Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

116 results about "Alkaline battery" patented technology

An alkaline battery (IEC code: L) is a type of primary battery which derives its energy from the reaction between zinc metal and manganese dioxide. Compared with zinc-carbon batteries of the Leclanché cell or zinc chloride types, alkaline batteries have a higher energy density and longer shelf life, yet provide the same voltage.

Automatic mixing system for alkaline batteries

The invention discloses an automatic mixing system for alkaline batteries. A main material weighing station is provided with a main material tank, a main material weighing platform and a main material cup; the auxiliary material weighing device is provided with an auxiliary material tank, an auxiliary material weighing table and an auxiliary material cup; an automatic mixing tank is mounted between the auxiliary material weighing table and the main material weighing table, a main material manipulator is mounted on the side surface of the main material weighing table, and an auxiliary material manipulator is mounted on the side surface of the auxiliary material weighing table; the automatic mixing tank is communicated with the electrolyte tank through a spraying pipe, the electrolyte tank is placed on the electrolyte weighing table, and a servo pump is mounted on the spraying pipe; a finished product barrel conveying mechanism is installed below the automatic mixing tank, a finished product barrel is placed on the finished product barrel conveying mechanism, and a finished product weighing table is installed below the finished product barrel conveying mechanism in a lifting mode. The device is compact in structure, full-automatic batching in a laboratory is realized, and the experimental efficiency and the accuracy and credibility of experimental data are improved.
Owner:FUJIAN NANPING NANFU BATTERY

Alkaline battery steel shell high-speed coating production line

The utility model discloses an alkaline battery steel shell high-speed coating production line which comprises a steel shell conveying and sequencing system, a steel shell coating machine, a conducting film spraying system, a drying device and a detecting device. The steel shell conveying and sequencing system, the steel shell coating machine, the drying device and the detection device are sequentially arranged from front to back, the conductive film spraying system is located on the side face of the steel shell conveying and sequencing system, production efficiency is improved, the defective product rate is reduced, manual dependence is reduced, meanwhile, stability and consistency of product quality are ensured, equipment layout is optimized, and the production cost is reduced. The occupied production space is reduced, the environmental adaptability of the production line is enhanced, the flexibility and the market response speed of the production line are improved, and the requirements of the modern battery manufacturing industry for high-efficiency and high-quality production are met.
Owner:ZHEJIANG CAMELION ELECTRONICS IND CO LTD

A diazene-based organic negative electrode material for aqueous alkaline batteries and its application

The present invention discloses a diazine-based organic negative electrode material for aqueous alkaline batteries and its application, relating to the field of battery technology. This type of organic negative electrode has an electrochemical redox active center with a nitrogen-nitrogen double bond (N=N), including but not limited to azobenzene; azobenzene modified with at least one of halogen, methyl, and nitro functional groups; benzo[c]cinnoline; and benzo[c]cinnoline modified with at least one of halogen, methyl, and nitro functional groups. The organic negative electrode material provided by the present invention can operate stably under various alkaline conditions and is compatible with nickel hydroxide positive electrodes and air positive electrodes. The material has excellent rate performance and long-term cycle stability, and its wide source makes it suitable for large-scale application.
Owner:NANKAI UNIV

Low-temperature-resistant electrolyte for alkaline batteries and preparation method thereof

The application discloses a low-temperature-resistant electrolyte for alkaline batteries and a preparation method thereof, and relates to the technical field of electrolytes. The application comprises the following raw materials in mass fraction: glycerol triacetate 11-13 parts, potassium hydroxide aqueous solution 100-150 parts, fluorine-containing additive 1-5 parts, and organic dispersion 21.3-28 parts; the organic dispersion is prepared from ethylene glycol, tetrabutylammonium trifluoromethanesulfonate, hybrid nanosheet and glycerol triacetate. The hybrid nanosheet prepared from hexagonal boron nitride, cerium ammonium nitrate, urea and polyethylene glycol 400 effectively improves the ion conductivity and cycle stability maintenance rate of the electrolyte at low temperature. The introduction of the components such as glycerol triacetate and fluorine-containing additive in the application further improves the performance maintenance rate of the electrolyte at low temperature, and simultaneously reduces the viscosity of the electrolyte at low temperature. Therefore, the application has a more extensive application prospect.
Owner:SHANDONG HUATAI NEW ENERGY BATTERY CO LTD

Alkaline battery closure device

The utility model discloses an alkaline battery sealing device relates to battery production processing technical field, including sealing device ontology, and the workstation is provided with the fixed lower mould, and the fixed lower mould is installed with the elastic cover, and the workstation is installed with the supporting block, and the output of guide telescopic link is installed with the fixed plate, and the fixed plate is installed with the push rod, and the push rod is rotatably installed with the connecting rod, and the other end of connecting rod is rotatably installed with the rotating rod, and the rotating rod is installed with the gear ring, and the gear ring is installed with the gear and engages, and the workstation is rotatably installed with the pivot, and the gear is fixed and is connected on the pivot, and the L type piece is installed with the torsion spring, and the other end of torsion spring is installed on the ratchet pawl, and the pivot top is installed with the knob, and the knob is installed with a plurality of circumferential array's rotation block, the utility model discloses, can be sealed alkaline battery clamped fixed and adapt to different size's alkaline battery, and the ratchet pawl will be clamped in the gear gap of ratchet wheel, can hinder the clockwise rotation of ratchet wheel, and the sealing of alkaline battery is relatively stable.
Owner:SHENZHEN PKCELL BATTERY CO LTD

High-humidity-resistant and anti-corrosion alkaline battery positive electrode composite conductive material and preparation method thereof

The invention relates to the technical field of alkaline batteries, in particular to a high-humidity-resistant and anti-corrosion alkaline battery positive electrode composite conductive material and a preparation method thereof. The positive electrode composite conductive material comprises 50-70 parts of modified carbon nanotubes, 20-30 parts of crystalline flake graphite, 5-15 parts of molybdenum-doped SnO, 3-8 parts of a binder and 0.5-2 parts of conductive carbon black. The material is particularly suitable for high-humidity and strong-alkali environments (such as ocean equipment batteries and tropical region energy storage systems), has long service life and high output efficiency, and overcomes the defects that a traditional conductive material is easy to corrode and rapid in conductivity attenuation. The preparation method disclosed by the invention is simple and convenient to operate and clear in flow, does not need complex equipment and special process conditions, reduces the production cost and the production difficulty, is easy to realize industrial production, and is beneficial to popularization and application of the technology.
Owner:JIAXING HENGWEI BATTERY

Aquadag for alkaline battery and application of aquadag

The invention discloses aquadag for an alkaline battery and application of the aquadag. The aquadag comprises the following raw materials in percentage by weight: 12-16% of graphite powder, 5-8% of conductive carbon black, 1-2% of graphene, 15-18% of epoxy resin, 30-50% of butanone and 10-20% of cyclohexanone. The preparation method of the aquadag comprises the following steps: (1) uniformly stirring butanone and cyclohexanone to obtain a composite solvent; (2) adding solid epoxy resin into the composite solvent, and stirring at 800-1000 rpm to completely dissolve the solid epoxy resin; (3) slowly adding graphite powder and conductive carbon black graphene into the composite solvent, and dispersing at a high speed of 1100-1200 rpm for 45-50 min to obtain a mixture; and (4) carrying out ball milling on the mixture, sieving with a 200-mesh sieve, and discharging to obtain the aquadag. The graphene is doped into the aquadag, so that the technical effect of improving the comprehensive performance of the battery is achieved.
Owner:FUJIAN NANPING NANFU BATTERY +1

Method for producing an electrode, electrode, alkaline battery, and uses of the alkaline battery

PendingUS20260088271A1Filling tube/pocket electrodesElectrode carriers/collectorsPlanar electrodeGalvanic cell
Disclosed are a method for producing an electrode for a galvanic cell, an electrode for a galvanic cell, a galvanic cell, and uses of the galvanic cell. The method comprises: applying a separator membrane to a planar electrode such that an intermediate space is formed between the planar electrode and the separator membrane; subsequently applying a liquid comprising a particular material to the separator membrane, wherein the liquid comprising material penetrates, by way of capillary forces, at least into the pores of the separator membrane, into the intermediate space between the planar electrode and the separator membrane and into pores of the planar electrode, wherein the liquid is subsequently evaporated. The method makes it easily and inexpensively possible to provide an electrode which exhibits a high energy density at the cell level and high chemical, electrochemical and mechanical stability, exhibits high cycle stability and allows high operating currents.
Owner:FRAUNHOFER GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG EV

Alkaline battery

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
Owner:FDK CORP

Hybrid material anode current collector for alkaline batteries

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.
Owner:ENERGIZER BRANDS LLC

Alkaline battery sealing glue coating device

The utility model discloses an alkaline battery sealing glue coating device, which relates to the technical field of glue coating devices and comprises a bottom plate, the top end of the bottom plate is fixedly connected with a mounting frame, one side of the mounting frame is slidably connected with a lifting block, and one side of the lifting block is fixedly connected with a protective sleeve. By the adoption of the structure, the driving assembly is installed on the lifting block, the glue outlet pipe can be driven by the driving assembly to rotate below the glue guide pipe, the glue outlet pipe drives the glue outlet head to rotate, glue rotates in the glue outlet head, and therefore the effect of even distribution is achieved, and it can be guaranteed that the glue is evenly distributed in the spraying process; the glue can uniformly cover the battery sealing position, the situation that the glue is not uniformly distributed or missed is avoided, compared with a traditional fixed glue outlet head and a rotary glue outlet head, the spraying efficiency can be remarkably improved, the glue outlet channels are formed in the bottom of the glue outlet head, and the uniform coating capacity of the sealing glue at the battery sealing position can be remarkably improved.
Owner:LIANZHOU LINGLI BATTERY ACCESSORIES CO LTD

Efficient preparation equipment for KOH electrolyte of alkaline battery

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.
Owner:ZHEJIANG CAMELION ELECTRONICS IND CO LTD

Portable lighting device

A portable lighting device includes a housing, a light source supported by the housing, and an alkaline battery positioned within the housing and coupled to the light source. The alkaline battery is configured to provide a drive current to the light source, and an intensity of the light source is dependent on the drive current. The portable lighting device also includes an electronic processor positioned within the housing and coupled to the light source and the alkaline battery. The electronic processor is configured to monitor a voltage of the alkaline battery, and execute a ramp-up algorithm to control the drive current based on the voltage of the alkaline battery.
Owner:MILWAUKEE ELECTRIC TOOL CORP

Integrated universal battery box assembly for servo driver and servo driver

The integrated universal battery box assembly comprises a base body and a battery box cover, a battery bin used for containing a battery and a circuit board are arranged in the base body, the battery bin comprises a containing cavity used for containing at least one alkaline battery, and the circuit board is arranged in the containing cavity. The circuit board is provided with an alkaline battery output end and a lithium battery output end, the alkaline battery can be electrically connected with the alkaline battery output end through an alkaline battery pole piece, and the lithium battery is electrically connected with the lithium battery output end. A battery box output end is arranged on an outer side plate of the base body, the battery box output end is electrically connected with the circuit board, and when the universal battery box assembly is installed in the servo driver, the outer side plate of the universal battery box assembly is flush with a driver main panel of the servo driver. The structure space of the servo driver is remarkably saved, an operator can conveniently replace an external power supply, and meanwhile the servo driver has wide universality.
Owner:BEIJING KND AUTOMATION TECH CO LTD

Safety detection device for alkaline battery production

The utility model discloses a safety detection device for alkaline battery production, which relates to the technical field of alkaline battery detection and comprises a base, a detection box is fixedly mounted at the top of the base, and a support frame is fixedly mounted in the middle of the rear side of the detection box. By adopting the structure, the device is provided with the detection mechanisms, so that during use, the first motor can be started to drive the turntable to rotate, so that the detection mechanisms on the outer side can alternately change positions, and when stamping detection is needed, the electric push rod pushes the stamping block at the bottom of the pressure sensor to apply pressure to an alkaline battery, and the pressure sensor monitors the pressure in real time; the stamping blocks at the bottoms of the mounting blocks are different in shape, the first motor is driven to rotate the rotary table, the positions of the stamping blocks can be adjusted, different detection requirements can be met, the mounting blocks can be detached if the stamping blocks need to be replaced and the hand-twisting type screw rods are twisted, convenient replacement is achieved, and the detection flexibility and comprehensiveness are improved.
Owner:LIANZHOU LINGLI BATTERY ACCESSORIES CO LTD

Fluorene-based ionomer containing long alkyl side chains, method for preparing the same, and use thereof in anion exchange membranes

PendingCN122302199AIonomerPolymer science
A fluorene-based ionomer containing long alkyl side chains, its preparation method, and its application in anion exchange membranes. This invention belongs to the field of fluorene-based ionomers and their preparation. The purpose of this invention is to solve the technical problem that existing anion exchange membranes based on polymers constructed from ether-free polyfluorene backbones and quaternary ammonium salt cations cannot achieve an optimal balance between mechanical and ion conductivity. This invention introduces long alkyl side chains of a specific length onto a highly rigid fluorene-based polymer backbone, constructing a molecular structure that combines rigidity and flexibility, thereby significantly improving the overall performance of the anion exchange membrane. The resulting fluorene-based ionomer containing long alkyl side chains is applied as an anion exchange membrane component in the field of fuel cell alkaline batteries.
Owner:HEILONGJIANG UNIV

Wire pressing device for alkaline battery production

The utility model discloses a wire pressing device for alkaline battery production, which relates to the field of wire pressing for alkaline battery production and comprises a bottom plate, a servo motor is fixedly mounted on one side of the bottom of the bottom plate, a rotating disc is fixedly mounted on an output shaft of the servo motor, a plurality of placing grooves are uniformly formed in the outer ring of the rotating disc, and the placing grooves are arranged in the bottom of the bottom plate. A plurality of second electric push rods are fixedly installed in the multiple placing grooves, a plurality of abutting columns are fixedly installed in the multiple placing grooves, a storage box is fixedly installed on one side of the bottom plate, and a guide slope is fixedly installed at the position, located on one side of the rotating disc, of the upper end of the bottom plate; an air cylinder is fixedly installed at the end, away from the rotary disc, of the upper end of the bottom plate, a fixing frame is fixedly installed on an output shaft of the air cylinder, and a second motor is fixedly installed at the bottom of the end, away from the output shaft of the air cylinder, of the fixing frame. By the adoption of the structure, the battery cases are guided into the storage box through the guide slope, and the collection effect is effectively improved.
Owner:LIANZHOU LINGLI BATTERY ACCESSORIES CO LTD

High-temperature-resistant alkaline battery

The utility model relates to the field of alkaline batteries, in particular to a high-temperature-resistant alkaline battery which comprises a steel shell, a heat dissipation protection assembly is arranged on the outer wall of the steel shell, and the heat dissipation protection assembly comprises the protection sleeve, a first groove body, a second groove body, a fixing needle, a heat conduction sheet and a heat conduction groove; a protective sleeve is fixedly connected to the outer wall of the steel shell, a groove is formed in the upper end of the steel shell, and a protruding block at the upper end of the protective sleeve is placed in the groove. According to the heat dissipation protection assembly, through the heat conduction grooves formed in the heat conduction pieces, the contact area between the heat dissipation protection assembly and air is increased, the positions, close to the outer wall of the steel shell, of the heat conduction pieces are attached to the outer wall of the steel shell, the temperature on the surface of the battery is dissipated through the four heat conduction pieces, and therefore the high-temperature resistance of the battery is improved; and then a plurality of fixing needles are plugged into a second groove body, and the strength of the protective sleeve is improved, so that the risk of liquid leakage caused by overall deformation of the battery when the battery is collided by external force is prevented.
Owner:CHONGQING LIANGJIANG JIAHUA ENERGY CO LTD

Composite membranes of specially reinforced fluorine-containing proton or ion exchange membranes, composite membrane electrodes, specially reinforced fluorine-chlorine-containing alkaline battery membranes, special release membranes, and methods for manufacturing the same.

To provide a composite membrane of a special highly-enhanced fluorine-containing proton or ion exchange membrane, a composite membrane electrode, and a fluorine-containing chlor-alkali battery membrane which are not contaminated by a release agent, and have heat resistance, improved tensile strength, and improved dimensional stability, and also to provide a preparation method of the membranes which reduces production cost and uses no release agent.SOLUTION: A composite membrane of a special highly-enhanced fluorine-containing proton or ion exchange membrane comprises at least two microporous enhancement membranes, wherein both sides of each microporous enhancement membrane are filled with a fluorine-containing proton or ion exchange resin, the composite membrane has tensile strength in both directions >40 MPa, room-temperature ionic conductivity >0.007 S / cm, and extremely low air permeability, and it is measured using a Gurley permeability tester that the time required for 100 ml of air to penetrate through the composite membrane is >5 minutes.SELECTED DRAWING: None
Owner:ZHEJIANG HYPROOF NEW ENERGY CO LTD +2

Superionic conductor electrolyte and preparation method thereof, hybrid superionic conductor electrolyte, quasi-solid flexible superionic conductor electrolyte, alkaline battery superionic conductor electrolyte and energy storage device

The present application relates to the technical field of ionic liquid and new energy battery electrolyte composite, in particular to superionic conductor electrolyte and its preparation method, hybrid superionic conductor electrolyte, quasi-solid flexible superionic conductor electrolyte, alkaline battery superionic conductor electrolyte and energy storage equipment. The superionic conductor electrolyte includes ionic liquid [A]X, wherein [A] is derived from choline or its halide, and X is derived from pyrimidine carboxylic acid derivative. The superionic conductor electrolyte has super-high ionic conductivity, thermal stability, electrochemical stability, non-volatility and non-flammability; has the dual nature of super-high ionic conductor and green solvent, and can completely replace volatile organic solvent as green solvent, thereby improving the safety, stability and green environmental protection of battery electrolyte. It has the characteristics of wide temperature range ionic liquid electrolyte, meets and exceeds the ideal low-temperature electrolyte standard, and is suitable for the application of battery electrolyte, supercapacitor electrolyte and electrochemical sensor.
Owner:YIMEILAI (GUANGZHOU) MEDICAL TECH CO LTD

Alkaline dry battery

This alkaline dry battery comprises a positive electrode, a negative electrode, a separator, and an electrolytic solution. The negative electrode contains zinc alloy particles as a negative electrode active material. The electrolytic solution contains a linear aliphatic secondary amine as an additive. The number of carbon atoms included in the linear aliphatic secondary amine is in the range of 3-13.
Owner:PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD

Alkaline battery safety performance testing device

The utility model discloses an alkaline battery safety performance testing device, which comprises a conveying mechanism, a detecting mechanism and a clamping and positioning mechanism, the conveying mechanism comprises a conveying belt and a driving assembly, and two ends of the conveying belt are respectively sleeved on the outer walls of a driving roller and a driven roller; the driving assembly comprises a motor and a speed reducer, an output shaft of the motor is fixedly connected with the input end of the speed reducer through a coupler, the output end of the speed reducer is fixedly connected with one end of the driving roller, and a plurality of limiting grooves are formed in the conveying belt at equal intervals. And elastic cushion layers are bonded to the inner walls of the limiting grooves, the positions of the alkaline batteries can be effectively fixed, shaking or displacement of the alkaline batteries in the conveying process is avoided, the stability of the detection process is improved, meanwhile, the clamping force can be automatically adjusted according to the sizes of the alkaline batteries, and the safety and reliability of the clamping process are ensured.
Owner:NANPING TIMES IND GROUP CO LTD

Conveying device for alkaline battery production

The utility model discloses a conveying device for alkaline battery production, which relates to the technical field of conveying devices and comprises a fixing frame, a conveying belt is rotatably connected to the inner side of the fixing frame, and a plurality of placing boxes are fixedly connected to the conveying belt. By the adoption of the structure, the multiple containing boxes are installed on the conveying belt, alkaline batteries are placed in the containing boxes, the first power assembly is used for driving the limiting rods to move, the limiting rods move to the positions above the alkaline batteries for limiting, it is guaranteed that the batteries are arranged on the conveying belt in order, the shutdown adjustment time caused by rolling of the batteries is shortened, and the working efficiency is improved. Therefore, the overall production efficiency is remarkably improved, mutual collision or extrusion of the batteries in the conveying process can be prevented, the risk of battery damage is greatly reduced, the perfectness ratio and the final quality of products are improved, a heat dissipation assembly is installed on the containing box, the temperature in the containing box is adjusted, and it is ensured that the batteries are placed in a proper temperature range.
Owner:LIANZHOU LINGLI BATTERY ACCESSORIES CO LTD

Alkaline battery and method for manufacturing alkaline battery

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.
Owner:SEIKO INSTR INC

Alkaline storage battery

This invention provides an alkaline battery with excellent reliability. The alkaline battery of this invention includes a positive electrode, a negative electrode, a spacer between the positive and negative electrodes, and an alkaline electrolyte. The negative electrode comprises a hydrogen storage alloy capable of electrochemically absorbing and releasing hydrogen. The surface layer of the spacer on the side opposite the negative electrode comprises hydrophobic carbon fibers.
Owner:PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD

Electrolyte surfactant composition for metal-air and alkaline batteries

A metal-air battery can include an air cathode, a metal anode, and an electrolyte including a surface-modified surfactant. The electrolyte for a metal-air battery can include a surface-modified surfactant, and the surface-modified surfactant can include polyethylene glycol (PEG), monoalkyl polyethylene glycol, or a combination thereof.
Owner:ENERGIZER BRANDS LLC

Alkaline battery, and method for manufacturing gasket for alkaline battery

This nickel hydrogen secondary battery 2 comprises an outer can 10 having an opening on the upper edge thereof, an electrode group 22 accommodated together with an alkaline liquid electrolyte within the outer can 10, and a sealing body 11 secured by crimping to the opening portion of the outer can 10 with a gasket 12 interposed therebetween, the gasket 12 containing a polyamide resin having a weight-average molecular weight of 40,000 or greater.
Owner:FDK CORP