From the day I picked up the original Evo 4G, I realized that battery technology was, no doubt, lagging behind the devices it powered. Looking to push batteries a bit closer to the impressive power of today's mobile technology, researchers at Northwestern University have significantly boosted the power of lithium-ion batteries by making a few key changes.

To achieve such impressive performance enhancements, the researchers essentially poked millions of holes in the battery's graphene layers using a chemical oxidation process. Additionally, tweaks were made to the material makeup of the batteries, including packing in more ions and speeding up their movement by replacing sheets of silicon with a different substance. These changes would evidently allow a battery to charge from 0 to 100% in a miniscule 15 minutes, and last almost a week before needing to be plugged in.

The news isn't all fantastic, however. The scientists say that the performance improvements decline after just 150 charge cycles, making the new batteries less than durable. That being said, the batteries would still be a major step up over today's technology. Prof Harold Kung, part of the chemical and biological department at Northwestern had this to say:

Even after 150 charges, which would be one year or more of operation, the battery is still five times more effective than lithium-ion batteries on the market today.

Wondering when this technology will get to your hands? The researchers indicated that the batteries could hit stores in as little as five years. In the meantime, the team plans to make further improvements by taking a closer look at the cathode aspect of the battery.

via BBC