Aer Energy Resources, Inc.

Lawrence A Tinker

Christopher Pedicini

William C Thibault

Chris Anthony Turner

John D Witzigreuter

R Dennis Bentz

Miranda Rivers

A battery powered device providing in combination (1) a cell pack that includes one or more isolation passageways (diffusion tubes) positioned to protect metal-air cells of the battery pack from the ambient air when no air mover is active to force air to the cells and the passageway or passageways remain unsealed, and (2) an electrical device configured to removably receive the cell pack in a manner which allows an air mover associated with the electrical device to communicate with at least one of the isolation passageways of the cell pack to provide air to air electrodes of the cells.

Electrical device with removable enclosure for electrochemical cell

A cylindrical metal-air cell has a cylindrical housing, an axially extending cylindrical air cathode adjacent an interior surface of the housing, and a plurality of elongate plenums defined between the oxygen electrode and the interior surface of the housing. Isolating passageway are positioned between the ambient environment and each of the plenums, and an air moving device is operable to force air through the isolating passageways and into at least one of the plenums. The air moving device may be a micromachined blower controlled by a circuit integrated into the housing of the blower.

Cylindrical metal-air battery with a cylindrical peripheral air cathode

A current collector for an electrode with two halves. The current collector has a first layer positioned on the first half of the electrode, a second layer positioned on the second half of said electrode, and a third layer positioned between the first and the second halves of the electrode.

Multi-layer current collector

A rechargeable metal-air battery having a housing, an air flow path, and at least one metal-air cell positioned within the housing. An air movement device communicates with the housing. The metal-air cell generates oxygen and hydrogen during cell charging. The air movement device creates a pulsating air flow within the air flow path for directing a flow of the generated gases.

Air manager system for reducing gas concentrations in a metal-air battery

A dual air electrode metal-air cell having a casing with an upper cathode mask wall, a lower cathode mask wall, and a side wall; an anode assembly having a layer of anode material positioned above and below an anode collector and means, that may be a membrane or a solid foil current collector, for inhibiting movement of anode material between the two layers; separator materials covering the anode assembly on at least its upper and lower sides; an upper air cathode positioned between the upper cathode mask wall and the separator materials on the upper side of the anode assembly; a lower air cathode positioned between the lower cathode mask wall and the separator materials on the lower side of the anode assembly; a gas vent positioned on one or more of the side walls of the casing; and a liquid electrolyte substantially trapped by the separator materials. The separator materials comprise one or more layers of an absorbent fibrous web and one or more layers of a microporous membrane that, when wet, is gas-impermeable and liquid-permeable.

Split anode for a dual air electrode cell

A dual air electrode metal-air cell having a casing including an upper cathode mask wall, a lower cathode mask wall, and a plurality of side walls; a metal anode with at least upper and lower sides covered with separator materials; an upper air cathode positioned between the upper cathode mask wall and the separator materials on the upper side of the anode; a lower air cathode positioned between the lower cathode mask wall and the separator materials on the lower side of the anode; a gas vent positioned on one or more of the side walls of the casing; and a liquid electrolyte substantially trapped by the separator materials. The separator materials comprise one ore more layers of an absorbent fibrous web and one or more layers of a microporous membrane that, when wet, is gas-impermeable and liquid-permeable.

Dual air elecrtrode cell

A protective system for multi-part connections that prevents unintended disconnection, is inexpensive, and can be used regardless of the shape of the connectors which form the connection. The protective system allows interchanging of component connectors without compromising the protective function. The secured connection includes a first connector, a second connector shaped to engage the first connector and including a catch positioned to be accessible when the connectors are engaged, and a securing line shaped at a first end thereof to engage the first connector and at a second end thereof to be secured in the catch.

Universal strain relief device for connectors

A case for a rechargeable electrochemical cell comprises a vent disposed in the case interior, the vent including an oxygen/hydrogen recombination catalyst for catalyzing the recombination of the hydrogen produced by the cell during the recharge mode with oxygen in the case interior to form water in the case interior. The vent comprises a vent support extending inwardly from the cell case shell, a gas permeable, electrolyte impermeable vent cover membrane adjacent the interior surface of the vent support, and a foraminous catalyst support disposed in the case adjacent the interior surface of the vent cover membrane so that the vent cover membrane is sandwiched between the catalyst support and the vent support. Oxygen from the ambient air permeates the vent cover membrane and recombines with the hydrogen in the cell case interior. A rechargeable electrochemical cell comprising the cell case is encompassed and the cell is desirably a metal-air cell.

Rechargeable electrochemical cell and cell case therefor with vent for

A metal-air battery leakage detector is disclosed which uses a wicking material to absorb and propagate leaking electrolyte to a leak detection means so that the detection means is activated regardless of whether the leak is occurring in the vicinity of the detection means. In a first embodiment a substance that chemically reacts with electrolyte to change color is impregnated into the wicking material as the leak detection means. In the second embodiment electrodes are embedded in the wicking material and wired to an electrical circuit that is responsive to the presence of electrolyte as the leak detection means. In either case, a user has immediate knowledge of an electrolyte leak occurring inside a battery casing so that the battery can be removed from service before the leaking electrolyte can cause harm.

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Woodstock, GA, United States of America

Lawrence A Tinker