104results about "Filling tube/pocket electrodes" patented technology

A method of forming an anode comprising zinc for a zinc/air cell. The method involves mixing zinc particles with binders including preferably polyvinylalcohol, surfactant and water to form a wet paste. The wet paste is compacted and molded into the near shape of the cell's anode cavity and then heated to evaporate water. A solid porous zinc mass is formed wherein the zinc particles are held bound within a network with microscopic void spaces between the zinc particles. The solid mass can be inserted into the cell's anode cavity and aqueous alkaline electrolyte, preferably comprising potassium hydroxide, then added. The solid mass absorbs the aqueous electrolyte and expands to fill the anode cavity to form the final fresh anode.

A composite anode active material, an anode including the composite anode active material, a lithium battery including the anode, and a method of preparing the composite anode active material. The composite anode active material includes: a shell including a hollow carbon fiber; and a core disposed in a hollow of the hollow carbon fiber, wherein the core includes a first metal nanostructure and a conducting agent.

The present invention generally relates to batteries and, in particular, to electrodes for use in batteries such as non-aqueous metal-air batteries, for example, lithium-air batteries, as well as in other electrochemical devices. Such devices may exhibit improved performance characteristics (e.g. power, cycle life, capacity, etc.). One aspect of the present invention is generally directed to electrodes for use in such devices containing one or more pores or channels for transport of gas and/or electrolyte therein, e.g., forming an open porous network. In certain embodiments, the electrolyte may be a gel or a polymer. In some embodiments, there may be network of such channels or pores within the electrode such that no active site within the electrode is greater than about 50 micrometers distant from a gas channel. In some embodiments, such systems may be created using electrodes containing gel or electrolyte polymers, and/or by forming electrodes having different wettabilities such that certain regions preferentially attract the electrolyte compared to other regions, thereby causing self-organization of the electrolyte within the electrode. Other aspects of the invention are generally directed to methods of making such batteries or electrochemical devices, methods of using such batteries or electrochemical devices, kits involving such batteries or electrochemical devices, or the like.

An electrochemical battery cell in accordance with the invention has a high electrode interfacial surface area to improve high rate discharge capacity, and the shapes of the electrodes facilitate the manufacture of cells of high quality and reliability at high speeds suitable for large scale production. The interfacial surfaces of the solid body electrodes have radially extending lobes that increase the interfacial surface area. The lobes do not have sharp corners, and the concave areas formed between the lobes are wide open, to facilitate assembly of the separator and insertion of the other electrode into the concave areas without leaving voids between the separator and either electrode.

A metal-air battery has an anode in which the electrochemically active material is molybdenum. The molybdenum may be in the form of a bulk body of material or it may comprise a particulate material dispersed with or in another material. In some instances, the molybdenum may comprise a member of an alloy or mixture. Also disclosed is a modular battery system which may include the molybdenum-based anode material.

The present invention provides an aqueous electrolyte for use in rechargeable zinc-halide storage batteries that possesses improved stability and durability and improves zinc-halide battery performance. One aspect of the present invention provides an electrolyte for use in a secondary zinc bromine electrochemical cell comprising from about 30 wt % to about 40 wt % of ZnBr₂ by weight of the electrolyte; from about 5 wt % to about 15 wt % of KBr; from about 5 wt % to about 15 wt % of KCl; and one or more quaternary ammonium agents, wherein the electrolyte comprises from about 0.5 wt % to about 10 wt % of the one or more quaternary ammonium agents.

The present invention in directed to the fabrication of thin aluminum anode batteries using a highly reproducible process that enables high volume manufacturing of the galvanic cells.

Thin-film electrodes and battery cells, and methods of fabrication. A thin film electrode may be fabricated from a non-metallic, non-conductive porous support structure having pores with micrometer-range diameters. The support may include a polymer film. A first surface of the support is metalized, and the pores are partially metallized to create metal tubes having a thickness within a range of 50 to 150 nanometers, in contact with the metal layer. An active material is disposed within metalized portions of the pores. An electrolyte is disposed within non-metalized portions of the pores. Active materials may be selected to create an anode and a cathode. Non-metalized surfaces of the anode and cathode may be contacted to one another to form a battery cell, with the non-metalized electrolyte-containing portions of the anode facing the electrolyte-containing portions of the cathode pores. A battery cell may be fabricated as, for example, a nickel-zinc battery cell.

A method for manufacturing of a powder mixture for a battery electrode that includes suspending of particles of at least one binder within an inert solvent producing a first suspension, slowly suspending of particles of an active material within the first suspension producing a second suspension, drying of the second suspension producing a granulate material. Further relates to a respective powder mixture, an electrode and a method of manufacturing the electrode.

The present invention is to provide a transparent/translucent Li-ion battery and electrodes thereof. The transparent/translucent Li-ion battery comprises an anode, a cathode, and an electrolyte. The anode comprises an electrode material holder with inner structures, a current collector, and an anode material. The current collector is formed along the wall of the inner structures of the electrode material holder, and the anode material is deposited on the current collector, and filled within the inner structures. The cathode is fabricated with the similar method as the anode by using a cathode material. The electrode material holder with the inner structures can be a patterned glass or quartz slice with concave parts, or an anodized aluminum oxide film with channels. The transparent/translucent Li-ion battery of the present invention provides high transparency and electrical storage capacity.

An apparatus (1) for use of carbonized charcoal powder as an electrode is provided. Charcoal is provided as a powder, carbonized, and placed in a container (16) by which compressive pressure is applied to the carbonized-charcoal powder via one or more sides of the container (16). As a result of the compressive pressure the packed-bed (11) of carbonized-charcoal powder manifests a resistivity of less than about 1 ohm-cm and is suitable for use as an electrode in a fuel cell, battery or electrolyzer. The apparatus is adapted with electrical contacts (8, 9, 10) to conduct electric flow to or from the electrode and adapted for communication of an electrolyte with the electrode.

The invention discloses a full-automatic continuous lead powder filling machine. The full-automatic continuous lead powder filling machine comprises a frame and an automatic rotating device, an automatic quantitative powder-blanking device, an electromagnetic vibration filling device, a scraping cleaning device, a powder-collecting recycling device and a protecting dust-removing device which are arranged on the frame. The full-automatic continuous lead powder filling machine has the advantages that the continuous automatic production can be realized; the production efficiency is high and can reach up to 30 tablets per minute; a unique lifting electromagnetic vibration device and a powder filling assembling device are arranged; the vibration component in a filling production process is limited in a powder filling assembly panel 311; the frame 601 is low in vibration and low in noise; the protecting dust-removing device 600 is arranged, so that the closed filling can be performed, without waste or pollution; the scraping cleaning device 400 is arranged for recycling the spilled lead powder; the outer side of the draining pipe is clean and free from lead powder; the lifting electromagnetic vibration device and the powder filling assembling device are arranged, so that uniform powder filling can be realized.

The invention discloses a lithium ion button battery with the height and diameter being 1 or smaller. Anode and cathode shells and insulation sealing rings are sealed through hemming and tight-pressing, a battery core with the winding axis perpendicular to circular flat planes of the anode and cathode shells of the battery is a multi-polygon regular prism, at least one material is adopted in a diaphragm in battery core pole piece set, a columnar sleeve piece is embedded between the cylindrical side wall of the battery core and the cylindrical side wall of an inner cavity of the anode shell and made of elastomer plastics or metal, and the sleeve contains the battery core so as to effectively adapt to changes of the size of the battery core during charging and discharging.

The invention belongs to the manufacturing field of a lead-acid storage battery, and specifically relates to a tubular grid stirring type paste extruding apparatus. The tubular grid stirring type paste extruding apparatus comprises a paste extruding head, wherein the paste extruding head is communicated with a paste extruding pipe; a stirring blade is arranged in the paste extruding head; the stirring blade comprises a central shaft, a mixing blade and a mixing barrier blade; the mixing blade and the mixing barrier blade are arranged on the two sides of the central shaft separately; the central shaft is connected with a motor rotating shaft; one side, in contact with the lead paste inlet of the paste extruding head, of the mixing barrier blade is a plane; and an in-place detection part is arranged on the exterior, corresponding to the mixing barrier blade, of the paste extruding head. The tubular grid stirring type paste extruding apparatus is high in extruded paste weight control precision, low in failure rate and convenient to detach and clean.

The invention relates to the battery filed and particularly provides an electrode slurry precursor which comprises a packaging film bag and an electrode material, and the electrode material is sealed in the packaging film bag which can be dissolved in an organic solvent. The invention provides an electrode slurry and a preparation method of the electrode slurry, the method comprises the steps that (1) polymer materials containing polyvinylidene fluoride are dissolved with an organic solvent to obtain a solution, and the solution is subjected to film forming to obtain the packaging film bag; (2) the electrode material is sealed with the packaging film bag, and the electrode slurry precursor is obtained; (3) the electrode slurry precursor is added to the organic solvent for dissolution to obtain the electrode slurry. The invention provides an electrode and a lithium ion battery. The electrode slurry is high in uniformity and good in mechanical adhesion force.

A negative electrode (10) for a lithium secondary battery, including a negative electrode collector (20), and a negative electrode active substance layer (30) that is supported on the negative electrode collector (20) and includes carbon nanowalls (32) which are formed on the negative electrode collector (20), and a negative electrode active substance (36) which is supported on the carbon nanowalls (32).

Provided is a method for producing a lithium ion cell having an outer container composed of a resin molded article, and the method for producing a lithium ion cell includes a current collector forming process of forming, on the inner side of an outer container, each of a first electrode current collector and a second electrode current collector composed of an electrically conductive polymer composition by using a molding die.