Honda Motor Co., Ltd.

Alliance for Sustainable Energy, LLC

Other

Midwest Research Institute

Anne C Dillon

Michael J Heben

Leonid Grigorian

Louis Hornyak

Steven McClellan George

Chunmei Ban

Thomas Gennett

Philip Anthony Parilla

Archie Harvin Mahan

Andrew S Cavanagh

Zhuangchun Wu

Jeffrey L Alleman

Lee Se-Hee

Jung Yoon Seok

An electrode () is provided that may be used in an electrochemical device () such as an energy storage/discharge device, e.g., a lithium-ion battery, or an electrochromic device, e.g., a smart window. Hydrothermal techniques and vacuum filtration methods were applied to fabricate the electrode (). The electrode () includes an active portion () that is made up of electrochemically active nanoparticles, with one embodiment utilizing 3d-transition metal oxides to provide the electrochemical capacity of the electrode (). The active material () may include other electrochemical materials, such as silicon, tin, lithium manganese oxide, and lithium iron phosphate. The electrode () also includes a matrix or net () of electrically conductive nanomaterial that acts to connect and/or bind the active nanoparticles () such that no binder material is required in the electrode (), which allows more active materials () to be included to improve energy density and other desirable characteristics of the electrode. The matrix material () may take the form of carbon nanotubes, such as single-wall, double-wall, and/or multi-wall nanotubes, and be provided as about 2 to 30 percent weight of the electrode () with the rest being the active material ().

Method of fabricating electrodes including high-capacity, binder-free anodes for lithium-ion batteries

Electrodes for lithium batteries are coated via an atomic layer deposition process. The coatings can be applied to the assembled electrodes, or in some cases to particles of electrode material prior to assembling the particles into an electrode. The coatings can be as thin as 2 &#x212b;ngstroms thick. The coating provides for a stable electrode. Batteries containing the electrodes tend to exhibit high cycling capacities.

Lithium battery electrodes with ultra-thin alumina coatings

The invention relates to a chemical vapor deposition process for the continuous growth of a carbon single-wall nanotube where a carbon-containing gas composition is contacted with a porous membrane and decomposed in the presence of a catalyst to grow single-wall carbon nanotube material. A pressure differential exists across the porous membrane such that the pressure on one side of the membrane is less than that on the other side of the membrane. The single-wall carbon nanotube growth may occur predominately on the low-pressure side of the membrane or, in a different embodiment of the invention, may occur predominately in between the catalyst and the membrane. The invention also relates to an apparatus used with the carbon vapor deposition process.

Continuous growth of single-wall carbon nanotubes using chemical vapor deposition

Apparatus () for producing a multi-wall carbon nanotube () may comprise a process chamber (), a furnace () operatively associated with the process chamber (), and at least one filament () positioned within the process chamber (). At least one power supply () operatively associated with the at least one filament () heats the at least one filament () to a process temperature. A gaseous carbon precursor material () operatively associated with the process chamber () provides carbon for forming the multi-wall carbon nanotube (). A metal catalyst material () operatively associated with the process () catalyzes the formation of the multi-wall carbon nanotube ().

Hot wire production of single-wall and multi-wall carbon nanotubes

Metal-doped single-walled carbon nanotubes and production thereof. The metal-doped single-walled carbon nanotubes may be produced according to one embodiment of the invention by combining single-walled carbon nanotube precursor material and metal in a solution, and mixing the solution to incorporate at least a portion of the metal with the single-walled carbon nanotube precursor material. Other embodiments may comprise sputter deposition, evaporation, and other mixing techniques.

Metal-doped single-walled carbon nanotubes and production thereof

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Boulder, CO, United States of America

Anne C Dillon