Samsung has a plan to make phones even thinner and longer-lasting by 2017

Samsung has announced that it's working on "denser batteries" and thinner camera sensors to arrive in its smartphones as soon as 2017. The struggle that has plagued virtually every mobile developer is making a thin phone that doesn't cut corners. If Samsung is successful, this will be a big step in creating a more efficient handset that doesn't have to sacrifice precious battery life. To achieve this, Samsung is upping the energy density of its batteries from 700Wh/l (Watt-hours per li