Hossein V Maleki

US Patent:

6797427, Sep 28, 2004

Filed:

Aug 9, 2001

Appl. No.:

09/925199

Inventors:

Hossein Maleki - Lawrenceville GA
Anaba Anani - Lawrenceville GA
Ganesh Venugopal - Duluth GA

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H01M 1050

US Classification:

429120, 429149, 429153, 429159, 429163, 624577

Abstract:

A battery for use in various temperature environments includes a plurality of cells arranged in a close packing arrangement and a sleeve that is disposed around the cells. The sleeve is constructed from a material that acts as an insulator at relatively low temperatures and that acts as a conductor at relatively high temperatures.

US Patent:

6894459, May 17, 2005

Filed:

Jul 29, 2003

Appl. No.:

10/628610

Inventors:

Jason N. Howard - Alpharetta GA, US
Hossein Maleki - Lawrenceville GA, US

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H02J007/16

US Classification:

320150

Abstract:

A method of charging a battery is provided that alters the amount of energy stored within the battery based upon a temperature profile across time. Battery materials and components, like liquid electrolyte or electrodes for instance, can be damaged when a rechargeable cell is exposed to elevated temperatures for extended amounts of time, thereby reducing the overall amount of energy that may be stored within the cell. This method monitors stored energy capacity and temperature. When a fully-charged cell is held at a temperature that exceeds a predetermined temperature threshold for an extended amount of time, the method discharges the cell, thereby reducing the amount of energy stored within the cell. For example, when a single, lithium-ion cell is maintained at 4. 2 V for over 10 hours, the method will discharge the cell by roughly 1% or 50 mV.

US Patent:

8318355, Nov 27, 2012

Filed:

Dec 6, 2002

Appl. No.:

10/497859

Inventors:

Hossein Maleki - Lawrenceville GA, US
Robert J. Selman - Chicago IL, US
Abdelbast Guerfi - Brossard, CA
Elisabeth Dupuis - McMasterville, CA
Karim Zaghib - Longueuil, CA

Assignee:

Hydro-Quebec - Montreal, Quebec

International Classification:

H01M 4/58
H01M 4/13
H01M 4/88
H01B 1/04
C08K 3/04

US Classification:

4292318, 429217, 2521821, 252502, 524495

Abstract:

A composite of particles comprising a high crystallinity carbon and a low crystallinity carbon, wherein the low crystallinity carbon exhibits an average lattice constant d=(002) of 0. 350 nm or more and a crystallite size L=(002) in the diffraction of C axis of 25 nm or less, as characterized by wide-angle X ray diffraction measurements, the high crystallinity carbon exhibits an average lattice constant d=(002) of 0. 338 nm or less and a crystallinity size L=(002) in the diffraction of C axis of 40 nm or more, as characterized by wide-angle X-ray diffraction measurements, the high crystallinity carbon having at least 50% of its external surface embedded within or surrounded by a matrix of low crystallinity carbon.

US Patent:

8642205, Feb 4, 2014

Filed:

Aug 9, 2010

Appl. No.:

12/853055

Inventors:

Hossein Maleki - Lawrenceville GA, US
Jerald A. Hallmark - Sugar Hill GA, US

Assignee:

Motorola Mobility LLC - Libertyville IL

International Classification:

H01M 2/02
H01M 2/22
H01M 2/30

US Classification:

429158, 429121, 429178

Abstract:

A battery pack with reduced magnetic field emissions includes a plurality of cells () coupled electrically together by a first electrical conductor () and a second electrical conductor (). The first electrical conductor () couples positive terminals () to a terminal block (), while the second electrical conductor () couples the negative terminals () to the terminal block (). Each cell () contains an asymmetrical internal electrode construction () having electrical tabs () coupled to a cathode and anode. The cells () can be arranged with their corresponding asymmetrical internal electrode constructions () oriented in different directions to reduce magnetic field emissions. The first electrical conductor () and second electrical conductor () can be routed such that magnetic fields generated by discharge currents tend to reduce other magnetic fields produced by other components within the battery pack.

US Patent:

20020102458, Aug 1, 2002

Filed:

Dec 2, 2000

Appl. No.:

09/728804

Inventors:

Hossein Maleki - Lawrenceville GA, US
Guoping Deng - Lawrenceville GA, US
Anaba Anani - Lawrenceville GA, US

International Classification:

H01M004/62
H01M004/58

US Classification:

429/217000, 429/231800

Abstract:

A lithium-ion battery having at least an anode that includes phenol formaldehyde in a range of 0.1% to 10% by weight as a binder material. The phenol formaldehyde, or a mixture of phenol formaldehyde with polyvinylidene fluoride (PVDF), is used as a binding material in a Li-ion battery negative electrode to decrease the exothermic reaction of the battery during charging and discharging, which accordingly lessens the risk of thermal runaway and rupture of the battery.

US Patent:

20030099883, May 29, 2003

Filed:

Oct 10, 2001

Appl. No.:

09/974283

Inventors:

Rosibel Ochoa - Lawrenceville GA, US
Hossein Maleki - Lawrenceville GA, US

International Classification:

H01M004/62
H01M004/52

US Classification:

429/232000, 429/231100, 429/231300, 429/223000

Abstract:

A lithium-ion battery that includes a plurality of electrodes, such as an anode and cathode, and at least one of the plurality of electrodes is made of a conductive material having a single wall Fullerene-carbon nanotube additive. The use of single wall carbon nanotubes as an additive in the electrode materials, even in very small amounts, improves the capacity, thermal stability, and safety of the electrode materials.

US Patent:

20060119322, Jun 8, 2006

Filed:

Dec 4, 2004

Appl. No.:

11/004295

Inventors:

Hossein Maleki - Lawrenceville GA, US
Daniel Jakl - Lawrenceville GA, US
James Krause - Norcoss GA, US

International Classification:

H02J 7/00

US Classification:

320150000

Abstract:

A battery pack having at least one electrochemical cell and a temperature dependent boost circuit is provided. Since the cell voltage is diminished at low temperatures, and as portable electronic devices typically have a minimum operational voltage limit, the boost circuit is actuated at low temperatures to step up the voltage from the cell to the electronic device. In one embodiment, the boost circuit is coupled serially between the cell and the output terminals of the battery pack. In parallel with the boost circuit is a boost bypass circuit. A controller senses the temperature of the battery pack from a temperature sensor, like a thermistor. When the temperature falls below a predetermined minimum temperature threshold, the controller actuates the boost circuit, thereby increasing the output voltage of the pack. Concurrently with the actuation of the boost circuit, the controller causes the boost bypass circuit to enter a high impedance state.

US Patent:

20110262779, Oct 27, 2011

Filed:

Oct 31, 2010

Appl. No.:

12/916573

Inventors:

Hossein Maleki - Lawrenceville GA, US
Michael Frenzer - Palatine IL, US
Jerald A. Hallmark - Sugar Hill GA, US
Jim Krause - Norcross GA, US

International Classification:

H01M 2/00

US Classification:

429 10

Abstract:

A battery pack having reduced magnetic emitted noise includes a housing having an electrode assembly () disposed therein. The electrode assembly () includes a cell stack comprising a cathode () and an anode () with a separator disposed therebetween. The cell stack of the electrode assembly () has a first end () and a second end (). A first electrical conductor () coupled to the anode () at the first end () of the cell stack. A second electrical conductor () coupled to the cathode () at the first end () of the cell stack. The first electrical conductor () and second electrical conductor () can be configured with different lengths, geometrical shapes, or placement locations such that during discharge, current () passes across the cathode () and anode () in substantially opposite directions at a substantially similar magnitude so as to reduce magnetic field noise generated by the electrode assembly ().