26results about "Silver accumulators" patented technology

Provided is a hydroxide ion-conducting separator excellent in alkali resistance and capable of further effectively suppressing short circuiting caused by zinc dendrites. The LDH compound separator includes a porous substrate made of a high molecular material and a layered double hydroxide (LDH) compound that seals the pores of the porous substrate. The average porosity of the central portion in the thickness direction of the LDH compound separator is lower than the average porosity of the portion near the surface of the LDH compound separator.

A zinc battery 1 comprises an electrode group 10. The electrode group 10 comprises alternately layered negative electrodes 12 and positive electrodes 14. The negative electrodes 12 include negative electrodes A1–A3 as first through third negative electrodes counted from one end side in the layering direction of the negative electrodes 12 and the positive electrodes 14 of the electrode group 10, and the negative electrodes A1–A3 include negative electrode materials a11, a12, a21, a22, a31, and a32 that contain an active material that includes zinc, the mass of the active material of the negative electrode A2 being greater than the mass of the active material of the negative electrode A3.

Provided is a highly reliable button-shaped alkaline battery having excellent load characteristics. A button-shaped alkaline battery includes: a positive electrode having a positive electrode mixture layer containing a silver oxide and a conductive assistant; a negative electrode containing zinc particles; an alkaline electrolyte solution; and a battery container for accommodating the positive electrode, the negative electrode, and the alkaline electrolyte solution, the battery container including an outer can, a sealing plate, and a resin gasket. The positive electrode mixture layer contains carbon black and graphite particles as the conductive assistant, and an amount of water in the battery container is 0.63 to 1 g per 1 g of the zinc particles of the negative electrode.

The invention relates to the field of electrochemical generators, in particular alkaline generators, and more particularly to that of accumulators. It especially relates to secondary generators with a zinc anode. It relates in particular to a method for preparing an electrochemical generator, comprising the steps of: • assembling a hydrophobic membrane with a cathode and a zinc anode, and then • adding an electrolyte which is an alkaline aqueous solution comprising at least one wetting agent and at least one antifoaming agent. The invention also relates to an electrochemical generator obtained by the method according to the invention.

Provided is a highly reliable button-shaped alkaline battery having excellent load characteristics. A button-shaped alkaline battery includes: a positive electrode having a positive electrode mixture layer containing a silver oxide and a conductive assistant; a negative electrode containing zinc particles; an alkaline electrolyte solution; and a battery container for accommodating the positive electrode, the negative electrode, and the alkaline electrolyte solution, the battery container including an outer can, a sealing plate, and a resin gasket. The positive electrode mixture layer contains carbon black and graphite particles as the conductive assistant, and an amount of water in the battery container is 0.63 to 1 g per 1 g of the zinc particles of the negative electrode.

This invention relates to a PbS-modified AgO cathode material, its preparation method, and a zinc-silver battery, belonging to the field of zinc-silver battery technology. The PbS content is 1% to 5% of the AgO cathode material's mass, and it is prepared by wet mixing and ball milling. Adding PbS to the AgO cathode material and ball milling it to generate PbSO4 not only inhibits the decomposition of AgO during ball milling but also inhibits the decomposition of AgO during aging. This cathode material can extend the battery's lifespan during long-term storage of zinc-silver batteries.

Provided is a secondary battery having a zinc negative electrode enhanced in charge / discharge continuity. The secondary battery 10 having a zinc negative electrode according to an embodiment includes a positive electrode 20 having a metal fiber sheet, a negative electrode 30 containing zinc, and an electrolytic solution 40 having at least one or more types of supporting electrolytes dissolved therein. The total concentration of the supporting electrolytes is 5 mass% or more and 50 mass% or less based on the entire electrolytic solution.

Disclosed herein are materials for use in battery separators. They include copolymers of a divinylbenzene and one or both of the monomers below (non-linked and linked). R is an n-alkylene group, and n is a positive integer. The copolymer made be made from tertiary amine monomers that are converted to quaternary amines. One battery includes a zinc anode, a silver cathode, and a tri-layer separator. The inner layer uses the linked monomer, and the outer layers use the non-linked monomer.

To provide an electrolyte for a zinc battery capable of obtaining excellent life performance in the zinc battery.SOLUTION: An electrolyte for a zinc battery includes an alkali metal hydroxide, and an organic compound having at least one selected from the group consisting of a carboxyl group, a carboxylic acid group, an ether group, and a hydroxy group (excluding polyoxyethylene octylphenyl ether and polyoxyethylene alkyl ether phosphate).SELECTED DRAWING: None

The invention provides a zinc secondary battery which has good battery resistance and is capable of effectively suppressing electrolyte leakage caused by a creep phenomenon. This zinc secondary battery is provided with: a positive electrode plate including a positive electrode active material layer and a positive electrode current collector; a negative electrode plate including a negative electrode active material layer including at least one selected from the group consisting of zinc, zinc oxide, zinc alloys, and zinc compounds, and a negative electrode current collector; a hydroxide ion conduction separator which separates the positive electrode plate and the negative electrode plate in a hydroxide ion conduction manner; and an electrolyte solution. The electrolyte solution is an aqueous solution containing an alkali metal hydroxide, the alkali metal hydroxide containing at least sodium hydroxide, the total concentration of the alkali metal hydroxide in the electrolyte solution being 5.0-6.0 mol / L, and the concentration of sodium hydroxide in the electrolyte solution being 0.5-6.0 mol / L.

The invention relates to the field of electrochemical generators, particularly alkaline generators, and more especially to batteries. It is specifically related to secondary generators with a zinc anode. It relates in particular to a method for preparing an electrochemical generator, comprising the steps of: assembling a hydrophobic membrane with a cathode and an anode, and then adding an electrolyte comprising at least one wetting agent and at least one antifoaming agent. The invention also relates to an electrochemical generator obtained by the method according to the invention. Figure for the abstract: Figure 3

The alkaline battery of the present invention includes, as power generation components, a positive electrode containing silver oxide as a positive electrode active material, a negative electrode, a separator, and an alkaline electrolyte solution. At least one of the power generation components contains tellurium or a compound of tellurium. The total content of tellurium element contained in components housed in the battery is 0.4 parts by mass or more with respect to 100 parts by mass of the total amount of silver element in the positive electrode active material. The positive electrode is substantially free of cadmium.

The alkaline battery of the present invention includes, as power generation components, a positive electrode containing silver oxide as a positive electrode active material, a negative electrode, a separator, and an alkaline electrolyte solution. At least one of the power generation components contains tellurium or a compound of tellurium. The total content of tellurium element contained in components housed in the battery is 0.4 parts by mass or more with respect to 100 parts by mass of the total amount of silver element in the positive electrode active material. The positive electrode is substantially free of cadmium.

To provide a button-type alkaline battery with excellent battery characteristics such as discharge characteristics and storage characteristics. [Solution] The button-type alkaline battery of the present invention has a positive electrode containing silver oxide as a positive electrode active material, a negative electrode, and a separator that separates the positive electrode and the negative electrode, and is characterized in that the separator and an annular separator are arranged on top of each other at the periphery of the positive electrode.

Disclosed herein are materials for use in battery separators. They include copolymers of a divinylbenzene and one or both of the monomers below (non-linked and linked). R is an n-alkylene group, and n is a positive integer. The copolymer made be made from tertiary amine monomers that are converted to quaternary amines. One battery includes a zinc anode, a silver cathode, and a tri-layer separator. The inner layer uses the linked monomer, and the outer layers use the non-linked monomer.

This invention discloses an automated system and method for preparing zinc-silver battery positive electrode plates, belonging to the technical field of battery manufacturing equipment. Addressing the challenges in zinc-silver battery positive electrode plate preparation, such as powder stratification and agglomeration, plate fragility, long sintering cooling time, and low detection accuracy, this invention proposes the following innovations: Powder weighing utilizes a combined rotary screw and belt feeding system, achieving non-extrusion and flipping conveying and low-drop-height flat laying, avoiding cold welding of silver powder and silver-carbon stratification; preheating the mold before pressing improves density uniformity; sintering employs a double-layer circulating tunnel furnace with an air-cooled outlet unit, shortening cooling time; the robotic arm end uses a flexible suction cup and S-curve acceleration / deceleration control to achieve damage-free transfer of fragile plates; and integrated detection includes weighing, five-point coaxial thickness measurement, and deep learning appearance recognition, significantly improving detection accuracy. This invention achieves full-process automation, increasing production efficiency, reducing labor costs, lowering scrap rates, and significantly improving product consistency and reliability.

The description relates to a battery device, comprising: - electrodes comprising an anode and a cathode, and - an electrolyte, between the electrodes, comprising a crystalline material of composition M2B2O5.x(HOH).y(NOH), where M and N are alkali or hydrogen elements or mixtures of alkali or hydrogen elements, B is titanium, O and H denote respectively the elements oxygen and hydrogen, and x and y are between 0 and 4 and denote a presence of H+, OH-, N+ ions, capable of migrating in the crystalline material. In particular, at least one type of ion among H+, OH-, N+ and M+ is mobile to migrate in the crystalline material towards at least one of the electrodes, and said at least one of the electrodes is made of a material capable of operating a chemical interaction with at least one of the H+, OH-, M+ and N+ ions. Abstract Figure: Figure 5

The invention relates to the field of electrochemical generators, in particular alkaline generators, and more particularly to the field of storage batteries. The invention relates in particular to a secondary generator employing a zinc anode. The preparation method of the electrochemical generator comprises the following steps: assembling a hydrophobic membrane, a cathode and a zinc anode; an electrolyte comprising at least one wetting agent and at least one defoaming agent is added. The invention also provides an electrochemical generator obtained by the method of the invention.

To provide a zinc battery electrolyte capable of realizing an excellent life performance in a zinc battery.SOLUTION: A zinc battery electrolyte contains an alkali metal hydroxide, and a compound represented by a general formula (1) in the figure excluding polyoxyethylene octylphenyl ether. [In the formula (1), n represents an integer from 1 to 10; and R1 and R2 each independently represent an organic group, a hydrogen atom or a metal atom, where if n=1 then at least one of R1 and R2 represents an organic group.]SELECTED DRAWING: None

The present specification relates to a battery device comprising:-electrodes comprising an anode and a cathode, and-an electrolyte between the electrodes comprising a crystalline material having the composition M2B2O5. X (HOH). Y (NOH), where M and N are alkali metals or hydrogen or mixtures of alkali metals or hydrogen, B is titanium, O and H represent the elements oxygen and hydrogen, respectively, and x and y are 0 to 4 and represent the presence of H +, OH-, N + ions capable of migrating in the crystalline material, in particular at least one of H +, OH-, N + and M + ions is movable to migrate within the crystalline material to at least one electrode, and the at least one electrode is made of a material adapted to chemically interact with at least one of the H +, OH-, N + and M + ions.

The utility model discloses a low-current constant-current discharge silver oxide button cell which comprises a positive pole shell, a first soldering lug is fixedly connected to the outer side of the positive pole shell, a protective shell is fixedly connected to the interior of the positive pole shell, and a polyethylene-acrylic acid grafting film is fixedly connected to the interior of the first soldering lug. Silver oxide used by a positive electrode filler material in the battery is granulated, that is, the silver oxide is granulated, the porosity of silver oxide particles is high, electrolyte is easy to transfer, the battery can maintain discharge in a high-voltage region and the discharge time is prolonged, and the used diaphragm comprises three layers, namely, one layer of polyethylene-acrylic acid grafted film and two layers of cellophane, so that the service life of the battery is prolonged. The polyethylene-acrylic acid grafted film is in contact with the positive electrode cake, the glass paper is in contact with the negative electrode filler, the negative electrode filler is zinc paste, and the three-layer diaphragm reduces the internal resistance of the battery, and is also beneficial to maintaining high-voltage region discharge and prolonging the discharge time of the battery.

Disclosed herein are materials for use in battery separators. They include copolymers of a divinylbenzene and one or both of the monomers below (non-linked and linked). R is an n-alkylene group, and n is a positive integer. The copolymer made be made from tertiary amine monomers that are converted to quaternary amines. One battery includes a zinc anode, a silver cathode, and a tri-layer separator. The inner layer uses the linked monomer, and the outer layers use the non-linked monomer.

The invention discloses a method for improving floating charge performance of a zinc-silver reserve battery, belongs to the field of design of the zinc-silver reserve battery, and aims to discharge the capacity of the zinc-silver reserve battery to 70-80% of the capacity of the zinc-silver reserve battery after formation charging in the production process of the zinc-silver reserve battery, and the open-circuit voltage of a single battery is 1.60-1.70 V. The zinc-silver reserve battery is used for connecting a power generation system in parallel. When the positive electrode plate and the negative electrode plate are pre-discharged in the production process and are connected with a power generation system in parallel, the battery can be immediately discharged to work and can also be immediately charged, and the risk of overcharging or overdischarging does not exist. The positive and negative plates can change along with the voltage of the power generation system through pre-electrification, thereby preventing overlarge difference between the voltage of the battery pack and the voltage of the power generation system from causing overlarge charging or discharging current of the battery pack.

Provided is a zinc secondary battery which has favorable battery resistance while being able to effectively suppress leakage of an electrolyte solution caused by creep. This zinc secondary battery comprises: a positive electrode plate that includes a positive electrode active substance layer and a positive electrode current collector; a negative electrode plate that includes a negative electrode active substance layer containing at least one type selected from the group consisting of zinc, zinc oxide, a zinc alloy and a zinc compound, and a negative electrode current collector; a hydroxide ion-conducting separator that separates the positive electrode plate and the negative electrode plate in a hydroxide ion-conducting way; and an electrolyte solution. The electrolyte solution is an aqueous solution that contains at least an alkali metal hydroxide including sodium hydroxide. The total alkali metal hydroxide concentration in the electrolyte solution is 5.0-6.0 mol / L. The sodium hydroxide concentration in the electrolyte solution is 0.5-6.0 mol / L.