Joseph B Kejha

6468697, Oct 22, 2002

Oct 22, 1999

09/422724

George R. Ferment - Randolph NJ
Joseph B. Kejha - Meadowbrook PA

Lithium Technology Corporation - Plymouth Meeting PA

H01M 216

429306, 429303

Composite polymer electrolytes for use in alkali-metal based electrochemical devices, which electrolytes contain chopped electrically non-conductive fibers in an electrolyte slurry which has been cured on a release tape and then pressed onto an electrode, or which slurry is coated directly onto said electrode, and then cured.

7036616, May 2, 2006

Jul 9, 1999

09/350713

Joseph B. Kejha - Meadowbrook PA, US

Electrion, Inc. - Meadowbrook PA

B60K 6/00

180 653, 180 654, 903908, 903925

An electric vehicle which carries at least two passengers, which has at least three wheels, said passengers sitting in tandem and most of the batteries or fuel cell systems are located on the sides of the passengers. The vehicle has an aerodynamically shaped body with substantially reduced frontal area and drag. The body is lightweight, made from shock absorbing materials and structures, and has pressure-airless tires, which enhances the safety of the passengers. The vehicle also includes an advanced hydrogen-electric hybrid propulsion system with quick refueling from existing infrastructure and various additional optional features and systems.

7141332, Nov 28, 2006

Jul 23, 2002

10/201759

Joseph B. Kejha - Meadowbrook PA, US
David Chua - Wayne PA, US
Hsiu-Ping Lin - Princeton NJ, US

H01M 2/02
H01M 2/08
H01M 10/04
H01G 2/10

429176, 429185, 429163, 429171, 429174, 429178, 429181, 296232, 296234, 361518, 361517, 361536, 361535

The present invention pertains to lightweight, hard and leakproof prismatic packaging structures for electrochemical devices and economical method of assembly and hermetic sealing of said structures by plastic layers attached to their metal walls. Metal welding is avoided and superior protection of lithium polymer cells and other cells is thus provided at lesser cost.

7399554, Jul 15, 2008

Mar 17, 2005

11/081350

Joseph B. Kejha - Folcroft PA, US

H01M 4/58
H01M 4/00
H01M 10/46

42923195, 4292181, 429220, 429329, 429330, 429337, 429338, 320103

A hybrid rechargeable lithium battery, which includes a plurality of high power rechargeable cells, having nano-particles therein, and high energy density rechargeable cells, with the high energy cells recharging the high power cells. The battery preferably includes a low volt parallel charger to simultaneously and individually charge both the high power and high energy cells, through a protective device. All cells are then discharged in series at high voltage, and are individually protected from over discharge. A rechargeable battery having both high power and high energy density cells is thus provided.

7713313, May 11, 2010

Apr 13, 2006

11/403326

W. Novis Smith - Philadelphia PA, US
Joel R. McCloskey - Philadelphia PA, US
Joseph B. Kejha - Meadowbrook PA, US
James J. Gormley - Ardsley PA, US

Lithdyne LLC - Anaheim CA

H01M 6/00
H01M 4/00
H01M 4/50

296231, 429128, 429224

The present invention provides a process for preparing lithium manganate having lithium-in cell stability by utilizing manganese oxides having lower oxidation states in the furnacing step and by using stoichiometric amounts of lithium hydroxide monohydrate and a manganese oxide in water as a starting mixture. Cr, Ni, Mg, AL oxides are optionally added.

7829223, Nov 9, 2010

Oct 24, 2005

11/257293

W. Novis Smith - Philadelphia PA, US
Joseph B. Kejha - Meadowbrook PA, US
James J. Gormley - Ardsley PA, US
Joel R. McCloskey - Philadelphia PA, US

H01M 4/00

42923195, 4292313

There is provided a process for preparing lithium cobaltate and to lithium-containing cobalt oxides which is used in lithium battery cathodes. Also, there is provided cathodes for lithium batteries.

20030014859, Jan 23, 2003

Apr 9, 2002

10/119220

Joseph Kejha - Meadowbrook PA, US
David Chua - Wayne PA, US
Hsiu-Ping Lin - Princeton NJ, US

H01M010/04

029/623400, 029/623500

The present invention pertains to hybrid lithium-ion based electrochemical devices having a thin microporous polymeric separator bonded to their porous electrodes without special treatment of the separator and without additional adhesive layers. Structures of superior high energy density and power density are disclosed herein, as well as the methods of their assembly and automated production.

20030027051, Feb 6, 2003

Jul 23, 2001

09/911036

Joseph Kejha - Meadowbrook PA, US
David Chua - Wayne PA, US
Hsiu-Ping Lin - Princeton NJ, US

H01M004/64
B05D005/12
B05D001/18

429/233000, 429/241000, 427/058000, 427/436000

An economical manufacturing method and structure of electrodes for lithium based electrochemical devices, such as batteries and capacitors, which method results in the electrodes having various metal foil or grid current collectors embedded in the middle of their thickness by continuous dipping of said collectors in an electrode slurry, which is then solidified. The electrodes have superior performance and low resistance, due to short electron's travel to the collector, excellent adhesion of the electrode material to the grid, and uniform thickness at unlimited width. The method also includes additional steps and treatments to produce high quality electrodes.