Talga Resources reports positive test results on graphene Li-ion batteries

Jun 07, 2017

Talga Resources has provided an update on initial benchmark testing of its graphene in Lithium-ion batteries, manufactured at the Warwick Manufacturing Group’s Energy Innovation Center, University of Warwick UK.

Talga GNP Li-Ion battery anode comparison (June 2017)

Following successful tests of the Company’s micrographite product, Talga announced its intention to move towards testing its graphene nanoplatelets (GNPs) as the active material of Li-ion battery anodes. Preliminary test results are highly encouraging with Talga's material exhibiting outstanding electrochemical performance that reportedly surpasses capacity measures for commercially available graphite anodes, delivering up to ~27% more energy density. The tests also showed low capacity losses (reversible capacity >99.5%) and high stability (coulombic efficiency 99.9%). Talga also reports that the results were achieved using its bulk graphene nanoplatelets, rather than few layered graphene materials (FLG), which raises potential to compete at today’s anode market cost structure.

A graphene-based coating changes color upon deformation warns of cracks in buildings and bridges

Apr 06, 2017

Researchers at the Germany-based Leibniz Institute of Polymer Research have developed a structurally colored coating based on graphene flakes, that changes color depending on deformation of the colored surface. Inspired by natural iridescence in fish skin, this coating could provide a simple way to warn of hidden damage in buildings, bridges and other structures.

The team made the coating in an initial red, but when deformed, it appears yellow, and when cracked at the micrometer scale, green. This color-changing ability comes from a careful alignment of the graphene flakes in semi-transparent, parallel layers, coating a glass fibre. Under stress, the layers compress and flatten, changing the interference and color of reflected light. In fact, by overlapping graphene nanoplatelets (GNPs) with ordered and disordered features using a special deposition approach, unique “fish scale” like structures are achieved. Variable structural coloration is observed through the mechanical tuning of fine parallel multilayers.

XG Sciences secures financing from The Dow Chemical Company

Jan 05, 2017

XG Sciences logoXG Sciences, a supplier of graphene nanoplatelets and value-added products containing graphene nanoplatelets, recently announced that it has closed an agreement with The Dow Chemical Company for up to a $10 million senior credit facility, which may be drawn down in tranches by XGS at its discretion through December 2019.

The company received $2 million under this facility at close and may draw another $3 million at its discretion at any time prior to the first anniversary of the agreement. After the first anniversary of the closing, the company may access the remaining $5 million, provided it has raised at least $10 million of additional equity capital. XG Sciences and Dow agreed to hold commercial discussions including the potential out-license of certain of Dow’s manufacturing IP related to graphene nanoplatelets to XGS.

Versarien enters agreement with Fern Plastic Products to manufacture graphene-enhanced injection moulded products

Dec 20, 2016

Versarien announced an agreement with Fern Plastic Products to manufacture injection moulded products using graphene-enhanced polyaryletherketone (PAEK) materials. The agreement with Fern Plastics follows the agreement with Scafell Organics announced earlier this month.

The plan is for Versarien to utilize Fern Plastics' manufacturing facilities and expertise to produce injection moulded products using graphene-enhanced PAEK materials produced through Versarien's collaboration with Scafell.

Versarien enters agreement with Scalfell Organics to develop graphene-enhanced PAEK materials

Dec 18, 2016

Versarien LogoVersarien, the advanced materials group, has signed an agreement with polymer chemical producer Scafell Organics to develop graphene-enhanced polyaryletherketone materials (PAEKs). These materials are a family of semi-crystalline thermoplastics with high-temperature stability and high mechanical strength, used in the automotive and aerospace industries.

Versarien reportedly plans to utilize Scafell’s facilities and production expertise to produce graphene enhanced PAEK materials using Versarien supplied graphene nano platelets. It is hoped that these graphene enhanced materials will be available for sale by Versarien through its sales team as well as Scafell’s customers.

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