News tagged with rechargeable battery

Rechargeable lithium-sulfur batteries get a boost from graphene

(PhysOrg.com) -- By wrapping tiny sulfur particles in graphene sheets, researchers from Stanford University have synthesized a promising cathode material for rechargeable lithium-sulfur batteries that could ...

Nanotechnology / Nanomaterials

created Jul 13, 2011 | popularity 4.2 / 5 (22) | comments 53 | with audio podcast feature

Silicon-carbon electrodes snap, swell, don't pop

A study that examines a new type of silicon-carbon nanocomposite electrode reveals details of how they function and how repeated use could wear them down. The study also provides clues to why this material ...

Nanotechnology / Nanomaterials

created Mar 14, 2012 | popularity 5 / 5 (3) | comments 0 | with audio podcast

Revealing how a battery material works

Since its discovery 15 years ago, lithium iron phosphate (LiFePO4) has become one of the most promising materials for rechargeable batteries because of its stability, durability, safety and ability to deliver ...

Nanotechnology / Nanomaterials

created Feb 08, 2012 | popularity 5 / 5 (7) | comments 0 | with audio podcast

New technology improves both energy capacity and charge rate in rechargeable batteries

Imagine a cellphone battery that stayed charged for more than a week and recharged in just 15 minutes. That dream battery could be closer to reality thanks to Northwestern University research.

Chemistry / Materials Science

created Nov 14, 2011 | popularity 4.8 / 5 (18) | comments 17 | with audio podcast

Sulfur in hollow nanofibers overcomes challenges of lithium-ion battery design

(PhysOrg.com) -- Stanford researchers have used nanotechnology to invent a better lithium ion battery cathode.

Nanotechnology / Nanomaterials

created Oct 05, 2011 | popularity 5 / 5 (14) | comments 8 | with audio podcast

The heat is on for sodium-manganese oxide rechargeable batteries

(PhysOrg.com) -- By adding the right amount of heat, researchers have developed a method that improves the electrical capacity and recharging lifetime of sodium ion rechargeable batteries, which could be a ...

Nanotechnology / Nanomaterials

created Jun 07, 2011 | popularity 4.8 / 5 (4) | comments 4 | with audio podcast

Batteries charge quickly and retain capacity, thanks to new 3D nanostructure

The batteries in Illinois professor Paul Braun's lab look like any others, but they pack a surprise inside.

Nanotechnology / Nanomaterials

created Mar 20, 2011 | popularity 4.8 / 5 (23) | comments 63 | with audio podcast

'Nanoscoops' could spark new generation of electric automobile batteries

An entirely new type of nanomaterial developed at Rensselaer Polytechnic Institute could enable the next generation of high-power rechargeable lithium (Li)-ion batteries for electric automobiles, as well as ...

Nanotechnology / Nanomaterials

created Jan 04, 2011 | popularity 4.7 / 5 (24) | comments 15 | with audio podcast

IBM offers glimpse into the future (w/ Video)

Air-powered batteries, 3-D cellphones that project holographs and personalized commutes are among the predictions of IBM scientists gazing into their crystal balls.

Technology / Hi Tech & Innovation

created Dec 23, 2010 | popularity 4.3 / 5 (23) | comments 34

World's smallest battery: Charging makes nano-sized electrodes swell, elongate and spiral

(PhysOrg.com) -- New high resolution images of electrode wires made from materials used in rechargeable lithium ion batteries shows them contorting as they become charged with electricity. The thin, nano-sized ...

Nanotechnology / Nanophysics

created Dec 09, 2010 | popularity 4.8 / 5 (4) | comments 1 | with audio podcast

Researchers find a stable way to store the sun's heat (w/ Video)

(PhysOrg.com) -- Researchers at MIT have revealed exactly how a molecule called fulvalene diruthenium, which was discovered in 1996, works to store and release heat on demand. This understanding, reported ...

Chemistry / Materials Science

created Oct 25, 2010 | popularity 4.8 / 5 (38) | comments 11 | with audio podcast

Lithium market could bloom as tide goes out on oil

Lithium is not much to look at. It's a soft and light, silver-white metal known for its use in mood stabilising drugs. But the 25th most abundant element on earth could, one day, help cure the world of its ...

Technology / Energy & Green Tech

created Jun 23, 2010 | popularity 4.5 / 5 (14) | comments 20

Peering into the never before seen (w/ Video)

(PhysOrg.com) -- Scientists can now peer into the inner workings of catalyst nanoparticles 3,000 times smaller than a human hair within nanoseconds. The findings point the way toward future work that could ...

Nanotechnology / Nanophysics

created Jun 16, 2010 | popularity 4.6 / 5 (5) | comments 0 | with audio podcast

Long-Awaited 'Alex' Android eReader Ready For Pre-Orders

(PhysOrg.com) -- You can preorder the first Alex Reader today... finally! Alex, the first Google Android-powered eReader will ship to preorders in mid-April, five months after its announcement made a huge ...

Electronics / Consumer & Gadgets

created Mar 17, 2010 | popularity 4.4 / 5 (11) | comments 3 | with audio podcast weblog

Gyrowheel to keep new bike riders upright (w/ Video)

(PhysOrg.com) -- A new device called the Gyrowheel could soon revolutionize the way children learn to ride bicycles, and they will be able to learn on their own, without training wheels, and in as little as ...

Technology / Hi Tech & Innovation

created Oct 21, 2009 | popularity 4.9 / 5 (14) | comments 13 weblog