Tuesday, March 22, 2011

nanotechnology helps to create 3D battery for fast recharge

In this era of gadget,what is the most important thing?Its the battery-without battery,it's impossible to use all these advanced gadgets.Unfortunately,this most used component undergoes the least development.You have to use the same Li+ or Ni-Cd battery-the main problem with them is that their energy capacity degrade very fast if charge-discharge cycle occurs rapidly.Supercapacitators do not suffer this particular problem but they have the problem of less energy density(energy capacity means stored energy and energy density means stored energy per unit amount of mass).So the solution is too mix them up.

Apparently,researchers at "university of illinois" have found a way to do this using nano-technology.Here is an excerpt from their article published in "The Nature"
Here, we demonstrate very large battery charge and discharge rates with minimal capacity loss by using cathodes made from a self-assembled three-dimensional bicontinuous nanoarchitecture consisting of an electrolytically active material sandwiched between rapid ion and electron transport pathways.
They reached upto 400C-1000C(1C means complete charge-discharge cycle of one hour).So this means in theory at least that a Li+ battery can be made which can be charged 90% within 2 minutes!!!!!!!!!!!!!
This is an amazing development-not only in the laptop/mobile/pad industry but also in the health industry.For example think about defibrillators-which takes years to charge(!) when its necessary.This could revolutionise our approach towards the patient completely.Lets hope for the best and lets see when this technology will be commercially available!
The original article could be found here.