Recently, Prof. Hong Wang research team from Jia-Lab for Interface and Atomic Structure have published an article "Significantly Enhanced Breakdown Strength and Energy Density in Sandwich-Structured Barium Titanate/Poly(vinylidene fluoride) Nanocomposites" on Advanced Materials (IF: 17.493). This paper is selected to be the Frontispiece. Yifei Wang is the first.
With the rapid development of electric industry, there are great
needs for advanced electric energy-storage systems, and thus
for innovative energy-storage materials. Compared with other
electrical energy-storage devices, dielectric capacitors have
advantages in fast charge–discharge capability and high power
density. While their energy densities are at least an order of
magnitude lower than that of electrochemical devices, such as
batteries and double-layer supercapacitors. For example, the
energy density of axially oriented polypropylene (BOPP), which
is one of the most representative commercial capacitor fi lms,
is limited to less than 4 J cm −3 . As a result, polymer-based
dielectric materials with high energy densities are highly desirable
and have been investigated to reduce the size and cost of
electric power system.
This work was supported by the National Basic Research Program of
China (2015CB654603).
