Ut-battelle, Inc.

New Mexico State University

Raymond Robert Unocic

Chaitanya Kumar Narula

Nancy Johnston Dudney

Sergei V Kalinin

Jagjit Nanda

Stephen Jesse

Surendra Kumar Martha

Sreekanth Pannala

Albina Y Borisevich

Sheng Dai

Ivan Vlassiouk

Sergei Smirnov

Shannon Mark Mahurin

Bobby G Sumpter

Ondrej E Dyck

Sumedh Pradeep Surwade

Andrew R Lupini

Qian He

A system and method (referred to as the system) fabricates controllable atomic assemblies in two and three dimensions. The systems identify by a non-invasive imager, a local atomic structure, distribution of vacancies, and dopant atoms and modify, by a microscopic modifier, the local atomic structure, via electron beam irradiation. The systems store, by a knowledge base, cause-and-effect relationships based on a non-invasive imaging and electron scans. The systems detect, by detectors, changes in the local atomic structure induced by the electron irradiation; and fabricate, a modified atomic structure by a beam control software and feedback.

Atomic-scale e-beam sculptor

A lithium ion battery includes a positive electrode comprising carbon fibers, a binder composition with conductive carbon, and a lithium rich composition. The lithium rich composition comprises at least one selected from the group consisting of Li(My MzMw)Owhere x+y+z+w=, and where M, Mand Mare interchangeably manganese, nickel and cobalt, and LiM*M*O, where M* and M*are manganese and nickel, respectively, with x=. A negative electrode comprises carbon fibers having bound thereto silicon nanoparticles, and a mesophase pitch derived carbon binder between the silicon nanoparticles and the carbon fibers. An electrolyte is interposed between the positive electrode and the negative electrode. Methods of making positive and negative electrodes are also disclosed.

High energy density secondary lithium batteries

A method for sculpting crystalline oxide structures for bulk nanofabrication is provided. The method includes the controlled electron beam induced irradiation of amorphous and liquid phase precursor solutions using a scanning transmission electron microscope. The atomically focused electron beam includes operating parameters (e.g., location, dwell time, raster speed) that are selected to provide a higher electron dose in patterned areas and a lower electron dose in non-patterned areas. Concurrently with the epitaxial growth of crystalline features, the present method includes scanning the substrate to provide information on the size of the crystalline features with atomic resolution. This approach provides for atomic level sculpting of crystalline oxide materials from a metastable amorphous precursor and the liquid phase patterning of nanocrystals.

Bulk nanofabrication with single atomic plane precision via atomic-level sculpting of crystalline oxides

A method for the desalination of water, the method comprising flowing salt water through a free-standing single-layer membrane of nanoporous graphene having a first planar side that makes contact with the salt water and an opposing second planar side from which desalinated water exits, wherein said membrane contains nanopores having a size of up to 1 nm, along with a substantial absence of pores above 1 nm in size, wherein said nanopores up to 1 nm in size have pore edges passivated with silicon, wherein salt ions in said salt water are blocked from passing through said membrane while water in said salt water passes through said membrane to result in desalinated water exiting said membrane.

Nanoporous graphene membrane for desalination of salt water

A lithium ion battery includes a positive electrode comprising carbon fibers, a binder composition with conductive carbon, and a lithium rich composition. The lithium rich composition comprises at least one selected from the group consisting of Li(My MzMw)Owhere x+y+z+w=1, and xLiMnO(1&#x2212;x)LiMO, where x=0.2-0.7, and where M, Mand Mare interchangeably manganese, nickel and cobalt, and LiMMO, where M and Mare manganese and nickel, respectively, with x=0.5. A negative electrode comprises carbon fibers having bound thereto silicon nanoparticles, and a mesophase pitch derived carbon binder between the silicon nanoparticles and the carbon fibers. An electrolyte is interposed between the positive electrode and the negative electrode. Methods of making positive and negative electrodes are also disclosed.

Growing community of inventors

Knoxville, TN, United States of America

Raymond Robert Unocic