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Researcher Develops Explosion-Proof Lithium Metal Battery With 2X Power of Lithium-Ion (hothardware.com)

MojoKid writes: Tufts University professor and founder of Ionic Materials, Mike Zimmerman, hopes that his resilient ionic battery technology will finally replace Lithium Ion. The reason scientists and researchers pay so much attention to battery design is because today's lithium-ion technologies have several downsides, as we saw recently with Samsung's Galaxy Note 7 recall. If you were to take apart a lithium-ion battery, you'd find a positive electrode called the anode and a negatively charged electrode called the cathode. There's a thin separator that sits between the anode and cathode. Everything else is filled up with liquid, or electrolyte. Charging the battery causes positively charged ions to flow through the liquid from the negative side to the positive side. As you use the battery, the ions flow in the opposite direction. However, the electrolyte is extremely flammable and they can explode when pierced or overheated. Zimmerman's ionic battery trades the flammable liquid for a piece of plastic film to serve as the electrolyte. It isn't prone to overheating and catching fire. The same goes for piercing, cutting or otherwise destroying the battery. Also, unlike lithium-ion batteries, Zimmerman's ionic batteries use actual lithium-metal, which can store twice as much power. Lithium-ion batteries don't contain lithium-metal because they're even more prone to overheating and exploding than lithium-ion, but that risk is removed by Zimmerman swapping out the liquid electrolyte for a solid. Further reading: Yahoo News

4 of 124 comments (clear)

  1. Re:Battery meet science experiment. by Nkwe · · Score: 5, Funny

    Zimmerman's ionic batteries use actual lithium-metal, ...

    Just don't drop it in water if it ever gets damaged.

    Or feed it after midnight

  2. No real questions answered by locater16 · · Score: 5, Informative

    As usual, new battery announcement, with nonexistent details about real, practical questions that are highly relevant to practical implementation such as: Power density? Battery lifetime? Ease of manufacturing/cost? All of these need to be at least as good as current, top of the line li-on batteries, or it'll die the same death as the previous hundred or so "breakthrough" batteries that have been announced. None of them were so much as mentioned, instead saying (evasively) this uses "real!" lithium metal which "can store twice the power (energy density) of traditional li-on batteries". But can the battery itself store twice the energy density of li-on batteries? And which ones, today's top ones or like, some irrelevant comparison to li-ons from over a decade ago?

  3. Actual source: by Gravis+Zero · · Score: 5, Informative

    This is the source of the information. It's part of PBS' "Search for the Super Battery" which airs today (February 1, 2017) at 9 pm on PBS.

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  4. Re:Uh, thanks. by rtb61 · · Score: 5, Informative

    Perhaps this is better, "Li-ion batteries use an intercalated lithium compound as one electrode material, compared to the metallic lithium used in a non-rechargeable lithium battery."(https://en.wikipedia.org/wiki/Lithium-ion_battery), even referenced. - and just in case - "In chemistry, intercalation is the reversible inclusion or insertion of a molecule (or ion) into compounds with layered structures. Examples are found in graphite and transition metal dichalcogenides." (https://en.wikipedia.org/wiki/Intercalation_(chemistry)) - oh bugger - "Transition metal dichalcogenide (TMDC) monolayers are atomically thin semiconductors of the type MX2, with M a transition metal atom (Mo, W, etc.) and X a chalcogen atom (S, Se, or Te.). One layer of M atoms is sandwiched between two layers of X atoms. A MoS2 monolayer is 6.5 Ã... thick."(https://en.wikipedia.org/wiki/Transition_metal_dichalcogenide_monolayers) - when will it end - The chalcogens (/ËkælkÉ(TM)dÊ'ánz/) are the chemical elements in group 16 of the periodic table. (https://en.wikipedia.org/wiki/Chalcogen) ;D.

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