SiGNa Chemistry Inc creates a water-rechargeable battery

Mar 02, 2011 by Katie Gatto weblog

When you think about charging a battery you probably picture an outlet, not a bottle of water. One company is out to change all of that. A company called SiGNa Chemistry Inc has created a hydrogen-producing cartridge that is able to work in concert with pocket-sized fuel cell charging device in order to give cell phones and other mobile devices an instant power boost.

The device, which has been dubbed the mobile-H2™, works like this. You grab one of the power cells and just add water. The device will then generate power and charge your depleted batteries without an outlet or solar panels. Good news if you happen to run out of power at night. The truly cool part of this equation is that any type of water will do. Even gray water or waste water.

The chemistry behind this is pretty cool. SiGNa's cartridge technology contains both sodium and sodium silicide (NaSi). Normally when a sodium metal reacts with , and produces gas, the reaction is fairly violent and releases a fair amount of heat. SiGNa has found a way around this by using a custom synthesis for their sodium silicide that creates a more controllable reaction.

The company is not releasing any specifics on how they synthesize their sodium silicide, but some previous documents released by the company suggest that they may have absorbed sodium into silica by coating a form of commercially available silica gel with a liquid sodium-potassium alloy, essentially creating a black powder, which would then be given a range of heat treatments to enhance its stability.

Explore further: First of four Fukushima reactors cleared of nuclear fuel

More information: signachem.com/wp-content/theme… na/pdf/mobile-h2.pdf

Related Stories

Crystal clues to better batteries

Feb 19, 2007

Longer-lasting laptop and mobile phone batteries could be a step closer thanks to research by scientists at the University of Oxford.

Power on the go

Apr 12, 2006

Mobile devices are becoming more and more intelligent – allowing users to watch movies on a mobile phone or laptop, or navigate with a PDA – but at the same time they require increasing amounts of power. To prevent the ...

Recommended for you

The state of shale

Dec 19, 2014

University of Pittsburgh researchers have shared their findings from three studies related to shale gas in a recent special issue of the journal Energy Technology, edited by Götz Veser, the Nickolas A. DeCecco Professor of Che ...

Website shines light on renewable energy resources

Dec 18, 2014

A team from the University of Arizona and eight southwestern electric utility companies have built a pioneering web portal that provides insight into renewable energy sources and how they contribute to the ...

Better software cuts computer energy use

Dec 18, 2014

An EU research project is developing tools to help software engineers create energy-efficient code, which could reduce electricity consumption at data centres by up to 50% and improve battery life in smart ...

User comments : 4

Adjust slider to filter visible comments by rank

Display comments: newest first

Bob_B
1 / 5 (1) Mar 02, 2011
I knew they'd find a use for the powdered water they invented last month.
antialias
3 / 5 (2) Mar 03, 2011
The use of the word 'cool' (in two successive sentences to boot) isn't exactly confidence inspiring in a 'science' article. Sounds more like advertising.
NotAsleep
not rated yet Mar 03, 2011
I'm pretty certain this implies it consumes water AND sodium... I wonder how often you'd need to replace the "PowerPUKK"
franco_bonafe
not rated yet Mar 03, 2011
There is not such thing as confidence inspiring articles on this site. I find articles really entretaining though.
I've always hated this sort of advertise-focused description of products. It's not a water-rechargable battery, it's a sodium rechargable battery. Sodium is the real "fuel" here. They might have improved the efficiency of the hydrogen generation or the fuel cell, but it's still not reliable. I'd like to know how much charge it can generate out of the amount of sodium it brings by default. I presume not much.

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.