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Tag Archives: lithium-ion
Energy density: Improving the lithium-ion battery
The cost and weight of batteries is the Achilles heel for electric vehicles. Today’s lithium-ion batteries used in cars such as the GM Volt are serviceable but expensive, up to 60% of the cost of the car. This has provided a major incentive for science and industry to chase large-scale battery improvement for decades. The [...]
Posted in News: Energy Storage Also tagged anode, battery, carbon threads, cathode, electric car, energy density, Envia, GM, GM Volt, manganese, silicon, U.S. DOE Leave a comment
Another graphene application – supercapacitors
While everybody knows about batteries, supercapacitors seem like a well kept secret. The reason is fairly simple. While capacitors have been used for a long time in electronics, capacitors and their souped-up cousins, supercapacitors, have only recently become candidates for competing with the common rechargeable battery. Supercapacitors store electricity as batteries do, but there are [...]
Posted in News: Energy Storage Also tagged battery, energy storage, graphene, Nanotek Instruments, supercapacitor Leave a comment
For real: A new way to produce electricity
It’s not every day that a new way to produce electricity is discovered…although it does seem there is a multitude of approaches. This one involves carbon nanotubes, those jacks-of-all-trades in the nanotech business, nanometer sized tubes of pure carbon. (In this case, think of them as ‘wires’ one-hundred thousandth of the thickness of human hair.) [...]
Posted in News: Energy Storage Also tagged battery, electricity, nanotechnology, nanotube, Seebeck effect, thermopower wave Leave a comment
Go with the flow battery
Did you know that one kind of battery can be refilled with a charge in much the same way as a gas tank? It’s not a new idea. One of the most efficient incarnations of what is called a redox flow battery was developed in the 1980s at the University of New South Wales, Australia. [...]
Posted in News: Energy Storage Also tagged alternative energy, batteries, electricity, redox flow Leave a comment
Rechargeable zinc-air batteries coming to market
If you go to your local home improvement store, the buzz-word in batteries is lithium-ion. As most of us are finding out, these are a lot better than the old alkaline or cadmium rechargeable batteries. But of course, the product cycles of modern technology are doing their thing, and a successor to lithium-ion is already [...]
New lithium-ion battery: It’s a stretch