Josip A Caja

7217354, May 15, 2007

Aug 29, 2003

10/652452

Shannon Mark Mahurin - Knoxville TN, US
Sheng Dai - Knoxville TN, US
Josip Caja - Knoxville TN, US

UT-Battelle, LLC - Oak Ridge TN

G01N 27/22

205775, 204400, 422 98

The present invention is a gas detector and method for using the gas detector for detecting and identifying volatile organic and/or volatile inorganic substances present in unknown vapors in an environment. The gas detector comprises a sensing means and a detecting means for detecting electrical capacitance variance of the sensing means and for further identifying the volatile organic and volatile inorganic substances. The sensing means comprises at least one sensing unit and a sensing material allocated therein the sensing unit. The sensing material is an ionic liquid which is exposed to the environment and is capable of dissolving a quantity of said volatile substance upon exposure thereto. The sensing means constitutes an electrochemical capacitor and the detecting means is in electrical communication with the sensing means.

7582380, Sep 1, 2009

Apr 8, 2004

10/820638

Josip Caja - Knoxville TN, US

Electrochemical Systems, Inc. - Knoxville TN

H01M 10/40

429188, 4292311, 4292313, 429303

A lithium-ion rechargeable cell is described which contains an electrolyte comprising a pyrazolium cation, an imidazolium cation, or a combination thereof, as well as lithium ion, and at least one non-Lewis acid derived counter-ion. Electrochemical cells containing an anode, a cathode, and the ionic liquid electrolytes preferably have effective charge/discharge capacity and charging efficiency at low temperatures and at high temperatures.

7824800, Nov 2, 2010

Jun 10, 2005

11/149592

Josip Caja - Knoxville TN, US

Electrochemical Systems, Inc. - Knoxville TN

H01M 10/40

429188, 4292311, 4292313, 429303

A lithium-ion rechargeable cell is described which contains an electrolyte comprising a pyrazolium cation, an imidazolium cation, or a combination thereof, as well as lithium ion, and at least one non-Lewis acid derived counter-ion and which has a ratio of cathode capacity to anode capacity of 1 or less, 1 or greater, and preferably about 1. 3 or greater. Electrochemical cells containing an anode, a cathode, and the ionic liquid electrolytes preferably have effective charge/discharge capacity and charging efficiency at low temperatures and at high temperatures.

20070003831, Jan 4, 2007

Jul 1, 2005

11/174257

Michael Fripp - Carrollton TX, US
Syed Hamid - Dallas TX, US
Josip Caja - Knoxville TN, US
Mario Caja - Knoxville TN, US

H01M 2/02
H01M 2/08
H01M 2/06
H01M 10/44
H01M 10/50
H02J 7/00

429164000, 429176000, 429181000, 429050000, 429120000, 320160000, 320137000

Construction and operation of an oilfield molten salt battery. A battery includes an outer case, an elongated mandrel positioned within the outer case, and the mandrel being an electrical component of the battery. Another battery includes an electrical pickup, and a polymer insulator providing insulation between the outer case and the pickup. A method of charging a battery for use in a subterranean well includes the steps of: providing the battery including an electrolyte, and anode and cathode electrodes, the electrolyte being a molten salt comprising lithium salt, and at least one of the electrodes comprising lithium atoms; positioning the battery within a wellbore; and then charging the battery. Another method includes the steps of: heating the lithium ion molten salt battery; then charging the battery; and then positioning the battery within a wellbore.

20130106366, May 2, 2013

Dec 13, 2012

13/714231

Syed HAMID - Dallas TX, US
Josip CAJA - Knoxville TN, US
Mario CAJA - Knoxville TN, US

HALLIBURTON ENERGY SERVICES, INC. - Houston TX

H02J 7/00

320141, 320137

Construction and operation of an oilfield molten salt battery. A battery includes an outer case, an elongated mandrel positioned within the outer case, and the mandrel being an electrical component of the battery. Another battery includes an electrical pickup, and a polymer insulator providing insulation between the outer case and the pickup. A method of charging a battery for use in a subterranean well includes the steps of: providing the battery including an electrolyte, and anode and cathode electrodes, the electrolyte being a molten salt comprising lithium salt, and at least one of the electrodes comprising lithium atoms; positioning the battery within a wellbore; and then charging the battery. Another method includes the steps of: heating the lithium ion molten salt battery; then charging the battery; and then positioning the battery within a wellbore.

63261049, Dec 4, 2001

Oct 14, 1999

9/417593

Josip Caja - Knoxville TN

Electrochemical Systems, Inc. - Knoxville TN

H01M 604

429188

An electrolyte, such as for a lithium rechargeable cell, is described which contains a pyrazolium cation and may also contain a lithium salt. The lithium salt may be at least one of LiBF. sub. 4, LiAsF. sub. 6, LiPF. sub. 6, and LiTF. The electrolyte, when used in an electrochemical cell, has a charge/discharge capacity and charging efficiency that is superior to the same properties of ionic liquid electrolytes without a pyrazolium cation. Electrochemical cells are also described and contain an anode, a cathode, and the pyrazolium cation electrolyte.

55522416, Sep 3, 1996

May 10, 1995

8/438609

Gleb Mamantov - late of Knoxville TN
Josip Caja - Knoxville TN

Electrochemical Systems, Inc. - Knoxville TN

H01M 0436
H01M 0460
H01M 1036

429103

Low temperature molten salt compositions comprised of a mixture of a metal halide, such as but not limited to aluminum trichloride, and a fluoropyrazolium salt, such as but not limited to 1,2-dimethyl-4-fluoropyrazolium chloride, which are resistant towards oxidation over a wide temperature gradient and are useful as electrolytes in electrochemical cells.