Dielectric capacitors, as one of the important electronic devices, are widely used in various fields. However, most ferroelectric capacitors with high energy storage density require excessively high electric fields. In this work, we have prepared 0.9(Bi 0.5 Na 0.5) 0.7 Sr 0.3 TiO 3-0.1 Bi(Mg 2/3 Nb 1/3)O 3 relaxor ferroelectric
Read MoreOptimal energy storage properties are achieved in 0.9BBNT-0.1SSN ceramic, with a large W rec of 2.02 J/cm 3 and a high η of 90.18% under a moderate electric field of 206 kV/cm. More importantly, both the W rec and η of 0.9BBNT-0.1SSN ceramic show outstanding stability (including frequency, thermal, and cycle life stability)
Read MoreRecently, the energy crisis and international pollution have encouraged an increased demand for sustainable renewable energy storage devices [1], [2]. Among these, dielectric energy storage capacitors are commonly utilized in high-power electronic fields, such as pulsed power systems and medical-surgical lasers.
Read MoreSuperior energy storage properties with the recoverable energy storage density (W rec) of 6.64 J cm −3 and energy storage efficiency (η) of 96.5% can be
Read MoreHerein, it is demonstrated that giant strain response of ≈0.51% with small hysteresis of ≈29% and large recoverable energy density (≈1.6 J cm −3) under low electric field (120 kV cm −1), together with excellent stabilities against temperature, frequency, and 0.5
Read MoreObviously, the amplitude and discharge time of the current increases as the electric field increases, which means that more energy will be released as the electric field increases. Fig. 9 (c) shows that the peak current has the same trend with the amplitude and the discharge current amplitude reaches the maximum value of 0.19 amp under 170
Read MoreHowever, the sharply reduced energy storage capabilities caused by conduction loss impede the applications of polymer-based nanocomposites at harsh environments. In this work, the 2D hybrid structure fillers of boron nitride nanosheets-titanium dioxide (BNNSs-TiO 2 ), where TiO 2 nanoparticles tightly wrap around the 2D
Read MoreTwo F-decorated χ3 configurations (Fχ3-A and Fχ3-B) with very close energy and good kinetic stability were identified for the Li storage. Li atoms were gradually loaded on both configurations
Read MoreLead-free dielectric ceramics with a high recoverable energy-storage density (W rec) and improved efficiency (η) are crucial for the development of pulse power capacitor devices.Although W rec has been constantly improving, mainly via an increased breakdown electric field strength (E b), a large driving electric field (>500 kV/cm)
Read MoreAchieving Remarkable Energy Storage Performances under Low Electric Field in Bi 0.5 N 0.5 TiO 3-SrTiO 3-Based Relaxor Ferroelectric Ceramics via a Heterostructure Doping Strategy Yuzhe Lin Lab for Nanoelectronics and NanoDevices, Department of Electronics Science and Technology, Hangzhou Dianzi University, Hangzhou 310018, China
Read MoreHigh-temperature dielectric Bi0.5Na0.5TiO3 (BNT)-based relaxors near a morphotropic phase boundary are developed with excellent energy storage performance. Random distribution of polar nanoregions induced by composition modulation would disrupt the ferroelectric long-range dipolar alignment and weaken the coupling between the
Read MoreFig. 7 depicts the energy-storage properties of the BNT-0.40ST-2FN ceramics at various electric fields. As the electric field increases, P max rises and P r remains almost unchanged. The Δ P increases from 43.2 μC/cm 2 to 49.9 μC/cm 2 when the electric field rises from 120 kV/cm to 170 kV/cm.
Read MoreTo meet practical energy-storage capacitors, we present an ion selective engineering strategy to develop SBT-based RFEs with excellent ESP, as illustrated in Fig. 1.A series of 0.9SBT-0.1(Bi (M 1 M 2)O 3) (M 1 = Ti 4+, Nb 5+, M 2 = Ni 2+, Mg 2+ and Co 2+) (SBT-Bi(M 1 M 2)O 3) ceramics were manufactured, which is designed due to the
Read MoreFinally, a remarkable Wrec of 5.22 J/cm 3 and excellent efficiency (η) of 93.87% were attained under a low electric field of 340 kV/cm, which make the Bi 0.5 N 0.5 TiO 3
Read MoreAbstract. Stable potassium metal batteries (PMBs) are promising candidates for electrical energy storage due to their ability to reversibly store electrical energy at a low cost. However, dendritic growth and large volume changes hinder their
Read MoreA large amount of research has been devoted to the energy storage field of dielectric ceramics, however, scientific and effective strategy to design novel
Read MoreDependence of (a, c, e) unipolar P–E loops and (b, d, f) the energy storage properties on (a, b) electric field, (c, d) temperature, and (e, f) frequency of the 4NT sample. Fig. 3 (c) and (d) give the temperature dependent P – E loops and energy storage performance of the 4NT sample at 10 Hz under 90 kV/cm.
Read MoreBy entering the business of industrial energy storage, Elli confirms its leading role in the mobility and energy transition. "We see high financial potential in this business area and the
Read MoreA novel all-inorganic flexible bilayer-like Pb 0.99 Nb 0.02 (Zr 0.55 Sn 0.40 Ti 0.05) 0.98 O 3 (PNZST BL) thin film with the same chemical composition is designed to enhance its energy-storage performance.The PNZST BL thin film that consists of a large polarization (PNZST LP) top layer and a high electric breakdown field (PNZST HE) bottom layer are
Read MoreIt was found that the electrical insulation and electrical breakdown strength of heterostructures were significantly improved with increasing amount of BFO layers, thereby exhibiting excellent energy storage performance with an energy storage density of 31.96 J cm −3 and an energy conversion efficiency of about 61% under an
Read MoreIn summary, excellent energy-storage properties have been achieved in BNT-SBT-xSZNT ceramics under low/moderate electric fields via an average ionic polarizability design method. As a consequence, excellent energy-storage properties have been achieved both in low-field ( W rec ∼ 2.7 J/cm 3 and high η of 93% at 200 kV/cm)
Read MoreThe energy storage materials of BNST-x ceramics were prepared successfully by tape-casting technique. The W rec increases linearly with increasing of the electric field and ultrahigh W rec of 5.63 J cm −3 together with outstanding η of 94% can be obtained simultaneously at 535 kV cm −1, which is superior to previous reported lead
Read MoreDielectric capacitors are fundamental energy storage components in electronics and electric power systems due to their unique ultrahigh power density. However, their relatively low energy storage density is a long-standing challenge which greatly limits their practical application range.
Read MoreAn ultrahigh energy density of 50 J cm −3 is achieved for the nominal Pb 0.925 La 0.05 ZrO 3 (PLZ5) films at low electric fields of 1 MV cm −1, exceeding the current dielectric energy storage films at similar electric field.
Read MoreHerein, it is demonstrated that giant strain response of ≈0.51% with small hysteresis of ≈29% and large recoverable energy density (≈1.6 J cm−3) under low electric field (120 kV
Read MoreBoth sustainable development in environment and safety of high-power systems require to develop a novel lead-free dielectric capacitor with high energy density (W rec) at low applied electric field this work, a remarkably high W rec of 2.9 J/cm 3 accompanying with energy storage efficiency of 56% was achieved in Ag 0.9 Sr 0.05
Read MoreThe results indicate that Pb(Zr 0.92 Li 0.08)O 3 films, annealed at 550 C, exhibit a high energy storage density of 29.53 J/cm 3, an efficiency of 82.38 % in an electric field of 4000 kV/cm, and maintain excellent electrical properties through 10 7 charge-discharge
Read MoreThe film NiO-PZO-5 exhibits a recoverable energy storage density of 19.6 J/cm 3 at 1038 kV/cm. The energy storage efficiency of all films decreased rapidly initially and kept stabilized afterwards. At same time, for NiO-PZO-5, the energy storage efficiency was 48%, which was 25% higher than that of pure PZO films.
Read MoreHerein, it is demonstrated that giant strain response of ≈0.51% with small hysteresis of ≈29% and large recoverable energy density (≈1.6 J cm −3) under low
Read MoreHigh energy-storage density under low electric fields and improved optical transparency in novel sodium bismuth titanate-based lead-free ceramics
Read MoreCurrently, pumped hydro storage is the most extensive method for energy storage; its installed capacity accounts for 39.8 GW, about 86% of China''s storage capacity. The second is electrochemical energy storage, especially lithium-ion batteries have a major percentage of 11.2%.
Read MoreAlthough high-applied electric field can usually generate high energy storage performance (ESP) for most dielectric materials, the presence of high risk at high electric field and large cost of insulation technology are the main obstacles that critically restrict the actual applications of dielectric ceramics in the energy storage area. Herein,
Read MoreBased on these works, using 0.76Bi 0.5 Na 0.5 TiO 3 -0.24SiTiO 3 as base composition and adding Bi (Mg 2/3 Nb 1/3 )O 3, we systematically investigated the
Read MoreHowever, its potential in energy storage has seldom been explored. Here the crystal structure and electrical properties of the 2D hybrid perovskite (benzylammonium) 2 PbBr 4 (PVK-Br) are investigated, and the consecutive ferroelectric-I (FE1) to ferroelectric-II (FE2) then to antiferroelectric (AFE) transitions that are driven by the
Read MoreInterestingly, the prepared ceramics exhibited a clear sandwich structure and the ultra-high W rec of 6.78 J cm −3, together with a very high η of 89.7%, could be achieved at a high electric field of 572 kV cm −1, which are superior to the previously reported lead
Read MoreCompared to linear dielectrics and ferroelectrics, relaxor antiferroelectrics (AFEs) and relaxor ferroelectrics (RFEs) exhibit great potential in the energy storage field because
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