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  • Solid-State Batteries, and How They Shape the Future

    Catwell
    Catwell
    (Image Credit: ScienceDirect) Battery technology is advancing, and a new type, solid-state batteries (SSBs), is expected to emerge in the upcoming years. Researchers at the University of California, Riverside, published a review highlighting the po...
    • 20 Aug 2025
  • Retired EV Batteries Could be Reused as Grid Storage to Cut Emissions

    Catwell
    Catwell
    (Image credit: Pexels)  As electric vehicles (EVs) continue to rise in popularity, California is on track to retire millions of EV batteries over the next few decades. So, what happens to all those batteries once they can't power a car? A n...
    • 7 Aug 2025
  • Vortex Bladeless Unveils Bladeless Wind Turbines

    Catwell
    Catwell
    The bladeless wind turbines rely on vortex-induced vibration rather than spinning blades to generate electricity. (Image Credit: Vortex Bladeless) Vortex Bladeless has introduced an innovative renewable energy solution: bladeless wind turbines. Inst...
    • 29 Jul 2025
  • Aliaro’s Battery Cell Simulator Increases EV Efficiency and Range

    Catwell
    Catwell
    (Image credit: Aliaro) Swedish firm Aliaro is sparking innovation with its Battery Cell Simulator (BCS), which provides engineers with a new tool for optimizing EV and eVTOL battery systems, without requiring an actual battery. The BCS accurately si...
    • 18 Jul 2025
  • Japan and Indonesia Launch a $500 Million Initiative to Expand Geothermal Capacity

    Catwell
    Catwell
    (Image Credit: WikiImages/pixabay) Indonesia and Japan have launched a $500 million initiative to add a second unit to the geothermal facility in West Sumatra, expanding capacity at the Muara Laboh site. Former Japanese Prime Minister Fumio Kishida ...
    • 17 Jul 2025
  • Japan Wirelessly Transmits Power from the Air to the Ground

    Catwell
    Catwell
    Flying 3.1 miles above the ground at 700km/hr, the jet transmitted power to ground-based antennae. (Image Credit: Japan Space Systems) Japan Space Systems (JSS) successfully achieved a breakthrough: wirelessly transmitting power from an in-flight je...
    • 15 Jul 2025
  • OrangePi Power write up

    obones
    obones
    Last year, I asked a question on how to best maintain power long enough to allow my 3D Printer SBC to power off properly: /technologies/power-management/f/forum/54285/maintain-power-long-enough-for-sbc-to-power-down The easiest solution was simply to...
    • 12 Jul 2025
  • The State of Solar Power in 2025

    Catwell
    Catwell
    Global solar power is growing by the day. (Image Credit: Bru-n0/pixabay) Solar power is growing at a rapid pace that humanity hasn't seen before. For instance, global solar grew tenfold over the last ten years, which saw installations doubling...
    • 10 Jul 2025
  • 6K6 Tube Amp

    dang74
    dang74
    It feels funny posting about tubes on a site called element14.  After all silicon was the great disrupter that pushed vacuum tubes to the sidelines.  Setting all that aside I know the e14 community will welcome this blog... but it still beg...
    • 6 Jul 2025
  • At 12 Years Old, Jackson Oswalt Built a Fusion Reactor in His Bedroom

    Catwell
    Catwell
    Jackson Oswalt and his fusion reactor that he built in his bedroom at 12 years old. (Image Credit: Guinness World Records) Like something out of a sitcom or movie. Every kid dreams big, and some turn those dreams into reality. In 2018, 12-year-old J...
    • 2 Jul 2025
  • The United States Delivered the (Big) Central Solenoid to France

    Catwell
    Catwell
    The US recently delivered the central solenoid to the ITER site in France. (Image Credit: General Atomics) The ITER project, an international partnership, is getting closer to achieving nuclear fusion, an effort that involves the replication of the ...
    • 13 Jun 2025
  • Arcela Unveils Machine That Turns the Air into Gasoline

    Catwell
    Catwell
    Aircela demonstrated its compact machine that turns CO2 into gasoline for vehicle use. (Image Credit: Aircela) New York-based fuels company Aircela built a compact machine capable of collecting carbon dioxide, converting it into clean, usable gasoli...
    • 11 Jun 2025
  • AI Discovers a Large Lithium Deposit Beneath Arkansas

    Catwell
    Catwell
    Map showing highlighted areas of the Smackover Formation and the sampling area. (Image Credit: USGS) The USGS used water testing and machine learning to discover approximately 5 to 19 million tons of lithium beneath southwestern Arkansas from the Sm...
    • 3 Jun 2025
  • China’s Survey Estimates That a One-Million-Ton Deposit of Thorium Could Produce Limitless Energy

    Catwell
    Catwell
    An experimental thorium-based nuclear reactor at Oak Ridge National Laboratory in the 1960s. (Image Credit: Oak Ridge National Laboratory/US DOE) In 2020, China conducted a national geological survey in 233 thorium-rich zones across the nation, find...
    • 30 May 2025
  • CalTech Progresses with Making The Mini Lightsail a Reality

    Catwell
    Catwell
    Artist's concept of a lightsail propelled by a laser and blasting off through space. (Image Credit: Credit: Breakthrough Starshot / Breakthrough Initiatives) The Breakthrough Starshot Initiative isn't a new concept. Introduced by Stephen H...
    • 19 Mar 2025
  • Building a 4 x AA Battery Pack Charger for Nickel-Metal Hydride (Ni-MH) Cells

    shabaz
    shabaz
    Table of Contents Introduction Circuit Current Limit Voltage Limit Building and Testing the Charger Summary Disclaimer Introduction Modern Nickel-Metal Hydride (Ni-MH) cells pack a lot of power, are low-cost, easily available, and are relativ...
    • 12 Feb 2025
  • 3D-Printed Fungi Battery Consumes Sugar to Power Temperature Sensors

    Catwell
    Catwell
    Empa’s 3D-printed biodegradable fungal battery can supply power to temperature sensors for days. (Image Credit: Empa) Researchers at Empa’s Cellulose and Wood Materials laboratory developed a 3D-printed fungal battery that doesn’t ...
    • 7 Feb 2025
  • China’s East Fusion Reactor Breaks a New Record

    Catwell
    Catwell
    China's EAST fusion reactor achieved a steady state high-confinement plasma operation for 1,066 seconds. (Image Credit: HFIPS) Humanity is inching closer to an artificial sun, unlocking breakthroughs along the way. For the first time, rese...
    • 28 Jan 2025
  • Building a Smart Electronic Load | DAC and Initial Firmware (#2)

    Attila Tőkés
    Attila Tőkés
    Hi E14 Community!  Quick update on the Smart Electronic Load project:    Previous blog posts: Building a Smart Electronic Load | Introduction (#1)    I started testing the stages of the load one-by-one, startin...
    • 8 Jan 2025
  • Researchers Develop Carbon-14 Battery That Could Outlive Humans

    Catwell
    Catwell
    Sample of a diamond battery. (Image Credit: University of Bristol) Engineers at the University of Bristol developed the world's first nuclear-powered battery, which they claim can generate electricity via the reaction of a radioactive isotope pl...
    • 8 Jan 2025
  • LabView process to measure DC:DC converter efficiency

    Jan Cumps
    Jan Cumps
    I'm evaluating a Vishay microBRICK switch mode converter. The converter is Vishay's  Reference Design for a 4.5 V to 60 V Input, 6 A, DC/DC Synchronous Buck Module SIC967 . One of my lab tests is to validate efficiency sp...
    • 4 Jan 2025
  • DC-DC Converters Take Advantage of the Latest Transformer Tech for Next-Gen Applications

    Catwell
    Catwell
    (Image credit: Bourns) Isolated DC-DC converters are electronic circuits or electromechanical devices that convert electrical energy from one DC voltage level to another while being electrically isolated between the input and output. That isolation...
    • 31 Dec 2024
  • Building a Smart Electronic Load | Introduction (#1)

    Attila Tőkés
    Attila Tőkés
    It happens that I had a couple of LGA775 coolers laying around from an old PC. The PC these cooler belonged to was discarded a long time ago, but I kept the coolers to be used in future power electronic projects. Back in November I decided to tr...
    • 30 Dec 2024
  • Researchers Develop Triboelectric Generator for Wearables

    Catwell
    Catwell
    The created the GPE-TENG by sandwiching a gel electrode between two triboelectric ecoflex layers. (Image Credit: Dongguk University-Seoul) We're seeing a growing demand for wearables, like medical sensors, trackers, and smartwatches, and these r...
    • 12 Dec 2024
  • Building a Nickel-Metal Hydride (NiMH) Charger

    shabaz
    shabaz
    Table of Contents Introduction Charging Principle and Features Circuit Description A Worked Example: 4 x AA Cells Building It Tests Summary Introduction There was a recent discussion regarding thoughts on a circuit for charging NiMH batteries. I...
    • 22 Nov 2024
>
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