Ontology highlight
ABSTRACT:
SUBMITTER: Cheng H
PROVIDER: S-EPMC5722920 | biostudies-literature | 2017 Dec
REPOSITORIES: biostudies-literature
Cheng Hongbo H Ouyang Jun J Zhang Yun-Xiang YX Ascienzo David D Li Yao Y Zhao Yu-Yao YY Ren Yuhang Y
Nature communications 20171208 1
Dielectric capacitors have the highest charge/discharge speed among all electrical energy devices, but lag behind in energy density. Here we report dielectric ultracapacitors based on ferroelectric films of Ba(Zr<sub>0.2</sub>,Ti<sub>0.8</sub>)O<sub>3</sub> which display high-energy densities (up to 166 J cm<sup>-3</sup>) and efficiencies (up to 96%). Different from a typical ferroelectric whose electric polarization is easily saturated, these Ba(Zr<sub>0.2</sub>,Ti<sub>0.8</sub>)O<sub>3</sub> f ...[more]