Abstract

   As portable electronic devices such as laptops and cellular phones become more feature-intensive, along with the advent of new wearable technologies (such as smart watches and Google glass), it is becoming increasingly important to develop batteries capable of providing higher energy densities.[1, 2] Increased gravimetric and volumetric energy density enables batteries to be developed in light-weight and compact formats, which is a pressing need for next-generation electronics and wearable devices. Apart from high energy density, operation at high gravimetric and volumetric power densities is also important for consumer electronics (such as laptops, cell phones, tablet computers, smart watches, etc.) which could potentially be charged within minutes as opposed to an hour with the present-day technology.

Full Article：http://onlinelibrary.wiley.com/doi/10.1002/smll.201400830/abstract