Graphene applications: what is graphene used for? - Page 20

Graphite One, a mining company planning a complete domestic U.S. supply chain for advanced graphite materials, has announced that it has received a US$4.7 million contract from the U.S. Department of Defense's Defense Logistics Agency ("DLA") to develop a graphite and graphene-based foam fire suppressant as an alternative to incumbent PFAS fire-suppressant materials, as required by U.S. law.

"Graphite One is pleased to begin work on this Defense Logistics Agency project, which responds to the legally-mandated requirement to develop a new alternative to long-standing foam fire suppressants which are known to have toxic impacts on human health and the environment," said Anthony Huston, President and CEO of Graphite One. "This DLA contract underscores the importance of graphite for innovative technology applications beyond the renewable energy markets – an important part of Graphite One's advanced graphite materials strategy."

Researchers at the University of Texas at El Paso (UTEP) have developed a highly magnetic quantum computing material — 100 times more magnetic than pure iron — that functions at room temperature. The team introduced an aminoferrocene-based graphene system with room temperature superparamagnetic behavior in the long-range magnetic order.

Quantum computing has the potential to revolutionize the world, allowing massive health and science computation problems to be solved exponentially faster than by classic computing. However, before this could happen, it is vital to overcome the current drawback of only operating in subzero temperatures. “In order to make quantum computers work, we cannot use them at room temperature,” said Ahmed El-Gendy, Ph.D., an associate professor of physics at The University of Texas at El Paso. “That means we will need to cool the computers and cool all the materials, which is very expensive.”

Graphene Manufacturing Group (GMG) has announced it has developed graphene aluminum ion (G+AI) battery prototype pouch cells with a storage capacity of more than 500 milliampere hours (mAh) and a nominal voltage of about 2 volts.

GMG sees this as a significant development because it demonstrates how it has matured its battery electro-chemistry and assembly techniques to produce pouch cells with more than 10 layers of graphene-coated cathode and aluminum foil anode. The next step is for the company to optimize the assembly techniques of the pouch cell prototypes to achieve repeatable storage capacity of more than 500 mAh cells for the purpose of conducting a variety of standard testing conditions for comparison purposes.

BASF, a global battery materials producer, and Nanotech Energy, a developer of graphene-based energy storage products, have agreed to partner to significantly reduce the CO₂ footprint of Nanotech’s lithium-ion batteries for the North American market. The agreement aims to close the loop for lithium-ion batteries in North America, with BASF producing cathode active materials from recycled metals in Battle Creek, Michigan, for the usage in lithium-ion battery cells produced by Nanotech Energy. Feeding recycled metals into the production of new lithium-ion batteries can reportedly reduce the CO₂ impact of batteries by about 25% compared to the use of primary metals from mines.

Both companies will additionally partner with American Battery Technology Company (ABTC), a lithium-ion battery recycling company in Reno, Nevada, and TODA Advanced Materials Inc. (TODA) with decades of experience in manufacturing specialized pCAM (precursor for Cathode Active Material) and metal hydroxide material located in Ontario, Canada, to establish such a localized battery value chain for the North American consumer electronics and automotive industries. Along that chain, battery scrap and off-spec material from Nanotech’s pilot operation in Chico, California, as well as from its planned commercial facility will be recycled by ABTC. The battery-grade metals as recovered by ABTC – such as nickel, cobalt, manganese, and lithium – will be subsequently used by TODA and BASF to produce new precursors and cathode active materials, respectively. Nanotech will then use these materials again in its battery cell production – overall, a truly circular economy in North America.

Directa Plus has announced that Setcar SA, its environmental services subsidiary, has signed a three-year contract with Liberty Galati, the largest integrated steel producer in Romania, to process oily mills sludge.

The contract will last for three years and has a total value of €5.5 million, with the potential for further expansion up to a total of €8.0 million. Under the terms of the agreement, Setcar will provide solutions for the treatment of oily mills scale produced in the manufacturing of steel.

Directa said the contract would enable Setcar to expand further its waste treatment and disposal services for industrial pollutants and broaden the range of applications for the group’s Grafysorber technology. By using Grafysorber, Setcar would allow Liberty Galati to recycle a considerable amount of oily sludge waste, transforming it into a raw material suitable for reuse in steel production.

NanoXplore and its wholly owned subsidiary, VoltaXplore, a silicon-graphene-enhanced Li-ion battery manufacturer for the Electric Vehicle and grid storage markets, have announced that VoltaXplore has agreed on commercial terms for the supply of Li-ion battery cells with a well-known commercial vehicle OEM. 

The batteries include graphene in the anode (graphene-silicon additives) and battery cells will reportedly be produced in VoltaXplore’s gigafactory starting from 2026. The agreement is for 1 GWh per year for a duration of 10 years following a pricing formula that passes through raw material cost to the customer.

Researchers from the University of Surrey have developed a new thermo-active road solution that could help prevent potholes caused by freezing and thawing in the winter. A new project that will test this new approach has been awarded a £800,000 research fellowship from the Royal Academy of Engineering. The outcomes could improve how major roads across the United Kingdom are maintained and upgraded, even as climate change increases the challenge of keeping them fit for purpose.  

As part of this five-year research project, the Surrey team will work with advanced materials engineering company Versarien to develop a new graphene-enhanced microcapsule to dig into the soil beneath the surface when roads are resurfaced to improve heat conduction and storage.

Nanotech Energy, Soteria Battery Innovation Group, and Voltaplex Energy will be working together to address safety concerns related to e-bike batteries. The partnership aims to commercialize U.S produced non-flammable graphene-enhanced lithium-ion battery packs by early 2024.

As part of the production process, Nanotech Energy will combine Soteria’s metallized polymer current collectors with their own electrolyte and proprietary electrodes to create high energy, ultra-safe 18650 cells. These cells will initially be manufactured at Nanotech Energy’s facility in Chico, CA, with plans to expand production capacity in the US and Europe. Voltaplex Energy will then utilize these cells to develop battery packs specifically designed for the e-bike, robotics, medical, and military markets. Expansion into other small device markets is also anticipated.

A team of researchers, led by the University of Wisconsin-Milwaukee, recently developed a path to mass-manufacture high-performance graphene sensors that can detect heavy metals and bacteria in flowing tap water. This advance could bring down the cost of such sensors to just US $1 each, allowing people to test their drinking water for toxins at home.

The sensors have to be extraordinarily sensitive to catch the minute concentrations of toxins that can cause harm. For example, the U.S. Food and Drug Administration states that bottled water must have a lead concentration of no more than 5 parts per billion. Today, detecting parts-per-billion or even parts-per-trillion concentrations of heavy metals, bacteria, and other toxins is only possible by analyzing water samples in the laboratory, says Junhong Chen, a professor of molecular engineering at the University of Chicago and the lead water strategist at Argonne National Laboratory. But his group has developed a sensor with a graphene field-effect transistor (FET) that can detect toxins at those low levels within seconds.

Graphene Manufacturing Group (GMG) has announced that it has commissioned its graphene-enhanced coating blending plant and it is now operational after making its first 1,000-liter blend.

Updating investors on the commercialization progress and sales development of THERMAL-XR, the Company said the blending plant is expected to have the capacity to produce up to 500,000 liters of THERMAL-XR RESTORE coating a year, subject to graphene production, when operating two blends per eight-hour shift, 250 days per year. This capacity enables future service growth well into the future, it added.