High-temperature poly(phthalazinone ether ketone) thin films for dielectric energy storage.
The synthesis and characterization of poly(phthalazinone ether ketone) (PPEK) for high-temperature electric energy storage applications is described. It was found that PPEK displayed excellent stability of the dielectric properties over a broad frequency and temperature range. Little change in the breakdown field and discharge time has been observed in PPEK with the increase of temperature up to 190 degrees C. A linear correlation between the AC conductance and the angular frequency implied that the hopping as a dominant conduction process contributed to the dielectric loss. Superior energy densities, remarkable breakdown strengths, and fast discharge speeds have been demonstrated in PPEK at various temperatures.
Pan
Jilin
J
Li
Kun
K
Chuayprakong
Sunanta
S
Hsu
Tim
T
Wang
Qing
Q
D001577:Benzophenones; D025802:Electric Capacitance; D004735:Energy Transfer; D007659:Ketones / Q000737:chemistry*; D008422:Materials Testing; D008567:Membranes, Artificial; D011092:Polyethylene Glycols / Q000737:chemistry*; D011108:Polymers; D013696:Temperature
D001577:Benzophenones; D007659:Ketones; D008567:Membranes, Artificial; D011108:Polymers; C063834:polyetheretherketone; D011092:Polyethylene Glycols