Nikhil Ashok Koratkar

20130184143, Jul 18, 2013

Jul 27, 2012

13/560463

Erica L. Corral - , US
Luke S. Walker - Tucson AZ, US
Victoria R. Marotto - Tucson AZ, US
Mohammad A. Rafiee - Troy NY, US
Nikhil Koratkar - Troy NY, US

THE ARIZONA BOARD OF REGENTS, on behalf of THE UNIVERSITY OF ARIZONA - Tucson AZ

C04B 35/584

501154, 501 1, 264442

The disclosure provides novel graphene-reinforced ceramic composites and methods for making such composite materials.

20140050910, Feb 20, 2014

Aug 14, 2013

13/966395

Abhay V. Thomas - Troy NY, US
Nikhil Koratkar - Clifton Park NY, US
Eklavya Singh - Troy NY, US

Rensselaer Polytechnic Institute - Troy NY

H01M 4/133
H01M 4/96
H01M 4/583
H01G 9/042
H01M 4/66
C25D 5/48

428219, 549512, 423448, 205224, 428221

A method of synthesizing a sheet of graphene oxide paper includes combining graphite oxide with water to form a colloidal suspension of graphene oxide; providing a working electrode and a counter electrode such that the working electrode and the counter electrode are inserted in the colloidal suspension; applying a potentiostatic field until a film of graphene oxide having a predetermined thickness forms on the working electrode; and drying the film to form a graphene oxide paper. The method may also include reducing the graphene oxide to graphene by either photo-thermal reduction or thermal exfoliation. The reduced graphene material exhibits high energy density as well as high power density making it useful as anode material for rechargeable batteries.

20060251543, Nov 9, 2006

Dec 19, 2003

10/540112

Nikhil Koratkar - Troy NY, US
Pulickel Ajayan - Troy NY, US
Ashish Modi - Troy NY, US
Eric Lass - Troy NY, US

G01N 27/00

422098000

An ionization gas sensor includes a first electrode and a second electrode, such as cathode and anode electrodes. The second electrode is a carbon nanotube film having a carbon nanotube density such that the film behaves as a conducting sheet electrode. The sensor also includes a voltage source electrically connected to the first and to the second electrodes. The voltage source is adapted to generate an electric field near tips of carbon nanotubes in the carbon nanotube film which induces electrical breakdown of an analyte gas, which leads to a self-sustaining inter-electrode arc discharge

20220263336, Aug 18, 2022

Apr 27, 2022

17/730651

- Woburn MA, US
Nikhil A. Koratkar - Clifton Park NY, US

H02J 7/35
H01M 4/46
H01M 4/485
H01M 4/525
H01M 4/58
H02J 3/38
H01M 4/38
H01M 4/505
H01M 4/587
H01M 10/36
H01M 10/42
H01M 10/44

A rechargeable battery using a solution of an aluminum salt as an electrolyte is disclosed, as well as methods of making the battery and methods of using the battery.

20210367281, Nov 25, 2021

May 19, 2021

17/324271

- Troy NY, US
Eklavya Singh - Troy NY, US
Nikhil Koratkar - Clifton Park NY, US
Toh-Ming Lu - Watervliet NY, US

Rensselaer Polytechnic Institute - Troy NY

H01M 10/42
H01M 4/133
H01M 4/134
H01M 4/1393
H01M 4/1395
H01M 4/36
H01M 4/38
H01M 10/052
H01M 4/04
H01M 4/587
H01M 4/62
H01M 10/0525
H01M 12/08

A lithium-based energy storage system includes an electrolyte and an electrode. The electrode has a conformal coating of parylene. The parylene forms an artificial solid electrolyte interface (SEI). The electrode may include a material chosen from silicon, graphene-silicon composite, carbon-sulfur, and lithium. The use of parylene to form a conformal coating on an electrode in a lithium-based energy storage system is also disclosed.

20210050628, Feb 18, 2021

Mar 29, 2019

17/042247

- Troy NY, US
Nikhil KORATKAR - Clifton Park NY, US
Swastik BASU - Troy NY, US
Prateek HUNDEKAR - Troy NY, US

RENSSELAER POLYTECHNIC INSTITUTE - Troy NY

H01M 10/42
H01M 4/136
H01M 4/58
H01M 4/38
H01M 4/134
H01M 4/505
H01M 4/525

A method of prolonging service life of an energy storage device such as a lithium-ion battery includes temporarily operating the battery at an elevated current density. Cycling of lithium-ion batteries at regular current densities results in the generation of lithium-metal dendrites at the surface of the anode, particularly in batteries where the anode is lithium metal. The lithium metal dendrites pose a threat to damage other components of the battery, such as separators, as well as causing an electrical short. Operating the battery in bursts at the elevated current density results in self-heating at the anode surface that merges adjacent lithium-metal dendrites and an overall smoothing of the anode surface. This method is also applicable to other alkali-metal-based batteries and chemistries.

20200287232, Sep 10, 2020

Mar 6, 2020

16/812261

- Bedford MA, US
Kripa Kiran Varanasi - Lexington MA, US
Trevor John Simmons - Troy NY, US
Mukesh Chatter - Concord MA, US
Nikhil Ashok Koratkar - Clifton Park NY, US

H01M 10/054
H01M 4/505
H01M 4/78
H01M 4/136
H01M 4/58
H01M 4/62
H01M 4/66

Described herein is an aqueous aluminum ion battery featuring an aluminum or aluminum alloy/composite anode, an aqueous electrolyte, and a manganese oxide, aluminosilicate or polymer-based cathode. The battery operates via an electrochemical reaction that entails an actual transport of aluminum ions between the anode and cathode. The compositions and structures described herein allow the aqueous aluminum ion battery described herein to achieve: (1) improved charge storage capacity; (2) improved gravimetric and/or volumetric energy density; (3) increased rate capability and power density (ability to charge and discharge in shorter times); (4) increased cycle life; (5) increased mechanical strength of the electrode; (6) improved electrochemical stability of the electrodes; (7) increased electrical conductivity of the electrodes, and (8) improved ion diffusion kinetics in the electrodes as well as the electrolyte.

20200203987, Jun 25, 2020

Mar 2, 2020

16/807103

- Bedford MA, US
Nikhil A. Koratkar - Clifton Park NY, US

H02J 7/35
H01M 4/46
H01M 4/485
H01M 4/525
H01M 4/58
H01M 4/38
H01M 4/505
H01M 4/587
H01M 10/36
H01M 10/42
H01M 10/44

A rechargeable battery using a solution of an aluminum salt as an electrolyte is disclosed, as well as methods of making the battery and methods of using the battery.