DOI: 10.1016/j.jeurceramsoc.2020.01.050 Corpus ID: 213890744 Enhanced energy storage density and discharge efficiency in potassium sodium niobite-based ceramics prepared using a new scheme Herein, the low cost (0.6 − x )BiFeO_3–0.4SrTiO_3– x Bi(Zn_0 ...
The sample of x = 0.05 (PLHT-0.05) exhibits excellent energy storage properties with a record-high recoverable energy storage density of 11.2 J/cm 3, and a high energy efficiency of 88.9% achieved at an electric field of 360 kV/cm.
The BCT-BMNT-0.2BS ceramic exhibited a considerably optimal recoverable energy storage density of 5.75 J/cm 3 along with a high energy efficiency of 89.63 % at 650 kV/cm. Moreover, this sample showed good stability in the temperature range of 20–160 °C and frequency range of 1–500 Hz and excellent fatigue resistance up …
As a result of the enhanced BDS and polarization, this study achieved remarkable and comprehensive outcomes: a high efficiency (η) of 85.89%, a high energy density (W rec) of 3.79 J/cm 3, an ultrahigh discharge energy density (W dis) of 3.26 J/cm 3 …
In the composite, the discharge efficiency maintains around 75% at high-field electric and the energy storage density can reach 14.13 J/cm 3, which is much larger than others composite. Similar content being viewed by others
The power density of 79.98 MW/cm 3 with a short time around 350 ns for releasing 90% of the discharge energy density was obtained. The superior cycling reliability with less than 7% degradation over 10 5 cycles and the excellent thermal stability with a variation of discharged energy density less than 5% from 25 to 150 °C guarantee …
High-performance capacitors, which have high energy storage density as well as high discharge efficiency, are desired. In this study, we have designed and prepared novel and high quality (1 − x)(0.65Bi 0.5 Na 0.5 TiO 3 –0.35Bi 0.1 Sr 0.85 TiO 3)–x(K 0.5 Na 0.5 NbO 3) [(1 − x)(BNT–BST)–xKNN, x = 0, 0.04, 0.06, 0.08, and 0.10] ceramics that …
Owing to their excellent discharged energy density over a broad temperature range, polymer nanocomposites offer immense potential as dielectric materials in advanced electrical and electronic...
energy storage density increased via ∼10 times compared with low-entropy materials ... Additionally, Fig. 12 b showed the LCSBLT ceramics, showed a maximum discharge energy density (W dis) of 1.03 J/cm 3, and the t …
Finally, when x = 0.08, and y = 0.35, the recoverable energy storage density of the sample was 5.8 J/cm 3 and a high energy storage efficiency of 88 % was obtained at 545 kV/cm. In addition, the ceramic maintains a stable actual charge and discharge capacity and an extremely fast discharge time (16.1 ns) in a wide temperature …
The KNN-H ceramic exhibits excellent comprehensive energy storage properties with giant Wrec, ultrahigh η, large Hv, good temperature/frequency/cycling stability, and superior...
The further electrification of various fields in production and daily life makes it a topic worthy of exploration to improve the performance of capacitors for a long time, including thin-film capacitors. The discharge energy density of thin-film capacitors that serves as one of the important types directly depends on electric field strength and the …
DOI: 10.1039/C9TC00087A Corpus ID: 139293527 Achieving high discharge energy density and efficiency with NBT-based ceramics for application in capacitors @article{Pan2019AchievingHD, title={Achieving high discharge energy density and efficiency with NBT-based ceramics for application in capacitors}, author={Zhongbin …
The electric breakdown strength and discharge energy storage density of the thin films improve first, and then reduce with the annealing temperature. The optimal energy storage performance is obtained in ST thin film annealed at 550 °C: an ultrahigh discharge energy storage density of 53.9 J/cm 3 with high efficiency of 77.2% at 4.541 …
Dielectric capacitors have attracted extensive attention due to their high power density along with fast charge/discharge rate. Despite the high energy storage performance were obtained in lead-based ceramics, we still need to find lead-free ceramic alternatives considering the environmental requirements, and AgNbO3 has received …
Dielectric capacitors have been widely applied to pulse charge-discharge systems with medium energy density and high power density. In this work, (Pb 1-3x/2 La x)Hf 0.96 Ti 0·04 O 3 (PLHT) antiferroelectric (AFE) ceramics were synthesized by a solid-state solution. ...
Antiferroelectrics (AFEs) are widely used for energy storage capacitors. At present, there are two methods to evaluate the energy density of AFE: the recoverable energy density W re calculated by the low-frequency P–E loop and the dynamic discharge energy density W dis calculated by the fast discharge current. ...
1. Introduction In today''s world where energy scarcity is becoming increasingly prevalent, the collection and utilization of renewable energy sources is a crucial issue. Capacitors serve as energy storage devices exhibit a high power density ranging from 10 3 –10 8 W/kg, a prolonged service life, and fast charge–discharge speeds, …
In addition, an adequate stability of energy storage properties at a range of temperatures (20–140 C), frequencies (1–100 Hz), and fatigue test durations (1–10 4 cycles) were realized in 0.10BNS ceramics. 0.10BNS ceramics displayed a high current density of 2
Dielectric electrostatic capacitors have emerged as ultrafast charge–discharge sources that have ultrahigh power densities relative to their electrochemical counterparts 1. However, electrostatic...
Dielectric capacitors with high energy density, high power density, fast charging-discharge rate and good thermal stability have potential applications in advanced electronics and electric power systems. In this work, the PbHf 1-x Sn x O 3 (PHS) antiferroelectric (AFE) ceramics are prepared via solid-state method.
In particular, the corresponding ceramic exhibits an ultrafast discharge rate (τ 0.9 = 127 ns) and a high level of discharge energy density (U dis = 1.29 J cm −3). Our study provides the groundwork for an effective way to design high-performance ceramics for application in next generation energy storage capacitors.
The development of lead-free ceramics with high recoverable energy density (W rec) and high energy storage efficiency (η) is of great significance to the current energy situation this work, a new scheme was proposed to improve the W rec and η of potassium sodium niobate ((K, Na)NbO 3, abbreviated as KNN) lead-free ceramics.. …
However, the contradiction between high polarization and high breakdown strength hinders their progression for energy storage performance. In this work, HfO 2 was introduced into 0.75Na 0.5 Bi 0.5 TiO 3 –0.24NaNbO 3 –0.01SrTiO 3 (NBT–NN–ST) RFE ceramics to form 0–3 type heterogeneous NBT–NN–ST/HfO 2 composite ceramics to …
Furthermore, with respect to the discharge performance, the antiferroelectric PLSZS ceramics exhibit a high discharge energy density of 8.6 J cm −3, and fast discharge speed where 90% of the …
Dielectric nanocomposites composed of a polymer matrix with high electric breakdown strength and inorganic ferroelectric nanofillers with large maximum electric displacement (Dmax) have recently attracted …
The 0.60BaTiO 3-0.40NaNbO 3 ceramics with relaxor ferroelectric characteristics possess an optimal discharge energy density of 3.07 J cm-3, a high energy efficiency of 92.6%, an ultrafast discharge rate of 39 ns and a …
TY - JOUR T1 - Ultrahigh Energy Efficiency and Large Discharge Energy Density in Flexible Dielectric Nanocomposites with Pb0.97La0.02(Zr0.5SnxTi0.5-x)O3 Antiferroelectric Nanofillers AU - Zou, Kailun AU - He, Chaohui AU - Yu, Yuxi AU - …
The overdamped discharge measurements show an ultrahigh discharge energy density (W D) ~3.26 J cm −3 and an ultrafast discharge rate (t 0.9) ~34 ns at 300 kV cm −1 (Fig. 5h, i).
Structure-design strategy of 0–3 type (Bi 0.32 Sr 0.42 Na 0.20)TiO 3 /MgO composite to boost energy storage density, efficiency and charge-discharge performance Author links open overlay panel Feng Li a b c 1, Xu Hou d 1, Jie Wang d, Huarong Zeng b, Bo Shen a, Jiwei Zhai a
Dielectric capacitors prepared by antiferroelectric (AFE) materials have the advantages of large power density and fast discharge ability. It has been a focus on the improvement of the recoverable energy density (W rec) and discharge energy-density (W dis) in the AFE ceramics.) in the AFE ceramics.
With an increment in Eb while maintaining the polarization, NBT–NN–ST/ x HfO 2 ceramics with x = 7 wt% exhibit an excellent recoverable energy storage density of 5.3 J cm −3 with a charge–discharge efficiency of 85%, as well as favorable under-damped charge–discharge properties with a maximum current, current density and power …
The remarkable increase in energy storage density would reduce the mass of the equipment, promoting the miniaturization and integration of electronics and electric systems. The self-healing performances of polymer film capacitors would be determined by the ability of the polymer to form conductive paths during the breakdown process ( Fig. 4 a).
Discharge results indicate that the ceramic displays high power density (P avg = 78 MW/cm 3) and discharge energy (W dis = 5.86 J/cm 3), which can rival currently reported Ag(Nb, Ta)O 3 ceramics. Voltage-assisted 3D printing of polymer composite dielectric films with low energy loss and high energy storage density