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682results about "Alkaline electrolytes" patented technology

Zinc Ion-Exchanging Energy Storage Device

A zinc ion-exchanging battery device comprising: (A) a cathode comprising two cathode active materials (a zinc ion intercalation compound and a surface-mediating material); (B) an anode containing zinc metal or zinc alloy; (C) a porous separator disposed between the cathode and the anode; and (D) an electrolyte containing zinc ions that are exchanged between the cathode and the anode during battery charge / discharge. The zinc ion intercalation compound is selected from chemically treated carbon or graphite material having an expanded inter-graphene spacing d002 of at least 0.5 nm, or an oxide, carbide, dichalcogenide, trichalcogenide, sulfide, selenide, or telluride of niobium, zirconium, molybdenum, hafnium, tantalum, tungsten, titanium, vanadium, chromium, cobalt, manganese, iron, nickel, or a combination thereof. The surface-mediating material contains exfoliated graphite or multiple single-layer sheets or multi-layer platelets of a graphene material.
Owner:GLOBAL GRAPHENE GRP INC

Electro-catalysts for the oxidation of ammonia in alkaline media

An electro-catalyst for the oxidation of ammonia in alkaline media; the electrocatalyst being a noble metal co-deposited on a support with one or more other metals that are active to ammonia oxidation. In some embodiments, the support is platinum, gold, tantalum, or iridium. In some embodiments, the support has a layer of Raney metal deposited thereon prior to the deposition of the catalyst. Also provided are electrodes having the electro-catalyst deposited thereon, ammonia electrolytic cells, ammonia fuel cells, ammonia sensors, and a method for removing ammonia contaminants from a contaminated effluent.
Owner:OHIO UNIV

Metal-air semi-fuel cell with an aqueous acid based cathode

InactiveUS20070259234A1Long time operationCell energy increasedFuel and primary cellsFuel and secondary cellsFuel cellsOxygen
A metal-air semi-fuel cell is provided, preferably based on lithium anode and a fuel cell type air / oxygen electrode immersed in an aqueous neutral, alkali or acid solution. The lithium anode is comprised of the active metal and one or more separators protecting the anode from reacting with an aqueous solution. The outermost layer on the lithium electrode is a solid-state lithium-ion conducting glass-ceramic which is impervious to and stable towards aqueous solutions. The cathode is comprised of an air or oxygen fuel cell type electrode in contact with the aqueous solution. The lithium anode of this invention also can be replaced by other electroactive metals which react with water and acids, bases and neutral solutions, such as metals from Groups 1 and 2 of the Periodic Table of Elements in addition to Zn, Mg, and Al.
Owner:CHUA DAVID +2

Lithium Battery Using an Aqueous Electrolyte

The invention relates to a lithium battery including a cell comprising:a positive electrode,a negative electrode, andan electrolyte consisting of an aqueous solution of a lithium salt,characterized in that the electrolyte has a pH of at least 14, the positive electrode has a lithium intercalation potential greater than 3.4 V, and the negative electrode has a lithium intercalation potential less than 2.2 V.
Owner:COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Alkaline battery

An alkaline battery constructed of a cathode can and an anode cup in such a way that an open end of the cathode can is sealed by the anode cup, with a gasket interposed between them, characterized in that the open end of the anode cup is folded back in U-shape along its periphery and the fold is tightened for hermetic sealing by the internal periphery of the open end of the cathode can, with the gasket interposed between them, the anode cup has a higher hydrogen over potential material coating layer formed in a limited region on the inside thereof excluding the bottom of the U-shaped fold and the outer periphery of the fold, the cathode can contains the cathode active material and silver-nickelite (AgNiO.sub.2), the anode cup contains the anode mix which is mercury-free zinc or zinc alloy powder as the anode active material.
Owner:MURATA MFG CO LTD

Alkaline dry battery

An alkaline dry battery including a zinc negative electrode prepared by dispersing zinc alloy powder containing 0.015 wt % or less of indium and 0.008 wt % to 0.02 wt % both inclusive of aluminum into a gelled alkaline electrolyte containing 0.5 wt % to 3 wt % both inclusive of a cross-linked water-absorbing polyacrylate polymer, a separator made of a single nonwoven fabric sheet or a stack of multiple nonwoven fabric sheets and has a thickness of 360 μm to 880 μm both inclusive and a positive electrode containing manganese dioxide.
Owner:PANASONIC CORP
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