Abstract: The method comprises forming a dry preunit including a stack of cells. Each cell is formed by placing sequentially a conductive support sheet coated on one or both sides with a porous conductive material except at the perimeter edge surfaces, an ion permeable or semi-permeable space separator, a gasket, at least one hollow capillary tube having a melting point higher than the gasket material. Upon heating the gasket material flows, adheres to, and seals the edges of the stack creating a solid integral stack of layers of alternating electrically conductive sheet coated with a porous electrically conducting material and a separator. The gasket material creates a continuous integral external polymer enclosure having hollow capillary tubes. After an electrolyte is introduced into the preunit, the capillary tubes are sealed.

Abstract: The present invention relates to an improved method to produce an electrical storage device having useful characteristics such as higher charge density, small volume, long-term reliable charge/discharge cycles, low leakage current, and the like. The dry preunit has useful properties in that it can be stored for long periods prior to contact with a non-aqueous or aqueous electrolyte. When the electrode surfaces are contacted with a non-aqueous or aqueous electrolyte, the novel capacitors produced are useful as a portable power supply in applications such as in defibrillator, electrical vehicles, radiotelephones etc.

Abstract: The present invention concerns a process to produce a high surface area niobium oxynitride, tantalum oxynitride, vanadium oxynitride, zirconium oxynitride, titanium oxynitride or molybdenum oxynitride coated substrate for use as an electrical energy storage component in a capacitor or a battery configuration.

Abstract: A dry preunit (10), includes a plurality of cells (110, 112, 114) in a true bipolar configuration, which are stacked and bonded together, to impart to the device an integral and unitary construction. Each cell (114) includes two electrically conductive electrodes (111A, 111B) that are spaced apart by a predetermined distance. The cell (114) also includes two identical dielectric gaskets (121, 123) that are interposed, in registration with each other, between the electrodes (111A, 111B), for separating and electrically insulating these electrodes. When the electrodes (111A, 111B), and the gaskets (121, 123) are bonded together, at least one fill gap (130) is formed for each cell. Each cell (114) also includes a porous and conductive coating layer (119, 120) that is formed on one surface of each electrode. The coating layer (119) includes a set of closely spaced-apart peripheral microprotrusions (125), and a set of distally spaced-apart central microprotrusions (127).

Abstract: The present invention relates to a photolithographic method to produce multiple, electrically insulating microprotrusions on an electrically conducting substrate to produce and maintain substantially uniform space separation between the substrates which act as electrodes in a double layer capacitor or battery configuration. Preferably, the electrically insulating microprotrusions are an organic photocurable epoxide polymer, a photocurable acrylic polymer or combinations thereof.

Abstract: A dry preunit (10), includes a plurality of cells (110, 112, 114) in a true bipolar configuration, which are stacked and bonded together, to impart to the device an integral and unitary construction. Each cell (114) includes two electrically conductive electrodes (111A, 111B) that are spaced apart by a predetermined distance. The cell (114) also includes two identical dielectric gaskets (121, 123) that are interposed, in registration with each other, between the electrodes (111A, 111B), for separating and electrically insulating these electrodes. When the electrodes (111A, 111B), and the gaskets (121, 123) are bonded together, at least one fill gap (130) is formed for each cell. Each cell (114) also includes a porous and conductive coating layer (119, 120) that is formed on one surface of each electrode. The coating layer (119) includes a set of closely spaced-apart peripheral microprotrusions (125), and a set of distally spaced-apart central microprotrusions (127).

Abstract: A dry preunit (10), includes a plurality of cells (110, 112, 114) in a true bipolar configuration, which are stacked and bonded together, to impart to the device an integral and unitary construction. Each cell (114) includes two electrically conductive electrodes (111A, 111B) that are spaced apart by a predetermined distance. The cell (114) also includes two identical dielectric gaskets (121,123) that are interposed, in registration with each other, between the electrodes (111A, 111B), for separating and electrically insulating these electrodes. When the electrodes (111A, 111B), and the gaskets (121, 123) are bonded together, at least one fill gap (130) is formed for each cell. Each cell (114) also includes a porous and conductive coating layer (119, 120) that is formed on one surface of each electrode. The coating layer (119) includes a set of closely spaced-apart peripheral microprotrusions (125), and a set of distally spaced-apart central microprotrusions (127).

Abstract: The present invention relates to an improved method to produce an electrical storage device having useful characteristics such as higher charge density, small volume, long-term reliable charge/discharge cycles, low leakage current, and the like. The dry preunit has useful properties in that it can be stored for long periods prior to contact with a non-aqueous or aqueous electrolyte. When the electrode surfaces are contacted with a non-aqueous or aqueous electrolyte, the novel capacitors produced are useful as a portable power supply in applications such as in defibrillator, electrical vehicles, radiotelephones etc.

Abstract: Electrodes of an electrical charge storage device are separated by forming on the surfaces of the electrodes arrays of substantially uniform electrically insulating microprotrusions made preferably of an organic epoxide polymer. The electrodes are thin, flat electrically conducting metal sheets coated on one or both flat surfaces with electrically conducting porous carbon or a porous metal oxide. The microprotrusions are applied to the coated electrodes through a stencil by screen printing and essentially retain their shape and dimensions after curing.