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<joke> Oh, Solution. Phones with stretchy backs and a balloon battery. </joke>

• juliesulti 9y ago
  You laugh, but a pouch cell as mentioned in this article is in fact a cell that is permitted to swell and shrink. That's probably why these researchers started there. As regards the article, Lithium-Silicon batteries have the potential to add much more than 50% to the charge density of Lithium-ion batteries. More like 400% in theory. But nobody has demonstrated a cheap, production-ready process for such a thing, because a charged silicon anode occupies much more space than a discharged one, and the associated mechanical stress is a severe problem. There has been an endless parade of press releases from universities and national laboratories over the past 10 years on this topic.
  • altcognito 9y ago
    In cases where space and portability aren't a concern (utility energy storage), this would be a great fit.