Tag Archives: LithiumIonBattery

Georgia Tech develops self-charging battery that marches to the owner’s beat

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Georgia Tech develops selfcharging battery with laws of physics still intact

One of the last times we saw the concept of a self-recharging battery, it was part of a high-minded Nokia patent whose ideas still haven't seen the light of day. Researchers at Georgia Tech are more inclined to put theory into practice. Starting from a regular lithium-ion coin battery, the team has replaced the usual divider between electrodes with a polyvinylidene difluoride film whose piezoelectric nature produces a charging action inside that gap through just a little pressure, with no outside voltage required to make the magic happen. The developers have even thumbed their noses at skeptics by very literally walking the walk -- slipping the test battery under a shoe sole gives it a proper dose of energy with every footstep. At this stage, the challenge mostly involves ramping up the maximum power through upgrades such as more squeezable piezoelectrics. Georgia Tech hasn't progressed so far as to have production plans in mind; it's nonetheless close enough that we could see future forms of wearable computing that rarely need an electrical pick-me-up.

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Georgia Tech develops self-charging battery that marches to the owner's beat originally appeared on Engadget on Sun, 19 Aug 2012 04:28:00 EDT. Please see our terms for use of feeds.

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Korean carbon-coated lithium-ion battery could cut recharge times down to minutes

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Korean, carboncoated lithiumion battery could cut recharge times down to minutes

Anyone who's had to recharge an EV -- or, for that matter, any mobile device with a very big battery -- knows the pain of waiting for hours while a lithium-ion pack tops up. South Korea's Ulsan National Institute of Science and Technology has developed a conduction technique that could cut that charging time down to less than a minute. By dousing the nanoparticle materials of the battery in a graphite solution that's then carbonized, the researchers make a web of conductors that all start charging at once; current batteries have to charge towards the center slowly, like a not-very-edible Tootsie Pop. The immediate goal is to develop a secondary battery for an EV that could provide extra mileage in a matter of seconds. Here's hoping that the Ulsan team's fast-charging battery is more viable than others and spreads to just about everything -- we'd love to have EVs and laptops alike that power up in as much time as it takes to fill a traditional car at the pump.

[Image credit: iFixit]

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Korean carbon-coated lithium-ion battery could cut recharge times down to minutes originally appeared on Engadget on Wed, 15 Aug 2012 19:31:00 EDT. Please see our terms for use of feeds.

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Fisker Karma owner returns from grocery run to find hybrid EV on fire

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Fisker's Karma EV catches for the second time

Fisker Automotive can't seem to catch break -- because its Karma hybrid EV sedan has yet again become too hot. Similar to an incident last spring that left a model burnt to near smithereens and damaged its owner's house, the Karma above caught fire in a Woodside, CA parking lot while powered off. Jalopnik was the first to get word of the incident, noting that the damage remained reserved to the front left of the vehicle, near where an exhaust is located. As the story goes, the owner found the vehicle emitting smoke after returning from a grocery run, prompting a call to Fisker and then the local fire department, which arrived as it was already engulfed in flames. In a statement to Wired's Autopia, Fisker has been vehement to note that the damage appears to be far from where the car's battery and sensitive electrical components are located, and that it wasn't plugged in for a charge -- furthermore, it's already had correspondence with the owner and is actively investigating the matter with plans to issue an update when there are findings to share.

All that said, it remains to be seen whether the Karma's battery system, supplied by A123 Systems (and the focus of previous recalls), had any role in igniting the car. Thankfully there were no reports of injuries from the incident, but as you can tell from the photo, the car was essentially totaled. You'll find a video of the Karma in flames being quelled by firefighters after the break, along with the official statement by Fisker given to Autopia.

Continue reading Fisker Karma owner returns from grocery run to find hybrid EV on fire

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Fisker Karma owner returns from grocery run to find hybrid EV on fire originally appeared on Engadget on Sun, 12 Aug 2012 05:44:00 EDT. Please see our terms for use of feeds.

Permalink Wired Autopia  |  sourcewoody77atgmail (YouTube), Jalopnik  | Email this | Comments

A123 Systems’ new lithium ion tech keeps EV batteries cool, your wallet in check

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A123 Systems' new lithium ion tech keeps EV batteries cool, your wallet in check

EV battery maker A123 Systems has had a rocky history as of late following a Fisker battery recall, but it may just be turning the corner with a new lithium ion advancement. Nanophosphate EXT widens the temperature range that A123's lithium iron phosphate-based batteries can withstand before losing power: an EXT battery musters 20 percent more power than before when it's as chilly as -22F and can keep over 90 percent of its original capacity after 2,000 full charges, even if it's been run in a blistering 113F heat. The longevity has its obvious advantages for anyone who lives in an extreme climate, but it could also lead to cheaper EVs and hybrids -- the less cooling a car battery needs, the lower the up-front cost and the lighter the car gets. Full production won't start until the first half of 2013, though that's ample time for companies to at least think about slotting Nanophosphate EXT battery packs into 2014 or later cars such as the Atlantic.

Continue reading A123 Systems' new lithium ion tech keeps EV batteries cool, your wallet in check

A123 Systems' new lithium ion tech keeps EV batteries cool, your wallet in check originally appeared on Engadget on Wed, 13 Jun 2012 05:55:00 EDT. Please see our terms for use of feeds.

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Eton anticipates next natural disaster with self-powered FRX radios

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Eton anticipates next natural disaster with self-powered FRX radios

Eton, the name behind solar-powered sound systems and emergency radios, is updating its disaster-preparedness portfolio with the new FRX series of self-powered radios. The FRX 1, FRX 2 and FRX 3 use hand-turbine energy to keep the internal lithium ion battery juiced, and all include a glow-in-the-dark indicator, LED flashlight and DC input. While the FRX 1 offers only the basic components, the FRX 2 and 3 have solar panels for recharging, along with a headphone jack and a USB port for powering other gadgets. The FRX 3 boasts a digital alarm and radio -- as opposed to the analog radio on the FRX 2 -- and a display for receiving NOAA weather alerts. Eton priced the radios at $25, $40 and $60, respectively, and it's currently selling the three options with American Red Cross co-branding at outlets such as Amazon, Best Buy and REI. Realizing your crank-powered Raptor is on its last legs? Check out the PR past the break.

Continue reading Eton anticipates next natural disaster with self-powered FRX radios

Eton anticipates next natural disaster with self-powered FRX radios originally appeared on Engadget on Wed, 16 May 2012 15:38:00 EDT. Please see our terms for use of feeds.

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Fisker rep defends Karma hybrid sedan in garage fire aftermath

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Fisker rep defends its hybrid sedan in garage fire aftermath

Last week, a newly purchased Fisker Karma went up in flames, damaging its owner's home and earning the company behind that hybrid sedan plenty of bad press. The auto maker hasn't submitted an official explanation for the fire, though the former chief engineer for the late General Motors EV1 electric car places the blame on the hybrid's tight engine bay packing. Fisker clearly isn't having any of that -- according to the company's director of powertrain:

Our technologies and engine design have been fully tested and certified at the highest level. It is irresponsible and ill-informed for technology pundits to suggest otherwise in order to secure media attention for unfounded claims.

No defensiveness there, then.

Fisker rep defends Karma hybrid sedan in garage fire aftermath originally appeared on Engadget on Tue, 15 May 2012 17:15:00 EDT. Please see our terms for use of feeds.

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USPS goes postal on lithium ion batteries, refuses to ship smartphones overseas

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The USPS has announced that it'll refuse to ship any gear containing lithium ion batteries overseas. The postal service believes combusting power packs have caused two fatal cargo plane crashes since 2006 -- hence the ban, which takes effect from May 16th. Anyone wishing to ship the latest tech to those living or serving overseas will have to use another shipping company -- although the ban might be relaxed in 2013, once safety testing has been carried out.

USPS goes postal on lithium ion batteries, refuses to ship smartphones overseas originally appeared on Engadget on Fri, 11 May 2012 07:15:00 EDT. Please see our terms for use of feeds.

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Fisker Karma reportedly sets house on fire, doesn’t restore cosmic balance

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Fisker's Karma woes aren't relenting anytime soon, as one new owner just found out the hard way. A driver in Sugar Land, Texas parked his recently obtained hybrid sedan in his garage last week, only to have the car self-immolate minutes later and damage his new home. Despite the slight risk of lithium-ion batteries catching fire, the luxury car's power pack (unplugged at the time) appears to have been left in one piece -- suggesting that something more complicated is at fault. For their part, neither Fisker nor insurance investigators are ready to offer a definite explanation as to what set the car on fire, although an electrical panel in the garage is a possible lead. Hybrids and pure EVs typically aren't at significant risk of igniting, so we might not ask for a refund... but we would recommend keeping an eye (and a nose) on any potential fire hazards around your eco-friendly auto.

Fisker Karma reportedly sets house on fire, doesn't restore cosmic balance originally appeared on Engadget on Tue, 08 May 2012 23:48:00 EDT. Please see our terms for use of feeds.

Permalink Autoblog  |  sourceAutoweek  | Email this | Comments