Drexel University

Ut-battelle, Inc.

Michael Naguib Abdelmalak

Yury Gogotsi

Michel W Barsoum

Olha Mashtalir

Nancy Johnston Dudney

Jianlin Li

Hsin Wang

Srikanth Allu

Srdjan Simunovic

Tomonori Saito

Jagjit Nanda

Pengfei Cao

Andrew S Westover

Andrew K Kercher

A solid ionically conductive composition (e.g., nanoparticles of less than 1 micron or a continuous film) comprising at least one element selected from alkali metal, alkaline earth metal, aluminum, zinc, copper, and silver in combination with at least two elements selected from oxygen, sulfur, silicon, phosphorus, nitrogen, boron, gallium, indium, tin, germanium, arsenic, antimony, bismuth, transition metals, and lanthanides. Also described is a battery comprising an anode, a cathode, and a solid electrolyte (corresponding to the above ionically conductive composition) in contact with or as part of the anode and/or cathode. Further described is a thermal (e.g., plasma-based) method of producing the ionically conductive composition. Further described is a method for using an additive manufacturing (AM) process to produce an object constructed of the ionically conductive composition by use of particles of the ionically conductive composition as a feed material in the AM process.

Ionically conductive powders and films, and methods of preparation

A graft copolymer composition comprising the following structure: wherein: Arepresents a polymer backbone having a number of polymerized monomer units x; [B] represents a multiplicity of a graft polymer side chain having a number of polymerized monomer units y, and at least a portion of the monomer units in Bcontains a group &#x2014;C(O)OM, with M independently selected from H and alkali metals; [C] represents a multiplicity of positions on the polymer backbone Awhere the graft polymer side chain B or any other graft polymer side chain is not attached; the subscript w represents a grafting density of the group B, wherein w is an integer within a range of 10-50%; and the subscript z represents a density of the group C, wherein z=(100&#x2212;w) %. The invention is also directed to lithium-ion batteries in which the above-described composition is incorporated in an anode of the battery.

Block graft copolymer binders and their use in silicon-containing anodes of lithium-ion batteries

A battery electrode assembly includes a current collector with conduction barrier regions having a conductive state in which electrical conductivity through the conduction barrier region is permitted, and a safety state in which electrical conductivity through the conduction barrier regions is reduced. The conduction barrier regions change from the conductive state to the safety state when the current collector receives a short-threatening event. An electrode material can be connected to the current collector. The conduction barrier regions can define electrical isolation subregions. A battery is also disclosed, and methods for making the electrode assembly, methods for making a battery, and methods for operating a battery.

Current collectors for improved safety

The present invention is directed to compositions comprising at least one layer or at least two layers, each layer comprising a substantially two-dimensional array of crystal cells, having first and second surfaces, each crystal cell having the empirical formula of MX, where M, X, and n are described in the specification, and devices incorporating these compositions.

Compositions comprising free-standing two-dimensional nanocrystals

The present invention is directed to methods of transferring urea from an aqueous solution comprising urea to a MXene composition, the method comprising contacting the aqueous solution comprising urea with the MXene composition for a time sufficient to form an intercalated MXene composition comprising urea.

The present invention is directed to compositions comprising free standing and stacked assemblies of two dimensional crystalline solids, useful for physical and electrochemical applications.

The present invention is directed to compositions comprising free standing and stacked assemblies of two dimensional crystalline solids, and methods of making the same.

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Knoxville, TN, United States of America

Michael Naguib Abdelmalak