Other

Voltaxplore Inc

Xu, Luzhu

Pope, Michael A.

Zhang, Yefeng

Michael A Pope

Ilhan A Aksay

Soroush Nazarpour

Daniel Martin Dabbs

Yefeng Zhang

Debasis Ghosh

Xu Luzhu

Yu Zhong

Luzhu Xu

A nanocomposite includes one or more graphene-based materials (GMs), a nitrogen-containing polymer (an N-polymer), and elemental sulfur (S). The nanocomposite is suitable for use as a stable, high capacity electrode for rechargeable batteries such as lithium-sulfur (Li&#x2014;S) batteries. Example methods of fabricating a nanocomposite include the addition of an N-polymer to a dispersion (e.g., an aqueous dispersion) or slurry of GMs mixed with a sulfur sol. The N-polymer can interact strongly with the GMs to form a cross-linked network. In one embodiment, hydrothermal treatment of the aqueous dispersion or slurry is used to melt the sulfur such that it becomes distributed within the network formed by the GMs and the N-polymer. The resulting nanocomposite material can then be processed through the addition of one or more other binders and/or solvents, and formed into a final electrode.

Graphene-polymer porous scaffold for stable lithium-sulfur batteries

The disclosure is directed at a large-area monolayer of solvent dispersed nanomaterials and method of producing same. The method of the disclosure includes dripping a nanomaterial solvent into a container filled with water whereby the nanomaterial being dripped collects at the air-water interface to produce the large-area monolayer. In one embodiment, different nanomaterial solvents can be dripped, at predetermined intervals such that the resulting large-area monolayer includes at least two different nanomaterials.

Method and apparatus for producing large-area monolayer films of solution dispersed nanomaterials

Embodiments of the present invention relate to battery electrodes incorporating composites of graphene and selenium-sulfur compounds for improved rechargeable batteries. In one embodiment, a conductive composition comprises a conductive composition having a Se&#x2014;S compound, a conductive additive. The Se&#x2014;S compound is present as SeS, wherein 0&#x3c;x&#x3c;8.

Electrodes incorporating composites of graphene and selenium-sulfur compounds for improved rechargeable lithium batteries

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Kitchener, Canada

Michael A Pope