Tech & Science Researchers create flexible battery that can run on salt water

17:21  12 august  2017
17:21  12 august  2017 Source:   Engadget

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.

However, a research team in China has developed a new type of flexible battery that doesn't require dangerous chemicals. And the researchers discovered that the nanotube batteries might have an additional unforeseen use.

However in the future that may no longer be a limitation because in a paper published by Chem (via The Verge), it seems that researchers have managed to create a battery that is not only flexible , but it can also be powered by saltwater

  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.

Researchers create flexible battery that can run on salt water . They could be powered by body fluids like sweat or tears in the future.

Researchers create flexible battery that can run on salt water . They could be powered by body fluids like sweat or tears in the future.

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.

Louisa Johnson uses nebuliser to keep voice in shape

  Louisa Johnson uses nebuliser to keep voice in shape Louisa Johnson has revealed she uses a nebuliser containing hot salt water to protect her vocals.The 'X Factor' winner had to explain the device she has, which consists of hot salt water, as it looked like she was using a vaping device instead of a cigarette backstage at Brighton's Pride festival - the biggest celebration for the LGBT community - over the weekend.

A Chinese research team has made a new kind of flexible battery that 's not only free of dangerous chemicals, it can actually run on salt water . In a statement, one of the team's researchers , Yonggang Wang, suggests the science powering these batteries could have handy medical uses, too.

Researchers create flexible battery that can run on salt water . When SpaceX's rocket takes off on August 14th, it will be carrying the "Spaceborne Computer," a machine that could make things a lot easier for future deep space missions.

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

The world's smartest water bottle could save your life .
You got lost hiking in the woods and you finished all the water you carried in with you. The Ecomo smart bottle allows you to test and filter water before you drink it.You’re pounding the pavement in an unfamiliar city on a very hot day.

—   Share news in the SOC. Networks

Topical videos:

This is interesting!