Corning Incorporated

Jia Liu

Kishor Purushottam Gadkaree

Natesan Venkataraman

Kamjula Pattabhirami Reddy

Andrew Fleitz Husted

Thomas LaVee Buck

Atul Kumar

Daniel Ohen Ricketts

Shrisudersan Jayaraman

Rahul Suryakant Kadam

James Robert Lim

Christopher Mark Schweiger

Naveen Kekre

A method of making activated carbon including:

Method of making alkali activated carbon

An activated carbon composition having a relatively high transition metal content and a low covalent oxygen as defined herein. Also disclosed is a method of making and using the disclosed activated carbon composition, and an EDLC article incorporating the activated carbon composition.

Activated carbon and electric double layer capacitor thereof

A cathode in a lithium ion capacitor, including: Also disclosed is a method of making the cathode and using the cathode in a lithium ion capacitor.

Cathode for a lithium ion capacitor

An electrode in an energy storage device, including:

Energy storage device and methods for making and use

A positive electrode for an energy storage device includes a first activated carbon material comprising pores having a size of &#x2266;1 nm, which provide a combined pore volume of &#x3e;0.3 cm/g, pores having a size of &#x3e;1 nm to &#x2266;2 nm, which provide a combined pore volume of &#x2267;0.05 cm/g, and &#x3c;0.15 cm/g combined pore volume of any pores having a size of &#x3e;2 nm. A negative electrode for the energy storage device includes a second activated carbon material comprising pores having a size of &#x2266;1 nm, which provide a combined pore volume of &#x2266;0.3 cm/g, pores having a size of &#x3e;1 nm to &#x2266;2 nm, which provide a combined pore volume of &#x2267;0.05 cm/g, and &#x3c;0.15 cm/g combined pore volume of any pores having a size of &#x3e;2 nm. The total oxygen content in at least the first activated carbon material is at most 1.5 wt. %.

High-voltage and high-capacitance activated carbon and carbon-based electrodes

A method for forming activated carbon from carbon feedstock involves forming particles of the carbon feedstock, introducing the carbon feedstock particles into a microwave reaction chamber and forming a fluidized bed of the particles within the chamber, introducing steam into the reaction chamber, and introducing microwaves into the reaction chamber to heat the particles using microwave energy and react the heated particles with the steam to form activated carbon.

Carbon activation in a microwave fluidized bed process

A method for producing an amorphous activated carbon material includes heating a carbon precursor to a temperature effective to form a partially-dense amorphous carbon, and activating the partially-dense amorphous carbon to produce an amorphous activated carbon. To facilitate efficient activation of the amorphous carbon, the carbonization is controlled to produce an amorphous carbon material that, prior to activation, has a density of from 85% to 99% of a maximum density for the amorphous carbon.

Amorphous activated carbon materials and methods for producing the same

Nanoporous activated carbon material having a high specific capacitance in EDLCs and controlled oxygen content, and methods for making such activated carbon material. Reduction of oxygen content is achieved by (a) curing a carbon precursor/additive mixture in an inert or reducing environment, and/or (b) refining (heating) activated carbon material after synthesis in an inert or reducing environment. The inert or reducing environment used for curing or refining is preferably substantially free of oxygen.

Highly porous activated carbon with controlled oxygen content

A method for activating carbon via alkali activation processes includes the introduction of water vapor during the activation phase to control the formation of highly reactive by-products. The method includes heating the mixture of a carbon-containing first material and a alkali-containing second material, introducing water vapor at a first threshold temperature and stopping water vapor introduction at a second threshold temperature. The activated carbon material is suitable for carbon-based electrodes and for use in high energy density devices.

Method for making alkali activated carbon

A method for producing an activated carbon material includes heating a non-lignocellulosic carbon precursor to form a carbon material and reacting the carbon material with steam to form an activated carbon material. The activated carbon material is suitable to form improved carbon-based electrodes for use in high energy density devices.

Steam activated non-lignocellulosic based carbons for ultracapacitors

A method for producing a low oxygen content activated carbon material includes heating a natural, non-lignocellulosic carbon precursor in an inert or reducing atmosphere to form a first carbon material, mixing the first carbon material with an inorganic compound to form an aqueous mixture, heating the aqueous mixture in an inert or reducing atmosphere to incorporate the inorganic compound into the first carbon material, removing the inorganic compound from the first carbon material to produce a second carbon material, and heating the second carbon material in an inert or reducing atmosphere to form the low oxygen content activated carbon material. The activated carbon material is suitable to form improved carbon-based electrodes for use in high energy density devices.

High-capacitance and low-oxygen porous carbon for EDLCs

An electric double layer capacitor electrode includes microporous carbon, wherein the microporous carbon includes pores having a size of 1 nm or less, which provide a combined pore volume of at least 0.3 cm/g, pores having a size of from 1 nm to 2 nm, which provide a combined pore volume of at least 0.05 cm/g, and less than 0.15 cm/g combined pore volume of any pores having a size greater than 2 nm.

Microporous activated carbon for EDLCS

An electrochemical double layer capacitor electrode comprising microporous carbon, wherein the microporous carbon comprises a median pore width of 1.2 nanometers or less, and a ratio of BET surface area to total pore volume greater than 2200 m/cm.

Porous carbon for electrochemical double layer capacitors

A coating method including forming a coating liquid having modified particles, the modified particles being formed by covalently attaching at least one modifier to at least one particle; forming a coating layer on a surface of subphase liquid in a container; and separating a substrate and the container.

Growing community of inventors

Painted Post, NY, United States of America

Jia Liu