Currently a Team effort for better batteries is underway at the University of Cambridge. Scientists from Cambridge have recently pointed out that in less than the necessary time it takes to build a Nuclear Power Plant, lithium-air batteries could be contributing to making oil, coal and nuclear obsolete. Lithium-Air batteries are five times cheaper and lighter than today's lithium batteries.
These new developments place the technology of battery storage comparable to non-renewable fuels. Lithium-air batteries have a density that is ten times more than a lithium-ion battery. That is over 90% efficient through the discharge and recharge cycle. Also these batteries can be recharged well over 2,000 times before a need to replace them. This can drive down the cost for an electric car with batteries to a fifth of current costs. Additionally, these newer lithium-air batteries will weight a fifth of current batteries, thus allowing a car drive of over 400 miles possible on one charge.
Now technically the energy density is still lower than energy produced from oil. However, much of that oil producing energy is wasted by today's trucks and cars. The oil fuel is not utilized efficiently and as much as three-quarters of the oil fuel energy is lost in heat. Nevertheless, researchers at the University of Cambridge have shown how the development of a lithium-air battery looks very promising.
A New Year is upon us and time will tell. Meanwhile, Fuel Cells that make electricity by running off of free Hydrogen obtained from free rain water with power from free sun light working a photovoltaic panel are also moving closer to the launch pad, where we will all hear those heart stopping words, "Mission Control, we are GO for launch!"
Bill Lauto, at GoingTrueGreen.com
International Sustainability and Energy Consultant
Contribute your comments!