The Replacement For the Battery?
jackd writes "Great article in Technology Review, bordering on 'too good to be true,' about a small company in Texas that is developing the replacement for the electrochemical battery. The device is a kind of hybrid battery-ultracapacitor based on barium-titanate powders. Quoting: 'The company boldly claims that its system... will dramatically outperform the best lithium-ion batteries on the market in terms of energy density, price, charge time, and safety... The implications are enormous and, for many, unbelievable. Such a breakthrough has the potential to radically transform a transportation sector already flirting with an electric renaissance.'"
Geez.. ultracapacitors.. we had supercapacitors till now.. whats next.. ubercapacitors? ubersuperultracapacitors.. anyhow..
So far, the supercaps i know of are quite expensive, and their performance degrades - i.e. with each charge cycle, the capacity gets smaller and smaller. I am not sure what the lifespan of a supercapacitor is, but it surely isn't terrbily long. I guess for the current applications (flash in cameras for example) its not all that critical - how many times is flash used over the lifetime of the camera.. If the lifespan is really improved, then they may be onto something.