Printa Battery

HollyMinkowski

I have a huge interest in battery and capacitor technology.
I found this article about printing lithium-ion batteries onto
sheets of metal or plastic. It seems they will also be able to
integrate an ultracapacitor to the devices.

http://www.economist.com/node/18007516?story_id=18007516&fsrc=rss

Ravenkallen

Interesting read... I really think ultra-capacitors hold a lot of potential for small applications, maybe even ones involving solar power.....Nice signature BTW. I guess over here in the US it would be a M4 Carbine:)

Heater.

Ravenkallen,

...ultra-capacitors hold a lot potential...

Depends on their voltage rating I guess:)

Ravenkallen

@Heater...haha, true:). Although that does bring up a weakness of any capacitor. It will always discharge at a continuously lower voltage until it reaches a point where the voltage is no longer suitable to run electronics. Perhaps that can be remedied with the advent of low voltage uC's...

Heater.

Ravenkallen,

Well luckily the energy stored in a capacitor is proportional to the square of the voltage, E = C*V*V/2.

So double the voltage you can charge it to and you have four times the stored energy to power your device. It will run four times longer. 10 times the voltage and you have 100 times the run time.

All it needs is a switched mode power supply regulator to get say 10 volts from the cap down to 3 volts or so for the device. Such regulators can be almost ninety something percent efficient now a days.

sam_sam_sam

Holly

I think this might be a good idea if some how you can keep the cost down per lithium-ion batteries

I think that Nova Now had something on this as well about printing lithium-ion batteries onto
sheets of metal or plastic or read it some where