Ovonic Battery Company, Inc.

Chevron Texaco Technology Ventures, LLC

Ovanic Battery Company, Inc.

Philippe Gow

Stanford R Ovshinsky

Dennis A Corrigan

Anthony Osgood

Lin R Higley

Subhash K Dhar

Srinivasan Venkatesan

Arthur Holland

Donn Fillmore

Ronald Himmler

Kenneth Laming

Nick Karditsas

Marshall D Muller

Rajeev Puttaiah

Joshua Payne

A monoblock battery case and a monoblock battery. The monoblock battery case comprises a first and a second container each having partitions that divide the containers into cell compartments. The first container is attached to and co-operates with the second container to form one or more coolant channels disposed between the first and second containers.

Monoblock battery

Mechanically and thermally improved rechargeable batteries, modules and fluid-cooled battery pack systems. The battery is prismatic in shape with an optimized thickness to width to height aspect ratio which provides the battery with balanced optimal properties when compared with prismatic batteries lacking this optimized aspect ratio. The fluid-cooled battery pack includes; 1) a battery-pack case having coolant inlet and outlet; 2) battery modules within the case such that the battery module is spaced from the case walls and from other battery modules to form coolant flow channels along at least one surface of the bundled batteries; and 3) at least one coolant transport means. The width of the coolant flow channels allows for maximum heat transfer.

Mechanical and thermal improvements in metal hydride batteries, battery modules, and battery packs

Mechanically and thermally improved rechargeable batteries, modules and fluid-cooled battery pack systems. The battery is prismatic in shape with an optimized thickness to width to height aspect ratio which provides the battery with balanced optimal properties when compared with prismatic batteries lacking this optimized aspect ratio. The optimized thickness, width and height allow for maximum capacity and power output, while eliminating deleterious side affects. The battery case design allows for unidirectional expansion which is readily compensated for by applying external mechanical compression counter to that direction. In the module, the batteries are bound within a module bundling/compression means under external mechanical compression which is optimized to balance outward pressure due to expansion and provide additional inward compression to reduce the distance between the positive and negative electrodes, thereby increasing overall battery power. The fluid-cooled battery pack includes; 1) a battery-pack case having coolant inlet and outlet; 2) battery modules within the case such that the battery module is spaced from the case walls and from other battery modules to form coolant flow channels along at least one surface of the bundled batteries; and 3) at least one coolant transport means. The width of the coolant flow channels allows for maximum heat transfer. Finally the batteries, modules and packs can also include means for providing variable thermal insulation to at least that portion of the rechargeable battery system which is most directly exposed to said ambient thermal condition, so as to maintain the temperature of the rechargeable battery system within the desired operating range thereof under variable ambient conditions.

Mechanical and thermal improvements in metal hydride batteries, battery modules and battery packs

A multi-cell monoblock battery in which a plurality of electrochemical cells are disposed in a battery case. The battery case includes one or more cell partitions which divide the interior of the case into a plurality of cell compartments that house the electrochemical cells. Preferably, one or more coolant channels are integrally formed with at least one of the cell partitions. The coolant channels may have inlets and outlets disposed in the walls of the battery case so as to provide a cross-flow cooling design.

Monoblock battery assembly with cross-flow cooling

Mechanically and thermally improved rechargeable batteries and modules. The battery is prismatic in shape with an optimized thickness to width to height aspect ratio which provides the battery with balanced optimal properties when compared with prismatic batteries lacking this optimized aspect ratio. The optimized thickness, width and height allow for maximum capacity and power output, while eliminating deleterious side affects. The battery case design allows for unidirectional expansion which is readily compensated for by applying external mechanical compression counter to that direction. In the module, the batteries are bound within a module bundling/compression means under external mechanical compression which is optimized to balance outward pressure due to expansion and provide additional inward compression to reduce the distance between the positive and negative electrodes, thereby increasing overall battery power. Finally the batteries, modules and packs thereof can also include means for providing variable thermal insulation to at least that portion of the rechargeable battery system which is most directly exposed to ambient thermal conditions, so as to maintain the temperature of the rechargeable battery system within the desired operating range thereof under variable ambient conditions.

A multiple cell monoblock battery in which a plurality of electrochemical cells are disposed in a plastic or metal case and each of the cells includes an enclosure providing for gas to exit while preventing electrolyte to exit the enclosure. A novel integral system of flow channels allows liquid coolant to flow between adjacent cells. Other special features, such as cell interconnections are described.

Monoblock battery assembly

Mechanical and thermal improvements in metal hydride batteries, battery

Growing community of inventors

Southfield, MI, United States of America

Philippe Gow