Abstract:
Disclosed herein is a method and related device for improving energy performance and substantially preventing degradation of a chemical-to-electrical energy conversion process of an energy storage device (10), comprising the steps of: mechanically exciting chemical reaction products within the energy storage device (10) at energy levels proximate which covalent bonds with a matrix (51) of the energy storage device (10) would form absent excitation, thereby substantially maintaining ionic bonding between the chemical reaction products and the matrix (51) and substantially preventing the chemical reaction products from covalently bonding with the matrix (51); and introducing the mechanical excitations into the energy storage device (10) via an active material (31) mechanically-responsive to electromagnetic signals, in response to an electromagnetic signal.
Abstract:
Batteries and methods of making batteries are disclosed. In some embodiments, a battery includes a housing, a positive electrode comprising a copper material in the housing, a negative electrode in the housing, a separator between the positive electrode and the negative electrode, and an electrolytic solution comprising soluble aluminum in the housing. A method of making a battery can include providing a positive electrode comprising a copper material into a housing, adding a material comprising aluminum to an electrolytic solution, and adding the electrolytic solution into the housing.
Abstract:
An alkali cell having a positive electrode composite material containing manganese dioxide and nickel oxyhydroxide as active materials respectively, a negative electrode containing zinc as an active material, and an alkaline electrolyte, characterized in that the manganese dioxide has a potential relative to a mercury/mercury oxide electrode of 270 mV or more in an aqueous potassium hydroxide solution having a KOH concentration of 40 wt %.
Abstract:
Die Erfindung betrifft ein Verfharen zur Regenerierung von Zink-Elektroden, insbesondere für wiederaufladbare Zink-Luft-Batterien, bei dem Zinkoxid zur Bereitstellung von Zink-Ionen in einen Elektrolyten gegeben wird, der in einem Lösebehälteer aufgenommen ist, die Zink-Ionen in dem Elektrolyten zumindest teilweise zu Zinkat-Ionen umgesetzt werden, der Elektrolyt mit den darin gelösten Zinkat-Ionen einem Reaktorbehälter zugeführt wird und die Zinkat-Ionen in dem Reaktorbehälter an einer Trägerkathode zumindest teilweise elektrolytisch zu Zink umgesetzt werden, wobei Zink, insbesondere als Zink-Sponge, an der Trägerkathode abgeschieden wird. Das Verfahren ist dadurch gekennzeichnet, dass als Ausgangsmaterial für das Zinkoxid eine Mischung von Zinkoxid beliebigen Ursprungs, insbesondere Zinkoxid aus Abfallprodukten, verwendet wird. Die Erfindung betrifft weiterhin eine Vorrichtung zur Regenerierung von Zinkelektroden, insbesondere für wiederaufladbare Zink-Luft-Batterien, insbesondere zur Durchführung des erfindungsgemässen Verfahrens.
Abstract:
A production method for an alkaline battery−use gel−form cathode, which can prepare a gel−form cathode in which zinc powder, a gelling agent and an electrolyte are uniformly dispersed in a dry−mix method, and which mixes, while agitating, an alkaline electrolyte with a dry mixture obtained by uniformly mixing zinc powder with a gelling agent, wherein an agitating device, including a cylindrical agitating container installed with the center axis X thereof kept parallel to a horizontal direction, is used to rotate the agitating container on the center axis X and to rock the right and left portions of the agitating container around axis Y perpendicular to the lengthwise direction of the agitating container, thereby obtaining a gel−form cathode by mixing while agitating the alkaline electrolyte and the dry mixture.
Abstract:
A refuelable anode structure containing anode paste for a metal air electrochemical cell is provided. The anode paste comprises metal particles, a gelling agent, and a base. The spent anode structure may be removed after discharging. The anode structure may thereafter be electrically recharged to convert oxidized metal into consumable metal fuel, or mechanically emptied and refilled with fresh metal fuel paste.
Abstract:
The present invention relates to a lithium powder anode for lithium battery comprising a metal electrode and a powdery lithium metal layer coated thereon, charaterized in that said powdery lithium metal layer is prepared from powdery lithium metal. The present invention further provides a process for the preparation of the lithium powder anode and a lithium battery using said lithium powder anode. The lithium powder anode according to the present invention can suppress the formation and growth of a dendrite of lithium metal on the surface of the anode.
Abstract:
A method of preparing a foil of an alloy of zinc with at least one additive metal that causes brittleness in zinc is provided, which comprises providing the alloy with a fine, equiaxed, noncolumnar grain microstructure in which secondary phases comprising the additive metal are isotropically distributed, and rolling the alloy to a foil. The additive is preferably selected from bismuth, indium and calcium, optionally together with aluminium. Also provided is foil of the zinc alloy having the specified microstructure, and electrochemical cells comprising an electrode formed of the foil. The method allows foil of the zinc alloy to be produced that can be bent through small bend radii without cracking, the foil therefore being useful as electrode material for batteries, in particular spiral-wound electrodes for jelly roll batteries.