The power of mobile devices could be doubled, but researchers are first focusing on improving larger smartphone batteries. How is it possible that a phone can do so many things—summon a car, order groceries, make video calls, count footsteps—and still drain its battery so quickly? The constant charging required seems outdated for such a smart device. Why hasn’t anyone made a better phone battery?
“To have a smartphone battery that lasts a week or more, you need to look for batteries with higher energy density – that’s the basic thing you’re looking for,” said Venkat Srini, a materials scientist in charge of energy storage and research Venkat Srinivasan said. Lawrence Berkeley National Laboratory’s Distributed Resources Division. Batteries are very complex objects, so it is difficult to achieve any kind of continuous improvement. “Energy density refers to the amount of energy stored within a smartphone battery. To extend the charging time of a phone or laptop battery to a week, researchers will need to double the battery’s energy density in the next few years. Recent improvements in phone batteries have allowed Energy density is increasing by about 5% to 6% per year, which means a smartphone or laptop can be used for several more hours.
How can you double your phone’s battery life?The power of mobile devices could be doubled, but researchers are first focusing on improving larger batteries.
How is it possible that a phone can do so much—summon a car, order groceries, make video calls, count footsteps—yet drain its battery so quickly? The constant charging required seems outdated for such a smart device. Why hasn’t anyone made a better phone battery?
“To have a smartphone battery that lasts a week or more, you need to look for batteries with higher energy density – that’s the basic thing you’re looking for,” said Venkat Srini, a materials scientist in charge of energy storage and research Venkat Srinivasan said. Lawrence Berkeley National Laboratory’s Distributed Resources Division.
“Smartphone batteries are very complex objects, so it’s difficult to get any kind of continuous improvement.”Energy density refers to the amount of energy stored within a battery. To extend the charging time of a cell phone orlaptop batteryto a week, researchers will need to double the battery’s energy density in the next few years. Recent improvements to smartphone batteries have increased energy density by about 5% to 6% per year, meaning a smartphone or laptop can be used for several more hours.
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