When we hear about smartphone advancements, usually it revolves around cramming more pixels onto our screens or beefing up our devices with even more powerful processors. Yet in this move to take everything mobile, where are the bigger batteries?

Dyson, the company that makes that cool-looking fan you picked up the other day, wants to help change things. The hand dryer-producer has invested $15 million in Sakti3, a Michigan-based company whose battery technology potentially has a higher energy density than the Lithium ion batteries powering our smartphones and Dyson's handheld vacuums.

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