45 results about "Electrolytes levels" patented technology

The invention discloses an all-vanadium redox flow battery positive and negative electrode storage tank liquid level automatic balance control device which comprises a positive electrode electrolyte storage tank, a negative electrode electrolyte storage tank and a galvanic pile, a first circulation loop is formed between the positive electrode electrolyte storage tank and the galvanic pile, and a second circulation loop is formed between the negative electrode electrolyte storage tank and the galvanic pile. Venturi tubes are arranged on the positive electrode electrolyte return pipeline and the negative electrode electrolyte return pipeline, liquid pumping holes of the Venturi tubes are communicated with the negative electrode electrolyte storage tank and the positive electrode electrolyte storage tank through an electrolyte pumping pipeline, and a liquid level monitoring device is arranged on the electrolyte pumping pipeline. The venturi tube is communicated with the electrolyte suction pipeline, and redundant electrolyte in one electrolyte storage tank is sucked into the other electrolyte storage tank by means of pressure difference generated by the venturi tube, so that the design of the positive and negative electrolyte storage tanks is not limited by the relative height of the electrolyte level, and the space of the storage tanks can be fully utilized; the integration level of the battery system is improved, and the occupied area is reduced.

The utility model provides an electrolyte level monitoring device for a lead-acid storage battery, which belongs to the technical field of electrolyte monitoring and comprises a shell, a measuring tube and a cut-off sleeve. A battery assembly is stored in the shell; a through hole is formed in the shell; the bottom end of the through hole is communicated with an inner cavity of the battery assembly; a ventilation opening is formed in the shell and is used for enabling the air pressure in the battery assembly to be the same as that of the outside when electrolyte monitoring is carried out. The measuring tube is detachably connected to the shell, the two ends of the measuring tube are open, and the measuring tube is matched with the through hole in an inserted mode to be used for extracting electrolyte in the battery assembly. The cut-off sleeve is installed at the top end of the measuring tube and used for blocking or opening the top end of the measuring tube. And the top end of the measuring tube is blocked by a cut-off sleeve for taking out the electrolyte from the battery assembly. The electrolyte level monitoring device for the lead-acid storage battery provided by the utility model is simple to operate, low in cost and capable of realizing comprehensive detection on the electrolyte.

The utility model discloses a hand-push type electrolytic cell two-level measuring device, which is used for measuring the lengths of residual aluminum liquid and electrolyte on a liquid level probe so as to obtain the aluminum level and electrolyte level data in an electrolytic cell, and comprises a cart body, a limiting groove of the liquid level probe is arranged on one side of a table board of the cart body, and the limiting groove is arranged on the table board of the cart body. A measuring scale is arranged on one side of the limiting groove; according to the utility model, the lengths of residual molten aluminum and electrolyte on the liquid level probe can be safely measured, and the data of the aluminum level and the electrolyte level in the electrolytic cell can be mastered.

This invention relates to the field of battery technology, specifically disclosing an electrolyte density adjustment device for a flooded lead-acid battery. The device includes a valve body with a level sensor A, a level sensor B, and a density sensor connected to it. Level sensor A and level sensor B are used to monitor high and low electrolyte levels, respectively. A water injection pipe is connected to the valve body, one end of which is connected to a storage tank for storing pure water. A first solenoid valve is installed in the water path between the water injection pipe and the storage tank. The first solenoid valve, level sensor A, level sensor B, and density sensor are electrically connected to a controller. The valve body is cylindrical in shape, with a locking block at the top and a sealing groove on its outer surface containing a sealing ring. Compared to existing technologies, this invention ensures a stable electrolyte concentration and maintains a normal chemical reaction environment while adding pure water, which is beneficial to the battery's discharge performance and lifespan.

The utility model relates to the technical field of electrolytic fluorine production, in particular to a device for measuring the acidity of electrolyte in a fluorine-making electrolytic bath, which comprises the fluorine-making electrolytic bath, an electrolytic protective sleeve, a potential protective sleeve, two acidity measuring electrodes, a signal converter and a fastener, the fluorine-making electrolytic cell is installed at the electrolytic material adding port, the upper ends of the electrolytic protective sleeve, the potential protective sleeve and the two acidity measuring electrodes are fixed above the fluorine-making electrolytic cell through fasteners, the fluorine-making electrolytic cell is filled with electrolyte, and the lower ends of the acidity measuring electrodes and the potential protective sleeve are immersed below the electrolyte level. The potential protection sleeves are arranged on the inner sides of the acidity measuring electrodes, the upper ends of the acidity measuring electrodes are protected by the electrolysis protection sleeves, the signal converter is connected between the two acidity measuring electrodes through the electrode connecting wire, and the signal converter is positioned above the fluorine-making electrolytic bath. The device is safe, environment-friendly, continuous and reliable in measurement of the acidity of the electrolyte in the fluorine-making electrolytic cell.

The aluminum electrolysis starting system and method are used for starting an aluminum electrolysis system comprising at least one aluminum electrolysis cell, and aluminum electrolysis starting equipment is arranged in the aluminum electrolysis cell prefilled with electrolyte powder and used for starting the aluminum electrolysis cell. The control equipment is used for controlling the aluminum electrolysis starting equipment; the shunt is connected in parallel with the aluminum electrolysis cell and is used for adjusting the current passing through the aluminum electrolysis cell by adjusting the resistance of the shunt during starting; the two-man ladle molten salt furnace is used for filling molten mass into the aluminum electrolysis cell in the later starting period of the aluminum electrolysis cell, and after the electrolyte liquid level reaches the designed height, the heaters are sequentially replaced with anodes. The device is suitable for starting by a dry-wet combination method, electrolyte powder is directly melted in the aluminum electrolysis cell, the heater enables the temperature of the whole aluminum electrolysis cell to be more uniform when the aluminum electrolysis cell is started, the electrolyte melted by the two-man ladle molten salt furnace is filled, the level of liquid electrolyte in the electrolysis cell meets the requirement, and therefore more efficient and ideal starting of the aluminum electrolysis cell is achieved.

This utility model is entitled "A Tooling for Quickly Confirming the Consistency of Electrolyte Level in a Storage Battery." It belongs to the field of lead-acid battery technology. Its main purpose is to solve the problem of significant deviations in the electrolyte level height after adding acid in existing manual methods. Its main features are: the first and second triangular prism bodies share a common edge, and the adjacent faces of the first and second triangular prism bodies are located on the same plane; the included angle between the other faces of the first and second triangular prism bodies adjacent to the common edge is consistent with the included angle between the side and bottom surfaces of the battery. This utility model features a simple structure, ease of use, and the ability to quickly and accurately detect the consistency of electrolyte level height in all six cells of a storage battery after adding acid. It is mainly used for detecting and adjusting the consistency of electrolyte level height after adding acid, ensuring consistency in the formation process and battery performance.

The invention provides a high-strength and high-modulus carbon fiber treatment device and process, and relates to the technical field of carbon fiber surface treatment.The high-strength and high-modulus carbon fiber treatment device comprises two U-shaped sliding rods fixedly installed on the inner wall surfaces of the two sides of a pool body respectively, a strip-shaped plate is slidably connected between every two U-shaped sliding rods, and two rotating shafts are rotatably connected between every two strip-shaped plates; by means of the adjusting device, the up-down positions of the guide rollers can be flexibly adjusted, synchronous adjustment can be achieved according to rising and falling of the electrolyte liquid level, when the liquid level falls, the guide rollers are driven to move downwards through linkage of a threaded rod, a movable plate and a hinged plate, and the guide rollers are driven to move downwards; the carbon fiber is always fully immersed in the electrolyte, so that the problem of insufficient oxidation after the liquid level drops due to fixation of the guide roller of the existing device is thoroughly solved, and the qualified rate of surface treatment of the carbon fiber is effectively improved.

The utility model relates to electrolytic bath liquid level adjusting technical field, and disclose a kind of stainless steel electrolytic bath liquid level regulating device, including electrolytic bath, the electrolytic bath inside fixedly connected with baffle, the baffle is equipped with through slot, the baffle inside slidingly connected with overflow plate, the adjusting mechanism is provided on the electrolytic bath, the adjusting mechanism includes U-shaped plate, the U-shaped plate is fixedly connected in electrolytic bath top, the U-shaped plate inside is provided with control panel. Through the design of adjusting mechanism, baffle is isolated into two independent spaces, overflow height is flexibly adjusted by controlling the height position of overflow plate, relative to constant overflow height, more can match the electrolyte use requirement of different depth, and on this basis, when needing to improve electrolyte level height, still can be input into the electrolysis area in electrolytic bath by submersible pump to re-input the electrolyte overflowed in electrolysis area, improve the utilization efficiency of resources.

Embodiments of the inventive concept include an interstitial fluid capture device configured to capture an interstitial fluid sample from the mouth of a user, an electrolyte measurement kit including the device, and a method for measuring electrolyte levels using the device. An exemplary device includes a main body portion configured for placement in the mouth of a user, the main body portion including a reservoir containing a hypertonic solution and having an opening that is sealed by a semipermeable membrane that permits a sample of interstitial fluid from the mouth of the user to be drawn through the membrane and into the solution reservoir. Various analyses may be performed on the captured interstitial fluid sample after removal of the device, including but not limited to, the assessment of one or more electrolyte levels through the use of various test strips or other techniques.

This invention discloses a lithium battery formation buffer cup, including a shell with connection holes at the top and bottom. A sealed cavity communicating with the connection holes is located inside the shell. A movable baffle, movable along the axial direction of the shell, is located within the cavity. The movable baffle has at least one through hole, and its projection at the bottom of the shell completely overlaps with the bottom cross-section of the buffer cup shell. In this invention, the movable baffle can move vertically according to changes in the liquid level in the buffer cup. When the negative pressure changes drastically, it can stop the electrolyte from being rapidly drawn away, i.e., from the cell connection hole to the manifold connection hole. When the liquid level in the buffer cup rises, the movable baffle remains above the electrolyte level, preventing the formation of large bubbles and preventing large bubbles from bursting and carrying electrolyte droplets into the manifold under negative pressure, thus reducing electrolyte loss during the cell formation process.

The utility model relates to the technical field of electrophoresis, in particular to an electrophoresis tank liquid circulation system which comprises an electrophoresis tank box body and a cleaning mechanism, a rotating pipe is arranged at the bottom end of the electrophoresis tank box, the bottom end of the rotating pipe extends to the outside of the bottom end of the electrophoresis tank box and is connected with a connecting pipe, the other end of the connecting pipe is connected with a filtering mechanism on the side wall of the electrophoresis tank box through a circulating pump, and the cleaning mechanism comprises a sealing plate, a collecting box, a backflow pipe and an air supply pipe. Bubbles generated during electrophoresis of electrolyte in the electrophoresis tank box body are conveniently cleaned through the cleaning mechanism, the bubbles are prevented from interfering with normal electrophoresis work, the electrophoresis quality is improved, the cleaning mechanism can be correspondingly adjusted along with the change of the liquid level of the electrolyte in the electrophoresis tank box body, and the application range is wider.

In an aspect, provided is an alkaline rechargeable battery comprising: i) a battery container sealed against the release of gas up to at least a threshold gas pressure, ii) a volume of an aqueous alkaline electrolyte at least partially filling the container to au electrolyte level; iii) a positive electrode containing positive active material and at least partially submerged in the electrolyte, iv) an iron negative electrode at least partially submerged in the electrolyte, the iron negative electrode comprising iron active material; v) a separator at least partially submerged in the electrolyte provided between the positive electrode and the negative electrode; vi) an auxiliary oxygen gas recombination electrode electrically connected to the iron negative electrode by a first electronic component, ionically connected to the electrolyte by a first some pathway, and exposed to a gas headspace above the electrolyte level by a first gas pathway.

The present invention relates to a high-performance zinc-bromine double-flow battery and an operation method, and belongs to the field of flow batteries. During the continuous operation of the zinc-bromine double-flow battery, the volume of the positive and negative electrolyte storage tanks is designed to be different, the concentration of active substances in the two-stage electrolyte is different, the concentration of the negative electrode active substance is always greater than the concentration of the positive electrode active substance, and the electrolyte undergoes a water migration process from the positive electrode to the negative electrode inside the battery stack. The liquid level of the negative electrode storage tank rises, causing the negative electrode electrolyte to flow to the positive electrode through a connecting pipe to ensure that the liquid levels of the positive and negative electrode electrolytes are the same. Keep the battery balanced. During this process, there is no loss of charged bromine element, so the positive electrode capacity of the battery is almost not attenuated. Because the volume of the positive electrode electrolyte is always greater than the volume of the negative electrode electrolyte. The bromine concentration in the positive electrode complex state is relatively low, the electrolyte phase separation is relatively not serious, the activity of the active substance in the positive electrode charge state is improved, and the battery stack performance is improved. This method significantly improves the battery stack performance.

The invention discloses a treatment device for photovoltaic device production, and belongs to the field of electrochemical devices.The treatment device for photovoltaic device production comprises a working groove and a conducting rod, the conducting rod is fixedly connected with a hook used for hooking a workpiece, and a hollow disc is fixedly connected with a plurality of connecting rods; by arranging the hollow disc and the inclined plates fixedly connected to the hollow disc, when the hollow disc drives the inclined plates to rotate, the electrolyte in the working groove can be pushed and disturbed, so that the concentration of the electrolyte is uniform, the working efficiency is improved, and the service life of the electrolyte is prolonged. The electrolyte in the working tank circularly flows by arranging the piston cylinder, so that the concentration of the electrolyte in the working tank is uniform, reactants scraped from the cathode can be removed, and the electrolyte in the working tank can be automatically supplemented when the liquid level of the electrolyte in the working tank is lowered by arranging the electromagnetic valve.

The present invention relates to the technical field of aluminum electrolysis parameter measurement. Disclosed is a two-level and cathode voltage drop calculation method for an aluminum electrolysis cell. Voltage signal data and displacement signal data are collected and stored in arrays; the data is preprocessed; a trigger condition for an air and electrolyte interface and a trigger condition for an electrolyte and aluminum liquid interface are set; for each group of data in the arrays, an electrolyte level and an aluminum level are calculated and rationality determination is performed; and average values are taken as final values. The present invention achieves unmanned measurement of process parameters such as aluminum electrolysis cell electrolyte and aluminum liquid heights and cathode voltage drop, thereby improving the automation and intelligence level of the electrolysis process, reducing the risks and costs of manual measurement, and improving testing efficiency and accuracy.

The embodiment of the present disclosure provides a kind of aluminum electrolytic cell molten aluminum fluctuation, two level and electrolyte temperature measurement method, belong to the field of computing technology, specifically include: by target yolo-v5 model identification target aluminum electrolytic cell flame hole in picture, obtain in pixel coordinate system flame hole center point coordinate and the vertex coordinate of anchor frame;According to the vertex coordinate of anchor frame, judge whether the opening degree of flame hole is normal;With flame hole center point coordinate as target, drive measuring rod inserts into flame hole mouth;According to the time when measuring rod enters different interface according to different stress;According to the time when measuring rod enters different interface, calculate the electrolyte level data and molten aluminum level data of target aluminum electrolytic cell;After measuring rod touches bottom and stays reach preset time, measure the electrolyte temperature data in target aluminum electrolytic cell;According to moment data, calculate the molten aluminum fluctuation of target aluminum electrolytic cell in preset period.The scheme of the present disclosure improves the measurement accuracy and adaptability of aluminum electrolytic cell.

An exemplary embodiment of the present disclosure provides a device for monitoring salivary electrolytes. The device can include a control circuit, a sensor coupled to the control circuit, and a biocompatible body configured to be inserted into a mouth of a user. The biocompatible body can be configured to house the control circuit and the sensor, and the sensor can be configured to receive saliva from the user and measure an electrolyte level present in the saliva.

The present invention provides an electrolyte level regulating device for a copper electrolytic cell, which is not only convenient to adjust but also has stable liquid level control. The inner tube and the outer tube are in two position states: a low liquid level control position corresponding to a mutually meshed embedded state by the convex and concave parts in the up and down directions and a high liquid level control position corresponding to the misaligned matching. The upper tube end of the combined tube formed by the convex and concave parts between the inner tube and the outer tube is in a low position, thereby forming a low position of the liquid level control position. Correspondingly, when the convex and concave parts between the inner tube and the outer tube are misaligned, the upper tube end of the combined tube formed by the inner tube and the outer tube is in a high position, thereby forming a high position of the liquid level control position. The high and low liquid levels of the electrolytic cell are extremely convenient to adjust, and no matter whether it is a low liquid level control position or a high liquid level control position, there is no asymmetric external force acting in the circumferential direction of the inner tube and the outer tube, that is, the relative position of the inner tube and the outer tube in the circumferential direction is stable, so the control of the liquid level height of the present invention is also necessarily accurate.

In an aspect, provided is an alkaline rechargeable battery comprising: i) a battery container sealed against the release of gas up to at least a threshold gas pressure, ii) a volume of an aqueous alkaline electrolyte at least partially filling the container to au electrolyte level; iii) a positive electrode containing positive active material and at least partially submerged in the electrolyte, iv) an iron negative electrode at least partially submerged in the electrolyte, the iron negative electrode comprising iron active material; v) a separator at least partially submerged in the electrolyte provided between the positive electrode and the negative electrode; vi) an auxiliary oxygen gas recombination electrode electrically connected to the iron negative electrode by a first electronic component, ionically connected to the electrolyte by a first some pathway, and exposed to a gas headspace above the electrolyte level by a first gas pathway.

The present invention discloses a battery cover (100) with fail-safe ionic conductivity isolation for flooded lead-acid batteries, comprising a bottom plate (110) with a plurality of through holes (112) and channels (116) facilitating electrolyte refilling and gas egress A main channel (114) on the bottom plate (110) receives replenished electrolyte, distributed via the plurality of channels (116). The top plate (120) mates with the bottom plate (110) to conceal the channels and through holes. A flow regulator assembly (130) selectively controls electrolyte flow, including options for manual or electric operation. Float-cum-level indicators (140) in the through holes provide real-time electrolyte level indication. The vent (150) includes a flame arrestor to ensure safety. This design offers advantages such as precise electrolyte distribution, enhanced safety through gas egress management, and real-time electrolyte level monitoring, ensuring optimal battery performance and longevity.

A cleaning system or device for cleaning dialysate after it passes through a dialysis machine and a method for cleaning and optionally recycling dialysate are described herein. The system, device and method can be used with a portable, at home dialysis machine or in the hospital. Optionally the cleaning system and device are portable. The cleaning system and device include a UV light source; an activated carbon filter and / or urease reactor bed; and zirconium phosphate and / or zirconium hydroxide. Optionally, the cleaning system and device also include a deionized resin bed, e.g. an anion exchange resin and a cation exchange resin. The clean dialysate can be pumped into the inlet for the dialyzing machine, or into a storage tank. Optionally, following cleaning, the levels of electrolytes are measured, if needed additional electrolytes are added to the cleaned dialysate to provide the desired levels of electrolytes in the cleaned dialysate.

The utility model discloses a kind of aluminium electrolytic cell liquid level height measuring devices, including electric push rod and the pull rope displacement sensor of detecting electric push rod elongation amount installed on external support, the telescopic end of electric push rod is equipped with measuring casing, the bottom of measuring casing is equipped with measuring probe, measuring probe is connected anode busbar by wire assembly, wire assembly includes measuring wire and connecting wire, measuring wire is located inside measuring casing, measuring wire electrically connected measuring probe and connecting wire, the end of connecting wire away from measuring wire and anode busbar electrically connected. The aluminium electrolytic cell liquid level height measuring device can detect electrolyte level and aluminium water level, and can also be used to detect parameters such as polar distance and electrolyte resistance, and detect the temperature of electrolyte and aluminium liquid. It does not require human intervention, can eliminate the interference of human error, can also save manpower, improve work efficiency and is easy to use.

The invention discloses a hand-push type electrolytic cell two-level measurement method and device, and the method comprises the steps: horizontally placing a liquid level probe in a limiting groove, and then carrying out the non-contact measurement of the lengths of molten aluminum and electrolyte remaining on the liquid level probe through a measuring ruler on one side of the limiting groove; therefore, the aluminum level and electrolyte level data in the electrolytic cell can be safely obtained; the aluminum level and the electrolyte level of each electrolytic cell can be conveniently measured by moving the cart body; the length of the residual aluminum liquid and electrolyte on the liquid level probe can be safely measured, and the data of the aluminum level and the electrolyte level in the electrolytic cell can be mastered easily.

The invention relates to a construction system and method for an electrochemical discharge machining process, and the system comprises a workpiece main shaft which is used for clamping a target workpiece; the electrolyte tank is used for containing electrolyte; the control module is used for controlling the workpiece main shaft to rotate, so that a layer of stable electrolyte film is attached to the surface of the target workpiece when the surface of the target workpiece is pulled away from the electrolyte surface in the machining process of the target workpiece; the adjusting module is used for adjusting the rotating speed of the workpiece main shaft or the relative distance between the target workpiece and the electrolyte level; the detection module is used for detecting the thickness of the electrolyte film attached to the surface of the target workpiece and detecting the electrochemical discharge spark state under each electrolyte film thickness; and the construction module is used for generating a thickness change rule and a discharge change rule so as to construct a corresponding electrochemical discharge machining rotary workpiece process in combination with the thickness change rule and the discharge change rule. Therefore, the technical problems that in the related technology, the application range is limited, the conflict between the machining process and the actual process requirement is difficult to balance, a stable electrolyte film is difficult to form on the surface of the workpiece, and the thickness of the liquid film on the surface of the workpiece is difficult to accurately regulate and control are solved.

The utility model provides a battery shell, a battery and electronic equipment, and relates to the technical field of lithium ion battery manufacturing. The battery shell provided by the utility model comprises a first shell which is provided with a containing cavity, and a first opening is formed in the side face of the first shell in the thickness direction of the first shell; and the transparent substrate is connected to the first shell and covers the first opening, and the liquid level height of the electrolyte in the containing cavity can be observed through the transparent substrate. According to the battery shell provided by the invention, the electrolyte content of the lithium ion battery can be observed in real time, and the battery shell is simple to manufacture and convenient to use.

This invention relates to the field of battery analysis technology, and more particularly to a highly transparent pouch battery, its preparation method, and a method for observing internal battery reactions. This pouch battery includes a cell and a packaging bag, the packaging bag being formed by encapsulating a transparent packaging film. The packaging bag contains a mounting cavity for accommodating the cell and an observation cavity communicating with the mounting cavity. The observation cavity is formed by the packaging film itself, and the communication channel between the mounting cavity and the observation cavity is formed by the packaging film adhering to but not fusing with the film. Electrolyte fills the mounting cavity and the observation cavity. This invention uses a transparent packaging film, enabling observation from any angle and avoiding interface mismatch problems between different materials. Simultaneously, the built-in observation cavity, based on the principle of shared electrolyte, allows changes in the electrolyte level within the observation cavity to directly reflect the degree of absorption or consumption of electrolyte by the cell, achieving effective observation of the electrolyte state inside the cell.

The utility model discloses an electrolyte cooling device for long-cycle operation of a flow battery, and aims to solve the problems of ionic membrane expansion and electrolyte migration caused by electrolyte temperature rise in a long-term cycle experiment process of the flow battery, and the problems of electrolyte interruption and invalid experiment caused by insufficient electrolyte amount. The device mainly comprises an electrolyte container, a cooling liquid channel, a pump, a temperature sensor, a liquid level measuring rod, an alarm and the like. And the cooling liquid channel is wound on the outer side of the electrolyte container and is connected with the cooling liquid container through a cooling liquid inlet pipe and a cooling liquid outlet pipe. When the temperature in the electrolyte container exceeds a preset value (such as 45 DEG C), the temperature sensor starts the pump, and the cooling liquid is pumped into the cooling liquid channel to reduce the temperature of the electrolyte. In addition, a liquid level measuring rod is arranged at the top of the electrolyte container, and when the electrolyte amount is insufficient, the liquid level measuring rod can trigger an alarm to remind a worker to supplement the electrolyte in time.

The present application belongs to the field of electrochemistry, and particularly relates to a vanadium flow battery and a method for keeping the positive and negative electrolyte of the vanadium flow battery balanced. The vanadium flow battery comprises a positive electrolyte tank and a negative electrolyte tank, a balance pipeline is arranged between the two tanks, and the two tanks are also connected through an overflow pipeline. The overflow pipeline is located at a predetermined threshold height above the positive or negative electrolyte level to achieve that, during the charging and discharging process, the positive electrolyte level exceeding the predetermined threshold height overflows into the negative electrolyte tank, or the negative electrolyte level exceeding the predetermined threshold height overflows into the positive electrolyte tank. During the charging and discharging, if the electrolyte level of either side is higher than the specified threshold, it will automatically flow to the other side through the overflow pipeline, so as to realize the automatic adjustment of the liquid level at any time. When needed, the quick liquid level balance between the positive electrolyte tank and the negative electrolyte tank can be realized by opening the balance pipeline, and the partial ion concentration difference and the partial charge capacity can be restored.

The invention discloses a method and device for detecting the liquid injection amount in real time, and the method comprises the steps: S1, preparing a liquid storage cup with scales, and enabling the liquid storage cup to contain a preset amount of electrolyte in advance; s2, the liquid storage cup is communicated with a liquid injection opening of the cylindrical battery through a sealed connecting device capable of controlling the flow, and it is ensured that electrolyte can freely flow between the liquid storage cup and the liquid injection opening and cannot leak; s3, controlling the electrolyte to be injected from the liquid storage cup to the liquid injection port of the cylindrical battery until the electrolyte amount required by the battery cell or a preset injection condition is reached; s4, in the electrolyte injection process, continuously observing and recording the variable quantity of the electrolyte liquid level in the liquid storage cup, the variable quantity directly corresponding to the quantity of the electrolyte injected into the cylindrical battery cell; and S5, according to the recorded electrolyte liquid level change quantity. According to the invention, real pore data is provided for cell design, the operation is simple, multiple liquid injection can be avoided, and the liquid injection efficiency is improved.