Abstract

wherein the upper aperture is positioned below the top of housing to create a cavity to provide a void for trapping hydrogen, so that hydrogen is only expelled from the cavity via the upper aperture after a quantity has accumulated, and is expelled in bubbles having a diameter of at least one millimeter.

IPC Classes  ?

• H01M 6/34 - Immersion cells, e.g. sea-water cells
• H01M 4/08 - Processes of manufacture
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/48 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
• H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/66 - Selection of materials
• H01M 4/04 - Processes of manufacture in general
• H01M 4/74 - Meshes or woven materialExpanded metal
• H01M 6/04 - Cells with aqueous electrolyte
• H01M 2/12 - Vent plugs or other mechanical arrangements for facilitating escape of gases
• H01M 6/32 - Deferred-action cells activated through external addition of electrolyte or of electrolyte components
• H01M 2/36 - Arrangements for filling, topping-up or emptying cases with or of liquid, e.g. for filling with electrolytes, for washing-out
• H01M 4/76 - Containers for holding the active material, e.g. tubes, capsules

Abstract

d) at least one aperture leading to said at least one cavity for the ingress of an electrolyte-forming, aqueous liquid.

IPC Classes  ?

• H01M 6/34 - Immersion cells, e.g. sea-water cells
• H01M 4/46 - Alloys based on magnesium or aluminium
• H01M 4/42 - Alloys based on zinc
• H01M 2/16 - Separators; Membranes; Diaphragms; Spacing elements characterised by the material
• H01M 4/48 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
• H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
• H01M 4/08 - Processes of manufacture
• H01M 2/36 - Arrangements for filling, topping-up or emptying cases with or of liquid, e.g. for filling with electrolytes, for washing-out
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 6/32 - Deferred-action cells activated through external addition of electrolyte or of electrolyte components
• H01M 4/04 - Processes of manufacture in general
• H01M 2/12 - Vent plugs or other mechanical arrangements for facilitating escape of gases
• H01M 4/76 - Containers for holding the active material, e.g. tubes, capsules

Abstract

The invention provides a water-activated, deferred-action battery having a housing containing at least one cell, comprising at least one anode selected from the group consisting of magnesium, aluminum, zinc and alloys thereof; a cathode comprising a skeletal frame including conductive metal and having a portion of its surface area formed as open spaces, and further comprising a heat-pressed, rigid static bed of active cathode material encompassing the skeletal frame, the cathode material comprising basic copper sulfate, said cathode material being compacted and fused to itself and to the skeletal frame under pressure and / or heat, to form a heat-fused, conductive, electrochemically active phase; at least one cavity separating the cathode and the at least one anode, and at least one aperture leading to the at least one cavity for the ingress of an electrolyte-forming, aqueous liquid.

IPC Classes  ?

• H01M 6/34 - Immersion cells, e.g. sea-water cells
• H01M 6/30 - Deferred-action cells
• H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/04 - Processes of manufacture in general
• H01M 4/08 - Processes of manufacture
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The invention provides a water-activated, deferred-action battery having a housing containing at least one cell, comprising at least one anode selected from the group consisting of magnesium, aluminum, zinc and alloys thereof; a cathode comprising a skeletal frame including conductive metal and having a portion of its surface area formed as open spaces, and further comprising a heat-pressed, rigid static bed of active cathode material encompassing the skeletal frame, the cathode material comprising a basic copper salt, said cathode material being compacted and fused to itself and to the skeletal frame under pressure and / or heat, to form a heat-fused, conductive, electrochemically active phase; at least one cavity separating the cathode and the at least one anode, and at least one aperture leading to the at least one cavity for the ingress of an electrolyte-forming, aqueous liquid.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/46 - Alloys based on magnesium or aluminium
• H01M 6/32 - Deferred-action cells activated through external addition of electrolyte or of electrolyte components
• H01M 6/34 - Immersion cells, e.g. sea-water cells
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers

Abstract

An iron anode characterized by having a thickness of at least 4 mm and a porosity of 70% and methods of fabricating same.

IPC Classes  ?

• H01M 4/52 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
• H01M 10/02 - Details
• H01M 8/18 - Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells

Abstract

A voltaic cell comprising an iron in alkali anode where metal iron is oxidized to iron II hydroxide and a ferricyanide in alkali cathode where ferricyanide is reduced to ferrocyanide, and uses thereof.

IPC Classes  ?

• H01M 10/05 - Accumulators with non-aqueous electrolyte
• H01M 12/08 - Hybrid cellsManufacture thereof composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type