摘要:
Disclosed are hyper-dendritic nanoporous zinc foam electrodes, viz., anodes, methods of producing the same, and methods for their use in electrochemical cells, especially in rechargeable electrical batteries.
摘要:
A method for manufacturing an alkaline battery includes assembling an alkaline battery with a positive electrode, a negative electrode, a separator, and an electrolyte. The positive electrode includes cobalt and a positive electrode active material particle, which has a main component that is nickel hydroxide. The positive electrode active material particle has a coating layer that includes cobalt oxyhydroxide. At least one of the positive electrode, the negative electrode, and the electrolyte includes a tungsten element. The method further includes charging the assembled alkaline battery so that the cobalt in the positive electrode is deposited as cobalt oxyhydroxide on a surface of the positive electrode active material particle.
摘要:
An apparatus that is useful for evaluating and optimizing electrochemical processes and for electrochemically characterizing materials includes a base or substrate carrying a plurality of electrodes, at least one housing member that is secured to the base or substrate to define an electrochemical cell volume for holding an electrolyte in contact with the plurality of electrodes carried on the base, and a counter electrode disposed in the cell volume. The apparatus may be used for rapidly evaluating various parameters that influence electrochemical deposition processes, electrolytic processes and electrochemical cell performance.
摘要:
The invention relates to a method and an apparatus for producing an electrode coating. The fundamental idea of the invention is to regulate in a time-defined manner at any instant during an electrolytic deposition process the concentration of the electrolyte constituents and additives in that in the electrolytic bath are provided additional electrodes, through which specific electrolyte constituents and/or additives can be taken up and/or delivered in time-controlled manner.
摘要:
An anode for use in an electrochemical cell comprises a plate of non-particulate, mercury-free zinc metal and a coating of indium metal on at least a portion of the zinc plate surface. The anode is particularly useful in a rechargeable metal-air cell. The elimination of mercury enhances the safety of the cell and the indium coating reduces gassing at the anode and corrosion of the anode. Desirably, the electrolyte in the metal air cell also includes indium hydroxide. Also, a method for making the anode using a hot-plate joining process.
摘要:
A process is described for electrolytically producing nickel electrodes by subjecting a porous nickel structure (generally a nickel plaque) to alternating anodic and cathodic pulses in an aqueous halide (generally chloride) solution. The alternating pulses first anodically dissolve the nickel from the porous nickel plaque and then cathodically precipitate the nickel in the form of the hydroxide. Particularly attractive is the use of a stable, simple solution, room temperature operation and the broad variation in operating conditions (pH, etc.) that still produce optimum results.
摘要:
The present disclosure is an electrical power generating and storage unit configured to generate electricity using magnetic forces and gravitational forces. The power generator can be scaled for various applications, including mobile and stationary power production. One example of the power generator includes nano-coated coils placed along the walls of a cylindrical housing around a centrally placed sphere containing a gel compound. The gel compound is produced by an electrochemical reaction between metals and a salt contained in a supersolution.
摘要:
Disclosed are hyper-dendritic nanoporous zinc foam electrodes, viz., anodes, methods of producing the same, and methods for their use in electrochemical cells, especially in rechargeable electrical batteries.
摘要:
A conductive porous body that has a conductive layer almost free from impurities and that enables a metallic porous body having extremely low resistance to be produced with high productivity and production efficiency, and a metallic porous body and a battery plate both produced by using the conductive porous body. The conductive porous body has a nickel conductive layer formed on the surface of the framework of a plastic porous body having a continuous-pore structure. The conductive layer is formed by the deposition of nickel from an aqueous solution containing nickel compounds with the use of a reducing agent containing titanium compounds. The metallic porous body can be obtained by forming a continuous metal-plated layer on the surface of the framework of the conductive porous body. The metal-plated layer is formed by electroplating with the conductive porous body serving as the cathode. The battery plate consists mainly of the metallic porous body.