Ev Energy Systems, Ltd.

Thomas E Audit

Jon Kenneth West

An electric energy storage device includes a plurality of electrical energy cells. Each of the cells has an anode plate, a cathode plate, and electrolyte material. Current collectors are provided between the cells to conduct electrical current between the cells. The current collectors optionally include a seal that prevents electrolyte flow between the cells while permitting flow of vapor between the cells. The cells and current collectors may be contained in a common pressure vessel without separate pressure vessels being provided for each of the cells.

Electrical energy storage device

An electric energy storage device, comprises a casing and a coiled winding disposed within the casing. The winding includes a cathode plate including a strip having a pair of elongated side edges, an anode plate including a strip having a pair of elongated side edges, and a separator located between the cathode and anode plates. The cathode and anode plates are wound in an offset relationship so that one elongated side edge of the cathode plate extends beyond one elongated side edge of the anode plate at a first side of the winding, and the other elongated side edge of the anode plate extends beyond the other elongated side edge of the cathode plate at a second side of the winding opposite the first side. An electrolyte material is located within the winding. Two current collectors are secured to the casing, one current collector being pressed against the first side of the winding to contact the cathode plate at a plurality of locations thereon, and the other current collector being pressed against the second side of the winding to contact the anode plate at a plurality of locations thereon. A pressure vessel may be provided to hold at least one of the casings having at least one of the windings therein. An electric vehicle includes a plurality of the energy storage devices.

Electrical energy storage device for a motor vehicle

An electric energy storage device comprises a casing and a coiled winding disposed within the casing. The winding includes a cathode plate, an anode plate, and a separator located between the cathode and anode plates. The cathode and anode plates are wound in an offset relationship. Two current collectors are secured to the casing, one current collector being pressed against the first side of the winding to contact the cathode plate, and the other current collector being pressed against the second side of the winding to contact the anode plate. A pressure vessel is provided to hold at least one of the casings having at least one of the windings therein. An electric vehicle is provided including a plurality of the energy storage devices. An apparatus for manufacturing the winding is provided including a frame, an arbor rotatably mounted on the frame, an arbor rotation mechanism for rotating the arbor to wind the anode plate, the cathode plate and the separator about the arbor to thereby form the winding, the diameter of the winding increasing from an initial diameter to a completed diameter during the winding. A series of rollers are arranged on the frame about the arbor and are movable away from the arbor, only a portion of the series of rollers contacting the winding when the winding is of the initial diameter, and additional rollers contacting the winding when the winding reaches a first intermediate diameter between the initial and completed diameters.

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Gainesville, FL, United States of America

Thomas E Audit