MAROKO133 Breaking ai: Scientists use ‘radical’ material to create next-gen battery with 1

📌 MAROKO133 Update ai: Scientists use ‘radical’ material to create next-gen batter

A new material can boost the performance of lithium-sulfur (Li-S) batteries.

Helmholtz-Zentrum Berlin and the Technical University of Berlin developed the material based on a porous polymer structure called a radical-cationic covalent organic framework (COF).

The study describes COF as a new “crystalline organic polymer” type with key features like high porosity, customizable structure, low density, and chemical stability. 

Interestingly, the new material improved the battery performance by lasting over 1,500 cycles.

If adopted, it could enhance the capacity and stability of the next-generation lithium-sulfur batteries. 

Material’s structure

Lithium-sulfur batteries are promising because of their high energy capacity, and may succeed lithium-ion cells in the future. 

These batteries are a cost-effective and safer option, as sulfur is both cheap and abundant, reducing environmental impact.

But its widespread adoption has been hindered by a rapid power loss flaw. This is due to a pesky byproduct, polysulfides, which form during the charging and discharging cycles. 

Polysulfides dissolve and migrate, which degrades battery performance and shortens its lifespan.

The newly developed COF material offers a solution to this problem by actively trapping and repurposing these polysulfides.

As compared to previous attempts, this new COF incorporates specific “radicals” (molecules with unpaired electrons) that act as tiny catalysts. 

These radicals are specifically based on an organosulfur compound called tetrathiafulvalene (TTF) units. 

The radicals enable a highly efficient chemical reaction within the pores of the newly developed COF material (named R-TTF•+-COF). 

This reaction effectively traps polysulfides and converts them back into usable sulfur. It eventually prevents the polysulfides from shortening the battery’s lifespan.

“The material consists of tetrathiafulvalene units ([TTF]2•+) and trisulphide radical anions (S3•-) connected via benzothiazole (R-TTF•+-COF). This significantly improves the catalytic activity and electrical conductivity of the COF,” the researchers explained in the press release dated September 15.

The material enhances performance

The team elucidated the material’s mechanism through a series of experimental analyses, including solid-state nuclear magnetic resonance (ssNMR) spectroscopy, electron spin resonance (EPR) spectroscopy, and theoretical calculations.

The material properties regenerate the battery by converting polysulfides into usable sulfur, directly combating the degradation plaguing Li-S batteries.

“This allowed us to show that the radical cations [TTF]2•+ act as catalytic centres that bind LiPSs and facilitate the elongation and cleavage of the S−S bonds,” Sijia Cao, a PhD student, explained technically. 

The results showcased that new material enhances the performance of lithium-sulfur batteries, allowing them to last over 1,500 cycles with a minimal capacity loss of just 0.027% per cycle.

This level of durability, which surpasses the typical 1,000-cycle limit for these batteries, has not been achieved before with similar organic catalysts.

“Integrating such radical scaffold structures into lithium-sulphur batteries shows great promise,” said Yan Lu, the study’s author.

The development could advance sustainable energy storage in various technologies, such as electric vehicles and electric aircraft.

The research team believes there’s even more room for improvement by customizing the radical structures.

The findings were published in the Journal of the American Chemical Society.  

🔗 Sumber: interestingengineering.com

📌 MAROKO133 Hot ai: Startup Using AI to Bring Whitney Houston Back on Tour 13 Year

The estate of famed singer Whitney Houston is reviving her legendary vocals with AI for an upcoming orchestral tour, 13 years after her tragic death.

The event, called “The Voice of Whitney: A Symphonic Celebration,” used “stem separation technology” courtesy of an AI-powered music platform called Moises to isolate her voice from recordings and produce “near-studio quality audio.”

“This project demonstrates how legacy artists and their estates can create meaningful experiences for music lovers through the thoughtful use of AI technology,” said Ross Michaels, whose firm Park Avenue Artists collaborated with Houston’s estate and Moises on the project, in a statement. “It’s a powerful example of how AI can honor artists’ legacies while enriching the audience experience in beautiful and respectful ways.”

The collision between AI and the music industry has raised hotly-disputed questions about the legacy and rights of deceased artists. We’ve already seen Aubrey “Drake” Graham using AI to revive the voice of rapper Tupac Shakur, and The Beatles using similar tech to bring John Lennon’s voice for a recent song.

The phenomenon can be particularly gauche when interlopers use it to profit off deceased artists’ likenesses without permission. In July, Spotify was caught sharing AI-generated covers on the profile of country musician Blaze Foley, who died 36 years ago, in what a surviving Foley business associate called an “AI schlock bot.” Some of the biggest names in the industry signed an open letter last year, denouncing the use of AI in music and demanding protections against the tech.

However, some cases are far more nuanced than that. For instance, country music star Randy Travis used AI to recreate his own voice after suffering a debilitating and near-fatal stroke.

The AI-powered isolation of Houston’s voice, considered one of the greatest of all time, is another complex case. On the one hand, Houston’s estate has given the project its full support.

“We knew this had to be done right,” said Houston’s sister-in-law and executor of her estate, Pat Houston, in the statement. “Moises and our partner Park Avenue Artists elevated the idea with the heart, care, and creative excellence that Whitney always embodied.”

“The result is something truly special,” she added. “A gift for longtime fans and a powerful introduction for a new generation discovering her voice.”

But at the same time, Houston herself passed away in 2012, long before it was mainstream for artists to make decisions about the use of AI after their death.

The tour is scheduled to kick off on September 20 at the Cincinnati Music Hall.

More on AI: Sam Altman Warns That AI Is About to Cause a Massive “Fraud Crisis” in Which Anyone Can Perfectly Imitate Anyone Else

The post Startup Using AI to Bring Whitney Houston Back on Tour 13 Years After Her Death appeared first on Futurism.

🔗 Sumber: futurism.com