Strontium titanate: An all-in-one rechargeable energy storage material

Hanzig, Juliane; Zschornak, Matthias; Nentwich, Melanie; Hanzig, Florian; Gemming, Sibylle; Leisegang, Tilmann; Meyer, Dirk C.

doi:10.1016/j.jpowsour.2014.05.095

Cited by 26 publications

(29 citation statements)

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“…Dielectric materials such as strontium titanate (SrTiO 3 ), based on perovskite materials, have been widely used in electronic devices for integrated circuits . SrTiO 3 has several features that may prompt it to be suitable for high‐voltage applications, such as the stable valence states of cations and its nonferroelectric behavior, such that it cannot experience electromechanical failure mechanisms under high electrical fields.…”

Section: State‐of‐the‐art High‐energy‐storage Dielectricsmentioning

confidence: 99%

Homogeneous/Inhomogeneous‐Structured Dielectrics and their Energy‐Storage Performances

et al. 2017

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The demand for dielectric capacitors with higher energy-storage capability is increasing for power electronic devices due to the rapid development of electronic industry. Existing dielectrics for high-energy-storage capacitors and potential new capacitor technologies are reviewed toward realizing these goals. Various dielectric materials with desirable permittivity and dielectric breakdown strength potentially meeting the device requirements are discussed. However, some significant limitations for current dielectrics can be ascribed to their low permittivity, low breakdown strength, and high hysteresis loss, which will decrease their energy density and efficiency. Thus, the implementation of dielectric materials for high-energy-density applications requires the comprehensive understanding of both the materials design and processing. The optimization of high-energy-storage dielectrics will have far-reaching impacts on the sustainable energy and will be an important research topic in the near future.

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Section: State‐of‐the‐art High‐energy‐storage Dielectricsmentioning

confidence: 99%

Homogeneous/Inhomogeneous‐Structured Dielectrics and their Energy‐Storage Performances

et al. 2017

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“…So far, research on the energy storage ceramics based on linear dielectrics (or paraelectric materials) is quite limited. Moreover, the existing researches are mainly focused on CaTiO 3 , SrTiO 3 , and TiO 2 ‐based ceramics. It is necessary to explore more linear dielectric systems with good energy storage properties.…”

Section: Introductionmentioning

confidence: 99%

Energy storage properties in Ba₅LaTi₃Ta₇O₃₀ tungsten bronze ceramics

Zhu

Zhuang

et al. 2018

J Am Ceram Soc

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Ba5LaTi3Ta7O30 tungsten bronze ceramics is a typical linear dielectric with high dielectric constant and low loss, which is expected as a promising candidate for energy‐storage application. In the present work, energy‐storage properties of Ba5LaTi3Ta7O30 tungsten bronze ceramics were investigated, and the dielectric breakdown mechanism was also discussed based on the morphology of the fracture surface. Dense ceramics were obtained by sintering at temperatures from 1500 to 1575°C. Both the dielectric constant and dielectric strength show strong dependences on the sample density. Optimal dielectric constant of 159, dielectric strength of 639 kV/cm, and energy storage density of 2.9 J/cm3 were obtained for ceramics sintered at 1550°C, that have the highest density and fine grains. The dielectric strength and energy storage density were also highly dependent on the sample thickness. For ceramics sintered at 1525°C, the dielectric strength increases from 283 to 585 kV/cm while the energy storage density increases from 0.5 to 2.3 J/cm3 when the thickness changes from 0.5 to 0.2 mm. A thermal breakdown mechanism was adopted to understand the breakdown process in the present ceramics.

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“…Strontium titanate is a well-known model transition metal oxide, which is diversely used and under permanent research for use as high-k dielectric [13], resistive random access memory [14][15][16], battery [17], oxygen sensor [18], superconductor [19], or photocatalytic material [20]. Its perovskite aristotype structure is comparatively stable, as verified by the Goldtschmidt tolerance factor [21].…”

Section: Introductionmentioning

confidence: 99%