Abstract: Carbon nanostructures are used to prepare electrode compositions for lithium ion batteries. In one example, a cathode for NCM batteries includes three-dimensional carbon nanostructures which are 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 1 weight % relative to the electrode composition.

Abstract: An electrode includes an electrode composition having carbon nanotubes; carbon black particles having a Brunauer-Emmett-Teller (BET) surface area greater than 90 m2/g, and an oil adsorption number (OAN) greater than 150 mL/100 g, wherein the ratio of the carbon nanotubes to the carbon black particles ranges from 3:1 to 0.25:1 by weight; and an electroactive material selected from lithium nickel cobalt manganese oxide or lithium nickel cobalt aluminum oxide; and a current collector contacting the electrode composition. The total concentration of the carbon nanotubes and the carbon black particles is equal to or less than 3 wt % of the electrode composition.

Abstract: 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 Mn+1Xn, where M, X, and n are described in the specification, and devices incorporating these compositions.

Abstract: A high purity lithium metal thin film and a process for controlling the morphology of the high purity lithium metal thin film are provided. In a general embodiment, the present disclosure provides a high purity lithium metal thin film having a controlled thickness and morphology. The high purity lithium metal thin film is produced by electrolytic deposition of lithium using a selective lithium ion conducting layer. The morphology of the lithium metal thin film can be controlled by varying the current rate used for deposition. The present lithium metal films advantageously provide a high purity lithium metal film in which the thickness and/or morphology of the film can be altered depending on the desired application.

Abstract: 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 Mn+1Xn, where M, X, and n are described in the specification, and devices incorporating these compositions.

Abstract: 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.

Abstract: 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.

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

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

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

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

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

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