Recently, the Advanced Material Research Center team led by Wang Zhengping and Sun Rong of the Institute of Advanced Technology of the Chinese Academy of Sciences in Shenzhen successfully found a method that can greatly increase the dielectric constant of composite materials. At the same time, it also has outstanding performance in dielectric energy storage. The related research results are based on Construction of a 3D-BaTiO3 network leading to significant enhanced dielectric permittivity and energy storage density of polymer composites. The construction of barium titanate three-dimensional network greatly improves the dielectric constant and energy storage density of polymer composites. The title was published in "Energy and Environmental Science, 2017, DOI: 10.1039/c6ee03190k". With the rapid consumption of petrochemical energy, the development and utilization of renewable energy and the development of various energy storage technologies have been spawned. Dielectric energy storage technology has the characteristics of exceptionally fast energy conversion rate, long working hours, and environmental friendliness. It has been widely used in modern electronic power industries such as wearable electronics, hybrid vehicles, and weapon systems. With the development of miniaturization and high performance of electronic devices, there is an urgent need for dielectric materials having a high energy storage density. For inorganic-particle dispersion-filled polymer-based composite dielectric materials, even if the volume content of high-dielectric filler particles is higher than 50 vol%, the dielectric constant of the composite material is difficult to obtain a breakthrough due to the low dielectric content of the polymer (generally low In 50). Based on this, the Shenzhen Institute of Electronic Functional Materials Group Yu Shuhui, Luo Yubin and others through the design of the structure and preparation of composite materials, in the polymer system to build a three-dimensional high-dielectric network, successfully solved the polymer composite dielectric The problem that the constant is difficult to increase is that when the ceramic filler content is only 30 vol%, the dielectric constant exceeds 200, and the energy storage density is also greatly improved.
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