Cabot Corporation

Aurelien L DuPasquier

Andriy Korchev

Miodrag Oljaca

Paolina Atanassova

Berislav Blizanac

Geoffrey D Moeser

Kenneth C Koehlert

Yipeng Sun

Agathagelos Kyrlidis

Ned J Hardman

Kevin Girard

Carbon nanostructures are used to prepare electrode compositions for lithium ion batteries. In one example, an anode for a Li ion battery includes three-dimensional carbon nanostructures made of highly entangled nanotubes, fragments of carbon nanostructures and/or fractured nanotubes, which are derived from the carbon nanostructures, are branched and share walls with one another. Amounts of carbon nanostructures employed can be less than or equal to 0.5 weight % relative to the weight of the electrode composition.

Anode electrode compositions for battery applications

An electrode for an energy storage device includes carbon black particles having (a) a Brunauer-Emmett-Teller (BET) surface area ranging from 70 to 120 m/g; (b) an oil absorption number (OAN) ranging from 180 to 310 mL/100 g; (c) a surface energy less than or equal to 15 mJ/m; and (d) either an Lcrystallite size less than or equal to 29 &#x212b;, or a primary particle size less than or equal to 24 nm.

Electrodes, compositions, and devices having high structure carbon blacks

An electrode, includes an electrically conductive substrate; and a composition supported by a surface of the electrically conductive substrate, the composition comprising carbon black particles having a Brunauer-Emmett-Teller (BET) surface area ranging from 80 m/g to 1100 m/g, an oil absorption number equal to or less than 300 mL/100 g, a surface energy of 10 mJ/mor less, and a particle size distribution with a Dvalue equal to or less than 165 nm.

Electrodes containing carbon black particles and related methods

Disclosed herein are compositions, which can be used to coat electrode plates, comprising at least one carbonaceous material and at least one additive, wherein the at least one additive comprises a metal ion selected from calcium, barium, potassium, magnesium, and strontium ion, and wherein the metal ion is present in an amount ranging from 0.5 wt. % to 3 wt. % relative to the total weight of carbonaceous material. Also disclosed are electrodes and lead acid batteries comprising such compositions, and methods of making the compositions.

Carbonaceous materials for lead acid batteries

Disclosed herein are oxidized carbon blacks, which can be incorporated into electrode compositions for lead acid batteries. In some embodiments, the oxidized carbon blacks have a BET surface area ranging from 650 to 2100 m/g; an oil absorption number (OAN) ranging from 35 to 500 mL/100 g; and a volatile content of at least 5.5 wt. % relative to the total weight of the oxidized carbon black, as determined by weight loss at 950&#xb0; C.

Oxidized carbon blacks and applications for lead acid batteries

Disclosed herein are cathode formulations comprising a lithium ion-based electroactive material and a carbon black having a BET surface area ranging from 130 to 700 m/g and a ratio of STSA/BET ranging from 0.5 to 1. Also disclosed are cathodes comprising the cathode formulations, electro-chemical cells comprising the cathodes, and methods of making the cathode formulations and cathodes.

Conductive carbons for lithium ion batteries

Disclosed herein are cathode formulations comprising graphenes. One embodiment provides a cathode formulation comprising an electroactive material, and graphene interspersed with the electroactive material, wherein a ratio of (mean electroactive material domain size)/(mean graphene lateral domain size) ranges from 3:2 to 15:1. Also disclosed are cathodes comprising such materials and methods of making such cathodes.

Growing community of inventors

Westford, MA, United States of America

Aurelien L DuPasquier