Arthur M Holland

US Patent:

6372377, Apr 16, 2002

Filed:

Mar 8, 1999

Appl. No.:

09/264116

Inventors:

Stanford R. Ovshinsky - Bloomfield Hills MI
Dennis A. Corrigan - Troy MI
Srinivasan Venkatesan - Southfield MI
Subhash K. Dhar - Bloomfield Hills MI
Arthur Holland - Bloomfield Hills MI
Donn Fillmore - Waterford MI
Lin Higley - Troy MI
Philippe Gow - Windsor CA
Ronald Himmler - Sterling Heights MI
Nick Karditsas - Lincoln Park MI
Kenneth Laming - Columbus MI
Anthony Osgood - Lake Orion MI

Assignee:

Ovonic Battery Company, Inc. - Troy MI

International Classification:

H01M 1002

US Classification:

429 66, 429 54, 429120, 429159, 429161, 429175

Abstract:

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.

US Patent:

6626323, Sep 30, 2003

Filed:

Feb 21, 2002

Appl. No.:

10/080220

Inventors:

Ned T. Stetson - Lake Orion MI
Michael Marchio - Clarkston MI
Arthur Holland - Commerce Township MI
Daniel Alper - Baltimore MD
David Gorman - Warren MI
Jun Yang - Dearborn MI

Assignee:

Energy Conversion Devices, Inc. - Rochester Hills MI

International Classification:

A61F 708

US Classification:

220577, 206 07, 420900

Abstract:

A hydrogen storage unit which uses hydrogen storage alloys to store hydrogen, and more particularly a heat transfer management/compartmentalization system for use in such system. The hydrogen storage alloy may be divided into compartments, separated by discs, further divided into sub-compartments by a flapper wheel. The discs and flapper wheel provide for optimal heat transfer throughout the system. The compartmentalization of the vessel may prevent compaction of the hydrogen storage alloys, which could lead to excessive strain on the vessel causing damage, deformation, or rupture of the vessel.

US Patent:

6740446, May 25, 2004

Filed:

Feb 22, 2002

Appl. No.:

10/081219

Inventors:

Dennis A. Corrigan - Troy MI
Lin Higley - Troy MI
Arthur Holland - Commerce Township MI
Marshall Muller - Farmington MI
John A. Smaga - Franklin MI

Assignee:

Ovonic Battery Company, Inc. - Troy MI

International Classification:

H01M 610

US Classification:

429152, 4292182, 429223

Abstract:

An electrochemical cell having electrodes that are arranged in a zigzag configuration with folds and creases. Additional electrodes may be inserted within the folds of the zigzag configuration. Preferably, the electrochemical cell is a prismatic cell.

US Patent:

6823931, Nov 30, 2004

Filed:

Dec 17, 1999

Appl. No.:

09/466579

Inventors:

Ned T. Stetson - Auburn Hills MI
Arthur Holland - Bloomfield Hills MI
Trevor Stephenson - Chester, GB

Assignee:

Energy Conversion Devices, Inc. - Rochester Hills MI

International Classification:

F28D 1500

US Classification:

16510412, 165 10, 62477, 62476

Abstract:

A hydrogen gas cooled hydrogen storage element which includes a hydrogen storage alloy material in which hydrogen flow channels are provided. The flow channels provide pathways through the hydrogen storage material to allow for high speed hydrogen gas flow. A portion of the high speed hydrogen flow is stored within the storage material which releases its heat of hydride formation. The remainder of the hydrogen flows through the hydrogen storage material at a sufficient mass flow rate to remove the heat of hydride formation. The unit also includes an encapsulant to prevent any loose particles of the storage material from becoming entrained in the high flow rate hydrogen.

US Patent:

6878485, Apr 12, 2005

Filed:

Apr 12, 2002

Appl. No.:

10/121279

Inventors:

Stanford R. Ovshinsky - Bloomfield Hills MI, US
Dennis A. Corrigan - Troy MI, US
Srinivasan Venkatesan - Southfield MI, US
Subhash K. Dhar - Bloomfield Hills MI, US
Arthur Holland - Bloomfield Hills MI, US
Donn Fillmore - Waterford MI, US
Lin Higley - Troy MI, US
Philippe Gow - Windsor, CA
Ronald Himmler - Sterling Heights MI, US
Nick Karditsas - Lincoln Park MI, US
Kenneth Laming - Columbus MI, US
Anthony Osgood - Lake Orion MI, US

Assignee:

Ovonic Battery Company, Inc. - Rochester Hills MI

International Classification:

H01M002/02
H01M002/12
H01M002/14
H01M002/30

US Classification:

429176, 429 53, 429120, 429129, 429180, 429181

Abstract:

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.

US Patent:

7217473, May 15, 2007

Filed:

Sep 9, 2004

Appl. No.:

10/937023

Inventors:

Stanford R. Ovshinsky - Bloomfield Hills MI, US
Dennis A. Corrigan - Troy MI, US
Srinivasan Venkatesan - Southfield MI, US
Subhash K. Dhar - Bloomfield Hills MI, US
Arthur Holland - Bloomfield Hills MI, US
Donn Fillmore - Waterford MI, US
Lin Higley - Troy MI, US
Philippe Gow - Windsor, CA
Ronald Himmler - Sterling Heights MI, US
Nick Karditsas - Lincoln Park MI, US
Kenneth Laming - Columbus MI, US
Anthony Osgood - Lake Orion MI, US

Assignee:

Ovanic Battery Company, Inc. - Rochester Hills MI

International Classification:

H01M 2/12
H01M 10/50

US Classification:

429 62, 429 83, 429120

Abstract:

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.

US Patent:

20020094478, Jul 18, 2002

Filed:

Dec 2, 2000

Appl. No.:

09/728165

Inventors:

Arthur Holland - Bloomfield Hills MI, US

International Classification:

H01M002/26
H01M004/66

US Classification:

429/211000, 429/218200, 429/245000

Abstract:

An electrode for a prismatic electrochemical cell. The electrode including a flag-shaped electrode tab. The flag-shaped tab may be integrally formed with a conductive substrate as a one-piece construction.

US Patent:

52582426, Nov 2, 1993

Filed:

Feb 8, 1993

Appl. No.:

8/014965

Inventors:

Kevin Dean - Pontiac MI
Arthur Holland - Troy MI
Donn Fillmore - Waterford MI

Assignee:

Ovonic Battery Company, Inc. - Troy MI

International Classification:

H01M 212

US Classification:

429 54

Abstract:

The electrochemical cell of the instant invention includes a case having a gas outlet, one or more positive electrodes positioned within the case, one or more negative electrodes positioned within the case electrode separators positioned between the positive and negative electrodes, electrolyte positioned within the case, and a pressure vent for releasing internal pressure occurring in the case to the surrounding atmosphere. The pressure vent is affixed to the case covering the gas outlet, the pressure vent includes a vent housing having a hollow interior area in gaseous communication with the surrounding atmosphere and the interior of the case via the gas outlet, a pressure release piston positioned within the hollow interior area, the pressure release piston sized to surround the gas outlet and having a seal groove configured to encapsulate all but one surface of a seal mounted within the seal groove, leaving the non-encapsulated surface of the seal exposed, and a compression spring positioned to urge the pressure release piston to compress the seal in the seal groove and block the gas outlet in the case.