Abstract: A zinc-air button cell comprising a zinc-containing anode and an air cathode as electrochemical active components and a casing surrounding the anode and the cathode and having 1 to 128 inlet openings through which atmospheric oxygen can enter the casing, wherein 1) the casing comprises a cell cup and a cell lid, 2) the inlet openings are introduced in a bottom portion of the cell cup, 3) at least a part of the inlet openings has an opening area of <0.025 mm2, and 4) the air cathode is a substantially flat layer and seated directly on the bottom portion of the cell cup.

Abstract: Aims at providing a metal oxygen battery capable of supplying oxygen and perform charge/discharge stably. A metal oxygen battery 1 includes a positive electrode 2 to which oxygen is applied as an active substance, a negative electrode 3 to which a metal is applied as an active substance, an electrolyte layer 4 disposed between the positive electrode 2 and the negative electrode 3, and a case 5 hermetically housing the positive electrode 2, the negative electrode 3, and the electrolyte layer 4. The positive electrode 2 includes an oxygen-storing material having a catalyst function with respect to a cell reaction, and a function of, during discharge, ionizing oxygen and binding the oxygen with metal ions transferring from the negative electrode 3 through the electrolyte layer 4 to the positive electrode 2 to thereby form a metal oxide, and during charge, reducing the metal oxide and storing oxygen.

Abstract: This disclosure describes metal air battery devices with an anode structure having a plurality of electrodes. An anode is disclosed having a metal source as well as a current collector that together function as an active, reversible, working anode. The source is used for metal-ions that are stripped and stored in the current collector. At this point the current collector contains the metal-ions to be propagated through the rest of the device. Metal-ions may be stripped from and deposited on the current collector, while metal-ions may only be stripped from the source. Upon use of the device metal-ions may be lost to the system for a variety of reasons. To counteract the loss of metal-ions, the current collector is replenished of metal-ions from the source.

Abstract: The invention provides for a fully electrically rechargeable metal-air battery systems and methods of achieving such systems. A rechargeable metal air battery cell may comprise a metal electrode an air electrode, and an aqueous electrolyte separating the metal electrode and the air electrode. In some embodiments, the metal electrode may directly contact the electrolyte and no separator or porous membrane need be provided between the air electrode and the electrolyte. Rechargeable metal air battery cells may be electrically connected to one another through a centrode connection between a metal electrode of a first battery cell and an air electrode of a second battery cell. Air tunnels may be provided between individual metal air battery cells. In some embodiments, an electrolyte flow management system may be provided.

Abstract: The present disclosure generally relates to a zinc air cell having an anode can made of a copper alloy. The anode can material reduces internal gassing within the electrochemical cell while being compatible with the internal chemistry of the anode and the alkaline electrolyte of the cell itself.

Abstract: Disclosed is a lithium air battery that includes a positive electrode including a current collector and a positive active material layer disposed on the current collector and including a positive active material, a negative electrode including a negative active material, and an electrolyte, wherein the positive active material includes lithium peroxide (Li2O2), lithium oxide (Li2O), lithium hydroxide (LiOH), or a combination thereof, and the negative active material includes a lithium metal alloy, a material being capable of doping and dedoping lithium, a transition element oxide, or a combination thereof.

Abstract: A structure and a method of manufacturing a power storage device with high energy density are provided. An air electrode includes a first current collector; a second current collector having a projecting structure, in contact with the first current collector; and a catalyst layer having 1 to 100 graphene films. Accordingly, the surface area of the air electrode can be significantly large due to an effect of the second current collector, and further, the graphene film can produce a catalytic reaction without using a catalyst such as a noble metal; thus, by employing a structure in which the catalyst layer is provided on the second current collector, the energy density of the power storage device can be improved.

Abstract: A metal air battery capable of obtaining larger charge-discharge capacity than before, is provided. The metal air battery 1 includes a negative electrode 2 including one metal selected from the group consisting of Li, Zn, Mg, Al, and Fe, a positive electrode 3 including a mixture of a carbon material and an oxygen-storing material, and an electrolyte interposed between the negative electrode and the positive electrode. The electrolyte is immersed in a separator 4. The negative electrode 2 includes metal Li. The oxygen-storing material includes a composite oxide of yttrium and manganese. The oxygen-storing material preferably has a hexagonal structure.

Abstract: An energy storage system according to the present disclosure includes a cell having an electrode and a deposition facilitating structure proximate the electrode for facilitating deposition of material on the electrode. The deposition facilitating structure includes first and second outer layers and an intermediate support arrangement positioned between the outer layers and connected to the outer layers.

Abstract: Cathodes that include an active cathode material are described. The active cathode material can be coated.

Abstract: A method to produce an aluminium air battery, comprising: forming a selectively reactive coating on a surface of an anode core to form a composite anode, the selectively reactive coating comprising a zinc alloy and the anode core comprising aluminium; and storing an electrolyte in contact with the composite anode, wherein the selectively reactive coating is capable of chemically reacting with the electrolyte during discharging of the aluminium air battery the reactive coating may also include an anode corrosion inhibitor material consisting of one or more of indium, gallium, lead, thallium or mercury

Abstract: A method for using an integrated battery and device structure includes using two or more stacked electrochemical cells integrated with each other formed overlying a surface of a substrate. The two or more stacked electrochemical cells include related two or more different electrochemistries with one or more devices formed using one or more sequential deposition processes. The one or more devices are integrated with the two or more stacked electrochemical cells to form the integrated battery and device structure as a unified structure overlying the surface of the substrate. The one or more stacked electrochemical cells and the one or more devices are integrated as the unified structure using the one or more sequential deposition processes. The integrated battery and device structure is configured such that the two or more stacked electrochemical cells and one or more devices are in electrical, chemical, and thermal conduction with each other.

Abstract: An electrochemical cell system is configured to utilize an ionically conductive medium flowing through a plurality of electrochemical cells. One or more disperser chambers are provided to disrupt or minimize electrical current flowing between the electrochemical cells, such as between the cathode of one cell and the anode of a subsequent cell by dispersing the ionically conductive medium. Air is introduced into the disperser chamber to prevent the formation of foamed ionically conductive medium, which may reconnect the dispersed ionically conductive medium, allowing the current to again flow therethrough.

Abstract: A metal-air fuel cell has electrodes including a cathode and an anode, current pickups provided for each of said electrodes for taking currents from a respective one of the electrode, wherein at least one of the electrodes being formed as a frameless box-shaped element, wherein additional hydrogen electrode, an electrolyte container, and a power source are provided.

Abstract: Implementations and techniques for rechargeable zinc air batteries are generally disclosed.

Abstract: One aspect of the present invention provides an electrochemical cell system comprising at least one electrochemical cell configured to be selectively connected to a load to discharge the cell by generating electrical current using a fuel and an oxidant. The electrochemical cell system may alternatively be connected to a power supply to recharge the cell. The electrochemical cell system comprises a plurality of electrodes and electrode bodies therein. The electrochemical cell system further comprises a switching system configured to permit progressive movement of the anodes used for charging each electrochemical cell, maintaining a minimum distance from a progressively moving cathode that is the site of fuel growth.

Abstract: Triethylboron is a useful precursor for depositing films in an atomic layer deposition process. This precursor is useful for depositing boron containing films. Boron containing films are excellent lubricating coatings for zinc powders, improving their flow properties and simplifying powder handling. This makes the coated zinc powders especially useful for battery applications in which a zinc powder is used as an anode material.

Abstract: Performance, properties and stability of bifunctional air electrodes may be improved by using modified current collectors, and improving water wettability of air electrode structures. This invention provides information on creating non-corroding, electrically rechargeable, bifunctional air electrodes. In some embodiments, this bifunctional air electrode includes a corrosion-resistant outer layer and an electrically conductive inner layer. In some embodiments, this bifunctional air electrode includes titanium suboxides formed by reducing titanium dioxide. Titanium suboxides may be corrosion-resistant and electrically conductive.

Abstract: The invention provides for a fully electrically rechargeable metal-air battery systems and methods of achieving such systems. A rechargeable metal air battery cell may comprise a metal electrode an air electrode, and an aqueous electrolyte separating the metal electrode and the air electrode. In some embodiments, the metal electrode may directly contact the electrolyte and no separator or porous membrane need be provided between the air electrode and the electrolyte. Rechargeable metal air battery cells may be electrically connected to one another through a centrode connection between a metal electrode of a first battery cell and an air electrode of a second battery cell. Air tunnels may be provided between individual metal air battery cells. In some embodiments, an electrolyte flow management system may be provided.

Abstract: A method for producing a stainless steel three-ply clad sheet for a fuel cell separator comprises heating a source blank and then performing rough rolling, hot rolling and cold rolling thereto, whereby the clad steel sheet for the fuel cell separator or a solid polymer type fuel cell separator thereby is obtained. The source blank for the clad steel sheet is composed of a stainless steel utilizing 0 to 0.3% B as a core component and a stainless steel containing 0.3 to 2.5% B as face component. The source blank is made using face components, a core component, tabs and protectors and performing steps including bonding of the tabs and protectors to the face components, removing portions of the tabs and protectors, piling of the face components to the core component, and further bonding of the face and core components together to form the source blank.

Abstract: This invention provides a rechargeable cell comprising an electrode including: a plurality of porous clusters of silver particles, wherein each cluster includes: (a) a plurality of silver particles, and (b) crystalline particles of zirconium oxide (ZrO2), wherein at least a portion of the crystalline particles of ZrO2 is located in pores formed by a surface of the plurality of silver particles. Electrodes of the present invention catalyze the reduction of oxygen in alkaline solution. When the cell is charged, the silver in the electrodes can be oxidized to Ag2O and further to AgO. Upon discharge, the reduction of the oxidized silver results in additional available energy. This invention provides electrodes for use in rechargeable cells or batteries and methods of making thereof.

Abstract: Disclosed are a heat-generating device for a battery and a battery assembly enabling a battery to stably produce electricity even under low-temperature conditions. The heat-generating device for a battery includes a heating element positioned on one side of the battery and generates heat through a reaction with the air. The heating element comprises a main body generating heat through the reaction with the air, and a supporting body wrapping the main body to adhere to the battery. Accordingly, the internal temperature of the battery can be maintained within possible activation temperature ranges to allow the battery to produce electricity, thereby making the battery performance sustainable under low-temperature conditions.

Abstract: Herein is disclosed a rechargeable zinc-air battery characterised in that the anode consists of essentially spherical copper particles covered by a layer of zinc.

Abstract: Provided is a zinc air fuel cell with enhanced cell performance, more particularly a zinc air fuel cell which includes a separator-electrode assembly including a perforated metal plate as a cathode current collector, a catalyst-coated carbon paper, a separator, a perforated metal plate as an anode current collector, and a tilted nonconductive support. Furthermore, a metal plate may be placed on the tilted nonconductive support and connected to the anode current collector in the separator-electrode assembly to enlarge the active area of the anode current collector. For the zinc air fuel cell according to the present invention, a manufacturing cost may be reduced by using a mixture of MnO2 and CeO2, which are low-priced metal oxides as catalyst materials for oxygen reduction, and by using a low-priced nylon filter, which has a micro-porous structure and shows high stability in alkaline electrolyte.

Abstract: An air cathode having a multilayer structure is composed of at least one substrate, two diffusion layers and three activation layers. The two diffusion layers are laminated over an upper side of the substrate and a lower side of the substrate. The three activation layers are respectively laminated over one of the two diffusion layers in order. Different loadings or different kinds of catalysts are added into a slurry to form the activation layers, and the activation layers and the diffusion layers are made through simultaneous sintering, thereby shortening the processing time. When the air cathode is used as the cathode of the Zinc-Air battery, the electrolyte inside the Zinc-Air battery will not be influenced by the outside air, and the problem of maintaining the water content of the zinc anode of the Zinc-Air battery can be efficiently overcome.

Abstract: A metal-air battery includes a metal anode including at least one of zinc, aluminum, magnesium, iron, and lithium. The metal-air battery also includes an ion exchange material provided within the battery for controlling material transport within the battery. The ion exchange material may be provided at one or more locations within the battery, including within an air electrode, within a material coupled to the air electrode, as a separate film or membrane, within pores of a polymeric separator, or elsewhere.

Abstract: A metal-air flow battery is provided that comprises a tank configured to contain an anode paste material; a reaction tube in fluid communication with the tank, the reaction tube comprising an air electrode, an outer surface configured to allow air to enter the reaction tube, and an internal passage; and a mechanism for moving the anode paste material through the internal passage of the reaction tube.

Abstract: The present invention provides a sheet anode based on modified zinc-aluminum alloys and Zinc-Air batteries containing the same. The sheet anode is consisted of ZnxAlyMz, wherein M comprises an element selected from the group consisting of alkaline metal and alkaline earth metal, or its further combination with at least one of Mn, Si and Cu; x, y and z each represents the weight percent of Zn, Al and M, and x+y+z=100; 2<y<50; and 0.5<z<6. The present invention also provides a sheet anode prepared from scrapped aluminum alloys, scrapped magnesium alloys, or scrapped zinc alloys, and the said sheet anode can be further made to be porous before use by proper etching.

Abstract: First, a solid-state electrolyte layer that has conductivity for ions of one of hydrogen and oxygen is formed. After that, a dense layer made of an electrode material that has electron conductivity, catalyst activity to accelerate the electrochemical reaction, and a characteristic of allowing permeation of ions and/or atoms of the other one of hydrogen and oxygen is formed on a surface of the electrolyte layer. Then, a fuel cell structure that includes the electrolyte layer and the dense layer is built. After that, the electrochemical reaction is caused to progress by supplying a fuel and oxygen to the fuel cell structure, so that in the dense layer, many micropores extending through the dense layer in the film thickness direction are created due to the generated water that is created between the electrolyte layer and the dense layer.

Abstract: A zinc air-type battery comprising first and second cathodes each with positive contacts and an anode with a negative contact. The second cathode is situated proximal to the negative contact and proximal to the anode, which can enable air ingress to be substantially doubled and the internal resistance of the battery to be substantially halved, and further can provide for a relatively short diffusion length of ions from the second cathode.

Abstract: A zinc/air system such as a fuel cell or mechanically rechargeable zinc/air battery has a zincate-trapping material to extend electrolyte life. Solid calcium hydroxide is used as the zincate-trapping material in some embodiments. The zincate-trapping material may be provided in the form of pellets, powders, or the like in assemblies that permit electrolyte to contact the zincate-trapping material. The assemblies may be replaceable while the system remains in operation. In some embodiments, the assemblies are removable and may be processed after use to collect zinc for recycling.