116results about "Primary cell details" patented technology

A battery including: a battery can including a cylinder portion including an opening edge portion at one end portion of the cylinder portion and a bottom portion that closes the other end portion of the cylinder portion; an electrode body; a sealing member that seals an opening of the opening edge portion. The sealing member includes: a sealing plate; a cap connected to the sealing plate and electrically insulated from the sealing plate; and a sealing portion sealing a space between the cylinder portion and the cap. The cap includes: a ring-shaped top plate portion opposing the opening edge portion in an axial direction of the cylinder portion; and a side wall portion covering an outer circumferential surface of the cylinder portion. The sealing portion may be a gasket provided between the cap and the cylinder portion in a compressed state. The cap is electrically connected to the cylinder portion.

The invention provides a battery cell detection method, a packaging structure, a battery cell, a battery and electric equipment, and relates to the technical field of batteries. The battery cell detection method is applied to a battery cell, and comprises the following steps: arranging an electroluminescent film on a packaging film of the battery cell, and electrically connecting the electroluminescent film with a first tab led out from the battery cell through a conductive piece; and detecting whether the electroluminescent film emits light or not so as to determine the electrical connection state of the second tab led out from the battery cell and the packaging film, thereby determining whether the battery cell is short-circuited or not. According to the battery cell detection method, the problem that defective products flow out due to the fact that whether the battery cell is short-circuited or not cannot be accurately recognized when the battery cell is offline can be solved.

The flexible battery comprising multiple power generation elements. Each of the power generation elements comprises a positive electrode, a negative electrode, and a solid electrolyte layer arranged between the positive and negative electrodes. The positive electrode comprises a positive electrode composition layer and a conductive substrate in a form of a sheet arranged on the surface of the positive electrode composition layer. The negative electrode comprises a negative electrode composition layer and a conductive substrate in a form of a sheet arranged on the surface of the negative electrode composition layer. The multiple power generation elements are arranged on a flexible substrate. Each positive electrode is directly connected to a current collector, thereby connecting the positive electrodes to each other via the current collector. Each negative electrode is directly connected to a current collector, thereby directly connecting the negative electrodes to each other via the current collector.

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.

Example embodiments relate to multiple battery configurations for space utilization. One embodiment includes a device. The device includes a primary battery. The device also includes an auxiliary battery configured to supply auxiliary electrical power. A first surface of the auxiliary battery is positioned along a first surface of the primary battery. The auxiliary battery is a thin-film battery. The first surface of the auxiliary battery has a smaller area than the first surface of the primary battery.

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.

The present invention belongs to the field of power supply devices, and in particular, relates to a battery identification device and an electrical device, wherein the battery identification device includes a controller, a battery compartment and an elastic component, wherein the elastic component includes a first elastic member and a second elastic member disposed therein, wherein the length of the first elastic member is greater than the length of the second elastic member, and a signal point is disposed at a position corresponding to the second elastic member on the circuit board, and the controller identifies the battery according to the output level of the signal point when the battery is placed in the battery compartment. When the battery is placed, the two ends of the battery respectively abut against the conductive sheet and the first elastic member, thereby forming a loop between the battery and the controller; when the second elastic member abuts against the battery, the signal point is electrically connected to the battery; when the second elastic member does not abut against the battery, the signal point is disconnected from the battery. The battery identification device can identify the battery model based on the output level when the signal point is electrically connected to the battery, which is simple and easy to implement, does not require complex circuits and judgment procedures, and has low cost.

The utility model provides a button cell diaphragm paper feeding device, which relates to the technical field of button cell assembly, and comprises a rack, and an assembly conveying mechanism, a diaphragm paper roll placing mechanism and a punching press-fitting mechanism which are arranged on the rack, the assembling and conveying mechanism is connected with the lithium strip assembling and conveying mechanism and is used for transferring and conveying the die sleeve; the assembling and conveying mechanism comprises a plurality of rotary conveying assemblies which are connected in sequence; the diaphragm paper assembling and conveying belt assembly is used for conveying the shell assembled with the diaphragm paper and the die sleeve assembly to the next working procedure; the diaphragm paper roll placing mechanism is used for mounting a diaphragm paper roll; the punching and press-fitting mechanism comprises a punching and press-fitting support, a punching assembly and a press-fitting assembly. The utility model has the advantages that the production efficiency is greatly improved, and meanwhile, the assembly consistency and the assembly quality are further ensured.

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).

1. A method for filling a container (C) of an electrochemical cell (302) with electrolyte, the method comprising the steps of filling a plurality of filling units (2) with electrolyte, coupling each filling unit (2) to a corresponding one of the containers (C) to form an integrated assembly (4), transferring the electrolyte from the filling units (2) to the container (C), and decoupling each filling unit (2) from the container (C), wherein the coupling and decoupling steps between the filling units (2) and the container (C) are performed inside a conditioned chamber (116, 116'), the conditioned chamber (116, 116') is bounded by a wall separating an environment therein from an environment therein outside, the pressure and / or humidity conditions of the internal environment being different from those of the external environment, and the step of transferring the electrolyte from the filling units (2) to the container (C) is performed at least partially in an environment external to the conditioned chamber (116, 116').

To provide a laminated battery manufacturing method with which it is possible to manufacture a laminated battery having high structural reliability.SOLUTION: Provided is a laminated battery manufacturing method comprising: an arrangement step for arranging a plastic liquid injection frame 20 having a liquid injection opening P on a side surface of an electrode laminate 10; a liquid injection step for injecting an electrolyte to the inside of the electrode laminate; a first sealing step for locating a first member 30 having a resin layer A on a surface of the liquid injection frame, in which an x-axis direction orthogonal to a z-axis direction is taken as a normal direction, and sealing the liquid injection opening; a battery processing step for applying charging and / or aging after the first sealing step; an open hole forming step for forming an open hole Q that communicates with the liquid injection opening in the first member after the battery processing step; and a second sealing step, by using a second member 40 having a resin layer B and a metal layer, for locating the resin layer B of the second member on a surface of the first member, in which the x-axis direction is taken as the normal direction, and thereby covering the open hole and sealing the liquid injection opening.SELECTED DRAWING: Figure 1

This power storage element comprises an electrode body formed by winding an electrode plate, and a sheet member fixed to the outermost periphery of the electrode body, wherein the elongation rigidity of the sheet member is higher than the elongation rigidity of the electrode plate.

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.

An alkaline electrochemical cell has a central cathode having a corresponding cathode current collector electrically connected with a positive terminal of the electrochemical cell. The cathode current collector has a tubular shape, such as a cylindrical shape or rectangular shape, extending parallel with the length of the central cathode. The cathode current collector is embedded within the central cathode, such as at a medial point of a radius of the central cathode, thereby minimizing the distance between the cathode current collector and any portion of the central cathode, thereby increasing the mechanical strength of the cathode and facilitating charge transfer to the cathode current collector.

In the present invention, a battery comprises: an electrode body in which a positive electrode and a negative electrode (12) are wound with a separator therebetween; and an outer can that accommodates the electrode body. The negative electrode (12) has a negative electrode core body (40) and a negative electrode mixture layer (42) disposed on the negative electrode core body (40). The negative electrode mixture layer (42) has a recess (70), which is recessed to the center side in the negative-electrode width direction, at one of a total of four corners on the winding-start side and the winding-end side in the negative-electrode longitudinal direction. The length of the recess (70) in the negative-electrode longitudinal direction is 1 / 5 or less of the length of the negative electrode (12) in the negative-electrode longitudinal direction. As a result, it is possible to suppress the generation of a load concentration part in the electrode mixture layer (42), thus allowing to realize a battery that is easy to achieve high capacity.

The utility model discloses a winding drum, a winding cell, a battery, a battery device and electric equipment, the winding drum is used for winding a pole piece assembly and comprises a winding part, the winding part defines a cavity, a limiting part communicated with the cavity is formed on the winding part, and the limiting part is suitable for limiting one end of the pole piece assembly; and the supporting part is accommodated in the cavity and is suitable for supporting the winding part after the pole piece assembly is wound on the winding drum. According to the winding drum designed by the utility model, the problem of core pulling during winding of the pole piece assembly can be avoided, the production yield is improved, and the structural strength is better.

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.

Circuitry for processing an analyte signal obtained from an electrochemical cell, the circuitry comprising: measurement circuitry having a first measurement input coupled to a first electrode of the electrochemical cell, the measurement circuitry configured to convert the analyte signal at the first measurement input to a first analog output signal; an analog-to-digital converter (ADC) having an first ADC input for receiving the first analog output signal, the ADC configured to convert the first analog output signal to a first digital output signal at an ADC output; compensation circuitry configured in a measurement mode to: apply a first compensation to the first digital output signal to obtain a first compensated digital output signal, the first compensation to compensate for non-linearity in the ADC; and apply a second compensation to the first compensated digital output signal to obtain a second compensated digital output signal, the second compensation to compensate for non-linearity in the measurement circuitry; control circuitry configured in a calibration mode to: apply a first calibration signal at the first ADC input and adapt the first compensation based on the first calibration signal and the first compensated digital output signal; and apply a second calibration signal at the first electrode and adapt the second compensation based on the second calibration signal and the second compensated digital output signal.

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 invention provides a front structure for preventing a micro-channel from being blocked, which is characterized in that before entering an inlet of the micro-channel, all electrolyte passes through a choked flow array formed by a plurality of choked flow cylinders, the electrolyte containing large-particle impurities flows away through branch flow channels, and the electrolyte without impurities or containing small-particle impurities flows away through the micro-channel. According to the front structure for preventing the micro-channel from being blocked, large particles are shunted and turned in advance in front of the inlet of the micro-channel, and it is ensured that fluid entering the micro-channel is free of impurities or only contains tiny impurities, so that it is ensured that the fluid flows smoothly when flowing through the micro-channel, and the blockage of the micro-channel is prevented. Meanwhile, the turbulence intensity of the fluid flowing through the micro-channel is increased after the fluid is disturbed by the cylinder, so that the risk of blockage of the micro-channel can be further reduced.

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.