with a second bending area corresponding to the first bending area. The second bending area is coated with the multiple supporting particles, and gaps among the multiple supporting particles are used for containing electrolyte. Wherein the surface, facing the first diaphragm, of the first bending area is sunken to form a plurality of first grooves, and the first grooves are all used for containing electrolyte. Through the design of the supporting particles and the first grooves, the storage space of the electrolyte is increased at the bending part of the battery cell structure, so that the electrolyte retention effect at the corner of the battery cell is improved. Therefore, the battery cell structure provided by the utility model can provide enough electrolyte at the bending part for migration of the lithium ions, and the lithium ions are effectively separated from the positive electrode and embedded into the negative electrode, so that the lithium separation phenomenon is prevented.

The invention discloses a magnetic field auxiliary dry type electrochemical polishing device and method for the inner surface of a pipeline, and the device comprises a base which is provided with a double-sliding-block displacement table, and the double-sliding-block displacement table is provided with a lower sliding block and an upper sliding block; a motor clamp is arranged on the upper sliding block, a motor is arranged on the motor clamp, the motor is connected with an electrode clamp, and the electrode clamp clamps an electrode; a workpiece clamp is arranged on the lower sliding block, a workpiece is arranged on the workpiece clamp, a lower container is arranged below the workpiece, an annular magnet is arranged outside the workpiece in a surrounding mode, and an inner space formed by the workpiece and the lower container is filled with a solid medium. The electrode clamp is connected with the rotating end of the conductive slip ring, and the static end of the conductive slip ring is connected with the anode of the power supply through a wire. The magnetic field assists in regulating and controlling ion migration, dry type electrochemical polishing is achieved by combining the synergistic effect of the two electrodes, liquid electrolyte pollution is avoided, and the device has the advantages of being high in polishing uniformity, convenient and fast to operate and low in cost and is suitable for precise runner inner surface treatment of the additive manufacturing pipeline.

The invention discloses a compact tensile sample dynamic hydrogen charging test device and a test method. The compact tensile sample dynamic hydrogen charging test device comprises an electrochemical hydrogen charging device, a liquid carrying table, a compact tensile sample and a clamp, a CT sample penetrates through the liquid carrying table through the clamp and is fixed, and the electrochemical hydrogen charging device is connected with the liquid carrying table; and the whole CT sample and the clamp head are positioned in the columnar container and are immersed in the electrolyte of the columnar container. The problems of potential safety hazards, limited hydrogen filling content and hydrogen escape during hydrogen filling of the CT sample are solved; electrochemical hydrogen charging can be carried out while a fracture toughness test or a fatigue test is carried out, so that hydrogen overflow caused from hydrogen pre-charging to an experiment is effectively avoided, and potential safety hazards of experiment problems caused by a conventional hydrogen pre-charging experiment are also avoided; any hydrogen charging current density can be taken, after the surface area of a sample is measured, the hydrogen flux in the experiment process can be strictly controlled by adjusting the current of the direct-current power supply, the gradient hydrogen concentration is obtained by controlling the current and the hydrogen charging time, research is facilitated, and experiment parameters are accurate.

The invention relates to the technical field of hydrogen production, in particular to a mixed water electrolysis hydrogen production system and method with multiple types of electrolytic cells cooperatively operated. The mixed electrolysis unit is composed of an alkaline electrolytic cell array and an anion exchange membrane electrolytic cell array, and the two arrays are connected into a hydrogen purification system in parallel through a multi-channel gas-liquid separator; the intelligent power supply module is electrically connected with the electrolysis unit, has a dynamic voltage regulation function, outputs a voltage range of 20-100V, and is integrated with a harmonic suppression circuit; the multi-dimensional sensing network comprises a distributed temperature sensor array embedded in an electrolytic bath pole plate, a multi-phase pressure detection unit of an electrolyte circulating pipeline and a laser gas analyzer of a hydrogen production pipeline; according to the scheme, the novel hydrogen production system capable of achieving efficient cooperation of multiple types of electrolytic cells and dynamically optimizing current distribution is provided, and the technical problem that wide-range load adaptability and operation energy efficiency are difficult to achieve at the same time is fundamentally solved.

The utility model discloses a backflow liquid feeding system of a crude foil engine, which comprises a liquid feeding cavity, and liquid feeding branch pipelines are arranged at the side part of the liquid feeding cavity; the liquid feeding main pipeline is used for communicating the liquid feeding cavity with an electrolyte filtering system; the device further comprises two valve pipelines which are communicated with the liquid feeding cavity, a sewage discharging valve and a liquid discharging valve are installed on the two valve pipelines respectively, and the sewage discharging valve and the liquid discharging valve are connected with a sewage discharging pipeline and a liquid discharging pipeline respectively. The upper liquid backflow pipeline is arranged on the side wall of the valve pipeline, the side wall of the valve pipeline is communicated with the upper liquid main pipeline, and the bypass upper liquid backflow pipeline is arranged on the side portion of the valve pipeline, so that part of liquid in the upper liquid main pipeline is conveyed to the valve pipeline through the upper liquid backflow pipeline, and electrolyte in the valve pipeline is in a flowing state; the crystallization phenomenon is reduced and eradicated, and the production efficiency is improved.

The present invention discloses an electrolyte floating stirring device, which belongs to the technical field of stirring equipment, including a liquid storage tank, wherein a lower-layer electrolyte lifting component is provided inside the liquid storage tank, and the lower-layer electrolyte lifting component includes a column, the lower end of the column is connected to the inner cavity of the liquid storage tank, and the upper end of the column is provided with a lifting cavity, and the internal rotation of the column is connected to an auger blade 1. The present invention rotates the auger blade 1 and the auger blade 2, and the auger blade 1 rotates to lift the lower layer of electrolyte to the inside of the lifting cavity, and then evenly guides it to the inside of a mixing box through multiple guide tubes 1. At the same time, the auger blade 2 can lift the upper layer of electrolyte to the inside of the mixing box. At this time, the upper and lower layers of electrolyte are mixed and stirred inside the mixing box, and the mixed electrolyte in the mixing box can be guided to the middle layer of electrolyte through the guide tube 2, thereby achieving sufficient stirring of the upper, middle and lower layers of electrolyte.

The application discloses a membrane-free liquid flow battery desalination device and method based on gravity stratification. The device comprises an upper-layer reduction reaction chamber, a middle-layer desalination chamber and a lower-layer oxidation reaction chamber. A stable three-layer liquid area is formed by using the density difference and the oil-water insolubility to replace the ion exchange membrane with the oil-water interface. The lower layer is an anode electrolyte with a density greater than water, the upper layer is a cathode electrolyte with a density less than water, and the middle layer is brine to be desalinated. After a voltage is applied, the oxidation-reduction reaction drives the migration of cations to the upper layer and the migration of anions to the lower layer, thereby realizing efficient desalination of brine. The application is membrane-free, low-cost, high-efficiency and stable in operation, and is suitable for scenes such as seawater desalination, brackish water desalination and high-salt wastewater treatment.

The utility model discloses an electrolytic bath assembly for wet purification, which comprises a bath body, a measuring assembly is mounted on the top wall of the bath body, and a ventilation assembly is mounted on the top wall of the measuring assembly. According to the electrolytic bath assembly for wet purification, electrolyte is injected into the feeding hopper and enters the bath body through the feeding pipe, the liquid level is gradually increased, the floating block floats on the electrolyte level and drives the measuring rod to rise, the position of a scale line is observed, and when the distance between the distance sensor and the circular baffle is at the low position, the middle position and the high position, the measuring rod is driven to rise. When electrolyte or other solutions are injected into the electrolytic bath, the green lamp, the yellow lamp and the red lamp are turned on, and whether the height of the liquid level in the bath body is in a safe state or not can be clearly known through the color of the warning lamp, so that when the electrolyte or other solutions are injected into the electrolytic bath, the change of the internal liquid level can be visually observed from the outside; and when the light is not clear, whether the internal liquid level is in a safe state can be known.

The utility model provides a reinforced frame which comprises a front frame body, a rear frame body arranged at the rear end of the front frame body, a bottom plate arranged at the bottom end in the rear frame body, a bearing plate arranged at the top end of the bottom plate, a protection piece arranged on one outer side wall of the rear frame body and protection lines arranged on the two sides of the protection piece and located on the two outer side walls of the rear frame body. The horizontal piece is arranged on the side wall, away from the front frame, of the bearing plate. Through the arranged horizontal piece and the alarm piece, a microelectrode composed of a zinc sheet, electrolyte in a liquid bubble ball and a copper sheet can restore rust to achieve the anti-rust effect, a spring set has the damping and buffering effect, and when the whole gravity center of a vehicle article and the gravity center of a vehicle frame are shifted due to the fact that the transported article is placed irregularly, the vehicle article can be warned; a liquid bubble ball worker needs to adjust the article placing position to enable the gravity center to return to the center of the frame, toppling in the driving or turning process is prevented, the protection lines on the two sides of the rear frame play a protection and warning role, and the alarm automatically sends out a signal.

The invention discloses a sodium ion battery electrolyte cyclic regeneration device which comprises a mixing tank and further comprises a cleaning tank and a cross beam, the cleaning tank is located on one side of the mixing tank, the cross beam is located above the cleaning tank and the mixing tank, and the bottom of the cross beam is connected with a sliding frame. According to the invention, the cross beam, the sliding frame, the lifting frame, the upper cover, the rotating column, the transmission arm, the transmission box, the connecting rod, the stirring impeller and the cleaning tank are arranged, so that a stirring structure formed by the transmission arm, the transmission box and the stirring impeller can leave the stirring tank, and attachments on the stirring structure can be conveniently cleaned (washed, polished and the like) by workers from the outside; the cleaned stirring structure is transferred into the cleaning tank, and the cleaning liquid in the cleaning tank can soak the stirring structure, so that attachments on the stirring structure are conveniently and thoroughly softened and removed, and the attachments on the stirring structure are cleaned more thoroughly. Compared with the prior art, the cleaning mode of the stirring structure has the advantages that the difficulty of cleaning treatment is greatly reduced, and the cleaning is more thorough.

1. Name of the product in this design: Storage tank. 2. Purpose of this design: For storing liquids such as electrolyte and water. 3. The key design feature of this product is its shape. 4. The picture or photo that best illustrates the key design points: Design 1 3D diagram 1. 5. Design 1 is designated as the basic design.

The present invention relates to the field of micro-machining technology, and in particular, provides an ultrasonic vibration internal liquid electrochemical discharge grinding processing device and a tool changing method. The method includes a processing device including an old tool holder, a new tool holder, an electric spindle, a spindle clamp, an auxiliary electrode, a processing workpiece, an electrolyte tank, a Hall current sensor, an automatic tool changing device; an ultrasonic generator, a frequency converter, a high-frequency pulse power supply, a data acquisition device, an external liquid supply device, a programmable frequency converter, a tool changing operating system, and a position control system; wherein the tool holder includes a primary coil, a secondary coil, an ultrasonic transducer, a rotary liquid joint, and a tool electrode. The processing device integrates the three technologies of ultrasonic vibration, mechanical grinding, and external rotation and internal liquid through the ultrasonic transducer, the tool electrode, and the external liquid supply device. While ensuring processing efficiency, it improves the continuity and stability of processing, improves processing quality, and achieves high-quality, high-efficiency, and low-cost processing of processing materials.

The invention discloses a metal organic conjugated polymer material Zn-MOF, a synthesis method thereof and application of the metal organic conjugated polymer material Zn-MOF in a sodium metal battery. Research results show that the material has relatively high actual discharge capacity (400 mAh g <-1 >), and can stably circulate for 300 circles in a sodium metal battery. Sodium ions can be efficiently and reversibly combined / separated through a specific two-dimensional net structure and rich active sites, and the Zn-MOF material shows a relatively high capacity retention ratio. The material effectively solves the problems of structural collapse and low capacity of a traditional inorganic layered material in the circulation process, and is not easy to dissolve in a liquid electrolyte. The sodium metal battery taking the Zn-MOF material as a negative electrode can still show relatively high discharge capacity and cycling stability even if the sodium metal battery runs under high current density.

This utility model discloses a cell cover, a cell, a battery pack, and a vehicle. The cell cover includes a cover body with a liquid replenishment chamber containing electrolyte. A liquid outlet is provided on the cover body, communicating with the liquid replenishment chamber. When the cell cover is placed on the cell housing, the liquid outlet communicates with the housing cavity of the cell housing. A slow-release membrane is provided on the cover body at the liquid outlet. The slow-release membrane has a sealed state and a slow-release state. In the sealed state, the slow-release membrane seals the liquid outlet, preventing electrolyte outflow. In the slow-release state, the electrolyte flows out through the slow-release membrane from the liquid outlet. In this embodiment, after the cell has undergone long-term cyclic operation, i.e., after the electrolyte in the cell housing is gradually consumed, the electrolyte flows out through the slow-release membrane in the slow-release state from the liquid outlet back into the cell housing, replenishing the electrolyte and compensating for the electrolyte consumption during cell use.

This invention discloses an anodizing process and apparatus for the inner wall of a metal container, relating to the field of metal surface treatment technology. The apparatus includes a cathode and a circulation system; the cathode is inserted into the inner cavity of the metal container through an opening; the circulation system includes at least a circulation pump and an inlet pipe, the outlet of which is configured to be positioned at the bottom of the container's inner cavity; wherein the opening of the metal container is configured as an overflow outlet for the electrolyte. This invention, through forced circulation, allows the electrolyte to enter from the bottom and exit from the top of the container, forming a flow pattern of bottom inlet and top overflow. This effectively improves the flow field distribution within the container cavity, promptly removes reaction heat and discharges oxidizing gases, significantly improving the uniformity and density of the anodized film on the inner wall and reducing film defects.

The utility model relates to the technical field of batteries, in particular to a liquid injection nozzle which comprises a liquid injection nozzle body and an arched diaphragm, the liquid injection nozzle body is provided with a liquid injection channel from an inlet to an outlet, the arched diaphragm is arranged in the liquid injection channel and seals the liquid injection channel, the arched diaphragm is provided with a liquid outlet hole capable of being opened and closed, and the arched diaphragm protrudes from the outlet to the inlet side. According to the liquid injection nozzle provided by the utility model, on the basis of ensuring simple, convenient and feasible process manufacturing, residual electrolyte is prevented from dripping to pollute a battery after liquid injection is finished, and the phenomenon that the inner cavity of the liquid injection nozzle is broken to block the liquid injection opening due to stress concentration is avoided.

The utility model discloses a kind of sodium ion battery processing electrolyte filling mechanism, including workbench and liquid storage tank, the upper surface of the liquid storage tank is fixedly installed on workbench, the upper surface of the liquid storage tank is connected with liquid inlet pipe, the upper surface of the workbench is fixedly installed with liquid pump, the water inlet of the liquid pump is fixedly installed with liquid suction pipe, the bottom end of the liquid suction pipe is connected with the bottom of liquid storage tank, the water outlet of the liquid pump is fixedly installed with liquid pipe.The utility model, by being set up the cooperation of workbench, liquid storage tank, liquid pump, liquid suction pipe, liquid pipe, valve, extension pipe, liquid storage grid, liquid outlet pipe and liquid outlet head component, the function of replacing liquid outlet head quickly and conveniently is realized, the installation mode of the liquid outlet head in existing device is improved, so that when liquid outlet head is blocked or damaged, liquid outlet head can be quickly replaced, the processing efficiency of sodium ion battery is improved.

The utility model provides automatic production equipment for preparing nano carbon sol, which relates to the technical field of nano carbon sol and comprises an electrolyte storage tank, a closed floating plate is movably connected in the electrolyte storage tank, a pull rope is fixedly mounted at the top end of the closed floating plate, and a pull plate is fixedly mounted at the top end of the pull rope. Compared with the prior art, the electrolyte tank has the advantages that the liquid level detection structure is arranged in the electrolyte tank prepared from the nano carbon sol, the storage structure capable of supplementing the electrolyte tank along with liquid level detection is arranged, the floating plate pressure structure for detecting the liquid level is arranged in the storage structure, and the height of the floating plate is controlled according to the height of the liquid level; the pressure structure is influenced by the gravity and buoyancy of the floating plate, and early warning prompt is carried out in time according to a detected pressure signal, so that a worker is effectively prompted to supplement the electrolyte, the stability of the residual amount in the electrolyte production process is ensured, and the safety and stability of preparation and generation of the nano carbon sol are improved.

This application provides a cell formation venting method, apparatus, and system. The method is applied to a cell formation venting device including a negative pressure regulating device, a detection and control device, and at least one negative pressure cup. The method includes: acquiring the liquid level height of each negative pressure cup in real time; determining whether there is a target negative pressure cup with a liquid level height higher than a first preset liquid level height among the multiple negative pressure cups; if there is a target negative pressure cup with a liquid level height higher than the first preset liquid level height among the multiple negative pressure cups, then executing a target venting strategy on the target charging cell corresponding to the target negative pressure cup; wherein, the target venting strategy includes: controlling the target charging cell to pause charging, and using a preset frequency to control the negative pressure ratio of the negative pressure regulating device to switch between an initial negative pressure ratio and an adjusted negative pressure ratio; the initial negative pressure ratio is used to drive the electrolyte to be drawn into the target negative pressure cup, and the adjusted negative pressure ratio is used to drive the electrolyte to flow back to the target charging cell.

The utility model relates to the field of flow batteries, in particular to a flow frame of a side liquid inlet runner, which comprises a plate body, a hollow groove structure is arranged in the middle of the plate body, a liquid inlet runner and a liquid outlet runner are arranged on the plate surface of the plate body, the liquid inlet runner is communicated with the hollow groove structure and one side edge of the plate body, and the liquid outlet runner is communicated with the hollow groove structure and one side edge of the plate body. Compared with the prior art, the electrode plate has the beneficial effects that the hollow groove structure is communicated with the edge of one side of the plate body through the liquid flow channel, and the hollow groove structure is communicated with the edge of one side of the plate body through the liquid outlet flow channel, so that a side liquid inlet mode is realized, namely electrolyte of each electrode forms independent circulation and does not influence each other; and the condition that electrolyte in a plurality of electrodes is interrupted at the same time due to channel blockage in the prior art is greatly avoided.

The utility model discloses a liquid injection hole cleaning device which comprises a rack. The cleaning structure is mounted on the rack and comprises a driving mechanism and a cleaning brush, and the cleaning brush is used for cleaning the battery cell located below under the driving of the driving mechanism; the protection structure is connected to the cleaning structure and / or the rack and comprises an outer mounting body and an inner protection cover, and the inner protection cover is arranged on the outer mounting body in a penetrating mode and used for allowing the battery cell to penetrate, so that at least part of the main body can be covered with the inner protection cover, and the pole columns can be completely exposed; and the splashing electrolyte is blocked by the outer mounting body. According to the liquid injection hole cleaning device disclosed by the utility model, electrolyte thrown out by the cleaning brush can be blocked, so that the electrolyte is prevented from being thrown to the side wall surface of a battery cell, and the effect of protecting the battery cell is achieved.

An electrolyzer includes a plurality of vertically stacked electrolysis cells, with one or more electrolyte supply tubes adjacent to said plurality of electrolysis cells and having a plurality of fluid outlets configured to discharge an electrolyte solution from said one or more electrolyte supply tubes to each of said plurality of electrolysis cells. Each of the cells is provided with one or more drain assemblies, each drain assembly comprising a drain basin equipped, with a drain valve, such that some or all drain valves in a given set of assemblies are engaged by a. common control member configured and operable to actuate each of the drain valves between a closed and an open position. A plurality of electrodes is connectable to one or more electrical power sources and configured to pass electric current through the electrolyte solution introduced into said electrolysis cells via said outlets.

A cathode gun sputtering device belongs to the technical field of material surface treatment equipment and comprises a movable base, a liquid storage tank is fixedly mounted on the upper surface of the movable base, a clear water tank and an electrolyte tank are arranged in the liquid storage tank, mounting space is reserved between the liquid storage tank and the upper surface of the movable base, and a mounting groove is formed in the upper surface of the movable base in a penetrating manner. A carrier plate with the position capable of being adjusted in a sliding mode is installed in the installation groove, a circulating pump is fixedly installed on the upper surface of the carrier plate, the liquid inlet end of the circulating pump is connected with a liquid inlet pipe, the liquid discharging end of the circulating pump is connected with a liquid discharging pipe, and the liquid discharging end of the liquid discharging pipe is fixedly connected with a cathode gun body; according to the cathode gun moving device, the overall moving convenience of the device can be remarkably improved, the complexity of cooperative moving of all the components is effectively reduced, the adaptability and flexibility of the device to different application environments are further enhanced, and the cathode gun moving device can better meet diversified working condition requirements.

The utility model discloses a gas-liquid separator for a battery assembly, which belongs to the technical field of battery assemblies and comprises a shell, a first channel and a second channel which are communicated with each other are formed in the shell, and the first channel extends in the height direction; the separation membrane is arranged at one end of the first channel and is suitable for gas to pass through; wherein the second channel is arranged between the separation membrane and the other end of the first channel, and the electrolyte is suitable for entering from the second channel and being discharged from the other end of the first channel. According to the gas-liquid separator designed by the utility model, gas-liquid separation can be carried out when electrolyte mixed with hydrogen enters the first channel, and media such as water carried by the hydrogen are blocked by the separation membrane, so that the media such as the water are prevented from being taken away when the hydrogen is discharged, and the electrical performance index of a single battery is improved, so that the electrical performance index of an aluminum alkali liquor flow battery assembly is improved; meanwhile, the gas-liquid separator is simple in structure, small in size, simple in manufacturing process and high in installation efficiency.

This invention provides a corrosion-resistant, low-friction protective coating, its preparation method, and its application, relating to the field of medical implant protective materials. The invention involves micro-arc oxidation of a titanium alloy substrate to form a micro-arc oxidation layer on the substrate surface. The electrolyte used in the micro-arc oxidation comprises the following components at concentrations: sodium phosphate 5-30 g / L, sodium silicate 5-30 g / L, sodium hydroxide 1-5 g / L, with the balance being water. Using a transition metal diboride as the target material, magnetron sputtering is performed on the surface of the micro-arc oxidation layer to obtain the corrosion-resistant, low-friction protective coating. The protective coating prepared by this invention exhibits excellent corrosion resistance in simulated body fluid environments, effectively adsorbing proteins in the body fluid and utilizing the lubricating function of proteins, thereby reducing the coefficient of friction between the coating and the friction pair, achieving a low wear rate. Furthermore, it possesses good biocompatibility, facilitating cell adsorption and growth.

The application provides an electrolyte storage tank, comprising a tank body, the inside of the tank body being suitable for storing tank electrolyte and backflow electrolyte in an electric pile; a jet circulation device, the jet circulation device comprising a backflow pipe in communication with the tank body, one or more liquid outlet pipes in communication with the backflow pipe, and a nozzle in communication with at least one liquid outlet pipe, wherein the nozzle comprises a backflow inlet, a backflow outlet, a jetting port and a jetting outlet, the liquid outlet pipe is in communication with the backflow inlet, and the backflow electrolyte inside the liquid outlet pipe is suitable for being jetted out of the nozzle after sequentially passing through the backflow inlet, the backflow outlet, the jetting port and the jetting outlet, wherein the inner diameter of the backflow inlet is larger than the inner diameter of the backflow outlet, and the inner diameter of the jetting outlet is larger than the inner diameter of the jetting port. The electrolyte storage tank provided by the application can realize rapid and uniform mixing of large-capacity electrolyte in the tank, and can further improve the operation efficiency and safety of the battery.