Novel Na0.5Bi0.5TiO3 based, lead-free energy storage ceramics with high power and energy density and excellent high-temperature stability

Zhang, Lei; Pu, Yongping; Chen, Min; Wei, Tianchen; Peng, Xin

doi:10.1016/j.cej.2019.123154

Cited by 260 publications

(98 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…c) Comparison of discharge time of textured ceramics with other lead-based and lead-free ceramics. [5,73,[75][76][77][78][81][82][83][84][85][86][87][88][89][90][91][92][93] inset of Figure 6b. Notably, the textured ceramics behave not only enhanced W d but also the short τ 0.9 at a value of less than 0.1 µs, which is faster than that of random case (≈0.27 µs).…”

Section: Resultsmentioning

confidence: 99%

Giant Field‐Induced Strain with Low Hysteresis and Boosted Energy Storage Performance under Low Electric Field in (Bi_0.5Na_0.5)TiO₃‐Based Grain Orientation‐Controlled Ceramics

Bai

Zhao

Ding

et al. 2020

Adv Elect Materials

View full text Add to dashboard Cite

Lead‐free dielectrics with both excellent strain behavior and superior energy‐storage feature are crucial toward providing desired performance for smart electrical devices, especially under harsh environmental conditions. Herein, 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 cycling, can be simultaneously achieved in oriented (with 79.4% 〈00l〉 texture) (Bi0.5Na0.5)TiO3–BaTiO3–NaNbO3 (BNT–BT–NN) ceramics through integrating crystallographic texturing and domain engineering. Besides, a fast discharge rate of <0.1 µs along with good thermal endurance in a wide temperature range can also be acquired. It is uncovered by piezoelectric force microscopy measurements that the formation of oriented microstructure greatly promotes the domain switching and mobility, producing the considerably easy ergodic relaxor to ferroelectric phase transition with concurrently improved strain and energy storage properties in grain orientation controlled BNT–BT–NN ceramics. This study offers a feasible and propagable guidance, i.e., crystallographic texturing and domain engineering, to develop new lead‐free dielectrics for both actuators and capacitors.

show abstract

Section: Resultsmentioning

confidence: 99%

Giant Field‐Induced Strain with Low Hysteresis and Boosted Energy Storage Performance under Low Electric Field in (Bi_0.5Na_0.5)TiO₃‐Based Grain Orientation‐Controlled Ceramics

Bai

Zhao

Ding

et al. 2020

Adv Elect Materials

View full text Add to dashboard Cite

show abstract

“…First, the interface effect is widely considered to be the most important role in CP materials. On this basis, the researchers introduced internal barrier layer capacitance (IBLC) and surface barrier layer capacitance (SBLC) models to explain the CP of CaCu 3 Ti 4 O 12 , NiO, and codoped TiO 2 2‐15 . Second, electron‐pinned defect dipoles and localized defect complex/cluster related to oxygen vacancies are used to explain the CP of SrTiO 3 (ST) and codoped TiO 2 16‐21 .…”

Section: Introductionmentioning

confidence: 99%

“…One of the key factors of the above explanatory mechanisms is the oxygen vacancies, which are directly associated with the states of charge carriers and defects in materials. Doping and tuning sintering atmosphere are the efficient ways to regulate the concentration, distribution, migration of

V_{O}^{∙ ∙}

, and the defect dipoles in materials 1‐27 . Acceptor doping promotes the formation of

V_{O}^{∙ ∙}

; otherwise, donor doping reduces the number of oxygen vacancies and inhibits their migration.…”

Section: Introductionmentioning

confidence: 99%

“…On this basis, the researchers introduced internal barrier layer capacitance (IBLC) and surface barrier layer capacitance (SBLC) models to explain the CP of CaCu 3 Ti 4 O 12 , NiO, and codoped TiO 2 . [2][3][4][5][6][7][8][9][10][11][12][13][14][15] Second, electron-pinned defect dipoles and localized defect complex/cluster related to oxygen vacancies are used to explain the CP of SrTiO 3 (ST) and codoped TiO 2 . [16][17][18][19][20][21] Third, the polaronic relaxation model is established, which describes that electrons hopping leads to the creation of localized dipoles due to charge redistribution, to explain the CP of CaCu 3 Ti 4 O 12 , NiO, and codoped TiO 2 .…”

Section: Introductionmentioning

confidence: 99%

“…However, the high dielectric loss and weak temperature/frequency stability of CP materials have restricted their wide application in industry, and the origin and mechanism of CP are also controversial. Therefore, CP materials have been attracting the attention of researchers 1‐36 . At present, there are several mechanisms which correspond to explain the dielectric properties of different CP materials.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Ultralow dielectric loss in Y‐doped SrTiO₃ colossal permittivity ceramics via designing defect chemistry

Wang

Shi

et al. 2020

J Am Ceram Soc

Self Cite

View full text Add to dashboard Cite

Effects of doping of Y and sintering atmosphere on the dielectric properties of Sr 1-1.5x Y x TiO 3 ceramics (SYT, x = 0-0.014) were systematically investigated. The SYT14 (x = 0.014) ceramic sintered in N 2 attains a colossal permittivity (CP, Ɛ r = 28 084@ 1kHz, 27 685@ 2MHz) and an ultralow dielectric loss (tanδ = 0.007@ 1kHz, 0.003@ 2MHz) at room temperature. Because of using of the A-site deficient, there are V ,, in SYT ceramics. Through the comprehensive analysis of dielectric responses, X-ray photoelectron spectroscopy (XPS), electron paramagnetic resonance (EPR), and complex impedance data, it is proved that doping of Y promotes the formation of Y • (Y 3+ are located at Sr 2+ site), Y , (Y 3+ are located at Ti 4+ site), and Ti 3+ , and sintering in reducing atmosphere of N 2 results in more V •• O (oxygen vacancy) and V ,, (strontium vacancy) generating in SYT ceramics. The defect dipoles, suchas V

show abstract

Effect of Inorganic Nanoparticles on Energy‐Storage Properties of P(VDF–HFP)‐Based Nanocomposites

Guo

Zhou

et al. 2023

Adv Eng Mater

View full text Add to dashboard Cite

Polyvinylidene fluoride (PVDF) and its copolymers have been widely used in polymer‐based film capacitors due to their relatively high permittivity and electrical displacement compared with other polymers. Herein, poly(vinylidene fluoride‐hexafluoropropylene) (P(VDF–HFP)) is selected as the polymer matrix, and 0.5 (Bi0.5Na0.5)TiO3–0.5(Sr0.85Sm0.1)TiO3 (BNT–SST) nanoparticles are added as the filler into the polymer to prepare BNT–SST/P(VDF–HFP) nanocomposites. The microstructure, electrical properties, mechanical properties, and energy‐storage properties of the nanocomposites are investigated. The addition of BNT–SST nanoparticles improves the dielectric characteristics and breakdown strength of the nanocomposites. Particularly, when the BNT–SST filler content is 0.7 vol%, the highest breakdown strength reaches 545 MV m−1, which is 1.3 times higher than pure P(VDF–HFP). In addition, the insulation and mechanical properties of BNT–SST/P(VDF–HFP) composite films are improved. The highest direct current resistivity and Young's modulus obtained by 0.7 vol% BNT–SST/P(VDF–HFP) nanocomposites are 6.8 × 1013 Ω cm and 1.94 GPa, respectively. More importantly, at 545 MV m−1, the energy‐storage density and efficiency of 0.7 vol% BNT–SST/P(VDF–HFP) composites are 19.07 J cm−2 and 67.01%, respectively, which are better than other polymer matrix composites. These findings suggest that the addition of inorganic nanoparticles has important research implications for improving the energy‐storage performance of polymer‐based film capacitors.

show abstract

Novel Na0.5Bi0.5TiO3 based, lead-free energy storage ceramics with high power and energy density and excellent high-temperature stability

Cited by 260 publications

References 55 publications

Giant Field‐Induced Strain with Low Hysteresis and Boosted Energy Storage Performance under Low Electric Field in (Bi_0.5Na_0.5)TiO₃‐Based Grain Orientation‐Controlled Ceramics

Giant Field‐Induced Strain with Low Hysteresis and Boosted Energy Storage Performance under Low Electric Field in (Bi_0.5Na_0.5)TiO₃‐Based Grain Orientation‐Controlled Ceramics

Ultralow dielectric loss in Y‐doped SrTiO₃ colossal permittivity ceramics via designing defect chemistry

Effect of Inorganic Nanoparticles on Energy‐Storage Properties of P(VDF–HFP)‐Based Nanocomposites

Contact Info

Product

Resources

About

Novel Na0.5Bi0.5TiO3 based, lead-free energy storage ceramics with high power and energy density and excellent high-temperature stability

Cited by 260 publications

References 55 publications

Giant Field‐Induced Strain with Low Hysteresis and Boosted Energy Storage Performance under Low Electric Field in (Bi0.5Na0.5)TiO3‐Based Grain Orientation‐Controlled Ceramics

Giant Field‐Induced Strain with Low Hysteresis and Boosted Energy Storage Performance under Low Electric Field in (Bi0.5Na0.5)TiO3‐Based Grain Orientation‐Controlled Ceramics

Ultralow dielectric loss in Y‐doped SrTiO3 colossal permittivity ceramics via designing defect chemistry

Effect of Inorganic Nanoparticles on Energy‐Storage Properties of P(VDF–HFP)‐Based Nanocomposites

Contact Info

Product

Resources

About

Giant Field‐Induced Strain with Low Hysteresis and Boosted Energy Storage Performance under Low Electric Field in (Bi_0.5Na_0.5)TiO₃‐Based Grain Orientation‐Controlled Ceramics

Giant Field‐Induced Strain with Low Hysteresis and Boosted Energy Storage Performance under Low Electric Field in (Bi_0.5Na_0.5)TiO₃‐Based Grain Orientation‐Controlled Ceramics

Ultralow dielectric loss in Y‐doped SrTiO₃ colossal permittivity ceramics via designing defect chemistry