Technology Researchers create flexible battery that can run on salt water

18:07  12 august  2017
18:07  12 august  2017 Source:   engadget.com

Tech Guru Bill Joy Unveils Battery to Challenge Lithium-Ion

  Tech Guru Bill Joy Unveils Battery to Challenge Lithium-Ion Elon Musk isn’t the only visionary betting that the world will soon be reliant on batteries. Bill Joy, the Silicon Valley guru and Sun Microsystems Inc. co-founder, also envisions such dependence. On Thursday, Joy and Ionic Materials unveiled a solid-state alkaline battery at the Rocky Mountain Institute’s Energy Innovation Summit in Basalt, Colorado, that he says is safer and cheaper than the industry leader, lithium-ion. The appeal of alkaline: it could cost a tiny fraction of existing battery technologies and could be safer in delicate settings, such as aboard airplanes.

MIT researchers create wireless transmitter to thwart hackers. But that often makes them bulky and rigid. However, a research team in China has developed a new type of flexible battery that doesn't require dangerous chemicals.

When it comes to making batteries for wearables or implantable medical devices, there are a few features that have to be incorporated. The batteries need to be flexible and remain functional while being bent or twisted, and ideally, they'll be absent

  Researchers create flexible battery that can run on salt water © Provided by Engadget When it comes to making batteries for wearables or implantable medical devices, there are a few features that have to be incorporated. The batteries need to be flexible and remain functional while being bent or twisted, and ideally, they'll be absent of harmful chemicals. So far, batteries developed for these uses don't meet that latter requirement and instead pack on extra material to keep the chemicals from leaking and coming in contact with human tissue. But that often makes them bulky and rigid. However, a research team in China has developed a new type of flexible battery that doesn't require dangerous chemicals.

Nasa's Hubble detects exoplanet with 'glowing water atmosphere'

  Nasa's Hubble detects exoplanet with 'glowing water atmosphere' Scientists have detected for the first time a large exoplanet with "smoking gun evidence" of a stratosphere. Researchers led by a team from the University of Exeter made the discovery by studying WASP-121b - an exoplanet in the WASP-121 star system - using Nasa's Hubble space telescope. They made the discovery by observing hot, glowing water molecules in the planet's atmosphere and published their findings in Nature.

Salt Water Battery Technology For Alternative Energy Storage. A group of scientists in Korea is close to creating a battery that runs on seawater big enough to power an enitre home. Researchers Develop Flexible Batteries That Can Run On Saltwater - www.ubergizmo.com.

Chinese researchers developed two types of flexible batteries that run on saline or salty water solution instead of lithium-ion electrolytes. Simply put, the newly engineered batteries are powered by a salt water solution that is biologically compatible.

Instead of packing electrolytes that are corrosive or toxic, the team used sodium-based chemicals like sodium sulfate, which was once used as a laxative, as well as saline and a solution used for cell culture. While it's still preferable that those solutions don't leak out of the batteries and onto or inside of a human, if they do, it wouldn't pose the same risks that other batteries' chemicals do. Because excessive leakage-prevention measures -- and therefore, added materials -- aren't required, the battery can easily maintain flexibility.

The research team created two versions -- a belt-shaped model and a nanotube. The sodium sulfate electrolyte worked best of the three solutions tested and its function held up against similarly-sized lithium-ion batteries currently used in wearables. And the performance of the belt-shaped version wasn't impacted even after it was bent 100 times at different angles.

New Algorithm Can Detect Your Feelings, Sarcasm Through Your Tweets

  New Algorithm Can Detect Your Feelings, Sarcasm Through Your Tweets Developers at MIT created an algorithm that can detect emotions and sarcasm.The goal was to create an algorithm that could better recognize racist tweets, reported MIT Technology Review. The developers working on it realized that there was frequently text that could only be fully understood by also understanding the sarcasm.

Salt Water Battery Technology For Alternative Energy Storage. A group of scientists in Korea is close to creating a battery that runs on seawater big enough to power an enitre home. Researchers Develop Flexible Batteries That Can Run On Saltwater - www.ubergizmo.com.

Body fluids could drive these salt -powered batteries in the future. But that often makes them bulky and rigid. However, a research team in China has developed a new type of flexible battery that doesn't require dangerous chemicals.

That these batteries can function off of sodium-based liquids means that in the future these devices might be able to run off of body fluids like sweat. And the researchers discovered that the nanotube batteries might have an additional unforeseen use. After observing that the nanotubes were accelerating the conversion of dissolved oxygen into hydroxide ions, which isn't great for battery power, they realized that this could be a feature if the devices were used in a slightly different way. "We can implant these fiber-shaped electrodes into the human body to consume essential oxygen, especially for areas that are difficult for injectable drugs to reach," researcher Yonggang Wang said in a statement. "Deoxygenation might even wipe out cancerous cells or pathogenic bacteria since they are very sensitive to changes in living environment pH. Of course, this is hypothetical right now, but we hope to investigate further with biologists and medical scientists."

The work was published this week in the journal Chem.

Chem

Scientists recreate Neptune's diamond rain using powerful lasers .
While we've yet to fully explore Neptune and its fellow gas giants, scientists have a lot of theories about them based on the info we know. The team used a plastic material called polystyrene to simulate Neptune's methane-rich atmosphere. Both the plastic and methane, which is responsible for the planet's blue cast, are made of hydrogen and carbon molecules. To create the high-pressure conditions that squeeze those hydrogen and carbon molecules into diamonds, they used SLAC's Matter in Extreme Conditions (MEC) instrument located inside the most powerful x-ray laser in the world, the Linac Coherent Light Source (LCLS).

—   Share news in the SOC. Networks

Topical videos:

This is interesting!