tagged w/ lithium batteries
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Graphene, that microscopic chicken wire made of carbon atoms, has a great many theoretical uses. Among these is to improve Lithium-ion battery technologies, and the big brains at the Lawrence Berkeley National Laboratory have created a graphene and tin composite material for use in battery electrodes. When it's baked at 572 degrees Fahrenheit (300 degrees Celsius) the tin turns into nanopillars that widen the gap between the graphene layers. The greater volume of tin provided by these tiny towers improves electrode performance (read: faster charging), and the flexibility of the graphene prevents electrode degradation. Naturally, current prototypes can only maintain capacity over 30 charge cycles -- as opposed to the hundreds required for commercial applications -- so some serious improvement has to happen before we see it strut its stuff in any phones or EVs. This leaves us, once again, extolling the virtues of graphene, but lamenting its exclusively academic application.
http://www.engadget.com/2011/08/03/researchers-use-graphene-and-tin-sandwich-to-make-better-battery/Graphene, that microscopic chicken wire made of carbon atoms, has a great many... more
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YG
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added this
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1 year ago
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The ability to capture and store energy for later use is an elusive goal that utilities and other companies in the power generation business have long pursued.The ability to capture and store energy for later use is an elusive goal that... more
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mbk220
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added this
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2 years ago
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A new battery made of salt and paper could prove to be an environmentally benign replacement for lithium batteries in things like smart cards, RFID tags, and other low power portable devices. Researchers at Uppsala University in Sweden are testing out a prototype, and while it has a few down sides compared to lithium, it certainly has upsides as well.A new battery made of salt and paper could prove to be an environmentally benign... more
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Stand in the middle of Salar de Uyuni, the world's greatest salt desert, and the first word that springs to mind is nothing. As far as the eye can see, nothing. Not a shrub or tree, not a hill or valley, just an endless expanse of white.Stand in the middle of Salar de Uyuni, the world's greatest salt desert, and the... more
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San Francisco Mayor Gavin Newsom is interviewed by Current Green's Leah Lamb about the pitfalls of new green technologies. The question was submitted by Megkem. Newsom spoke to wifi, energy storage and management, tidal energy, lithium batteries, reducing consumption, LED lights, and banning T12 lights.San Francisco Mayor Gavin Newsom is interviewed by Current Green's Leah Lamb... more
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New & less expensive Lithium iron phosphate Batteries are capable of charging in 1/18th the amount of time it currently takes most Lithium-ion batteries on the market today. An assumption made by scientists placed theoretical speed limits in the transference on lithium ions in the material composing the battery; they were wrong. In fact, the rate of transference was quicker than they ever imagined and was only being slowed down by the manner in which the transference of the ions begins in the current market batteries - through tunnels in the physio-chemical makeup of the current Li Co. The research conducted at the Massachusetts Institute of Technology (MIT) in the United American States by Gerbrand Ceder was instrumental in breaking down the speed-limit barrier and fashioning a technique to guide the ions through the Lithium matrix at much quicker rates, aligning them with the tubules via a "beltway" on the surface of the material where tunnel-heads typically form.
These newly-worked battery designs do not overheat the way current market models might and will not degrade in charge capacitance as it ages. It is claimed by the lead scientist, Ceder, that it may be market-ready in two or 3 years time, but my question is whether it will be compatible with the present technology?
I would love to upgrade to a more efficient and practical battery component... if it works with all my current technology! Can we pop these newer batteries into the same slots we use today?!New & less expensive Lithium iron phosphate Batteries are capable of charging in... more
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