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#51
Originally Posted by IsaacDFP View Post
What ever happened to Fuel Cell Batteries? Claimed to power a laptop on a single charge for up to 4 months. They were researching that several years ago, haven't heard of anything close to a final product yet
Imagine charging your phone once a year, lol, we'd have a new problem? Remembering where we put the charger every year
911?

It will be a problem with bigger batteries always (along with possible increased EM radiation) that bigger energy you carry, bigger bomb you actually can make. There is restrictions already in airports how big Lion-batteries you may carry in your hand luggages.
 

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#52
Quick reply...
A fuel cell is an electrochemical cell that converts a source fuel into an electric current. It generates electricity inside a cell through reactions between a fuel and an oxidant, triggered in the presence of an electrolyte. The reactants flow into the cell, and the reaction products flow out of it, while the electrolyte remains within it. Fuel cells can operate continuously as long as the necessary reactant and oxidant flows are maintained.

Fuel cell battery search in Google turned up Sony's plan to use fuel cell which would give 14 hours of movie playing from 10 grams of methanol. Interesting, but it's downgrade: from electricity to fuel.

> There is restrictions already in airports how big Lion-batteries you may carry in your hand luggages.
What about one hundred of small Lion batteries which are then assembled on-board?
 
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#53
What about pee-power? It's yellow but it's green!
 
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#54
Originally Posted by Wikiwide View Post
What about one hundred of small Lion batteries which are then assembled on-board?
Yes it can be a problem and it is known. However although you can get a flame bomb out of Lion batteries, its flame speed is low and it rather just can deflagrate instead detonate.
 

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#55
Five big IBM ideas that will benefit us

Instead of the heavy lithium-ion batteries used now, scientists are working on batteries that use the air we breathe to react with energy-dense metal, eliminating a key inhibitor to longer lasting batteries.

If successful, the result will be a lightweight, powerful and rechargeable battery capable of powering for everything from electric cars to consumer devices.

And better yet, in some cases, batteries may disappear altogether in smaller devices.

By rethinking the basic building block of electronic devices - the transistor - IBM is aiming to reduce the amount of energy per transistor to less than 0.5v.

With energy demands this low, the result would be battery-free electronic devices like mobile phones or e-readers that can be charged using a technique called energy scavenging.

The technique can be seen in some of today's wristwatches requires no winding and charge simply based on the movement of the arm. The same concept could be used to charge handphones for example - just shake and dial.
www.ibm.com
 
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#56
I want my power delivered together with my data, please. Wireless energy transfer FTW.

When I'm offline, I will resort to my local data cache and backup battery cells.

(I can dream, can't I...)
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#57
Originally Posted by ysss View Post
I want my power delivered together with my data, please. Wireless energy transfer FTW.

When I'm offline, I will resort to my local data cache and backup battery cells.

(I can dream, can't I...)
Now you're really pushing it. Next you'll want the N900 to delivery hot pizza using only power delivered with your data.
 

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#58
Originally Posted by Joseph.skb View Post
Now you're really pushing it. Next you'll want the N900 to delivery hot pizza using only power delivered with your data.
I see non edible 3D sculpted items delivered over the net, before they progress to remote food reproduction.

3D printing is already a reality
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#59
Would it be better to have batteries that take as long to recharge as they currently do and hold 10 times more power

or

a battery thats instantly charging but holds as much as the current ones.
 

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#60
Originally Posted by ysss View Post
I see non edible 3D sculpted items delivered over the net, before they progress to remote food reproduction.

3D printing is already a reality
http://cgi.ebay.com.au/Acrylic-RepRa...#ht_500wt_1156

Is this the kind of thing that can print a 3D model? :O
 

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