defect engineering induces ultra-high energy storage characteristics
Giant electro-induced strain in lead-free relaxor ferroelectrics via ...
The defects are pinned after poling, forming defect dipoles polarization (P d) oriented along or close to the poling direction. P d significantly promotes the transformation of polar nano regions to ferroelectric domains during strain-electric field (S-E) cycles, resulting in ultra-high electrostrain. This work proposes a detailed mechanism ...
Read MoreEnhanced antiferroelectric-like relaxor ferroelectric characteristic ...
In this paper, we suggest a method for enhancing the ESP of BNT-based AL-RFE ceramics by modifying the energy barriers of oxygen octahedron tilting between PNRs with varied local structures via defect engineering on the lattice scale. As illustrated in Fig. 1 (b), the E-field-induced RFE-FE phase transition between adjacent PNRs from …
Read MoreCrystal-defect engineering of electrode materials for energy storage ...
Abstract. Crystal-defect engineering in electrode materials is an emerging research area for tailoring properties, which opens up unprecedented possibilities not only in battery and catalysis but also in controlling physical, chemical, and electronic properties. In the past few years, numerous types of research have been performed to alter the ...
Read MoreDefect engineering in molybdenum-based electrode materials for energy …
Molybdenum-based materials have stepped into the spotlight as promising electrodes for energy storage systems due to their abundant valence states, low cost, and high theoretical capacity. However ...
Read MoreUltra-high energy storage performance in …
Engineering relaxors by entropy for high energy storage performance. Relaxor ferroelectrics are the primary candidates for high-performance energy storage dielectric capacitors. A common approach to tuning the relaxor properties is to regulate the local compositional….
Read MoreUltra-high energy storage performance in …
DOI: 10.1016/j.jpowsour.2024.234210 Corpus ID: 268012725; Ultra-high energy storage performance in Bi5Ti3Mg2/3Nb1/3O15 film induced by defect dipole engineering @article{Liu2024UltrahighES, title={Ultra-high energy storage performance in Bi5Ti3Mg2/3Nb1/3O15 film induced by defect dipole engineering}, author={Quanlong …
Read MoreDefect engineering, a path to make ultra-high strength low …
This planar defect was frequently observed in synthesized NWs due to their low formation energy [30]. The I 1-SF burger vector R = (1 / 3) [01 1 ‾ 0] + (1 / 2) [0001] [29] can be generated by removing a layer from the perfect crystal and moving the other portion of NW by R. The schematic for faulted NW is shown in Fig. 1 a.
Read MoreExcellent energy storage and hardness performance of …
Considering the brittle nature of ceramics, the optimization of their mechanical properties is also crucial to the reliability of this device for energy storage application. Particularly, a high energy storage density and a high hardness have been simultaneously achieved in those ceramics with ultra-fine grains [15], [16]. The results …
Read MoreUsing defects to store energy in materials – a …
Engineering challenges and proof-of-concept devices for storing and releasing energy with defects are discussed. Our work …
Read MoreUltra-high energy storage performances regulated by depletion …
An ultra-high recoverable energy storage density of 159.7 J cm −3 and a high storage efficiency of 70% are obtained in such PNP-type heterostructural films, which are …
Read MoreUltrahigh Energy Storage Characteristics of Sodium Niobate …
Lead-free ceramic capacitors are widely applied for novel pulse power supply systems owing to their environmental friendliness, high power density, and fast charge–discharge characteristics. Nevertheless, the simultaneous achievement of a higher recoverable energy storage density (Wrec) and efficiency (η) is still challenging and …
Read MoreDefect Engineering of Carbons for Energy Conversion and Storage ...
In this review, recent advances in defects of carbons used for energy conversion and storage were examined in terms of types, regulation strategies, and fine characterization means of defects. The applications of such carbons in supercapacitors, rechargeable batteries, and electrocatalysis were also discussed.
Read MoreDefect engineering boosts the reliability of ultra-thin MLCCs
Abstract. Modern electronics highly demand base metal electrode multilayer ceramic capacitors (BME MLCCs) with ultra-thin dielectric layers and high capacitances owing to the trend for miniaturization. The reliability of MLCCs is crucial for practical applications and significantly affected by the lamination process and material …
Read MoreUltra-high energy storage performance in Bi5Mg0.5Ti3.5O15 film …
The energy loss is reduced while maintaining a high polarization intensity and high breakdown electric field, which results in the ultra-high energy storage density (122.2 J/cm 3) and efficiency (77.3 %) of the Bi 5 Mg 0.5 Ti 3.5 O 15 film at an annealing temperature of 500 °C.
Read MoreUltrahigh energy storage performances derived from the relaxation ...
Lanthanum ions into Bi 5 Ti 3 FeO 15 films induces relaxation behaviors.. The introduction of La 3+ inhibit the grain growth and enhance the breakdown field.. High recoverable energy storage density of 83.2 J/cm 3 and efficiency of 79.1% are obtained.. BLTF10 films exhibited fatigue endurance and thermal stability.
Read MoreUltrahigh energy storage in superparaelectric relaxor …
Energy storage in dielectrics is realized via dielectric polarization P in an external electric field E, with the energy density U e determined by ∫ P r P m E d P, where P m and P r are the maximum polarization in the charging process and remnant polarization in the discharging process, respectively (fig. S1) (). P r manifests itself as the P-E …
Read MoreDefect engineering induces Mo-regulated Co9Se8/FeNiSe
Defect engineering could provide new ideas for the design of transition metal disulfide electromagnetic wave (EMW) absorbers with high performance. Since the effects of dipoles on impedance matching and EMW absorption are crucial for the development of novel absorbers, the polarization attenuation dependence on defect …
Read MoreDefect engineering on sea-urchin-like transition-metal oxides for high …
Reasonable design of nanostructures and application of Defect Engineering have been proved to be essential for the construction of high-performance electrochemical energy storage devices. Herein, a defect engineering strategy is developed to fabricate a 3D multi-layered sea urchin-like structure assembled by 1D …
Read MoreUltrahigh energy storage performance and fast charge-discharge ...
High energy storage density (>2.00 J/cm 3) and high energy storage efficiency (>65%) are achieved at the same time in 0.002 = x ≤ 0.010 samples sintered in O 2. Especially, x = 0.008 ceramic samples exhibit high coverable energy storage density of 4.00 J/cm 3, high energy storage efficiency of 89.49% and transmittance of >60% are …
Read MoreUltra-High Energy Storage Performance in Bi5ti3mg2/3nb1/3o15 …
Ultra-High Energy Storage Performance in Bi5ti3mg2/3nb1/3o15 Film Induced by Defect Dipole Engineering. 34 Pages Posted: 22 Dec 2023. See all articles by Quanlong Liu ... Quanlong and Wang, Runjie and Tang, Zhehong and Wang, Yupei and Zhou, Yunpeng and Guo, Fei and Chen, Jieyu, Ultra-High Energy Storage Performance …
Read MoreAchieving ultrahigh energy density and ultrahigh efficiency ...
The formation of PNRs and their response to an external E-field is significantly dependent on the local E-field distribution, which is intimately related to the composition fluctuations.Due to the aforementioned characteristics of PNRs, it is challenging to simultaneously achieve high W rec and high η is challenging to …
Read MoreUltra-high energy storage performance in Bi5Ti3Mg2/3Nb1/3O15 …
Ultra-high energy storage performance in Bi5Ti3Mg2/3Nb1/3O15 film induced by defect dipole engineering. Journal of Power Sources ( IF 9.2 ) Pub Date : 2024-02-21, …
Read MoreEngineering multiple defects for active sites exposure towards ...
Point defect means vacancies, an intrinsic defect with zero dimensionality and altered atomic arrangement can influence the electrochemical activity in energy storage owe to the change in oxidation state of metal and amplified carrier concentration [9], [10].There is a huge effect of anion vacancies on the environment of surrounding cations ...
Read MoreUltra-high energy storage performance in Bi5Mg0.5Ti3.5O15 film …
An ultra-high recoverable energy storage density of 159.7 J/cm3 and high storage efficiency of 70 % are obtained in such PNP-type heterostructural films, which are attributed to the regulation of ...
Read MoreControllable defect engineering enhanced bond strength for …
Transition metal dichalcogenides (TMDs) with layered structure are regarded as a potential electrode material for high-performance energy storage devices, while intrinsic low electrical conductivity causes poor electrochemical performance. As we know, the change of atomic structure for TMDs can lead to the improvement of …
Read MoreA-site disorder induced ferroelectric to relaxor phase transition of …
Semantic Scholar extracted view of "A-site disorder induced ferroelectric to relaxor phase transition of Na(Nb0.75Ti0.25)O3 ceramics by Bi3+ for ultra-high energy storage properties" by Afaf M. Babeer et al. ... (Ti0.9Zr0.1)O3 Pb-free ceramic by defect engineering of MPB. Essam A. Elkelany Abd El-razek Mahmoud Z. M. Abd El-Fattah M. …
Read MoreDefect engineering in molybdenum-based electrode materials for energy …
This mini-review systematically summarizes recent progress in various defect engineering approaches for molybdenum-based electrode materials to accelerate ion diffusion, enhance electron transfer, adjust potential, and maintain structural stability in energy storage systems.
Read MoreSignificantly enhanced energy storage density and
The 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 MoreUltrahigh electrostrains of lead-free (Ba,Ca) (Ti,Zr)O
Piezoelectric ceramics with large electric field-induced strain are of great importance for actuator applications. Unfortunately, BaTiO3-based ceramics usually exhibit relatively low strain in spite of their high large-signal piezoelectric coefficient d33*. In this study, an ultrahigh electrostrain with a value of ~ 0.242% (d33* = 1210 pm/V) at 2 …
Read MoreMedium electric field-induced ultrahigh polarization response …
Lead-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 MoreDefect Engineering of Carbons for Energy Conversion and Storage ...
Sustainable energy conversion and storage technologies are a vital prerequisite for neutral future carbon. To this end, carbon materials with attractive features, such as tunable pore architecture, good electrical conductivity, outstanding physicochemical stability, abundant resource, and low cost, have used as promising electrode materials for energy …
Read MoreUltra-high energy storage performance in …
The rapid rate of charging and discharging, along with the high power density exhibited by dielectric energy storage films, has attracted considerable attention. However, the limited energy density hinders the broader utilization of dielectric energy storage films. The clamping relationship between the intensity of polarization and the breakdown electric …
Read MoreA-site disorder induced ferroelectric to relaxor phase
Where W loss and E represent the energy loss density and applied electric field respectively.. Based on these equations, the dielectric capacitors that possess large [ΔP = P max - P r] high breakdown strength (BDS) and high η are imperative to achieve superior energy performance.To date, the characteristics of energy-storage have …
Read MoreControllable defect engineering enhanced bond strength for …
In brief, defects engineering is an efficient strategy to optimize energy storage properties of materials. Consequently, the development of controllable defect engineering will provide guidance for the design of TMDs materials and encourage more efforts toward the application of TMDs in high-performance energy storage and energy …
Read MoreUltra-high energy storage performance in Bi
The incorporation of Nb 5+ and Mg 2+ ions at the B-site induces the generation of defect states and defect dipoles, which disrupts the long-range ordered ferroelectric domains in BTMN films, thereby resulting in an …
Read MoreGiant electro-induced strain in lead-free relaxor ferroelectrics via ...
Extremely asymmetric P-E, S-E, and J-E curves are observed for the poled samples, as shown in Fig. 3.When the external electric field is along the poling direction (marked as E +), there is an obvious current peak (J 1) in the J-E curve with a large electro-induced strain in the S-E curve, indicating the transition from PNRs to ferroelectric …
Read MoreUltra-high energy storage performance in Bi
The lead-free BL x TMN (x = 1.0) film demonstrates exceptional energy storage characteristics, offering valuable insights for enhancing energy storage properties and overcoming the clamping relationship between …
Read MoreDefect‐Induced Dense Amorphous/Crystalline Heterophase Enables High ...
In contrast, the defective heterophase A/C-V 2 O 3− x @C-HMCS demonstrates the strongest Na + adsorption energy in either the crystalline phase, amorphous phase, or even at heterointerfaces sites, indicating that the defects induce the formation of highly dense A/C interfacial sites, which can not only modulate the electronic …
Read MoreDefect and texture engineering of relaxor thin films for High …
Relaxors are a family of polar-oxides with a high degree of chemical disorder and nanosized domains. A characteristic feature of relaxors is their slim polarization–electric field hysteresis loop, which makes them effective in high-power energy storage applications requiring fast (dis)charging, such as electric vehicles, smart grids, …
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