#electrodes — Public Fediverse posts

How #chemists turned #bourbon waste into #supercapacitors
Hydrothermal carbonization can directly convert #stillage into hard or #ActivatedCarbon. Cossio & Guzman used activated carbon as #electrodes, creating double-layer #capacitors by putting liquid electrolyte between them. Proof-of-concept devices were able to store as much as 48W/kg. Built a hybrid device, with one activated carbon electrode and one hard carbon electrode, stored as much as 25 times the energy per kg
https://arstechnica.com/science/2026/03/how-chemists-turned-bourbon-waste-into-super-capacitors/

#SodiumIonBatteries offer an alternative to tricky #lithium

Oct 26th 2023

Excerpt: "Fortunately, lithium is not the only game in town. As we report this week, a clutch of firms are making batteries based on sodium, lithium’s elemental cousin. Since sodium’s chemical properties are very similar to those of lithium, it too makes for good batteries. And sodium, which is found in the salt in #seawater, is thousands of times more abundant on Earth than lithium and cheaper to get at. Most of the companies using sodium to make batteries today are also Chinese. But pursuing the technology in the West might be a surer route to energy security than relying heavily on lithium.

"Besides its abundance, sodium has other advantages. The best lithium batteries use #cobalt and #nickel in their electrodes. Nickel, like lithium, is in short supply. #Mining it on land is #EnvironmentallyDestructive. Proposals to grab it from the #seabed instead have caused rows. A good deal of the world’s cobalt, meanwhile, is extracted from small mines in the #DemocraticRepublicOfCongo, where #ChildLabour is common and working conditions are dire. Sodium batteries, by contrast, can use #electrodes built from #iron and #manganese [and wood #lignin], which are plentiful and uncontroversial. Since the chemical components are cheap, a scaled-up industry should be able to produce batteries that cost less than their lithium counterparts.

"Sodium is not a perfect replacement for lithium. It is heavier, meaning sodium batteries will weigh more than lithium ones of an equivalent capacity. That is likely to rule them out in some cases where lightness is paramount. But for other applications, such as #GridStorage or #HomeBatteries, weight is irrelevant. Several Chinese carmakers are even beginning to put sodium batteries in #ElectricVehicles."

Read more:
https://www.economist.com/leaders/2023/10/26/sodium-batteries-offer-an-alternative-to-tricky-lithium

Archived version:
https://archive.ph/7x6JX

#SolarPunkSunday #EnergyStorage #SodiumIon #NewTechnology #GiantLeap #Reuse #WasteReuse #NoLithiumMining #NoMining

PLP373_2: Brain Tickles #art #MastoArt #DigitalArt #DigitalPainting #Photoshop #Sketch #SpeedPaint #Portrait #Trippy #EEG #Helmet #Electrodes

An improved existing technology by integrating a flexible, #phosphorescent #polymer layer and transparent #electrodes made from MXene nanomaterial. The result is an #OLED that can be stretched to 1.6 times its original size, while maintaining most of its #luminescence
#Technology #Nanotechnology #MaterialScience #sflorg
https://www.sflorg.com/2026/01/tech01142601.html

The #electrodes can be created on different types of surfaces, which opens up for a new type of #electronics and #medical sensors.
#MaterialScience #Technology #sflorg
https://www.sflorg.com/2025/12/ms12152501.html

The Strange Depression Switch Discovered Deep Inside The Brain https://hackaday.com/2025/11/10/the-strange-depression-switch-discovered-deep-inside-the-brain/ #Parkinson'sdisease #brainstimulation #HackadayColumns #MedicalHacks #depression #electrodes #brain

Muir Vidler: Stereo EEG Self-Portrait, 2023

This was taken after a surgical procedure to implant #electrodes into Vidler’s #brain. The procedure is carried out on people who have #epilepsy that can’t be controlled by medication and is used to identify which area of the brain is causing the seizures, and can determine whether they are eligible for brain surgery. Vidler took this picture on the first day that the electrodes were inserted, and he had to keep them in for seven days

@photography

In an #electrospray thruster, charged particles are pulled directly out of a liquid propellant using a strong electric field and accelerated using charged #electrodes https://spacepropulsion.mit.edu/electric-propulsion

#SpacecraftPropulsion #ElectricPropulsion

Exosuit Muscle Control Steps Closer to Reality
https://spectrum.ieee.org/functional-electrical-stimulation-exosuit-project
#ycombinator #neurotechnology #brain_computer_interface #neuroscience #electrodes #semiconductors #assistive_technology

The #sensor wristband will soon be glued directly to the skin.
#Research groups are already working on e-skins - these are #wearables that fit close to the #body and supply themselves with #energy autonomously. The latest system: a multimodal #health tracker from the #3D printer, called e3-skin (epifluidic elastic electronic skin). In addition to various body sensors and hydrogel-covered #electrodes, it includes a microcapacitor powered by #solar #energy.

https://spectrum.ieee.org/energy-harvesting-wearable-tech

I'm pleased to have John and Gillian back for a while anyway (even if no one else is). Shame that this is the only line of dialogue either of them get... #DoctorWho #Electrodes

How is it that this story isn't better known. The Doctor becomes the manager of a pop sensation and goes with them on their successful planet wide tour. It is completely random but I loved it #DoctorWho #Electrodes

We are introduced to the Electrodes (the Beatles of 2208), Fuzz, Muff, Buzz and the other one. With names like that how would they not be a pop sensation #DoctorWho #Electrodes

Upgraded Plasma Thruster is Smaller, More Powerful - When [Jay Bowles] demoed his first-generation ion thruster on Plasma Channel, the ... - https://hackaday.com/2023/03/30/upgraded-plasma-thruster-is-smaller-more-powerful/ #plasmachannel #highvoltage #ionthruster #electrodes #airflow

Biohybrid Implant Patches Broken Nerves with Stem Cells - Neural interfaces have made great strides in recent years, but still suffer from p... - https://hackaday.com/2023/03/29/biohybrid-implant-patches-broken-nerves-with-stem-cells/ #bioengineering #bioelectrical #medicalhacks #electrodes #prostheses #prosthetic #neurology #biology

Grow Your Own Brain Electrodes - Bioelectronics has been making great strides in recent years, but interfacing rigi... - https://hackaday.com/2023/03/23/grow-your-own-brain-electrodes/ #braincontrolledinterface #bioelectrical #brainimplants #medicalhacks #brainhacks #electrodes #biology #brain #bci

Interesting progress here growing #electrodes in #living #tissue.

Though plenty basic biology and engineering left to do.
https://science.slashdot.org/story/23/02/24/2217219/researchers-have-successfully-grown-electrodes-in-living-tissue

I wrote a blog post about #electrodes in #wearables. https://elitacwearables.com/electrodes-what-are-they-and-what-are-theyused-for/

Royal revendique des attaques informatiques à l'encontre de:

• 🇺🇸 Cadmet, Inc (cadmet.com)

• 🇨🇦 Pillar Resource Services, Inc (pillar.ca)

#usa #canada #industrial #ransomware #facilities #field #gas #pipes #oilfield #software #construction #medical #blueprint #customers #catalog #databreach #careers #surgical #management #employees #royal #safety #suppy #commercial #isc #devices #modularization #equipment #industries #rail #healthcare #electrodes #batteries #doctors #gastroenterology #nurses #systems #contractors #dealers #services #oil #fabrication #ambulatory #clients #bulbs #patients #monitoring #modules #powers #storage #accessories #technologies #market #surgery #business #displays #ultrasound #informatique

As I was one of the speakers, I am happy to share the video of the webinar Electrodes for Wearables by Elitac Wearables. #electrodes #wearabletech #technology #improvinglives
https://elitacwearables.com/webinar-recording-electrodes-for-wearables/

A new technique for directly #printing #electronic #circuits onto curved and corrugated surfaces. The work paves the way for a variety of new soft electronic #technologies, and researchers have used the technique to create prototype “smart” contact #lenses, pressure-sensitive latex gloves, and transparent #electrodes.
#Technology #sflorg
https://www.sflorg.com/2022/11/tn11212202.html