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PARIS, June 28 — Scientists have given a 21st-century makeover to the nickel-iron battery, a gadget conceived by Thomas Edison during the era of the steam engine and horse and buggy.The upgraded battery can be recharged in around 2½ minutes as opposed to several hours at present, and discharges in under 30 seconds.Because it can store and release ... Read more at http://www.themalaysianinsider.com/tech/article/back-to-the-future-battery-spells-good-news-for-energy/