#supercapacitors

Leather gets a power upgrade with laser-written microsupercapacitors

Researchers have developed a simple and eco-friendly way to use a laser to turn natural leather into flexible and wearable energy devices. The new approach could lay the groundwork for more sustainable wearable electronics. In a paper in Optics Letters, the researchers demonstrate the new technique by creating microsupercapacitors on leather in various patterns, including a tiger, dragon and rabbit. "Using a laser, we directly write conductive patterns onto vegetable-tanned leather to create microsupercapacitors that can store energy and help smooth electrical signals so that wearable electronics run more reliably," said the research team leader Dong-Dong Han from Jilin University in China.

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Flexible Batteries Power the Future of Wearable Technology

The rapid development of wearable technology has received another boost from a new development using graphene for printed electronic devices.

New research from The University of Manchester has demonstrated flexible battery-like devices printed directly on to textiles using a simple screen-printing technique.

The current hurdle with wearable technologyis how to power devices without the need for…

A new company Tenka Energy, LLC ™ has been formed to exploit and commercialize the Next Generation Super-Capacitors and Batteries. The opportunity is based on Nanoporous-Nickel Flexible Thin-Form, Scalable Super Capacitors and Si-Nanowire Battery Technologies with Exclusive IP Licensing Rights from Rice University. Discovered and developed by Dr. James M. Tour, PhD – named “One of the Fifty (50) most influential scientists in the World today” is the patent holder and early stage developer. Tenka’s Senior Science & Business Teams have over 120+ Years combined experience in relevant areas of expertise.

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Problem 1: Current capacitors and batteries being supplied to the relevant markets lack the sustainable power density, discharge and recharge cycle and warranty life. Combined with a weight/ size challenge and the lack of a ‘flexible form factor’, existing solutions lack the ability to scale and manufacture at Low Cost, to satisfy the identified industries’ need for solutions that provide commercial viability & performance.

Solution I: (Minimal Value Product) Tenka is currently providing full, functional Super Capacitor prototypes to an initial customer in the Digital Powered Smart Card industry.

        Solution II: For Marine & Drone Batteries – Medical Devices

High Energy Density = 2X More Time on the Water; 2X Flight Time for Drones

Simplified Manufacturing = Lower Costs

Simple Electrode Architecture = Flex Form Factor (10X Energy Density Factor)

Flexible Form = Dramatically Less Weight and Better Weight Distribution

Easy to Scale Technology

    “We are building and Energy   Storage Company starting Small & Growing Big!”

Argon ion treatment increases carbon nanowall electrode capacitance fivefold

Researchers from Skoltech, MIPT, and the RAS Institute of Nanotechnology of Microelectronics have achieved a five-fold increase in the capacitance of carbon nanowalls, a material used in the electrodes of supercapacitors. These are auxiliary energy storage devices used in conjunction with conventional accumulators in electric cars, trains, port cranes, and other systems. A key characteristic of these devices, the capacitance of carbon nanowalls could be enhanced by treatment with an optimal dose of high-energy argon ions. The research is published in Scientific Reports. How supercapacitors differ from batteries Unlike conventional energy storage, such as lithium-ion batteries, supercapacitors can accumulate or release energy almost instantaneously, making them perfect for delivering quick bursts of power. When a car moves from standstill, a machine lifts a massive weight, or there is a sudden surge in demand on the power grid. When extra energy is dissipated, as in electric train braking, a supercapacitor can capture it for future use.

Nitrogen and argon plasma boosts performance of carbon-based supercapacitor electrodes

Scientists from Skoltech, the Institute of Nanotechnology of Microelectronics, RAS, and other research centers have refined the understanding of how plasma treatment of carbon-based electrodes affects the key characteristics of supercapacitors. These are energy storage devices that complement batteries in electric cars, trains, port cranes, and elsewhere. As scientists investigate the effects of various electrode modifications on capacitance, the toolkit for enhancing supercapacitor performance will expand and these devices will store more energy and find more applications. The findings are reported in Electrochimica Acta. "Our team is investigating ways to improve the performance of devices known as supercapacitors by tinkering with the carbon-based material used in their electrodes," the principal investigator of the study, Assistant Professor Stanislav Evlashin of Skoltech Materials, commented.

Metal-free supercapacitor stack delivers 200 volts from just 3.8 cm³

Researchers at Guangdong University of Technology have developed a new method to build powerful, compact energy storage devices—called thin-film supercapacitors (TFSCs)—without using metal parts or traditional separators. Their tiny 3.8 cm³ device is even capable of outputting 200 volts—enough to light 100 LEDs for 30 seconds or a 3-watt bulb for 7 seconds. The method, detailed in an article published in the International Journal of Extreme Manufacturing, could help power next-generation microelectronic devices, especially those used in harsh or space-constrained environments. At the heart of the technology is a simple but effective laser process. The researchers used a CO₂ laser to transform sheets of commercial polyimide (PI) paper into 3D graphene—an excellent material for storing and conducting electricity. This graphene paper plays multiple roles: it acts as the energy-storing electrode, the electrical connector, and the structural support, all at once.

Tree gum can sustainably supercharge supercapacitor lifespan

A waste gum produced by trees found in India could be the key to unlocking a new generation of better-performing, more eco-friendly supercapacitors, researchers say. Scientists from universities in Scotland, South Korea and India are behind the development, which harnesses the unique properties of the otherwise useless tree gum to prevent supercapacitors from degrading over tens of thousands of charging cycles. The team's finding could help reduce the environmental impact of supercapacitors, an energy storage technology which carry less overall power than conventional batteries but charge and discharge much more quickly.