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Batteries


— Science

New energy cell can store up solar energy for release at night

By - July 7, 2015 2 Pictures

A photoelectrochemical cell (PEC) is a special type of solar cell that gathers the Sun's energy and transforms it into either electricity or chemical energy used to split water and produce hydrogen for use in fuel cells. In an advance that could help this clean energy source play a stronger role within the smart grid, researchers at the University of Texas, Arlington have found a way to store the electricity generated by a PEC cell for extended periods of time and allow electricity to be delivered around the clock.

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— Science

Additives keep lithium-ion batteries from catching fire

By - June 25, 2015 4 Pictures
Processor chips may get all the glory, but if it wasn't for lithium-ion batteries, modern electronics would look like something out of the 1950s. Unfortunately, while they may be compact and long lasting, these batteries also suffer from overheating and can become fire hazards as they get old. Now a team led by Stanford University and the Department of Energy’s SLAC National Accelerator Laboratory has come up with an additive that holds the promise of extending lithium battery life while improving safety and performance. Read More

Battery juices itself up using light

It's now fairly common to hear about batteries being used to store power generated by solar cells. A group of Indian scientists, however, have eliminated the middleman. They've created a battery that incorporates a titanium nitride-based photoanode in place of a conventional anode, allowing the battery to charge itself using solar or artificial light.

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— Science

Squishy battery created using wood

By - June 1, 2015 1 Picture

Wood pulp-derived nanocellulose is turning out to be pretty useful stuff. Previously, we'd heard how it could be used in things like high-strength lightweight composites, oil-absorbing sponges and biodegradable computer chips. Now, researchers from Sweden and the US have used the material to build soft-bodied batteries that are more shock- and stress-resistant than their traditional hard counterparts.

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— Mobile Technology

Smartphones could run 30 percent longer, by harvesting their own radio waves

By - May 26, 2015 1 Picture

Scientists have already devised systems that allow electronic devices to scavenge power from ambient electromagnetic energy sources such as radio waves. While the technology has generally been limited to small devices such as wireless sensors, a research team has recently created a scavenging system that charges a smartphone's battery, letting it last up to 30 percent longer per charge – and the system does so using radio signals emanating from the phone itself.

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— Science

Williams demonstrates sodium-ion-powered proof-of-concept e-bike

By - May 15, 2015 3 Pictures

Although lithium-ion batteries perform far better than alkalines, they're also relatively costly, the lithium salts used in them aren't widely available, and they sometimes catch fire. That's why some scientists are suggesting sodium-ion batteries as an alternative. To that end, Williams Advanced Engineering recently demonstrated that they could be used to power an electric bike.

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— Electronics

Better Re battery pack gives new life to old phone batteries

By - May 12, 2015 9 Pictures

If you're like a lot of phone junkies and replace your phone as soon as the latest thing comes along, you'll know that often the hardware in the old phone is perfectly fine, even the battery. But fancier new screens and more powerful processors mean that battery life usually remains a problem, making battery packs a popular accessory. Enlighten's Better Re lets you get some more use out of your old phone's battery, by allowing it to slot into an adjustable external battery charger for your new phone.

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— Environment

Tesla unveils battery storage system for home, business and utility use

By - May 1, 2015 5 Pictures
The Tesla home battery system hinted at by CEO Elon Musk several months ago has finally been unveiled by Musk himself at the company’s design studio in Hawthorne, California. Dubbed the Powerwall, the stationary home battery offers 10 kWh of storage capacity for the relatively modest price of US$3,500. A smaller unit is also available at 7 kWh for $3,000, and homeowners can stack multiple units if needed. Read More
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