Archive for the ‘battery’ Category

Hitachi claims secret chemical formula will improve battery cathodes, double longevity

Before lithium-ion batteries, portable gadgets were a nightmare, forcing road warriors and Discman-toting teens to either swap disposable cells or deal with rechargables that (with few exceptions) were tricky to recharge. Of course, Li-ion batteries also have a downside: as laptop and cell phone users have no doubt found out, they too become disposable before long. One reason why is that acid in the electrolyte can corrode the cathode material — and now, Hitachi claims it’s found a way to strengthen its own. Using an undisclosed combination of elements to replace some of the manganese used in the company’s cathodes, Hitachi claims they can strengthen their crystalline configuration to resist acid, reduce cost, and best of all, double the usable life of a lithium-ion cell to about ten years. We’ve heard similar claims before, of course, with other battery manufacturers promising us twenty years, but it looks like this technology might make it out of the lab. NEDO, a Japanese government organization, has commissioned Hitachi to bring these batteries to life for industrial applications like wind farms. Cell phones, sadly, will have to wait.

Hitachi claims secret chemical formula will improve battery cathodes, double longevity originally appeared on Engadget on Wed, 07 Apr 2010 02:49:00 EST. Please see our terms for use of feeds.

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Cheers To Finger Power!

Mind you, this is not a “Green” concept and neither does it claim to be “Eco Friendly”. It’s just a helpful solution for a tricky situation. The situation being: you running out of juice on your mobile phone. So what do you do? Remove the battery from the back of the phone; give it a few good turns around your index finger and its gathered enough power to last you a conversation or a safe trip to your charger and electric point.

Designers: Song Teaho & Hyejin Lee

Technocel PowerPak pulls double duty as portable battery and home charger

Wouldn’t it be nice if your home phone charger could double as a charging device itself when taken on the road? Yes, yes it would. Technocel undoubtedly agrees, as its PowerPak does just that. When plugged into a standard wall outlet, it can simultaneously charge whatever USB device is plugged into it (amongst others, considering the bundle of tips that are included) and juice up its internal cell; once unplugged, the integrated battery can provide enough power to a dead mobile to let you yap for around three hours, or just enough to make it through whatever sobfest your ill-willed SO has planned for you next week. It’s expected to go on sale in around a fortnight at various retail locations and Sprint stores.

Continue reading Technocel PowerPak pulls double duty as portable battery and home charger

Filed under: Peripherals

Technocel PowerPak pulls double duty as portable battery and home charger originally appeared on Engadget on Thu, 15 Oct 2009 14:37:00 EST. Please see our terms for use of feeds.

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Acer issues recall for some Aspire laptops

Acer’s issued a voluntary recall for some of its Aspire laptops — all of which were manufactured before September 15th of this year. It seems that some of them are experiencing an overheat of the microphone cable after “repeated” and “extreme” pressure is applied to the left palm rest. The affected models include the AS3410, AS3810T, AS3810TG, AS3810TZ and AS3810TZG. Acer’s set up a website where you can enter the serial number of your device to see if yours might be one of the affected.

Filed under: Laptops

Acer issues recall for some Aspire laptops originally appeared on Engadget on Sat, 10 Oct 2009 15:32:00 EST. Please see our terms for use of feeds.

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Mizzou’s nuclear battery to power things smaller than your brain can imagine

Oh yeah, everyone loves the extended battery, but are we really kosher with the added bulge? A team of boffins at the University of Missouri certainly aren’t, as they’ve spent the last good while of their lives researching and developing a new nuclear battery that could be used to power devices much smaller than, well, most anything. The radioisotope cell, as it’s called, can reportedly “provide power density that is six orders of magnitude higher than chemical batteries,” and while some may question the safety of this potentially volatile device, the liquid semiconductor (used instead of a solid semiconductor) should help ease concerns. The current iteration of the device is about the size of a penny, and it’s intended to power a variety of MEMS systems. Now, if only these guys could find a way to make a standard AA last longer than a week in our Wiimote, we’d be pleased as punch.

[Via BBC, thanks Jim]

Filed under: Peripherals

Mizzou’s nuclear battery to power things smaller than your brain can imagine originally appeared on Engadget on Sat, 10 Oct 2009 11:52:00 EST. Please see our terms for use of feeds.

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