Energy storage in ceramic dielectrics

Burn, I.; Smyth, D. M.

doi:10.1007/bf00555636

Cited by 262 publications

(134 citation statements)

References 8 publications

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“…Nowadays, energy storage capacitors with the capability of ultra-fast charging-discharging (<1 ls) are widely used in modern electronics and electrical power systems. [1][2][3][4][5][6] For a dielectric capacitor, high maximum polarization (P max ), low remnant polarization (P r ), and the breakdown electric field (BDS) are desired for achieving high recoverable energy density (W rec ) and energy conversion efficiency (g). In general, three kinds of ceramic materials are used in capacitors: linear dielectrics, anti-ferroelectric (AFE), and ferroelectric (FE).…”

mentioning

confidence: 99%

Enhanced energy storage density by inducing defect dipoles in lead free relaxor ferroelectric BaTiO3-based ceramics

Zhou

Pang

2017

Applied Physics Letters

141

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In this work, Mn-doped 0.9BaTiO3-0.1Bi(Mg2/3Nb1/3)O3 ceramics were prepared by the conventional solid state reaction method, and the effect of defect dipoles on energy storage properties of lead free relaxor ferroelectric BaTiO3-based ceramics was studied. The crystal structure, dielectric properties, and energy storage properties were explored in detail. It was found that polarization hysteresis (P-E) loops of 0.9BaTiO3-0.1Bi(Mg2/3Nb1/3)O3-x wt. % MnCO3 (0.2–0.5) ceramics took on high maximum polarization (Pmax) and low remanent polarization (Pr). Meanwhile, recoverable energy density (Wrec) and energy conversion efficiency (η) were obviously enhanced by inducing defect dipoles into BaTiO3-Bi(Mg2/3Nb1/3)O3 relaxor ferroelectrics. The 0.9BaTiO3-0.1Bi(Mg2/3Nb1/3)O3-0.3 wt. % MnCO3 ceramic was found to exhibit good energy storage properties with a Wrec of about 1.70 J/cm3 and a η ∼ 90% under an electric field of 210 kV/cm. The breakdown electric field and Wrec of BaTiO3-based materials were significantly increased in the present work, and they might be good candidates for high power energy storage applications.

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confidence: 99%

Enhanced energy storage density by inducing defect dipoles in lead free relaxor ferroelectric BaTiO3-based ceramics

Zhou

Pang

2017

Applied Physics Letters

141

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“…[1][2][3] Equally, as their operation is not reliant on the kinetics associated with large-scale ion migration, they can demonstrate strong thermal stability, 4 and can operate reliably in high temperature environments where other technologies struggle. 5,6 A major drawback, however, is that the energy stored per unit volume (energy density) in bulk and thick film devices is relatively low: in BaTiO 3 , SrTiO 3 (STO), or PbZrO 3 bulk ceramics 7 and in commercial X7R capacitors 8,9 typical energy densities have been found to be 1-2 Jcc À1 . Slightly higher values ($6 Jcc -1 ) have been demonstrated in other material systems, 8,9 but are still relatively modest.…”

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confidence: 99%

Increasing recoverable energy storage in electroceramic capacitors using “dead-layer” engineering

McMillen¹,

Douglas²,

Correia³

et al. 2012

Applied Physics Letters

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The manner in which ultrathin films of alumina, deposited at the dielectric-electrode interface, affect the recoverable energy density associated with (BiFeO3)0.6–(SrTiO3)0.4 (BFST) thin film capacitors has been characterised. Approximately 6 nm of alumina on 400 nm of BFST increases the maximum recoverable energy of the system by around 30% from ∼13 Jcc−1 to ∼17 Jcc−1. Essentially, the alumina acts in the same way as a naturally present parasitic “dead-layer,” distorting the polarisation-field response such that the ultimate polarisation associated with the BFST is pushed to higher values of electric field. The work acts as a proof-of-principle to illustrate how the design of artificial interfacial dielectric “dead-layers” can increase energy densities in simple dielectric capacitors, allowing them to compete more generally with other energy storage technologies.

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“…There have been attempts to increase ε r while maintaining high breakdown strength. Ceramics (such as BaTiO 3 and Pb (Zr 1-x Ti x ) O 3 with perovskite structure) generally exhibit higher ε r as compared to polymer and glass materials. The breakdown strength, however, generally decreases with increasing ε r .…”

Section: Introductionmentioning

confidence: 98%

Preparation and properties of strontium barium niobate based glass-ceramics for energy storage capacitors

et al. 2011

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Na 2 O-BaO-SrO-Nb 2 O 5 -B 2 O 3 -SiO 2 glassceramics were prepared by melt-casting followed by controlled crystallization. X-ray diffraction results show that Ba 0.27 Sr 0.75 Nb 2 O 5.78 with tungsten bronze structure formed as the dielectric phases from the glass matrix at 800°C. However, a secondary phase NaSr 1.2 Ba 0.8 Nb 5 O 15 occurs when crystallization temperature exceeds 850°C. The glass-ceramics exhibit excellent stability in permittivity values from room temperature to 200°C and low dielectric losses below 0.05. Electrical testing demonstrates that the breakdown strength increases with crystallization temperature. The P-E characteristics at room temperature do not show any clear ferroelectric behavior. The glass-ceramic material heated at 800°C/3 h+950°C/3 h shows a breakdown strength of 1400 kV/cm and its energy storage density can reach up to 4.0 J/cm 3 , which may be a strong candidate for high energy density storage capacitors for portable or pulsed power applications.

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Energy storage in ceramic dielectrics

Cited by 262 publications

References 8 publications

Enhanced energy storage density by inducing defect dipoles in lead free relaxor ferroelectric BaTiO3-based ceramics

Enhanced energy storage density by inducing defect dipoles in lead free relaxor ferroelectric BaTiO3-based ceramics

Increasing recoverable energy storage in electroceramic capacitors using “dead-layer” engineering

Preparation and properties of strontium barium niobate based glass-ceramics for energy storage capacitors

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