If they can keep the power curve consistent, Mr Worf, Big Oil has something to fear.
On Tue, Aug 17, 2010 at 4:27 PM, Mr. Worf <hellomahog...@gmail.com> wrote: > > > *24M Could Reduce Cost of Batteries for Electric Cars by 85% by > 2015<http://feedblitz.com/r.asp?l=49104677&f=64651&u=17726256&c=0> > * > > *Ad Support* : *Nano > Technology*<http://www.feedblitz.com/t2.asp?/64651/17726256/0/http://www.nextbigfuture.com/p/searchresults.html?PLUCKsearchTerm=nano%20technology&PLUCKwhichPage=relatedAdLinks> > *Netbook* > <http://www.feedblitz.com/t2.asp?/64651/17726256/0/http://www.nextbigfuture.com/p/searchresults.html?PLUCKsearchTerm=netbook&PLUCKwhichPage=relatedAdLinks> > *Technology News > *<http://www.feedblitz.com/t2.asp?/64651/17726256/0/http://www.nextbigfuture.com/p/searchresults.html?PLUCKsearchTerm=technology%20news&PLUCKwhichPage=relatedAdLinks> > *Computer > Software*<http://www.feedblitz.com/t2.asp?/64651/17726256/0/http://www.nextbigfuture.com/p/searchresults.html?PLUCKsearchTerm=computer%20software&PLUCKwhichPage=relatedAdLinks> > > <http://www.feedblitz.com/t2.asp?/64651/17726256/0/http://3.bp.blogspot.com/_VyTCyizqrHs/TGlmKelO0CI/AAAAAAAAIvM/_M6nw_gfgS4/s1600/flowbattery.jpg> > > A company called 24M (24 Molar), has been spun out of the advanced battery > company A123 > Systems.<http://www.feedblitz.com/t2.asp?/64651/17726256/0/http://www.technologyreview.com/energy/26023/?ref=rss>It > will develop a novel type of battery based on research conducted by > Yet-Ming Chiang, a professor of materials science at MIT and founder of A123 > Systems. He says the battery design has the potential to cut those battery > costs by 85 percent. > > The battery pack alone in many electric cars can cost well over $10,000. > Cutting this figure could make electric vehicles competitive with > gasoline-fueled cars. > > The new company has raised $10 million in venture-capital funding, and > about $6 million from the Advanced Research Projects Agency-Energy (ARPA-E), > which will fund collaboration between the company and MIT and Rutgers > University. > > > > 24M uses a "semisolid" energy storage material (rather than the solid > electrode material used in most batteries today), and that it combines the > best attributes of conventional batteries, fuel cells, and flow > batteries<http://www.feedblitz.com/t2.asp?/64651/17726256/0/http://en.wikipedia.org/wiki/Flow_battery>while > avoiding some of the disadvantages of these technologies. > > The problem with a fuel cell is that it can't be recharged by applying > electrical current--you need to refill the fuel tank. That's fine if the > fuel is widely available, but right now hydrogen can be hard to come by. > Flow batteries require vast amounts of electrolyte because their energy > density is low. "It's like managing a large swimming pool full of corrosive > liquid," Chiang says. As a result, flow batteries are not practical for > cars. As with fuel cells, the new battery can store large amounts of energy > without also needing large amounts of supporting materials to extract. > > They have developed a proof-of-concept device--which was needed to get the > Arpa-e grant. They have a goal of five years to get the first systems out in > the field. > > The zinc-bromine flow battery design promises energy storage for less than > $500 per > kilowatt-hour.<http://www.feedblitz.com/t2.asp?/64651/17726256/0/http://intelligentenergyportal.com/article/flow-batteries-swimming-mainstream-current>That’s > about a third the cost of storage using lithium-ion batteries and > even somewhat less than the cost of using sodium-sulfur batteries. MIT > received $5 million of Recovery Act money to further develop a semi-solid > (perhaps a gel) electrolyte flow battery which has the potential of being > about an eighth the cost of today’s electric vehicle batteries. > > A flow battery is a form of rechargeable battery in which electrolyte > containing one or more dissolved electroactive species flows through an > electrochemical cell that converts chemical energy directly to electricity. > Additional electrolyte is stored externally, generally in tanks, and is > usually pumped through the cell (or cells) of the reactor, although gravity > feed systems are also known. Flow batteries can be rapidly "recharged" by > replacing the electrolyte liquid (in a similar way to refilling fuel tanks > for internal combustion engines) while simultaneously recovering the spent > material for re-energization. > > Various classes of flow batteries exist including the redox > (reduction-oxidation) flow battery, in which all electroactive components > are dissolved in the electrolyte. If one or more electroactive component is > deposited as a solid layer the system is known as a hybrid flow battery. The > main difference between these two types of flow battery is that the energy > of the redox flow battery can be determined fully independently of the > battery power, because the energy is related to the electrolyte volume (tank > size) and the power to the reactor size. The hybrid flow battery, similar to > a conventional battery, is limited in energy to the amount of solid material > that can be accommodated within the reactor. In practical terms this means > that the discharge time of a redox flow battery at full power can be varied, > as required, from several minutes to many days, whereas a hybrid flow > battery may be typically varied from several minutes to a few hours. > > Another type of flow battery is the redox fuel cell. This has a > conventional flow battery reactor, which only operates to produce > electricity (i.e. it is not electrically recharged). Recharge occurs by > reduction of the negative electrolyte using a fuel (e.g. hydrogen) and > oxidation of the positive electrolyte using an oxidant (typically oxygen or > air). > > Examples of redox flow batteries are the vanadium redox flow battery, > polysulfide bromide battery (Regenesys), and uranium redox flow battery. > Hybrid flow batteries include the zinc-bromine, cerium-zinc and all-lead > flow batteries > > > > -- > Celebrating 10 years of bringing diversity to perversity! > Mahogany at: http://groups.yahoo.com/group/mahogany_pleasures_of_darkness/ > > -- "If all the world's a stage and we are merely players, who the bloody hell wrote the script?" -- Charles E Grant http://www.youtube.com/watch?v=fQUxw9aUVik
