Webtagr - Technology News Summarizer

Ultrasonic Deep Drawing Cuts Friction by 20%, Extends Tool Lifespan

2025-03-08

Fraunhofer IWU has developed VibroDraw, a groundbreaking ultrasonic deep drawing process that reduces friction by at least 20%. By integrating ultrasonic vibrations, the process minimizes material damage, extends tool lifespan, and increases production efficiency. Successfully applied to manufacturing cell housings for electric vehicle batteries, VibroDraw promises to enable larger cell formats, leading to improved range and energy density.

(techxplore.com)

Tech Ultrasonic Deep Drawing Friction Reduction

Indiana Jones Jailbreak Exposes LLM Vulnerabilities

2025-02-24

Researchers have devised a new jailbreak technique, dubbed 'Indiana Jones,' that successfully bypasses the safety filters of large language models (LLMs). This method uses three coordinated LLMs to iteratively extract potentially harmful information, such as instructions on how to become historical villains, that should have been filtered. The researchers hope their findings will lead to safer LLMs through improved filtering, machine unlearning techniques, and other security enhancements.

(techxplore.com)

AI Security Vulnerabilities

Agricultural Waste Enables 21.39% Efficient Perovskite Solar Cell

2025-02-22

Researchers from Nanyang Technological University in Singapore and Polytechnique Hauts-de-France have developed a perovskite solar cell using a biomass-based polymer derived from agricultural waste (furan). This innovative cell achieved a remarkable 21.39% energy conversion efficiency, demonstrating a promising path towards sustainable and cost-effective solar energy. While still below silicon-based cells, this breakthrough offers a significant step towards environmentally friendly, large-scale solar energy production.

(techxplore.com)

Tech Perovskite Solar Cell Biomass Polymer Sustainable Energy

Breakthrough: Lithium-Sulfur Battery Retains 80% Capacity After 25,000 Cycles

2025-02-21

A Chinese research team has developed a revolutionary lithium-sulfur battery that retains 80% of its charge capacity after an astounding 25,000 charge-discharge cycles—significantly outperforming traditional lithium-ion batteries, which typically degrade after 1,000 cycles. This breakthrough utilizes a novel sulfur-based solid-state electrode composed of sulfur, boron, lithium, phosphorus, and iodine. The addition of iodine accelerates redox reactions, leading to faster charging and discharging. While promising, further research is needed to improve energy density and explore alternative lightweight materials.

(techxplore.com)

Tech lithium-sulfur battery solid-state battery battery technology

Stanford Study: Renewable Energy Outperforms Carbon Capture in Cost-Effectiveness

2025-02-15

A Stanford University study reveals that transitioning to 100% wind, solar, geothermal, and hydropower by 2050 would be far more cost-effective than carbon capture technologies for most countries globally. This shift would significantly reduce energy needs and costs, improve air quality, and mitigate climate change. The research compared two extreme scenarios: a complete switch to renewables versus continued fossil fuel reliance with added carbon capture. The study found that transitioning to renewables would prevent millions of illnesses and deaths annually related to air pollution from fossil fuels, making it a superior and more cost-effective solution than carbon capture. The researchers advocate abandoning policies promoting carbon capture, arguing that eliminating combustion is crucial for addressing air pollution and climate change.

(techxplore.com)

Tech carbon capture