A team of Samsung researchers from the Samsung Advanced Institute of Technology (SAIT) has developed a ‘graphene’ ball battery material that enables up to 45% increase in capacity, and five times faster-charging speeds than standard lithium-ion batteries. The team revealed that the graphene ball material requires only 12 minutes to fully charge a standard lithium batteries and can maintain high stability even at 60 degree Celsius temperature. The process works by coating the electrodes with a thin, popcorn-shaped layer known as a "graphene ball," they were able to produce a battery that could fully charge in just 12 minutes with up to 45 percent more capacity.

Source: https://www.techchairman.com/2017/11/samsung-develops-graphene-ball-battery.html