58results about "Primary cell details" patented technology

Disclosed is a method of controlling a modular battery powered handheld surgical instrument. The surgical instrument including a battery, a user input sensor, a controller, a radio frequency (RF) drive circuit, an ultrasonic transducer, ultrasonic transducer drive circuit, and an end effector. The end effector including an electrode electrically coupled to RF drive circuit, an ultrasonic blade acoustically coupled to the ultrasonic transducer, and a sensor to measure tissue parameters. The method includes applying an RF current drive signal to the electrode by the RF drive circuit; applying an ultrasonic drive signal to the ultrasonic transducer by the ultrasonic transducer drive circuit to acoustically excite the ultrasonic blade; controlling intensity, wave shape, and / or frequency of the RF current drive signal and the ultrasonic drive signal on a sensed measure of a tissue or user parameter.

The disclosure relates to an aqueous electrochemical device comprising a negative electrode, a positive electrode, a separator and an aqueous electrolyte having an alkaline pH, wherein onto the positive electrode is disposed at least one layer of nanoparticles capable of being used to form a local hydronium ion rich environment at the positive electrode during operation of the device, and / or the capacity ratio between the negative electrode and the positive electrode is less than 1 so as to substantially avoid production of oxygen at the positive electrode. The electrochemical device may find particular use in large-scale energy storage.

Provided in the present application are a button lithium primary battery and a preparation method therefor, and an electronic device. The button lithium primary battery comprises a battery casing (10) and a battery cell assembly located inside the battery casing (10), wherein the battery cell assembly comprises a negative electrode (3), a negative-electrode modification membrane (4), separators (5, 6) and a positive electrode (7), which are sequentially stacked; a recess (9) is provided on the surface of the side of the negative electrode (3) that is close to the negative-electrode modification membrane (4); and the negative-electrode modification membrane (4) is tightly embedded in the recess (9). By means of optimizing the structure and the material of the button lithium primary battery in the present application, the button lithium primary battery has an excellent discharge performance, and good levels of stability and reliability.

The present invention relates to a unit cell inspection device, the unit cell inspection device including: a transport unit configured to transport a plurality of unit cells, each having an electrode, in a predetermined transport direction and including a plurality of transport rollers arranged along the transport direction; and an optical inspection unit configured to optically sense an inspection target unit cell, which is a unit cell positioned at a predetermined inspection position among the plurality of unit cells transported by the transport unit, wherein each of the unit cells further includes an electrode tab extending from the electrode and exposed to an outside of a separator provided in each of the unit cells, the optical inspection unit configured to set an area including an area where at least a portion of the electrode tab is located at the inspection position as a Region of Interest (ROI), and an adjacent transport roller, which is a transport roller disposed adjacent to the Region of Interest among the plurality of transport rollers, may be configured not to overlap the Region of Interest.

The application relates to the technical field of automation equipment, in particular to electrolyte manufacturing equipment and an electrolyte preparation method. A powder mixing rotary driving element is used for driving a powder mixing frame to rotate, so that different powder mixing tanks are docked with bottle bodies to be assembled in first mounting slots; a tank opening driving element is used for driving a driving rod to drive a first screw rod to move downward in a powder storage space, so that the first screw rod opens or closes an outlet of the powder storage space, and a stirring frame stirs powder in the powder storage space; a liquid mixing support seat is provided with second mounting slots for mounting the bottle bodies to be assembled, and a liquid mixing nozzle assembly is used for injecting electrolyte stock solution into the bottle bodies to be assembled; a plurality of magnetic sub storage slots are arranged on a supporting plate, and magnetic sub bodies are placed one by one in the magnetic sub storage slots; and a magnetic sub stirrer is used for driving the magnetic sub bodies to rotate in the bottle bodies to be assembled. The electrolyte manufacturing equipment can complete the work of liquid mixing, powder mixing and stirring, and has high automation degree and high efficiency.

The invention relates to the technical field of automatic equipment, in particular to electrolyte manufacturing equipment and an electrolyte preparation method. The powder blending rotation driving part is used for driving the powder blending frame to rotate, so that different powder blending tanks are in butt joint with the to-be-assembled bottle bodies in the first mounting groove; the can opening driving part is used for driving the driving rod to drive the first lead screw to move downwards in the powder storage space, so that the first lead screw opens or closes an outlet of the powder storage space, and the stirring frame stirs powder in the powder storage space; a second mounting groove for mounting a to-be-assembled bottle body is formed in the liquid preparation supporting seat; the liquid preparation nozzle assembly is used for injecting the electrolytic stock solution into the to-be-assembled bottle body; a plurality of magneton storage grooves are formed in the supporting plate, the magneton bodies are placed in the magneton storage grooves in a one-to-one correspondence mode, and the magneton stirrer is used for driving the magneton bodies to rotate in a bottle body to be assembled. The electrolyte manufacturing equipment can complete the work of liquid preparation, powder preparation and stirring, and is high in automation degree and high in efficiency.

To provide a lithium primary button type battery having excellent discharge performance, good stability and reliability, its manufacturing method, and an electronic apparatus.SOLUTION: A lithium primary button battery comprises a battery case and a battery core module located inside the battery case, the battery core module comprises a negative electrode (3), a negative electrode modification membrane (4), a separator (5, 6) and a positive electrode (7) which are sequentially stacked, a surface of the negative electrode (3) close to the negative electrode modification membrane (4) is provided with a concave groove (9), and the negative electrode modification membrane (4) is tightly embedded in the concave groove (9).SELECTED DRAWING: Figure 2

This application provides a cell testing method, a packaging structure, a cell, a battery, and an electrical device, relating to the field of battery technology. The cell testing method is applied to a cell and includes: setting an electroluminescent film on the cell's packaging film, and electrically connecting the electroluminescent film to a first tab led out from the cell via a conductive element; detecting whether the electroluminescent film emits light to determine the electrical connection state between the second tab led out from the cell and the packaging film, thereby determining whether the cell is short-circuited. This cell testing method can solve the problem of inaccurately identifying whether a cell has a short circuit when it comes off the production line, leading to defective products being released.

A manufacturing method of a power storage element according to the present embodiment includes insertion of an electrode body into a cylindrical case body having a first opening and a second opening at both ends. In the insertion of the electrode body, a first end close to the first opening of the electrode body is pulled into the case body from the first opening.

A battery according to an embodiment comprises: an electrode group in which a band-like positive electrode plate (11) and a band-like negative electrode plate are wound with a separator therebetween; an electrolyte; and an outer can. The positive electrode plate (11), in which a positive electrode mix layer (31) is formed on a band-like positive electrode core (30), comprises: a positive electrode tab (20) which is connected to an area on one end side of the positive electrode core (30) and not extending beyond the center in the width direction of the positive electrode plate (11); and a dummy tab (37) which is connected to an area on the other end side of the positive electrode core (30) and not extending beyond the center in the width direction of the positive electrode plate (11). When the positive electrode plate (11) is viewed in the width direction, the dummy tab (37) is disposed to overlap at least a part of the positive electrode tab (20).

A balance valve, a battery, and a power consumption apparatus are provided in the embodiments of the present application. The balance valve includes a body, a breathable membrane and a gas barrier structure, where the body is provided with a ventilation channel; the breathable membrane is arranged at one end of the ventilation channel; and, the gas barrier structure is arranged at the other end of the ventilation channel, and the gas barrier structure is configured to open the ventilation channel when the gas pressures inside and outside the gas barrier structure are unbalanced, so as to achieve the gas pressure balance between the inside and outside of the gas barrier structure. The balance valve is applicable to a battery, which could achieve a balance of gas pressures inside and outside the battery when there is a pressure difference between the inside and outside of the battery.

A gas diffusion electrode for a diaphragm electrolysis cell is provided. Diaphragm electrolyzers for treating salt-containing solutions are also provided. Methods for producing a base product are also provided. In particular, a gas diffusion electrode for processing lithium within a multi-chamber diaphragm electrolysis cell is provided.

The invention relates to the technical field of batteries, in particular to a coating composition for improving leakage resistance, liquid absorption and discharge performance of a battery and application of the coating composition. The prepared coating composition comprises the following raw materials in percentage by mass: 10%-25% of a methacrylate-acrylamide block copolymer, 10%-15% of polyvinyl alcohol, 40%-53% of starch, 1%-5% of an inorganic-organic composite corrosion inhibitor, 0.5%-2% of a compound surfactant and the balance of water. The invention also provides a preparation method of the coating composition and an application of the coating composition in a zinc-manganese dry battery, and the coating composition is used for preparing coated paper so as to improve the leakage resistance, liquid absorption and discharge performance of the battery. According to the invention, the methacrylate monomer is introduced into the traditional polyacrylamide hydrogel polymerization process, so that the liquid absorption amount and the liquid absorption rate are remarkably improved, the leakage resistance of the battery is improved, the liquid absorption amount is doubled, the discharge time is prolonged by 10%, and the retention rate reaches 95% or more after the battery is naturally stored for half a year.

There is provided a gas diffusion electrode for use in a membrane electrolysis cell. There is also provided a membrane electrolysis cell for processing a salt-containing solution. There is also provided a process for producing a base product. In particular, there is provided gas diffusion electrodes within multi-compartment membrane electrolysis cells for use in processing lithium.

Provided is an alkaline battery (1) including a positive electrode (5), a negative electrode (7), a separator (6), and an electrolytic solution which are accommodated in a container (8). The electrolytic solution is a potassium hydroxide aqueous solution having a concentration of 40% to 50%. The negative electrode consists of a gel-like negative electrode mixture containing a negative electrode active material and an alkaline aqueous solution. The alkaline aqueous solution contains potassium hydroxide and sodium hydroxide in a molar ratio range of 89:11 to 96:4. The positive electrode consists of a positive electrode mixture including a positive electrode active material containing silver oxide and manganese dioxide, and a blending ratio of manganese dioxide in the positive electrode mixture is 25% to 50% by mass.

The present invention provides a method for manufacturing an energy storage element that facilitates the insertion of the electrode body into the case body. [Solution] The solution involves inserting an electrode body 2, on which electrodes are stacked, into a case body having an opening in a first direction, through the opening, and the insertion of the electrode body is performed while maintaining a state in which the electrode body is compressed in a second direction Z that intersects the first direction.

Assembly comprising an electrochemical element and a rechargeable electrical element and associated manufacturing process. The assembly (10) comprises: - an electrochemical element (20) comprising: - a container (22) extending along a first central axis (A-A'), having an external tubular wall (24) delimiting an internal volume (30) receiving a first electrochemical bundle (32); - a rechargeable electrical element (40) electrically connected to the electrochemical element (20). The rechargeable electrical element (40) is a pouch-type element comprising a second bundle (43) having a first electrode, a second electrode, and at least one separator, the second bundle (43) being spirally wound around a second central axis (B-B') coaxial to the first central axis (A-A') and around the external tubular wall (24) of the electrochemical element (20). Figure for the abbreviation: Figure 2

The present invention provides an electrode assembly, a manufacturing method and a manufacturing system thereof, a battery cell, a battery, and a power consumption device. The electrode assembly of the present invention includes a first polarity sheet, a second polarity sheet, and a first separator, the polarities of the first polarity sheet and the second polarity sheet are opposite, the first separator is used to separate the first polarity sheet and the second polarity sheet, and the first polarity sheet, the second polarity sheet, and the first separator are wound along the winding direction. The electrode assembly has a folding region, and a second separator is provided in the folding region, the second separator is stacked with the first separator, and is used to separate the adjacent first polarity sheet and the second polarity sheet, and at least some ions desorbed from the first polarity sheet pass through the first separator and the second separator and are inserted into the second polarity sheet. The first separator and the second separator jointly separate the first polarity sheet and the second polarity sheet in the folding region, thereby effectively reducing the problem of the electrode assembly being short-circuited due to the breakage of the separator.

The present invention relates to an electrode assembly and a method for manufacturing the same, a battery cell, a battery, and a power consumption device. The electrode assembly includes an active material coated portion and a plurality of stacked tab pieces, the stacked tab pieces having overlapping regions and misaligned regions, a tab portion formed by welding the overlapping region to form a first weld, and a tab portion formed by welding at least the portion of the misaligned region away from the active material coated portion. In the technical solution of the embodiment of the present invention, on the one hand, it is advantageous to increase the utilization rate of the tab portion, improve the capacity of the battery cell, and suppress the temperature rise during overcurrent. On the other hand, the second weld can play a role in supporting the welding press nozzle more than the bulging plurality of tab pieces, reducing the problem of welding defects, relaxing the cutting requirements of the tab portion after welding to save costs, improving the rapid charging performance and assembly efficiency of the battery cell, and the tab portion can be made less susceptible to damage by the hole walls of the through-hole structure.

Provided are a battery structure and a battery pack. The battery structure includes a first housing (1) and a battery (11) assembled within the first housing (1); and a second housing (2) and a capacitor (21) assembled within the second housing (2). A positive terminal of the battery (11) is provided with a first positive output member (12), and a cover plate of the battery (11) serves as a negative terminal of the battery (11). A positive terminal of the capacitor (21) is provided with a second positive output member (22), and a negative terminal of the capacitor (21) is provided with a negative output member (23).

A method for manufacturing an alkaline dry battery includes first to third steps. In the first step, a hollow cylindrical first positive electrode pellet including a first end face and a second end face is prepared in an axial direction is prepared. In the second step, a hollow cylindrical positive electrode pellet group including the first positive electrode pellet is inserted into a case to obtain a positive electrode inscribed in the case. At this time, the first positive electrode pellet is disposed on the most opening side of the case such that the first end face faces an opening side of the case. In the third step, an annular groove is provided in a side part of the case. The first positive electrode pellet includes a tapered part whose outer diameter decreases from the second end face toward the first end face, and in a cross section along the axial direction of the first positive electrode pellet, an inclination angle θ of the tapered part with respect to an axis of the first positive electrode pellet ranges from 0.26° to 0.87°, inclusive. A distance h between the groove and the first end face ranges from 0.55 mm to 2.35 mm, inclusive.

Provided are a lithium primary button cell, a preparation method thereof, and an electronic device. The lithium primary button cell includes a cell housing (10) and a cell core assembly located within the cell housing (10). The cell core assembly includes a negative electrode (3), a negative electrode modification film (4), separators (5, 6), and a positive electrode (7) that are stacked sequentially. The surface of one side of the negative electrode (3) facing the negative electrode modification film (4) is formed with a concave groove (9) into which the negative electrode modification film (4) is tightly embedded. In the present application, the structure and materials of the lithium primary button cell are optimized so that the lithium primary button cell can have excellent discharging performance and good stability and reliability.

The utility model discloses a kind of lithium battery insulation bag bottom supports, including bottom plate, the surface of its contact with lithium battery cell is provided with the insulation buffer layer for insulation;Side fixed plate, it is symmetrically set to the both end side wall of bottom plate;The inside of the side fixed plate has the adjusting buckle for fixing bottom plate and lithium battery cell;The inside of the adjusting buckle is provided with the protection assembly for the buffer protection of adjusting buckle, the utility model is set to the inside of the side wall of side fixed plate of the both sides of bottom plate with movable adjusting buckle, so that installer adjusts the position of adjusting buckle according to the positioning hole of different specifications lithium battery cell, lithium battery cell is installed, further increase the utilization of bottom support.

The present disclosure relates to an electrochemical cell comprising a cathode, an electrolyte, and an anode with a laminated bi-layer structure. This bi-layer anode addresses interface instability challenges in lithium metal batteries through a protective first layer and high-capacity second layer that are mechanically integrated via rolling. The first layer comprises lithium-containing materials including lithium-magnesium alloy, lithium nitride, LLZO, or combinations thereof, providing interfacial stabilization and preventing polysulfide shuttling. The second layer comprises lithium-magnesium alloy, lithium titanate, or combinations thereof, contributing substantial capacity. This configuration eliminates interface resistance buildup, reduces costs through selective use of expensive protective materials, and enables practical utilization of high-magnesium content alloys.

To provide a quality control device that can reduce manufacturing loss costs by predicting the yield in a battery inspection process from foreign matter inspection data for a battery material and work-in-progress.SOLUTION: A quality control device 10 includes a model storage unit 11 that stores a relational equation that formulates the relationship between foreign matter inspection data from a foreign matter inspection device 21 that measures foreign matter that gets mixed in as impurities in a battery material or work-in-progress in a battery manufacturing process (electrode manufacturing process 31, cell manufacturing process 32) and battery inspection data from a battery inspection device 22 that inspects the electrical characteristics of batteries manufactured in the battery manufacturing process in a battery inspection process 33, a yield prediction value calculation unit 12 that calculates a yield prediction value in the battery inspection process using the relational equation of the model storage unit 11 using the foreign matter inspection data as input, and a yield prediction value display unit 13 that displays the yield prediction value on a display device 23.SELECTED DRAWING: Figure 1

In some embodiments, the electrochemical cell (200) may include a container; electrodes disposed within the container, the electrodes including a first set of electrodes and a second set of electrodes, the first set of electrodes including one or more first electrodes (207) and the second set of electrodes including one or more second electrodes (205), the one or more first electrodes and the one or more second electrodes alternating in the stack such that the first electrodes do not contact one another and the second electrodes do not contact one another; a separator set (203, 204) including one or more separators disposed between the first set of electrodes and the second set of electrodes; an electrolyte solution disposed within the container; and a current collector disposed within the container.

To provide an alkaline battery, and a method for manufacturing an alkaline battery.SOLUTION: An alkaline battery accommodates a positive electrode, a negative electrode, a separator, and an electrolytic solution in a container. The electrolytic solution is a potassium hydroxide aqueous solution with a concentration of 40-50%. The negative electrode is formed of a gel-like negative electrode mixture including a negative electrode active material and an alkaline aqueous solution, and the alkaline aqueous solution is an alkaline aqueous solution including potassium hydroxide and sodium hydroxide at a molar ratio within a range of 89:11 to 96:4. The positive electrode is formed of a positive electrode mixture including silver oxide and manganese dioxide, and the blending ratio of manganese dioxide in the positive electrode mixture is 25 to 50 mass%.SELECTED DRAWING: Figure 1

A member for a non-aqueous electrolyte battery containing a copolymer containing a tetrafluoroethylene unit and a fluoroalkyl vinyl ether unit, in which the number of functional groups per 106 carbon atoms of a main chain of the copolymer is 100 or less, and a melt flow rate of the copolymer is 20 to 30 g / 10 minutes.

The utility model relates to an assembly structure, in particular to an assembly structure for converting a sodium battery into a dry battery, which comprises a battery cell, a cap, a PCB (printed circuit board) support frame, a PCB, a PCB probe and a negative electrode insulation sheet, the cap is arranged at the top of the battery cell, the negative electrode of the battery cell is attached to the PCB support frame, the PCB is connected onto the PCB support frame, the PCB probe is integrated at the bottom of the PCB, the positive electrode of the battery cell is attached to the PCB probe, and the negative electrode insulation sheet is connected onto the PCB support frame. The top of the cap is provided with a cathode insulation sheet. According to the utility model, the PCB is assembled on the PCB support frame, and the cap is assembled on the battery cell, so that the finished battery cell can be assembled, the assembling structure is simple, the variety of dry batteries is enriched, and the battery can be charged, has long cycle life and is safe and environment-friendly.

A battery 1 includes a charge / discharge body 10 including an electrode (a positive electrode 11 and a negative electrode 12) including an electrode tab (a positive electrode tab 11b and a negative electrode tab 12b), a cover (a positive electrode tab cover 66 and a negative electrode tab cover 67) that faces a side section (one side section 10a) of the charge / discharge body 10, from which the electrode tab projects, and covers and insulates the charge / discharge body 10, and a container 51 that houses the charge / discharge body 10 covered by the cover and has conductivity. The cover includes a main body section (a main body section 66a and the like) that covers the side section of the charge / discharge body 10, an insertion section (an insertion section 66b and the like) formed in a cutout shape including an opening at an outer edge 66a1 of the main body section, the electrode tab being inserted into the insertion section, and a wall section (a wall section 66c and the like) that extends in a direction further away from the side section than the main body section and separates an inner surface 51c of the container 51 and the insertion section.