710 results about "Button battery" patented technology

The invention relates to the technical field of batteries, in particular to a negative electrode performance evaluation method which comprises the following steps: S1, preparing a button cell by taking hard carbon as a negative electrode active material; s2, performing a first charge and discharge test on the button cell in a voltage interval of 0-1.5 V to obtain a first discharge specific capacity A1; carrying out a second charge and discharge test in a voltage interval of 0V-0.8 V to obtain a second discharge specific capacity A2; carrying out a third charge and discharge test in a voltage interval of 0.05-0.8 V to obtain a third discharge specific capacity A3; and carrying out a fourth charge and discharge test in a voltage interval of-0.005 V to 1.5 V to obtain a fourth discharge specific capacity A4. According to the evaluation method provided by the invention, the dynamic performance of the hard carbon negative electrode can be quickly judged, necessary support data is provided for full battery application, and different types of hard carbon can be quickly screened.

The invention discloses a method for evaluating the dynamic performance of a positive electrode active material, which comprises the following steps: preparing the positive electrode active material into a button cell, and charging the button cell; the button cell is subjected to discharging treatment, the discharging treatment comprises first-rate discharging and second-rate discharging, charging treatment is carried out between the first-rate discharging and the second-rate discharging, the discharging rate of the first-rate discharging ranges from 0.05 C to 0.2 C, and the discharging rate of the second-rate discharging ranges from 1 C to 2 C; testing the discharge capacity Q1 of the button cell at a first rate, and testing the discharge capacity Q2 of the button cell at a second rate; and based on the ratio of Q2 to Q1, evaluating the dynamic performance of the positive electrode active material. Therefore, the dynamic performance of different batches of positive electrode active materials with similar particle sizes can be evaluated through a relatively simple method, and the positive electrode active material meeting the required dynamic performance requirement is obtained through screening.

The utility model provides a button cell. The button cell comprises a first shell, a second shell, a diaphragm and a second pole piece, the first shell comprises a conducting layer and an insulating layer, a first mounting groove is formed in the middle of the first shell, and the surface of the conducting layer is coated with an active material layer within the range of the first mounting groove; a second mounting groove is formed in the middle of the second shell; the edges of the first shell and the second shell are hermetically connected to form a mounting cavity, at least parts of the first tab and the second tab are exposed out of the mounting cavity, and the diaphragm and the second pole piece are arranged in the mounting cavity. The active material layer is arranged on the surface of the conductive layer of the first shell, so that the problems of non-uniform thickness of the pole piece and falling of the active material layer caused by rolling of the active material layer coated on the pole piece are avoided, the problem of large gram capacity fluctuation is avoided, the gram capacity is more stable, and the battery performance is effectively improved.

The utility model discloses a button cell which comprises a positive pole shell, the positive pole shell comprises a supporting part and a corner part connected to the outer side of the supporting part, the corner part comprises a first turning section and a second turning section, the second turning section is connected between the supporting part and the first turning section, the range of a first curvature radius R1 of the first turning section is 0.5-0.85 mm, and the range of a second curvature radius R1 of the second turning section is 0.5-0.85 mm. The second curvature radius R2 of the second turning section ranges from 0.1 mm to 0.5 mm; the negative electrode shell comprises a covering part and a bent buckling part, the covering part and the supporting part are oppositely arranged, the bent buckling part has a third curvature radius R3, the range of the third curvature radius R3 is 0.1-0.3 mm, and the area, provided with the third curvature radius R3, of the bent buckling part is oppositely arranged with the first turning section; and the sealing sleeve is clamped between the corner part and the bent buckling part so as to realize sealing between the positive pole shell and the negative pole shell. According to the button cell disclosed by the utility model, due to the parameter setting of the R1, the R2 and the R3, enough sealing performance is realized between the positive pole shell and the negative pole cover, and the condition of liquid leakage after high temperature is avoided.

The invention relates to the technical field of oil tank truck safety monitoring, in particular to an oil tank truck Iot intelligent lead sealing strip system which comprises a lock assembly and further comprises a steel wire rope detection circuit, a wireless communication module, an NFC encryption label and a power supply module. Each lock assembly comprises a main body shell, a lock shell, a lock cylinder, a spring and steel balls, the two lock assemblies are symmetrically arranged relative to the center line of the main body shell, and the three steel balls of the same structure are arranged on the lock cylinder in the radial direction of the lock cylinder; the steel wire rope detection circuit connects a steel wire rope to the circuit through a resistor, and detects the connection state of the steel wire rope in real time by detecting the voltage change on the steel wire rope; the wireless communication module comprises a master control MCU circuit integrated with a wireless transceiver and a wireless antenna, and is used for uploading the connection state information of the steel wire rope in real time; the NFC encryption tag has a repeated read-write function and can be encrypted; and the power supply module is a disposable button cell. According to the application, the safety of lead seal monitoring of the oil tank truck can be improved.

The utility model belongs to the field of battery storage, and provides a battery storage box which comprises a first cover body, a second cover body, a first storage plate and a first magnetic part, the second cover body can be covered with the first cover body, and when the second cover body is covered with the first cover body, the first storage plate is arranged on the side, facing the second cover body, of the first cover body; the first storage plate is provided with a plurality of first battery grooves used for containing button batteries, and the first magnetic parts are arranged at the bottoms of the first battery grooves and used for adsorbing the button batteries contained in the first battery grooves. When the button battery is contained in the first battery groove, the button battery is attracted to the first magnetic piece, so that the button battery with the size smaller than that of the first battery groove can be stably contained in the first battery groove under the attraction of the first magnetic piece, and therefore the battery containing box can contain button batteries of different sizes; and the universality of the battery storage box is improved.

The invention relates to the technical field of electronics, in particular to a button cell connector and a using method thereof.According to the connector, a PCB is partially hollowed out to form a notch capable of containing a button cell, the thickness space of the PCB can be utilized, a negative electrode elastic piece and a positive electrode elastic piece are symmetrically distributed up and down, a welding pin is welded and fixed to the PCB, and therefore the thickness space of the PCB can be utilized. When the button cell is installed, the button cell enters the notch from the disassembly and assembly opening, the negative elastic piece and the positive elastic piece are matched with the PCB to vertically clamp the button cell, the elastic piece body is connected with the button cell, and when the button cell is disassembled, the button cell can be withdrawn from the notch through the disassembly and assembly opening as long as thrust is applied from the rear end of the button cell and the button cell is pulled out from the front end of the button cell. Therefore, the connector provided by the invention can reduce the space of the whole machine to the greatest extent, is also beneficial to the later maintenance or replacement of the button cell, and is simple in structure and high in safety and stability. The invention also provides a use method of the button cell connector.

The utility model discloses a button cell which comprises a shell which comprises a positive pole shell and a negative pole cover, the anode shell is bowl-shaped; the negative electrode cover is in a cover shape and covers the positive electrode shell; the button cell further comprises an isolating membrane which is arranged in the shell and divides the space in the shell into a positive electrode cavity and a negative electrode cavity; the positive electrode cavity is a space defined by the positive electrode shell and the isolating membrane, and the negative electrode cavity is a space defined by the negative electrode cover and the isolating membrane; the positive electrode combined cake is accommodated in the positive electrode cavity; the positive electrode combined cake comprises a battery positive electrode active matter Ag2O; the positive electrode electrofluid is accommodated in the positive electrode cavity; the positive electrode combined cake is infiltrated in the positive electrode electrofluid; and the negative electrode combined material is accommodated in the negative electrode cavity. According to the utility model, the isolating membrane and the sealing ring are arranged to effectively prevent short circuit; and the outer curled edge of the negative electrode cover is wrapped by the sealing ring, and the opening end of the positive electrode shell is inwards folded to press the top of the sealing ring, so that layer-by-layer lamination is realized, and the shell of the battery is firmer, safer and more reliable.

The invention relates to the field of organic polymer synthesis and new energy lithium batteries, in particular to a water-based adhesive, a preparation method of the water-based adhesive and application of the water-based adhesive to a lithium ion battery. The invention relates to a water-based adhesive which is obtained by reacting a polycarboxylic acid polymer with a compound containing an epoxy group. Carboxyl groups in polycarboxylic acid react with epoxy groups in epoxy alcohol through carboxylic acid-epoxy addition reaction, and the adhesive has high water solubility due to the fact that the adhesive contains carboxyl groups and hydroxyl groups; and the current trend that the negative electrode water-based adhesive replaces the oily adhesive is met. Through hydroxyl modified polycarboxylic acid, the flexibility of an adhesive film is improved, the electrochemical performance of a battery cell is greatly improved, the hydroxyl modified polycarboxylic acid type water-based adhesive is applied to a silicon negative electrode to assemble a button cell, and it can be found that the long cycle performance, the rate capability and the capacity retention ratio of the cell are greatly improved.

The application provides a button cell structure, a manufacturing method thereof and a button cell, wherein the button cell structure comprises a winding core formed by winding a laminated structure and having a hollow inner hole, the laminated structure comprises at least one positive electrode sheet, at least one negative electrode sheet and a separator separating the at least one positive electrode sheet and the at least one negative electrode sheet, and at least two ends of the winding core are provided with a separator bonding layer wrapping the winding core, which is used for fixing the positive electrode sheet and the negative electrode sheet. The application provides a button cell structure, a manufacturing method thereof and a button cell, which at least solve the technical problem that the positive electrode sheet and the negative electrode sheet are prone to shifting, avoid short circuit caused by the contact between the positive electrode sheet and the negative electrode sheet and the shell in the button cell, and improve the use safety of the button cell.

The invention belongs to the technical field of batteries, and particularly relates to a method for evaluating the energy efficiency of a lithium iron phosphate positive electrode material. The evaluation method comprises the following steps: (1) mixing a lithium iron phosphate positive electrode material, a binder and a solvent to obtain lithium iron phosphate slurry; (2) coating an aluminum foil with the lithium iron phosphate slurry, and sequentially carrying out drying and rolling treatment to obtain a positive pole piece; and (3) assembling the positive pole piece into a button battery, and carrying out charge and discharge test. The method has the beneficial effects that the lithium iron phosphate positive electrode material and the binder are directly mixed and detected, and the detection method is improved, so that the lithium iron phosphate positive electrode material incoming material inspection is quickly and accurately carried out at low cost.

The invention provides a method for analyzing a main failure mechanism of a battery with an electrolyte leakage fault. The method comprises the following steps of: performing calendar aging, cyclic aging and reference performance test on a normal battery and a leakage battery; comparing the external characteristics of the normal battery and the leakage battery, and obtaining the difference between the leakage battery and the normal battery in the aspect of external characteristic performance; carrying out deep analysis on the dynamic degradation mechanism of the liquid leakage battery by utilizing an in-situ analysis means; obtaining a normal battery pole piece and a fault battery pole piece, and characterizing the battery pole pieces by using an electrochemical characterization means; battery regeneration is realized by using a battery pole piece, re-supplementing electrolyte and manufacturing a button battery; performance testing and aging testing are performed on the regenerated battery; the performance of the regenerated battery is evaluated; and a failure mechanism of the battery with liquid leakage is disclosed. And comparing the performance difference between the regenerative battery and the normal battery, and determining the irreversible influence of the fault on the battery. According to the invention, the main way of failure of the battery with liquid leakage and the irreversible influence of the liquid leakage fault on the battery can be revealed.

The invention provides a water-based composite electrolyte and a preparation method and application thereof. The water-based composite electrolyte comprises soluble zinc salt, amino acid hydrochloride additives and deionized water. The aqueous composite electrolyte can be used for a symmetrical button cell, a half cell or an aqueous zinc ion total cell. By adjusting zinc ion deposition on the surface of the zinc electrode, the growth of zinc dendrites is reduced, and the shuttle effect of the iodine positive electrode is inhibited, so that the coulombic efficiency and the cycle performance of the water-based zinc-iodine battery are improved. The additive disclosed by the invention can be adsorbed on the surface of a zinc negative electrode, delays the nucleation process and inhibits the growth of zinc dendrites; the form of hydrochloride can play a role of a buffer solution, stabilize the pH value of the electrolyte, inhibit the corrosion of the zinc negative electrode and reduce the hydrogen evolution reaction; the hydrochloride form can weaken the protonation effect of amino acid groups and enhance the electrostatic interaction between the amino acid groups and the polyiodide, so that the shuttle effect is inhibited, and the coulombic efficiency and the cycle performance of the aqueous zinc-iodine battery are improved.

The invention discloses a preparation method of a positive electrode-electrolyte integrated structure for a secondary battery, and relates to the field of secondary batteries. Comprising the following steps: 1) preparing a positive plate: mixing a positive active material, a conductive agent, a binder, a solvent and an acrylic monomer, then coating a current collector with the mixture, and finally drying to obtain the positive plate; 2) preparing an electrolyte precursor solution: mixing electrolyte salt, an acrylamide monomer, an initiator, a cross-linking agent and an electrolyte solvent to obtain the electrolyte precursor solution; and 3) dispensing the electrolyte precursor solution on the positive plate, and illuminating to obtain an electrode-electrolyte integrated structure. According to the invention, the contact interface between the electrode and the electrolyte is effectively improved, and the preparation process flow of the secondary battery can be obviously shortened. Taking an aqueous zinc ion secondary battery as an example, a button battery assembled by adopting an electrode-electrolyte integrated structure still keeps high capacity of 200 mAh / g after being circulated for 900 circles under the current of 0.5 A / g.

The utility model provides an integrated temperature and humidity recorder which comprises a shell, a PCB is arranged in the shell, a USB golden finger is fixedly installed at the right end of the PCB, the USB golden finger penetrates through the right end of the shell, a button cell is arranged in the shell, a display screen is embedded in the top of the shell, the PCB is electrically connected with the display screen, and the PCB is electrically connected with the display screen. The PCB and the display screen are both electrically connected with the button cell, and the right half part of the shell and the outer side of the USB golden finger are sleeved with silicon rubber cases. The USB connector has the advantages of being good in USB golden finger protection effect and convenient to install and use.

Provided is a keyholder-type camping light with a simplified structure, which is convenient for small-scale production. 【Solution means】It includes a lamp shade 1 and a lamp holder 2 below the lamp shade. An illumination element 3 is provided on the lamp holder, and at least a part of the illumination element is located within the lamp shade. A lower cover 4 is provided below the lamp holder. The lower cover is screwed and connected to the lamp holder. A circuit board 5 and a button battery 6 are provided in the space between the lower cover and the lamp holder. The circuit board is electrically connected to the illumination element. When the lower cover is rotated and tightened to the lamp holder, the button battery is electrically connected to the circuit board. When the lower cover is rotated and loosened from the lamp holder, the connection between the button battery and the circuit board is interrupted.

A mechanism for controlling light in a rotating mode comprises an installation base, the center of the installation base is provided with a round battery groove for a button battery to be arranged in, and the central axis of the battery groove is recorded as a first axis; the central axis of the annular rotating main body is the first axis, and the rotating main body is arranged on the periphery of the battery groove in a circumferential rotating mode; a gear ring which is arranged along the circumferential direction and can rotate along with the rotating main body is arranged on the circumferential wall of the rotating main body; the circuit board is used for being electrically connected with the lamp, is fixed relative to the mounting seat and is provided with a toggle switch arranged corresponding to the gear ring, and the toggle switch is positioned on a rotating path of each tooth of the gear ring and is arranged to be capable of being scanned by each tooth in sequence along with the rotation of the gear ring so as to record the scanning direction and / or frequency of the teeth. According to the utility model, the arrangement of the circular battery jar is beneficial to alignment between the central axis of the rotating main body and the rotating axis, so that the rotating main body rotates more smoothly, and the gear ring on the rotating main body can be matched with the toggle switch more accurately.

The utility model discloses a novel button cell installation structure, which relates to the technical field of cell installation, and comprises a PCB substrate, the top of the PCB substrate is fixedly clamped with a cell positive electrode elastic sheet, the inner surface of the cell positive electrode elastic sheet is slidably clamped with three button cells, and the left side and the right side of the interior of the PCB substrate are both provided with T-shaped clamping grooves which are through up and down. When the battery positive electrode elastic piece is installed, the reverse T-shaped clamping plate is clamped into the T-shaped clamping groove, the battery positive electrode elastic piece can be fixed, then the button battery is clamped between the positioning side plates, and the positioning side plates can be limited, so that the reverse T-shaped clamping plate cannot be separated from the T-shaped clamping groove; the button cell can be effectively installed and fixed, welding-free, economical and environment-friendly effects are achieved, the button cell is directly installed in a button-shaped mode, the production cost is reduced, meanwhile, the efficiency problem is solved, and the situation of unstable welding is avoided.

The utility model discloses an LED lamp string which comprises an LED lamp bead string, a battery box and an NFC chip, the battery box is heart-shaped and is formed by clamping an upper box and a lower box, a battery holder is arranged in the lower box, two button batteries are fixed by the battery holder to form up-down series connection and are in contact with a PCB (printed circuit board) contact, the PCB is in contact connection with the batteries, and the NFC chip is connected with the battery holder. The PCB is provided with a chip for controlling the LED lamp bead string to flicker and be normally on, the LED lamp bead string is welded to the PCB, and an NFC chip is arranged on the inner wall of the upper box of the battery box in an attached mode. A battery insulation sheet is further arranged between the two button batteries, and the LED lamp string can be controlled to be switched on and off by pulling and inserting the battery insulation sheet. When the heart-shaped LED lamp string is used for scenes such as fresh flowers and gifts, one side receiving the scenes such as the fresh flowers or the gifts can sense the position of the battery box of the heart-shaped LED lamp string through a mobile phone, namely, the NFC chip jump webpage can be sensed, and therefore the effect of transmitting emotions is achieved.

The utility model discloses a high-strength anti-theft padlock and key combination, which comprises a padlock and a key, the key comprises a key handle and a key head, the key handle is provided with a battery jar and a protective cover, a button battery is installed in the battery jar, the button battery is electrically connected with an electromagnet, the key head is provided with a groove, a contact switch is arranged in the groove, and the contact switch is electrically connected with the electromagnet. The control module is used for controlling electromagnet energization; the padlock comprises a lock body, a lock beam and a lock cylinder. A lock tongue is arranged above the lock cylinder; a sliding groove A is eccentrically formed in the top face of the lock cylinder, and the sliding groove A and the groove are complementary in shape. A sliding groove B matched with the sliding groove A is formed in the bottom face of the spring bolt. A magnetic block is arranged in the sliding groove A. A sliding groove C is formed in the contact position of the bottom face of the spring bolt and the inner wall of the lock body, a sliding groove D matched with the sliding groove C is formed in the inner wall of the lock body, and a positioning pin is arranged in the sliding groove D. The anti-theft padlock has the advantages that the anti-theft function of the padlock is enhanced, and the maintenance cost is low.

The utility model discloses a disposable dental handpiece quick-connection electric connector, which comprises an adapter block, a terminal and an adapter seat, the adapter block is provided with a plurality of plugging holes and an electric mounting hole, and the plurality of plugging holes are used for plugging an air inlet pipe, a water inlet pipe and an atomizing pipe of a dental handpiece; the terminals are inserted into the electric mounting holes; the adapter seat is provided with an inserting groove for inserting a dental handpiece handle, the bottom of the inserting groove is provided with an air inlet groove, a water inlet groove, an atomizing groove and an electric inserting groove, the terminal is inserted into the electric inserting groove, and the adapter block is clamped at the bottom of the inserting groove. When the disposable dental handpiece is used, the terminal is inserted into the adapter block, then the adapter block is sleeved at the connecting end of the disposable dental handpiece, the adapter seat is inserted into the connecting end of the disposable dental handpiece, external electricity is conducted to a handpiece handle of the disposable dental handpiece, and the disposable dental handpiece does not need to be provided with a button battery.

The application provides a preparation method of a high-capacity button cell, and particularly relates to the technical field of button cells. The preparation method uses artificial graphite, etched graphene, electrolytic manganese dioxide and a binder as preparation materials of a positive plate, assembles after the positive plate is prepared, injects electrolyte, seals, and pre-discharges to obtain the high-capacity button cell. The high-capacity button cell has high discharge capacity and can release more electric energy in unit volume, and greatly promotes the power supply capacity. The etched graphene is prepared by the following method: mixing graphene, a strong alkali solution and an ethanol solution, then performing ultrasonic treatment, spray drying, first-stage temperature etching, second-stage temperature etching, cooling, washing with deionized water until neutral, and drying.

This utility model relates to the field of battery packaging technology and discloses an automatic labeling device for button battery packaging, including a conveyor frame, two side plates, and a drive mechanism. The side plates are fixedly connected to the lower ends of the conveyor frame. The drive mechanism includes multiple conveyor rollers, a protective shell, and two hand-operated expansion shafts. The front and rear ends of the conveyor rollers are rotatably connected to the inner walls of the front and rear ends of the conveyor frame. A moving mechanism is provided at the upper end of the conveyor frame. The moving mechanism includes a moving plate, two guide rods, and a moving threaded rod. The front and rear ends of the guide rods are fixedly connected to the side plates. In this utility model, the moving threaded rod in the moving mechanism is threadedly connected to the moving plate, causing the moving plate to move along the guide rods, facilitating changes in the label pasting position. A return spring in the adjusting mechanism applies elastic force to the adjusting block, which, in conjunction with the adjusting threaded rod, drives the pressure plate to change the magnitude of the elastic force applied by the return spring, facilitating adjustments to the tension of the label tape.

This invention provides a coin cell battery and its manufacturing method. The method includes providing a first housing, the first housing including a conductive layer and an insulating layer, a first mounting groove in the middle of the first housing, a through hole in the insulating layer within the first mounting groove, and a conductive layer exposed outside the insulating layer through the through hole. An active material layer is coated on the surface of the conductive layer. A second electrode is inserted into a second mounting groove of a second housing, and a separator is placed inside. The edges of the first housing and the second housing are sealed, and the first mounting groove and the second mounting groove are sealed to form a mounting cavity, thus obtaining a coin cell battery. By pre-coating the active material layer onto the surface of the conductive layer of the first housing, the problems of uneven electrode thickness and active material layer detachment caused by rolling the active material layer onto the electrode are avoided, resulting in a more stable specific capacity and effectively improving battery performance.

The utility model discloses a fish finder, which relates to the technical field of fish finders and comprises a connecting seat, a lifting air bag is fixedly arranged at the top of the connecting seat, a water pipe is fixedly communicated with the outer side of the lifting air bag, a filter screen matched with the water pipe is fixedly mounted on the inner wall of the outer side of the water pipe, and a circulating pump is fixedly mounted on the water pipe. The water quantity in the lifting air bag is controlled through the circulating pump, the self weight of the fish finder is conveniently controlled, the fish finder can sink to the water bottom for fish finding operation when the water quantity is too large, the lifting air bag drives the fish finder to rise and emerge from the water surface after water is drained, the filter screen filters external water, foreign matter is prevented from entering and blocking a water pipe, and the button battery provides a use power source. The Bluetooth connection chip facilitates Bluetooth connection of a mobile phone to check fish-finding pictures of the camera probe in real time, the GPRS positioning chip facilitates checking of fish-finding positions, the lighting lamp facilitates improvement of light intensity and facilitates camera shooting of the camera probe, the data transmission chip facilitates transmission of data to the controller, and use is flexible and convenient.

The invention relates to the technical field of button battery production, and particularly discloses an automatic button battery combining machine which comprises a combining mechanism, a positioning mechanism, a negative electrode conveying mechanism, a positive electrode conveying mechanism and a pressurizing mechanism. A first positioning notch is formed in a negative plate limiting groove formed in the adsorption plate, a second positioning notch is formed in a positive plate limiting block arranged on the jacking seat, positioning blocks at the two ends of the positioning mechanism can abut against the two ends of the negative plate and the two ends of the positive plate, and positioning blocks on the side face of the positioning mechanism can abut against one side of the negative plate and one side of the positive plate. The negative electrode conveying mechanism is used for conveying a negative electrode plate into the negative electrode plate limiting groove, the positive electrode conveying mechanism is used for conveying a positive electrode plate to the jacking seat, and the pressurizing mechanism is used for pressing a positive electrode and a negative electrode on the positive electrode plate. According to the automatic button cell combination machine, the assembly precision of button cells can be improved, and the yield of products is increased.

The automobile key convenient to disassemble and assemble comprises a base and a rear cover clamped to the base through a clamping limiting structure, a first containing cavity is formed in the inner side of the base, and a key board and a circuit board are sequentially and detachably installed in the first containing cavity from the bottom to the top. The circuit board is detachably connected with a button cell which can be modularly and integrally assembled and disassembled with the circuit board, the button cell is arranged towards the rear cover, a second containing cavity used for containing the button cell is formed in the inner side of the rear cover, and the base is provided with a positioning structure used for connecting and fixing the key board and the circuit board at the same time. A first pressing structure abutting against the circuit board is arranged on the rear cover, a second pressing structure is arranged on the face, facing the circuit board, of the key board, and a key piece capable of being stored is rotationally connected to the base. By arranging the positioning structure, accurate positioning of the key board and the circuit board during installation is ensured, deviation of the key board and the circuit board during installation is avoided, modes such as screw connection and fixation are not needed, and disassembly and assembly are convenient.

This invention relates to the field of battery packaging technology, and in particular to an automatic loading and unloading button cell battery packaging device, which includes a frame, a loading tray, a unloading tray, a loading and unloading device, and a battery sealing device. The loading tray is provided with multiple material-carrying sections arranged in an array. The unloading tray is provided with multiple unloading slots. The battery sealing device includes a sealing mold and a liquid injection mechanism. The liquid injection mechanism includes a liquid injection component and a liquid injection pump body. The liquid injection pump body is mounted on the frame, and the liquid injection component is mounted on one side of the lower mold to move up and down with the lower mold. This invention forms a closed-loop process of "loading-processing-unloading", realizing the orderly flow of materials, avoiding frequent manual intervention, improving production continuity, and helping to improve production efficiency. The precise matching of the row of suction nozzles with the array of material-carrying sections ensures the consistency of material position during the transfer process. It reduces the load on the lower mold, making the movement lighter and reducing the length and wear of the follow-up pipeline.

The utility model belongs to the field of button cell circuits, and particularly relates to a low-power-consumption energy storage circuit of a button cell, which comprises an energy storage element and an energy storage switch circuit. The energy storage element is used for storing electric energy and providing energy reserve for the switching power supply and the load; the energy storage switch circuit automatically controls the charging and discharging states of the energy storage element according to an instruction of the main control chip, and can cut off a loop to the ground of the energy storage element under the condition that the switch is switched off; through a low-cost scheme, the problem of high power consumption of a common capacitive energy storage circuit in current wearable equipment is solved, the problem of overhigh power consumption caused by the fact that an energy storage element is in an unstable working state for a long time is well solved, meanwhile, the energy storage element is activated when the energy storage element needs to work, the requirement of the wearable equipment for electric energy storage is not influenced, and the energy storage efficiency is improved. According to the scheme, the number of added elements is small, the cost advantage is large, and the button cell power supply wearable device is especially suitable for long-term standby.

The application discloses a kind of diaphragm ion resistivity test methods, comprising the following steps: two pieces of same size foil, diaphragm to be measured and target electrolyte are made into only one layer diaphragm button cell;Pre-tightening force is applied to the prepared button cell;Linear sweep voltammetry in electrochemical workstation is used to test the linear voltammogram of button cell;According to the ion resistance and layer number curve diagram of different layer number diaphragm button cell, the calculation method of diaphragm ion resistivity is: ρ=k×S÷d, wherein the slope k is the ion resistance of the diaphragm, S is aluminum foil area, and d is diaphragm thickness;Through the test method of the application, it is not necessary to test the meaningless diaphragm electronic resistance in lithium battery, but directly test diaphragm ion resistivity, and the method is more accurate and can meet actual demand.