340results about "Dry cells" patented technology

Provided is an electrode stacked body that can be used for assembly of an electrochemical device and can reduce an internal resistance, a method for producing the electrode stacked body, and an electrochemical device that includes the electrode stacked body. The electrode stacked body of the present invention includes a first electrode, a second electrode, and an isolation layer interposed between the first electrode and the second electrode. At least one of the first electrode and the second electrode has an electrode mixture layer and a sheet-type porous metal base material. At least a part of the porous metal base material, including one end portion facing the electrode mixture layer, is embedded in a surface layer of the electrode mixture layer and integrated with the electrode mixture layer. The other end portion of the porous metal base material is exposed on the surface of the electrode. The electrochemical device of the present invention includes an exterior body having a conductive path leading to the outside and the electrode stacked body of the present invention. The porous metal base material on the surface of at least one electrode of the electrode stacked body is brought into contact with the conductive path, providing electrical conduction between the electrode and the conductive path.

A battery includes a cathode that is containing manganese dioxide and graphite, an anode that is containing zinc, an electrolyte in which the cathode and the anode are immersed, and a polyethyleneimine ethoxylate that is contained in the anode or in the electrolyte.

The utility model relates to the technical field of alkaline battery processing, in particular to an alkaline battery manganese ring pressing structure which comprises a working table, an L-shaped bracket and a lifting block, a material conveying bin is arranged on one side of the top of the working table, a material mixing bin is arranged on one side of the top of the material conveying bin, and a first motor is installed on the top of the material mixing bin through bolts; a spiral stirring rod is arranged in the mixing bin; a second motor is installed on one side of the conveying bin through bolts, a spiral conveying rod is arranged on the inner side of the conveying bin, and a limiting ring is arranged on the side, corresponding to the conveying bin, of the top of the workbench. A turning cover is turned over to inject positive electrode powder manufacturing raw materials into a mixing bin, then a first motor drives a spiral stirring rod to rotate to evenly mix the raw materials, after the raw materials are evenly mixed, a discharging valve is opened to enable the raw materials to enter a conveying bin, and then a second motor is started to drive a spiral conveying rod to rotate so that the raw materials can be evenly conveyed into a film pressing bin. Therefore, the processing efficiency is improved.

Assembly 100 for a battery 1000, comprising a housing 10 with at least one through-opening 11, an electrode cap 20, and a bearing arrangement 30, wherein the housing 10 has an outer surface 12 and an inner surface 14, wherein the through-opening 11 is bordered by a circumferential edge 11a, wherein the electrode cap 20 has a flange 21 outside the housing 10, a web 22 in the through-opening 11, and a foot 23 inside the housing 10, wherein the electrode cap 20 is electrically insulated from the housing 10 via the bearing arrangement 30, wherein the bearing arrangement 30 has a first bearing section 32 made of a first material and a second bearing section 31, 33 made of a second material, wherein the second bearing section 31, 33 has a collar 31a which engages positively with a structure 40 of the outer surface 12 of the housing 10, with a first The facility area is 31.wherein the flange 21 is enclosed by the contact surface 31 of the collar 31a, and wherein the structure 40 of the through-opening 11 is opposite the circumferential edge.

The invention provides an alkaline zinc-manganese battery positive electrode dry premixing process and an alkaline zinc-manganese battery, the dry premixing process comprises the following steps: (1) preparing conductive agent powder and electrolytic manganese dioxide powder, the conductive agent powder comprising graphene powder; (2) taking out a part of the electrolytic manganese dioxide powder obtained in the step (1), and uniformly stirring and mixing the part of the electrolytic manganese dioxide powder and the conductive agent powder obtained in the step (1) for the first time to obtain a first uniformly mixed powder material, the part of the electrolytic manganese dioxide powder accounting for 10-50% of the total amount of the electrolytic manganese dioxide powder; and (3) adding all residual electrolytic manganese dioxide powder except the part of electrolytic manganese dioxide powder in the step (2) into the first uniformly mixed powder prepared in the step (2), and uniformly stirring and mixing for the second time to obtain the final uniformly mixed powder. The dry premixing process is beneficial to reduction of the internal resistance of the alkaline zinc-manganese battery and increase of the high-current discharge performance of the battery.

A method for forming a shaped battery can include: adding electrolyte to a dry battery cell, shaping the battery cell, relieving stress and / or strain from the battery cell, curing the electrolyte, and / or injection moulding a thermoplastic or thermoset around the battery cell. A battery cell can include a cathode, an anode, a separator disposed between the cathode and the anode, a gel polymer electrolyte, an overmoulded housing surrounding the cathode, the anode, the separator, and the gel polymer electrolyte, where the battery cell comprises a non-zero radius of curvature about at least 1 axis.

The application discloses a basic zinc-manganese battery diaphragm and a preparation process thereof, and belongs to the technical field of the preparation of a basic zinc-manganese battery diaphragm. The application relates to a polymerization kettle, a transmission device is arranged on the top of the polymerization kettle, and a mechanical seal is arranged between the transmission device and the polymerization kettle. In the application, the downward sliding of the pressure-increasing disc increases the pressure intensity of the polymerization kettle corresponding to the lower part of the pressure-increasing disc, and the upward sliding of the pressure-increasing disc gradually restores the pressure intensity of the polymerization kettle corresponding to the lower part of the pressure-increasing disc. According to the chemical kinetics principle, increasing the pressure can increase the collision frequency of reactant molecules, thereby accelerating the reaction rate. For the polymerization reaction of olefin monomers, appropriate pressure increase is helpful to shorten the reaction time, improve the production efficiency, and make the reactants more fully contact and react, thereby reducing the residue of unreacted monomers, improving the utilization rate of raw materials, and simultaneously changing the pressure intensity of the lower part of the pressure-increasing disc in a small range, which can play a role in defoaming to a certain extent.

To provide a system that supplies independent power.SOLUTION: A system comprises a first conductive part and a second conductive part, a medium, and a functional part. The first conductive part and the functional part are connected with each other. The second conductive part and the functional part are connected with each other. The first conductive part and the medium are in contact with each other. The second conductive part and the medium are in contact with each other. The first conductive part and the second conductive part are not in contact with each other. The medium is formed of concrete or mortar. The composition of the medium in contact with the first conductive part is different from the composition of the medium in contact with the second conductive part.SELECTED DRAWING: Figure 1

The invention discloses a stretchable current collector, a preparation method thereof and an application of the stretchable current collector in an omnidirectional stretchable zinc-manganese microbattery, and the stretchable current collector is prepared by compounding a conductive composite filler and an elastic polymer to prepare a high-modulus conductive nano-material, and then laser engraving a snake-shaped interdigital pattern on the surface of the conductive nano-material. By compounding the modulus-enhanced snakelike interdigital pattern with the soft substrate rubber, a certain modulus gradient is formed at an interface, the deformation resistance of the current collector is enhanced, the strain can be buffered in any stretching direction through the backing-off motion of the snakelike wire and a modulus-regulated strain redistribution mechanism, and the high deformability is achieved. According to the current collector, high loading capacity of an active material can be achieved, a stretchable micro battery with excellent stretchability and excellent electrochemical performance is prepared, stretching at any angle in a two-dimensional plane can be achieved, the current collector can still be tightly attached to the skin in the movement process of a human body, and the current collector has remarkable advantages in the aspect of long-term wearing and using.

The invention discloses an alkaline zinc-manganese battery capable of preventing top short circuit, which comprises a steel shell internally and coaxially provided with an isolation pipe; an annular cavity is formed between the isolation pipe and the steel shell, and the annular cavity is filled with an annular positive electrode; a center cavity of the isolation tube is filled with negative electrode zinc paste; an insulating layer for electronic insulation is further arranged in the annular cavity, the insulating layer is in an annular sheet shape, the insulating layer is attached to the top face of the annular positive electrode and completely covers the top face, the inner edge of the insulating layer is tightly attached to the outer wall of the isolation pipe, and the outer edge of the insulating layer is tightly attached to the inner wall of the steel shell. According to the invention, the insulating layer is additionally arranged at the top of the annular positive electrode, so that negative electrode zinc paste overflowing out of the isolation tube after vibration can be prevented from being in contact with the top end of the annular positive electrode under the condition of violent vibration or over-discharge, and the risk of internal short circuit is effectively reduced; moreover, the formula and dosage of the annular anode zinc paste and the annular cathode zinc paste are kept unchanged, the operation is simple, and the electrical property is not sacrificed.

To provide an electrochemically active cathode material for a battery.SOLUTION: An electrochemically active cathode material includes a non-stoichiometric beta-delithiated layered nickel oxide. The non-stoichiometric beta-delithiated layered nickel oxide has a chemical formula. The chemical formula is LixAyNi1+a-zMzO2*nH2O. In the formula, x is approximately 0.02 to 0.20, y is approximately 0.03 to 0.20, a is approximately 0.02 to 0.2, z is approximately 0 to 0.2, and n is approximately 0 to 1. In the chemical formula, A is an alkali metal. The alkali metal includes potassium, rubidium, cesium, and any combination thereof. In the chemical formula, M comprises an alkaline earth metal, a transition metal, a non-transition metal, and any combination thereof.SELECTED DRAWING: Figure 1

The utility model relates to the technical field of carbon batteries, in particular to a leakage-proof carbon battery. The problem of liquid leakage caused by damage of the carbon battery due to external impact when the carbon battery is used is solved; the battery comprises a shell, a battery main body arranged in the shell and a connecting pole mounted on the upper surface of the battery main body, and further comprises a damping assembly arranged in the shell, and the damping assembly comprises fixing plates, first springs, sliding blocks, first positioning plates, rotating shafts, connecting rods and limiting frames, the two fixing plates are symmetrically and fixedly connected to the interior of the shell, and the two first positioning plates are arranged on the adjacent faces of the two fixing plates correspondingly. According to the utility model, the fixing plate and the first positioning plate can be used for clamping the battery main body to achieve the protection characteristic, and meanwhile, the limiting assembly is additionally arranged, so that the two baffles can be separated by utilizing the matching of the bidirectional screw rod and the limiting block, and the battery main body can be conveniently taken out.

To provide an alkaline electrochemical battery.SOLUTION: Alkaline electrochemical cells are provided, wherein dissolved zinc oxide or zinc hydroxide is included at least in the free electrolyte solution, and / or solid zinc oxide or zinc hydroxide is included in the anode, so as to slow formation of a zinc oxide passivation layer on a zinc electrode. Methods for preparing such cells are also provided.SELECTED DRAWING: Figure 1

The present invention provides an alkaline button cell that has excellent load characteristics and high reliability.　An alkaline button cell which is obtained by having a positive electrode that has a positive electrode mixture layer containing silver oxide and a conductive assistant, a negative electrode that contains zinc particles, and an alkaline electrolyte solution contained in a battery container that is composed of an outer package can, a cover plate and a resin gasket, wherein: carbon black and graphite particles are contained as the conductive assistant in the positive electrode mixture layer; and the water content in the battery container is set to 0.63-1 g per 1 g of the zinc particles in the negative electrode.

The invention provides a battery. A battery according to the present invention is provided with an exterior body and a power generation element housed in the exterior body, the power generation element comprising a positive electrode, a negative electrode, a separator, and an aqueous electrolyte solution, the negative electrode containing, as an active material layer, an electrolytic zinc foil comprising a zinc alloy containing Bi in a proportion of 0.001-0.644 mass%, the aqueous electrolyte solution is an aqueous electrolyte solution having a pH of 3 or more and less than 12 or an alkaline electrolyte solution having a pH of 12 or more.

A sealing assembly for a battery cell includes a grommet having an opening with an inner surface. A peg has a peg head and a shaft extending from the peg head. The shaft includes a first portion having a larger diameter and a second portion having a smaller diameter, and the shaft extends through the opening in the grommet. The shaft and the grommet form a first interference fit at a distal end of the opening. A trap gap is formed between the distal end of the opening and the peg head. The trap gap defines a trap for a sealant. A sealant is disposed on the shaft and at least partially in the trap.

To provide a technique which can obtain a power storage device having a wound electrode body with high productivity.SOLUTION: A manufacturing method of a power storage device (for example, battery) of one embodiment disclosed herein includes: winding step S2 of winding a positive electrode 22 and a negative electrode 24 through a separator 26 to manufacture a wound body 20A; and pressing step S3 of press-molding the wound body 20A after the winding step S2 to form flat wound electrode bodies 20a, 20b, 20c. In the winding step S2, the separator which has an adhesive layer 6 partially on at least one surface is used. The adhesive layer 6 includes: a first adhesive area 6A; and a second adhesive area 6B. A thickness T1 of the first adhesive area 6A is 1.5 times or more of a thickness T2 of the second adhesive area 6B. Furthermore, herein, the method further includes formation step S1 before the winding step S2.SELECTED DRAWING: Figure 1

The present disclosure provides an alkaline dry battery that can suppress the occurrence of internal short-circuiting during medium-load intermittent discharge. An alkaline dry battery according to the present disclosure comprises a hollow tubular positive electrode (2) that is provided in a battery case (1), a gel-like negative electrode (3) that is filled in a hollow part of the positive electrode (2), and a separator (4) that is disposed between the positive electrode (2) and the negative electrode (3), wherein the negative electrode (3) contains a zinc powder and a surfactant. The negative electrode (3) further contains a sulfate in the range of 0.01-0.5 mass%, in terms of sulfuric acid ions with respect to the mass of the negative electrode.

To restrain liquid spill of alkaline battery for a long period of time.SOLUTION: An alkaline battery includes a bottomed cylindrical case having an opening end portion, a power generating element accommodated in the case, and a sealing unit for sealing the opening end portion. The power generating element includes a hollow cylindrical positive electrode, a negative electrode filled in the hollow of the positive electrode, and a separator interposed between the positive electrode and the negative electrode. The opening end portion has an annular groove that is recessed inward and supports the sealing unit, and the end face of the negative electrode on the opening end portion side is covered with a gel-like shielding layer. The gel-like shielding layer contains an alkaline electrolyte and cross-linked polyacrylic acid. The content of the cross-linked polyacrylic acid in the gel-like shielding layer is 2.0% by mass or more and 3.0% by mass or less.SELECTED DRAWING: Figure 1

The application discloses an acid-activated regenerated brick-mixed micro-powder-metakaolin geopolymer battery and a preparation method thereof. The geopolymer battery is formed by sequentially stacking and pouring a geopolymer positive electrode layer, a geopolymer electrolyte layer and a geopolymer negative electrode layer. The three layers all comprise regenerated brick-mixed micro-powder and metakaolin. The preparation method comprises the following steps: preparing geopolymer positive electrode layer slurry, geopolymer electrolyte layer slurry and geopolymer negative electrode layer slurry respectively; sequentially pouring the positive electrode layer, the electrolyte layer and the negative electrode layer, and vibrating and standing each layer after pouring according to preset parameters, and arranging copper-plated steel fibers in the whole structure by a magnetic field; and curing and coating the whole structure. The geopolymer battery has excellent conductivity, load capacity and interlayer bonding strength, and the whole structure is stable.

To provide an alkaline battery in which a negative electrode mixture is less likely to leak.SOLUTION: An alkaline battery 1 includes: a bottomed cylindrical positive electrode can 2 having a bottom face on which a positive electrode terminal is formed; a cylindrical positive electrode mixture 3 provided inside the positive electrode can 2; a cylindrical separator 7 provided on the inner peripheral side of the positive electrode mixture 3; a negative electrode mixture 5 filling the inner peripheral side of the separator 7; a current collector rod 6; a gasket 14 having a support part 41 and an annular outer peripheral part 42 and closing an opening 18 of the positive electrode can 2; a negative electrode terminal plate 12 provided opposite the separator 7 with the gasket 14 sandwiched therebetween; a first facing part 421 facing the inner peripheral surface 7a of the separator 7 at an end on the negative electrode terminal plate 12 side; and a second facing part 422 facing the outer peripheral surface 7b of the separator 7 at an end on the negative electrode terminal plate 12 side. A buffer part 43 is formed on the outer peripheral part 42, and the first facing part 421 and the second facing part 422 are provided at positions avoiding the buffer part 43 as viewed along the central axis C of the positive electrode can 2.SELECTED DRAWING: Figure 2

The utility model discloses a carbon rod pressure-compensating bow rod, and relates to the technical field of dry cell carbon rod loading equipment. The utility model comprises a driving part and a pressure-compensating part; the pressing end of the pressure-compensating part is configured with a carbon rod passing groove and a horizontally penetrating powder discharge channel, the carbon rod passing groove is connected to the powder discharge channel, and the bottom surface of the powder discharge channel serves as a carbon powder collecting part; the problem that the existing carbon rod pressing equipment cannot clean and discharge the carbon powder surface while compressing the carbon powder is solved.

Systems, apparatuses, and / or the like are provided. In some embodiments, an electrochemical cell may include a container, a ring-shaped cathode disposed within the container, wherein the ring-shaped cathode defines an open interior, an anode disposed within the open interior of the ring-shaped cathode, a separator disposed between the cathode and the anode, an electrolyte solution, and a current collector electrically connected with a portion of the container, wherein the current collector is positioned at least partially within the anode. For example, current collectors may include a base including a first material that is fixedly attached to the portion of the container and a zinc component composed of a second material and fixedly attached to the base.

To suppress the amount of release agent added to a positive electrode in order to prevent a positive electrode from cracking when the positive electrode is removed from a molding die.SOLUTION: A battery manufacturing method includes granulating a first powder containing manganese dioxide MnO2 and graphite C, separating the first powder into a plurality of second powders having different particle sizes, separating each of the plurality of third powders from the plurality of second powders, generating a positive electrode mixture by mixing the plurality of third powders, and molding the positive electrode mixture into a positive electrode.SELECTED DRAWING: Figure 2

To provide a battery capable of improving structural efficiency with a simple structure.SOLUTION: A battery includes an electrode laminate. End face current collectors are disposed on both surfaces of the direction of lamination of the electrode laminate. Internal current collectors are laminated inside the electrode laminate. Each internal current collector has a connection part extending from the side surface of each electrode laminate. The connection part extends in the direction of lamination along the side surface of the electrode laminate and is arranged on the same surface as at least one end-surface current collector.SELECTED DRAWING: Figure 1

A negative electrode mixture layer (12b) has an extension section (38) that extends to the winding starting side from the winding inside of a starting end (40) on the winding starting side of a positive electrode (11). A first distance (d1) between the center (40a) of the starting end (40) in the width direction and a mixture layer starting end (50) on the winding starting side of the negative electrode mixture layer (12b) is greater than at least one of a second distance (d2) between one end (40b) of the starting end (40) in the width direction and the mixture layer starting end (50), and a third distance (d3) between the other end (40c) of the starting end (40) in the width direction and the mixture layer starting end (50).

The invention discloses efficient preparation equipment for KOH electrolyte of an alkaline battery, which comprises a stirring preparation module, a cooling module, an electrolyte storage module and an operation platform, the operation platform comprises a longitudinal aisle and a plurality of transverse aisles, and the plurality of transverse aisles are uniformly distributed at intervals along the longitudinal direction and are vertically butted with the longitudinal aisle to form a latticed channel; the two sides of the end, close to the longitudinal aisle, of each transverse aisle are each provided with a stirring and preparing module, and a plurality of electrolyte storage modules are arranged on the same side of each stirring and preparing module at intervals in the direction of the transverse aisles. And the urgent demand of the alkaline battery industry on a high-end electrolyte preparation system is met.

This primary battery comprises a positive electrode containing 2,5-dimethoxy-1,4-benzoquinone, a negative electrode, and an electrolyte disposed between the positive electrode and the negative electrode. The electrolyte contains a C18-22 alkyl glucoside.

The present invention relates to a soft-pack button battery, comprising a pole core and a soft-pack shell; the soft-pack shell comprises a shell that wraps the pole core and a sealing edge that seals the shell; the sealing edge comprises a top seal located at one end face of the pole core, and a first side seal and a second side seal located at both sides of the pole core respectively; the first side seal and the second side seal are respectively attached to the outer periphery of the shell; the pole core is formed by winding a first pole piece, a diaphragm and a second pole piece, and the first pole piece and the second pole piece have opposite polarities; a first pole ear is led out from the first pole piece, and the first pole ear passes through the soft-pack shell from the top seal; a second pole ear is led out from the second pole piece, and the second pole ear passes through the soft-pack shell from the first side seal along the tangent direction of the pole core, and the part of the second pole ear exposed from the soft-pack shell comprises a side pole ear section attached to the outer periphery of the shell and a transfer pole ear section connected to one end of the side pole ear section, and the transfer pole ear section is led out in the same direction as the first pole ear. The width of the soft-pack button battery of the present invention is less than 7 mm, and can be made into a soft-pack button battery of smaller size.