Nanotech Energy is developing the next SUPERbatteryTM!

Graphene SUPERbatteriesTM

Graphene SUPERbattery (GPower-222) is a unique lithium ion battery utilizing graphene to improve on the three major criteria that are used for evaluating the performance of a battery: the power density, energy density and the cycling life. Because of its outstanding surface area and high electronic conductivity, graphene can improve the electrochemical properties of the lithium ion battery anode and cathode simultaneously. As a result, the new graphene-based lithium ion super-battery, called (GPower-222) has the capability of providing twice as much charge as traditional lithium ion batteries. In addition, the excellent electronic conductivity of graphene reduces the cell resistance and therefore results in batteries with higher power density. The last and perhaps the most important feature of the GPower is the cycle life of the battery. It is widely accepted that the major failure mode of a lithium ion battery is the structural degradation of the electrode materials due to ion intercalation during repeated charge and discharge processes. The excellent mechanical properties of graphene can effectively alleviate these volume changes, enabling a new generation of lithium ion batteries with improved the cycling stability.

In order to push the limits of lithium ion batteries, Nanotech Energy has developed groundbreaking nanoscale battery materials having much better performance than the current materials used in commercial batteries. The outstanding properties of these nanostructured electrodes enable a new generation of lithium ion batteries with excellent power density that promises to improve by 3x, exceptionally high energy density (4x) and long cycling life (5x). These features make the new GPower-345 the ultimate solution for portable electronic devices, EVs, grid stabilization and can potentially make solar power more viable.

Graphene SUPERbatteries offer lighter and smaller energy storage solutions

Graphene SUPERbatteries (GPower series) are expected to play an important role in the following areas:

Nanotech SUPER batteries are most applicable to consumer applications in cellphones, computers, cameras, etc.
Because of its high energy density, the GPower is an excellent candidate for implantable devices where long term charge storage is highly required. Other life-enhancing medical devices such as defibrillators, hearing aids, and drug pumps can take advantage of the excellent performance of the GPower.
The GPower can enable EVs with longer range on a single charge.
Nanotech SUPER batteries can be used in space to power space systems including rovers, landers, spacesuits and electronic equipment.
The Military uses special batteries for powering a huge number of electronics and equipment. Of course, reduced mass/volume of Nanotech batteries are highly preferred.
An electric aircraft is one that runs on electric motors rather than internal combustion engines, with electricity coming from solar cells or batteries.
Batteries are widely used to store electrical energy during times when production (from power plants) exceeds consumption and the stored energy is used at times when consumption exceeds production. Of course, the GPower with its high energy batteries would enable smaller modules and lower the cost of charge storage per cycle.
Since the sun does not shine at night and the wind does not blow at all times, batteries have found their way to off-the-grid power systems to store excess electricity from renewable energy sources for use during hours after sunset and when the wind is not blowing. Obviously, the GPower with its high power batteries can harvest energy from solar cells with higher efficiency than the current state-of-the-art batteries.
Nanotech batteries would enable fast-charging cordless power tools such as drills, screwdrivers, saws, wrenches and grinders. The trouble with current batteries is long recharging time.

Graphene and Related Materials

Graphene-2100 has several advantages over graphene products currently available in the market. Experiments show that commercial graphene products are technically few to multilayered graphene platelets produced from the exfoliation of expanded graphite. As such, those products have limited surface area which is a critical parameter for most applications. Without the large surface area, graphene loses most of its superlatives and behaves just like graphite. Using proprietary methods, Nanotech Energy has developed unique process for producing graphene that is truly single layer in nature and demonstrates some of the highest specific surface areas of all graphene commercially available. In addition, Graphene-2100 exhibit additional features such as low oxygen content, high purity, easy processing from both water and organic solvents. These features enable our graphene to be used in a wide range of applications including but not limited to batteries, supercapacitors, sensors, conductive films, transparent conducting electrodes, electronics, functional inks, composites with enhances properties, catalysis, fuel cells, lubricant, anti-corrosion coatings, antistatic coatings, thermoelectric devices, hydrogen storage, water filtration, environmental remediation, RFID antennas and structural materials. We offer graphene in several formulations in order to meet the performance demands of our customers.

The development of water soluble graphene is attractive because of its low cost and capacity to be manufactured with high-throughput techniques. Using proprietary chemical, hydrothermal and photo-thermal methods , Nanotech Energy has pioneered single and few layer graphene that are soluble in water and common solvents. This is advantageous to most graphene products available in the market including graphene/graphite nano-platelets that are only soluble in toxic organic solvents, raising safety and environmental concerns. In addition, the reaction conditions can be adjusted to enable good control over the electrical conductivity and the number of layers of graphene sheets in the final product. For example, reaction conditions may be adjusted to form single-layer single layer graphene or multi-layer graphene. These forms of graphene are ideal for conductive inks, printed electronics, batteries, etc. They can also be utilized to improve the thermal, electrical and mechanical properties of a wide range of materials.

Graphene oxide customized to meet your needs

The first graphene samples were obtained by peeling off a single layer of graphite using a scotch tape. While this process is simple and straightforward, it is not practical for graphene manufacture. Over the past decade, alternative approaches have been developed such as chemical vapor deposition (CVD), liquid phase exfoliation and reduction of graphene oxide. Out of these methods, graphene oxide shows potential for manufacturing due to its hydrophilic nature enabling its processing from water on a large scale. In fact, graphene oxide is currently being explored in several companies and research labs around the world as a precursor to graphene. Nanotech Energy has developed a proprietary process for the preparation of graphite oxide on a large scale Nanotech Energy offers graphene oxide in the powder form, solutions with variable concentrations and as films. Our process demonstrate better control over the carbon/oxygen content and exhibit much higher surface area than any of the GO samples available in the market. In addition to its use as a precursor to graphene, graphene oxide can be used in a variety of applications from surfactants, photonic and optoelectronic devices to water filtration and protective coatings.

Nanotech Energy offers graphene oxide in different formulations that are designed to be customized for every kind of use. Generally, it is widely accepted that the properties of graphene vary depending on the number of layers. This also defines to a large extent the nature of the final application. Here, Nanotech Energy has developed synthetic methods for the precise control of the number of layers of graphene to meet our customers needs. We can also control the oxidation level of graphite oxide which has a direct impact on the chemical and electrochemical properties of GO. Whether you prefer graphene in the powder form, solution or coated films, this request can also be met. Additional parameters we can precisely control are the sheet size, concentration of GO in the dispersion, solution pH, the type of solvent used for making the dispersion and purity level as a function of the carbon content or the ionic conductivity of the GO solution. Nanotech energy has the full capability to meet your requirements. Tell us your specs and will custom the GO for your application.

Other Applications:

Flexible circuits

RFID for product tracking

Electronic paper

Flexible electronics

Similar to conventional printing, printed electronics applies ink onto paper, plastic or other substrates. Because electrical conductors are essential for printed electronic devices, significant efforts have been devoted to the development of functional conductive materials. Graphene and graphene-based materials have superb electronic structure and therefore can provide excellent properties including high chemical and thermal stability as well as outstanding electrical conductivity. Applications includes thin film transistors, transparent conducting electrodes, sensors, RFIDs, etc. Our proprietary graphene inks can also provide high specific surface area, which would be beneficial for printed batteries and supercapacitors.

Thin, flexible, low-cost and environmentally friendly – this is just a snapshot of what printed electronics can offer. The market for printed electronics is rapidly growing with promising applications in smart packaging, organic solar cells, wearable electronics and electronic papers. The rise of this technology can be ascribed to its potential in providing cost-efficient solutions to large-area electronic devices at a fraction of the cost of traditional semiconductor technology.
Given its excellent mechanical and electronic properties, graphene is expected to play a critical role in the progress of printed electronics. Nanotech Energy has developed a simple, yet effective, method for the direct laser writing of graphene circuits that are flexible, conductive and suitable for the next generation of flexible electronics. Devices of any shapes and structures can be printed within minutes.

Supercapacitors are attractive energy storage devices with the ability to recharge in seconds instead of hours for traditional batteries. Supercapacitors are also maintenance free and can be used for up to a million charge/discharge cycles. Their high power density and excellent low temperature performance have made them the technology of choice for back-up power, cold starting, flash cameras, and regenerative braking. They also play an important role in the progress of hybrid and electric vehicles. However, the low energy density of current supercapacitors is the main impediment to realizing the full commercial potential of this technology. This has triggered tremendous research efforts in order to develop new electrode materials that are capable of providing a huge amount of energy in a short period of time. Graphene has garnered attention as a material for the next generation supercapacitors because of its outstanding mechanical, thermal and electrical properties as well as its chemical stability, extremely large surface area and high theoretical specific capacitance of 550 F/g. Nanotech Energy is developing the next generation supercapacitors with outstanding energy density, ultrahigh power density and essentially unlimited cycle life.