Archive for the ‘energy’ category

Jul 18, 2024

Elastic Horizons: The Science Behind 5000% Stretchable Lithium-Ion Batteries

Posted by in categories: energy, health, science, wearables

A newly developed stretchable lithium-ion battery retains efficient charge storage after 70 cycles and expands up to 5000%. This innovation caters to the growing demand for batteries in wearable electronics, ensuring flexibility and durability.

When you think of a battery, you probably don’t think of something stretchy. However, batteries will need this shape-shifting quality to be incorporated into flexible electronics, which are gaining traction for wearable health monitors. Now, researchers in ACS Energy Letters report a lithium-ion battery with entirely stretchable components, including an electrolyte layer that can expand by 5000%, and it retains its charge storage capacity after nearly 70 charge/discharge cycles.

Advancements in Flexible Electronics.

Jul 17, 2024

First health care device powered by body heat made possible by liquid based metals

Posted by in categories: bioengineering, energy, health, wearables

In the age of technology everywhere, we are all too familiar with the inconvenience of a dead battery. But for those relying on a wearable health care device to monitor glucose, reduce tremors, or even track heart function, taking time to recharge can pose a big risk.

For the first time, researchers in Carnegie Mellon University’s Department of Mechanical Engineering have shown that a health care device can be powered using alone. By combining a pulse oximetry sensor with a flexible, stretchable, wearable thermoelectric energy generator composed of , semiconductors, and 3D printed rubber, the team has introduced a promising way to address battery life concerns.

“This is the first step towards battery-free wearable electronics,” said Mason Zadan, Ph.D. candidate and first author of the research published in Advanced Functional Materials.

Jul 17, 2024

Revolutionizing H2O2 Production: Ultrathin Nanosheets Show Immense Promise

Posted by in categories: chemistry, energy

Recent research has demonstrated the effectiveness of ultrathin Bi4O5Br2 nanosheets with controlled oxygen vacancies in enhancing the piezocatalytic production of hydrogen peroxide (H2O2), presenting a viable, environmentally friendly alternative to traditional methods.

Hydrogen peroxide (H2O2) serves as a crucial chemical raw material with extensive applications in numerous industrial and everyday contexts. However, the industrial anthraquinone method of producing H2O2 is fraught with significant drawbacks, including high levels of pollution and energy consumption. An alternative approach involves harnessing ubiquitous mechanical energy for piezocatalytic H2O2 evolution, which offers a promising strategy. Despite its potential, this method faces challenges due to its unsatisfactory energy conversion efficiency.

Bi4O5Br2 is regarded as a highly attractive photocatalytic material due to its unique sandwich structure, excellent chemical stability, good visible light capture ability, and suitable band structure. Aspired by its non-centrosymmetric crystal structure, piezoelectric performance has begun to enter the vision of researchers recently. However, its potential as an efficient piezocatalyst is far from being exploited, especially since the impacts of defects on piezocatalysis and piezocatalytic H2O2 production over Bi4O5Br2 remains scanty. Thus, mechanical energy-driven piezocatalysis provides a promising method for H2O2 synthesis from pure water with great attraction.

Jul 15, 2024

Tesla’s Megapack Technology Selected for Australia’s Largest Four-Hour Battery Storage System

Posted by in categories: energy, finance, sustainability

Tesla Energy secured a $375 million Megapack contract in Australia. The new Tesla Megapack contract will help build a 415 MW/1660 MWh battery Down Under, one of the largest four-hour batteries in the world.

Tesla Energy will supply Megapacks to Akaysha Energy’s Orana Battery Energy Storage System (BESS). The Orana project is located in New South Wales within Central West Orana’s Renewable Energy Zone (REZ).

We are very pleased to announce the successful closing of the debt financing of the Orana project as we move into construction on Akaysha’s first four-hour BESS to date. As the largest standalone BESS financing globally, this achievement not only secures the capital for Orana’s construction but also highlights the strong support we have received from both local and international banks, as well as from BlackRock. Their commitment to advancing the energy transition in Australia and internationally has been pivotal to reaching this milestone.

Jul 14, 2024

Levitate a Magnet with Bismuth Crystals — No Energy Cost, Indefinite Levitation — NightHawkInLight

Posted by in category: energy

How to levitate a magnet with no batteries, external power, or trickery. It floats on pure SCIENCE!Below are some links you can use to purchase bismuth and…

Jul 14, 2024

Google and Microsoft consume more power than some countries

Posted by in categories: energy, sustainability

In 2023, Google and Microsoft each consumed 24 TWh of electricity, surpassing the consumption of over 100 nations, including places like Iceland, Ghana, and Tunisia, according to an analysis by Michael Thomas. While massive energy usage means a substantial environmental impact for these tech giants, it should be noted that Google and Microsoft also generate more money than many countries. Furthermore, companies like Intel, Google, and Microsoft lead renewable energy adoption within the industry.

Detailed analysis reveals that Google’s and Microsoft’s electricity consumption — 24 TWh in 2023 — equals the power consumption of Azerbaijan (a nation of 10.14 million) and is higher than that of several other countries. For instance, Iceland, Ghana, the Dominican Republic, and Tunisia each consumed 19 TWh, while Jordan consumed 20 TWh. Of course, some countries consume more power than Google and Microsoft. For example, Slovakia, a country with 5.4 million inhabitants, consumes 26 TWh.

Jul 14, 2024

Houston swelters in punishing heat as 800,000 without power after Beryl

Posted by in category: energy

Residents suffer sleepless nights without air-conditioning as energy company blames fallen trees for outages.

Jul 13, 2024

Northrop Grumman Builds XRQ-73 SHEPARD Hybrid Electric Uncrewed X-Plane for DARPA

Posted by in categories: energy, military

Northrop Grumman Corporation (NYSE: NOC) has announced the design and construction of the Series Hybrid Electric Propulsion AiRcraft Demonstration (SHEPARD) vehicle. The uncrewed air system developed for DARPA recently received its official X-plane designation of XRQ-73. Built in collaboration with Scaled Composites, a Northrop Grumman subsidiary, the XRQ-73 SHEPARD is a DARPA “X-prime” program leveraging hybrid electric architecture and component technologies to quickly mature a new mission-focused aircraft design with propulsion architecture and power class for the Department of Defense.

“The idea behind a DARPA X-prime program is to take emerging technologies and burn down system-level integration risks to quickly mature a new missionized long endurance aircraft design that can be fielded quickly. The SHEPARD program is maturing a specific propulsion architecture and power class as an exemplar of potential benefits for the Department of Defense,” said Steve Komadina, SHEPARD program manager.

The DARPA team includes members from the Air Force Research Laboratory (AFRL), the Office of Naval Research (ONR), and warfighters. The prime contractor for SHEPARD is Northrop Grumman Corporation’s Aeronautics Systems sector in Redondo Beach, CA. Scaled Composites, LLC is a major supplier, along with Cornerstone Research Group, Inc., Brayton Energy, LLC, PC Krause and Associates, and EaglePicher Technologies, LLC. The XRQ-73 aircraft hybrid-electric uncrewed aircraft system (UAS) will be a Group 3 UAS weighing approximately 1,250 pounds. First flight of the XRQ-73 is expected by year-end 2024.

Jul 13, 2024

US Army Selects RCADE to Solve Highly Complex Problems Across Domains

Posted by in categories: business, energy

Raytheon, an RTX (NYSE: RTX) business, has been awarded a contract from the U.S. Army Futures Command (AFC) Futures and Concepts Center (FCC) to conduct theater level concept experimentation and mission analysis to support agile learning of the future battlefield. Under the contract, a Raytheon team will use its Rapid Campaign Analysis and Demonstration Environment, known as RCADE, to develop large-scale theater scenarios to help FCC leaders assess concepts of operations in a multi-domain conflict. Quantitative data and findings from the scenarios will help identify capabilities needed to succeed in future conflicts.

RCADE is part of Raytheon’s integrated ecosystem of modeling and simulation capabilities that are fed by real-world analytics, models, and data. It creates an experimentation environment where customers can explore battlefield scenarios, assess how different variables impact mission outcomes and quickly iterate their options with greater speed. In tandem with RCADE, the technical expertise provided by Raytheon engineers will complement the U.S. Army’s analysis enterprise. They will work together to meet the challenge of the future and solve complex evolving threats.

“RCADE helps our customers look at some of the most difficult missions and evaluate how to change the outcome for the positive. Our team of highly trained experts power this groundbreaking capability, enabling it to deliver credible, unbiased solutions,” said Colin Whelan, president of Advanced Technology at Raytheon.

Jul 12, 2024

China: Quantum tech cracks subatomic code, beats supercomputers

Posted by in categories: energy, quantum physics, supercomputing

A Chinese research team has achieved a significant milestone in quantum computing by successfully building a device that can simulate the movement of electrons within a solid-state material.

This research, published in the journal Nature, showcases the potential of quantum computers to surpass even the most powerful supercomputers.

Understanding electron behavior is crucial for scientific advancements, particularly in the fields of magnetism and high-temperature superconducting materials. These materials could revolutionize electricity transmission and transportation, leading to significant energy savings and technological progress.

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