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Mitsui Mining and Smelting Develops New Silicon-Based Anode for Li-Ion Batteries
Mitsui Mining & Smelting addressed this by covering the silicon with thin copper and creating a structure with spaces to accommodate the swelling of the cell inside its negative electrode.
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New Carbon Material May Allow for Storage of Large Amounts of Renewable Energy : CleanTechnica
However engineers and scientists at The University of Texas at Austin have made a breakthrough in the development of a new carbon-based material that they believe might allow for at least a doubling of current electricity storage capabilities. The new structure is called grapheme, and measures in at one atom thick
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InvestorIdeas.com Articles
Batteries are becoming increasingly important to our lives. Not only to sustain our rapidly expanding wireless technology requirements, but also to support our need to travel about. With hybrids, plug in hybrids and fully electric vehicles beginning to provide us with more cost effective transport, we’re bound to depend more and more on batteries. And at a larger scale, as we integrate more renewable sources of energy into our electricity grid, we’ll need to manage supplies with more uncertainty. So, there is likely to be an increased need for energy storage solutions to help temper the ups and downs of power supply irregularity.
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Lithium iron phosphate is one of the promising cathode materials for use in next-generation lithium-ion batteries, given its environmentally friendly properties, lower cost and good thermal stability.
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Is air the key to electric cars? | Greenbang
Air batteries, which create electricity from a reaction between oxygen in the air and a zinc negative electrode, can store five times as much electricity as a similarly sized li-ion battery, although there are problems before they can be commercialised
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Report: Toyota Focusing on Metal-Air Cells for Next-Generation Battery Technology | Green News | Eco News
The Nikkei
reports
that Toyota’s newly established department for battery research (
earlier post
) is focusing on metal-air cells as the
next-generation battery technology for its vehicles.
more fromwww.econewz.info
On Board Energy Storage - Reason Automobile Engineers Chose (Choose) Fossil Fuel : CleanTechnica
Batteries have to contain all of the chemicals on both sides of their energy releasing equation. The very best batteries available today can store about 0.4 MJ/kg (0.05 kw-hr/lb) including the cases and safety systems. In contrast, gasoline carries about 46 MJ/kg (5.7 kw-hrs/lb).
Even with a 20% efficient IC engine, a gasoline tank stores 20 times as much energy as a battery of equal weight. As the vehicle is moving it gets rid of some of that weight. Battery powered vehicles must carry the full weight of their energy source.
The energy density difference also plays a key role in the time that it takes to put more energy back on the vehicle once a fuel load is consumed. A two minute fill-up of a 12 gallon tank puts the equivalent of 87 kilowatt-hours into the vehicle, again, taking into account the 20% thermal efficiency.
87 kilowatt-hours in 2 minutes works out to 2.6 MegaWatts. Even with a 220 volt connection, that would require about 11,800 amperes of current. Just imagine the size of the electric cables for that current.
There are certainly places and applications where electric vehicles have a role, but it is worth remembering that at least five or six generations of engineers have looked very hard at trying to meet transportation needs and they keep coming back to the same fact - when you want to move a vehicle, you need power, (energy per unit time).
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Plug-In 2008: Video Demo of Coulomb’s Smart Charging « Earth2Tech
The company’s charging stations use a simple key fob, like the one you might already use to buy gas, to unlock the station.
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Automakers going greener | Cleantech.com
The soaring price of oil seems to be forcing a sea change in the car business.
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Souped-up battery prepares to slay the gas guzzlers - energy-fuels - 27 February 2008 - New Scientist Environment
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The Energy Blog: Exxon: Film May Lead to Car Battery that is Lighter and Safer
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30-Year Laptop Battery is Indeed Too Good to Be True | EcoGeek | Battery, Power, Beta, Laptop, Would
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