548 results about "Coin cell" patented technology

The invention discloses a button cell bitter agent and a coating method thereof, and relates to the technical field of button cells. The button cell bitter agent comprises the following components in parts by weight: water, denatonium benzoate, sodium chloride and an adhesive. According to the button cell bitterness agent and the coating method, a highly effective protective layer with strong bitterness can be formed, and the whole surface of the button cell is uniformly coated without influencing the electrical property of the cell.

A button cell includes an electrode assembly, a first tab, and a second tab. The electrode assembly includes a first electrode plate and a second electrode plate; the first electrode plate and the second electrode plate are stacked and wound in a spiral shape around a central axis. A first current collector of the first electrode plate includes a first starting edge and a first ending edge. A first connection segment of the first tab has a first centerline; a second connection segment of the second tab has a second centerline; viewed from the first direction, a line connecting the first centerline and the central axis is a third virtual line, a line connecting the second centerline and the central axis is a fourth virtual line; an acute angle formed between the third virtual line and the fourth virtual line is α1, where 90°≤α1≤180°.

The invention discloses button cell assembling equipment, which comprises a feeding device, an electrolyte adding device and a sealing and pressing device, and is characterized in that the feeding device comprises a rotating motor driven by a corresponding first driving mechanism; the charging tray taking mechanism comprises an electromagnet which is in transmission connection with the rotating motor and a magnetic metal piece which is fixedly connected to the charging tray; the button battery material taking mechanism comprises a plurality of suction nozzle mounting assemblies and suction nozzles mounted on the suction nozzle mounting assemblies; the sealing and pressing device comprises a sealing and pressing bottom die assembly; an upper die assembly is sealed and pressed; an air blowing mechanism; and the electrolyte adding device comprises an electrolyte pipetting gun, and the electrolyte pipetting gun is driven by a corresponding fourth driving mechanism. According to the invention, the raw materials for preparation of the button cell can be stacked in sequence in a full-automatic manner, electrolyte is added, and then the stacked raw materials for preparation of the button cell after the electrolyte is added are sealed, pressed and assembled.

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 sealed electronic luminescent lamp comprises a shell and an electronic lamp body, the shell comprises an upper shell body and a lower shell body, the top of the upper shell body is a flexible plastic plate, a first protruding strip and a second protruding strip are arranged on the inner side of the upper shell body, the electronic lamp body is embedded in a groove body of the lower shell body, and the electronic lamp body comprises a circuit board and a button cell. A first round hole and a second round hole are formed in the top of the circuit board, a lower notch is formed in the bottom of the circuit board and sleeved with a metal sheet, the metal sheet can swing leftwards and rightwards by pressing the first protruding strip and the second protruding strip, an anode copper sheet is embedded in one side of the first round hole, and the metal sheet swings leftwards to make contact with the anode copper sheet. The first protruding strip on the left side of the flexible plastic plate is pressed, the first protruding strip extrudes the metal sheet to make the metal sheet make contact with the positive electrode copper sheet on one side of the first round hole, the positive electrode and the negative electrode of the circuit board are communicated with the button battery to emit light, opening is achieved, and the switch is sealed, small in size, wide in application and capable of being applied to products such as shoes, clothes, headwear and toys. Good commercial prospects are realized.

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 present application relates to the field of batteries and specifically discloses a lithium battery sealing material and a preparation method thereof. The lithium battery sealing material comprises the following raw materials in parts by weight: 100-150 parts of nylon, 5-15 parts of maleic anhydride grafted polypropylene, 10-20 parts of rosin glycerol ester, 5-10 parts of poly(trimethylene terephthalate), 5-15 parts of filler, 0.5-1 part of antioxidant, and 0.2-0.5 parts of dispersant. The preparation method comprises the following steps: uniformly mixing nylon, poly(trimethylene terephthalate), and maleic anhydride grafted polypropylene to obtain a primary mixture; uniformly mixing the filler and rosin glycerol ester, and then uniformly mixing the filler and the rosin glycerol ester with the primary mixture to obtain a mixture; adding the antioxidant and the dispersant to the mixture, stirring evenly, and extruding to obtain a finished product. The hygroscopicity of a button battery sealing ring is reduced, and the sealing ring is ensured to have high mechanical strength, good sealing effect, and long service life, thereby extending the service life of the button battery.

The invention provides a button cell. The button cell comprises a shell and a laminated cell. The shell comprises a bottom shell, a pole and a top cover. The top cover is hermetically connected with the bottom shell. And the pole is connected with the top cover. And the bottom shell and the pole lead out different polarities. The laminated battery cell is arranged in the shell; along the stacking direction of the laminated battery cell, the laminated battery cell comprises a first single-sided pole piece and a second single-sided pole piece which are positioned on the outermost side. And the first single-sided pole piece and the second single-sided pole piece are opposite in polarity. The first single-sided pole piece comprises a first current collector and a first active material layer; along the stacking direction of the laminated cell, the surface, facing the pole, of the first current collector is directly and electrically connected with the pole. The first active material layer is arranged on the surface, back to the pole, of the first current collector. And the second single-sided pole piece comprises a second current collector and a second active material layer. And the surface of the second current collector back to the pole is directly and electrically connected with the bottom shell. The second active material layer is arranged on the surface, facing the pole, of the second current collector.

The present invention provides a button cell electrode, a button cell and a preparation method thereof, wherein the electrode comprises a current collector; a pole ear, a pole ear glue is provided, one end of the pole ear has a welding area, and the pole ear is welded to the current collector through the welding area; wherein at least a portion of the pole ear glue overlaps with the current collector, and a bendable flexible portion is formed between the welding area and the pole ear glue. Compared with the prior art, in the button cell of the present invention, at least a portion of the pole ear glue overlaps with the current collector, and the welding area of ​​the pole ear is arranged at the end position, thereby forming a flexible portion between the welding area and the pole ear glue for bending, and the arrangement of the flexible portion avoids the risk of the aluminum-plastic film being squeezed and ruptured due to the formation of a sharp angle when the pole ear is bent from the top, and at the same time, the pole ear is directly bent in the flexible portion area, which completely solves the problem of leakage and inflation caused by the puncture of the aluminum-plastic film.

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 invention discloses a NiCo-LDH / porous carbon composite material with expanded interlayer spacing as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing coal pitch serving as a carbon source with potassium hydroxide, combusting in an inert gas atmosphere, and performing acid pickling, suction filtration and drying to obtain a coal pitch-based porous carbon material; the preparation method comprises the following steps: uniformly dispersing a certain amount of porous carbon material in a mixed solution of nickel nitrate hexahydrate, cobalt nitrate hexahydrate, polyvinylpyrrolidone (PVP) and ethylene diamine tetraacetic acid (EDTA-2Na), performing hydrothermal reaction, adding hydrazine hydrate (N2H4H2O), and performing hydrothermal reaction again to obtain the nickel-cobalt layered double hydroxide / porous carbon composite material (NiCo-LDH-PC) with expanded interlayer spacing. Compared with the prior art, the method has the advantages that the interlamellar spacing of NiCO-LDH is regulated and controlled, the interlamellar spacing is enlarged, and the NiCO-LDH has excellent electrochemical performance and cycling stability as an electrode material of a supercapacitor and a button cell.

The invention belongs to the technical field of lithium ion battery materials, and particularly relates to a surface titanium coated and modified lithium nickel manganese oxide positive electrode material, a preparation method and application. The invention discloses a preparation process of lithium nickel manganese oxide positive electrode powder with uniformly distributed nickel and manganese elements, elements are kept uniformly distributed in a solution, and the obtained powder is dispersed by ball milling, so that element segregation in the lithium nickel manganese oxide positive electrode powder is further inhibited; the titanium coating treatment improves the conductivity and ionic conductivity of the lithium nickel manganese oxide powder at the same time, so that the charge-discharge and rate capability of the button battery is improved. The preparation method disclosed by the invention has general applicability and can be applied to positive electrode materials such as lithium nickel manganese oxide and lithium nickel cobalt manganese oxide, so that the conductivity and the ion transmission performance of the positive electrode materials are improved.

The utility model relates to a temperature and humidity recorder, and belongs to the technical field of temperature and humidity detection, the temperature and humidity recorder comprises a bottom shell, a shell cover, a temperature and humidity sensor, a processing unit, a data storage unit and a button battery holder, the shell cover is detachably arranged on the bottom shell; the temperature and humidity sensor is used for detecting temperature and humidity in the environment or soil and sending the temperature and humidity to the processing unit; the processing unit is electrically connected with the temperature and humidity sensor and is used for analyzing and processing environment or soil temperature and humidity data to obtain processed data and sending the processed data to the data storage unit; the data storage unit is electrically connected with the processing unit and is used for storing the processed data; the button battery holder is arranged in the bottom shell, and the temperature and humidity sensor, the processing unit and the data storage unit are all electrically connected with the button battery holder. The device has the advantages that the device can be reused conveniently, and resources and cost can be saved.

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.

An embodiment of the present application discloses a method for detecting the lithium intercalation content of a negative electrode sheet. The detection method does not require the production of a button cell. After the battery cell is charged or discharged, the battery cell is disassembled to take the negative electrode sheet for XRD testing, avoiding the problem of large deviation in the detection result caused by the loss of material during the cutting of the negative electrode sheet for the production of the button cell. Through the XRD spectrum information, from the LiC6 stage of the negative electrode sheet to the peak intensity change of the LiC 12 stage, combined with the theoretical specific capacity per gram of the carbon material, the graphitization degree of the carbon material, and the N / P value of the battery cell, the actual specific capacity of the carbon material is calculated. The lithium intercalation content of the negative electrode sheet is calculated based on the actual specific capacity of the carbon material. It is not affected by the polarization during the charge and discharge of the battery cell, and the result deviation is within the range of 0-5%. The test method is simple to operate, removing the unstable factors in the button cell test. By utilizing the phase change that occurs during the lithium intercalation process of graphite, the intrinsic change of the crystal structure is characterized by XRD testing, the test result is more intuitive, the detection accuracy is high, the detection time is short, and the detection efficiency is high.

This invention relates to the field of cathode material technology for lithium-ion batteries, specifically a method for in-situ construction of ultrathin amorphous nano-coating materials. The method involves the in-situ construction of ultrathin amorphous nano-coating layers using sol-gel, co-precipitation, and electrodeposition combined with hydrothermal methods. 2 MnO 3 The cathode material is coated to encapsulate Li. x MnO y The amorphous nanostructure is uniform and completely coated on Li. 2 MnO 3 The surface of the positive electrode material (Li x MnO y @Li 2 MnO 3 ), where Li x MnO y It is an amorphous coating layer with a thickness of 0.1-10 nm; this invention utilizes Li 2 MnO 3 The cathode material is coated with an ultrathin amorphous Li. x MnO y While ensuring the high discharge specific capacity of the material, it also significantly suppresses Li 2 MnO 3 The voltage decay was observed, and after assembling it into a coin cell and testing its performance, the coated Li was found to have... 2 MnO 3 The material exhibits zero voltage decay after 50 charge-discharge cycles.

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.

A wearable device is disclosed. The wearable device may comprise: a speaker including a coil; a coin cell battery disposed on the speaker; and a conductive tab on a first surface of a case of the coin cell battery, the conductive tab being electrically connected to a portion of a first electrode positioned on the first surface of the case. The coin cell battery can include: the case that includes the first surface facing the speaker and a second surface opposite to the first surface; and a jelly roll. The conductive tab on the first surface of the case can extend in a second rotational direction opposite to the first rotational direction of the jelly roll so as not to overlap the coil of the speaker.

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.