Nature Communications
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2023
·Vol. 14
·期 1
·1-11
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IF 16.6
Zhao Weichen,Xu Diming,Li Da,Avdeev Max,Jing Hongmei,Xu Mengkang,Guo Yan,Shi Dier,Zhou Tao,Liu Wenfeng,Wang Dong,Zhou Di
The immense potential of lead-free dielectric capacitors in advanced electronic components and cutting-edge pulsed power systems has driven enormous investigations and evolutions heretofore. One of the significant challenges in lead-free dielectric ceramics for energy-storage applications is to optimize their comprehensive characteristics synergistically. Herein, guided by phase-field simulations along with rational composition-structure design, we conceive and fabricate lead-free Bi 0.5 Na 0.5 TiO 3 -Bi 0.5 K 0.5 TiO 3 -Sr(Sc 0.5 Nb 0.5 )O 3 ternary solid-solution ceramics to establish an equitable system considering energy-storage performance, working temperature performance, and structural evolution. A giant W rec of 9.22 J cm −3 and an ultra-high ƞ ~ 96.3% are realized in the BNKT-20SSN ceramic by the adopted repeated rolling processing method. The state-of-the-art temperature ( W rec ≈ 8.46 ± 0.35 J cm −3 , ƞ ≈ 96.4 ± 1.4%, 25–160 °C) and frequency stability performances at 500 kV cm −1 are simultaneously achieved. This work demonstrates remarkable advances in the overall energy storage performance of lead-free bulk ceramics and inspires further attempts to achieve high-temperature energy storage properties.
研究领域:
材料科学
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电子工程
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DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Chang Liu,Yuhao Kong,Jianhong Zhang,Chongguang Lyu,Huifang Ma
Dielectric capacitors with high power density, cost-effectiveness, and harsh environmental working abilities have gained considerable research attention. Dielectric materials are key components of dielectric capacitors and directly influence their operational performance. Among others, high-entropy perovskites are emerging as attractive candidates for energy storage materials owing to their exceptional performance driven by the high-entropy effect. Here, a high-entropy (1- x )(Bi 0.4 Na 0.2 K 0.2 Ba 0.2 )TiO 3 - x Bi(Zn 2/3 Ta 1/3 )O 3 system for energy storage devices was designed. A systematic study was conducted to investigate the ferroelectric and dielectric properties of BNKBT-BZT high-entropy ceramics (HECs). The resultant sample exhibits strong relaxor properties and exceptional energy storage properties, with a high recoverable energy storage density ( W rec ) of 4.11 J/cm³ and an energy storage efficiency ( η ) of 84 % under an electric field of 260 kV/cm. More interestingly, the BNKBT-15BZT HECs also display outstanding thermal and frequency stability. These findings suggest that the resultant BNKBT-15BZT HECs are highly promising for applications in dielectric energy storage within low-to-moderate electric field ranges.
研究领域:
材料科学
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能源存储
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DOI
高影响因子
CERAMICS INTERNATIONAL
·
2017
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IF 2.986
Yang Gao,Hanxing Liu,Zhonghua Yao,Hua Hao,Zhiyong Yu,Minghe Cao
xBa 0.7 Sr 0.3 TiO 3 -SrTiO 3 (BST-ST) multilayer ceramics with different BST layers (x=1, 3, 5) were designed and fabricated by lamination of Ba 0.7 Sr 0.3 TiO 3 (BST) and SrTiO 3 (ST) tapes. Dielectric and energy storage properties of the multilayer ceramics were investigated. BST-ST multilayer ceramics exhibited enhanced temperature- and frequency-stability of dielectric properties , accompanying high permittivity (~2000) and low dielectric loss (<0.005) at room temperature. P-E loops revealed that BST-ST multilayer ceramics displayed low remnant polarization and favorable maximum polarization. The optimal energy storage performance was obtained in the composition of x=5 with dielectric breakdown strength of 220 kV/cm and energy storage density of 2.3 J/cm 3 . These results indicate that BST-ST multilayer ceramics can be a favorable candidate for dielectric capacitor applications.
研究领域:
材料科学
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电子工程
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2021
·Vol. 32
·期 9
·11845-11856
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IF 2.478
Lin Xiongwei,Zhao Xiaobo,Zhou Lei,Zhao Mingrui,Lin Yi,Yao Yingbang,Liang Bo,Tao Tao,Lu Sheng-Guo
Lead-free relaxor ferroelectric ceramics with high recoverable energy storage density and energy storage efficiency over a broad temperature and frequency range are attractive for pulsed power capacitor applications. In this work, novel barium zirconate titanate-based lead-free relaxor ferroelectric ceramics are designed via introduction of Bi(Zn 0.5 Sn 0.5 )O 3 with heterovalent ion substitution at both A- and B-sites which could disrupt long-range order, induce polar nanoregions (PNRs), and reduce remnant polarization ( P r ). The (1 − x )Ba(Zr 0.15 Ti 0.85 )O 3 – x Bi(Zn 0.5 Sn 0.5 )O 3 ((1 − x )BZT– x BZS) ( x = 0.02, 0.06, 0.10, and 0.14) ceramics were prepared using a conventional solid-state reaction method. In addition, the structure, dielectric, ferroelectric, and energy storage properties of (1 − x )BZT– x BZS ceramics were systematically studied. All (1 − x )BZT– x BZS ceramics exhibited pure perovskite structure. With the increase of BZS content, the relaxor ferroelectric feature of (1 − x )BZT– x BZS ceramics tended to increase gradually, and slim linear P – E loops were obtained in x = 0.10–0.14. A high recoverable energy storage density W rec of 2.16 J/cm 3 and a high energy storage efficiency η of 90.3% were simultaneously achieved in x = 0.10 at 250 kV/cm, together with excellent temperature and frequency stability, which were superior to those of the reported barium zirconate titanate-based ceramics. Our work provides an effective strategy to optimize the energy storage performance of lead-free barium zirconate titanate-based ceramics toward practical applications.
研究领域:
材料科学
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电子工程
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DOI
高影响因子
SOLID STATE SCIENCES
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2023
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IF 3.5
Zhiguo Wen,Yuke Yang
The poor comprehensive energy storage performance (energy storage density and energy storage efficiency) is a key scientific problem to be solved in the field of energy storage ceramics. In this work, (0.67- x )BiFeO 3 - x Bi 0.1 Na 0·7 NbO 3 -0.33BaTiO 3 -0.15 wt%MnCO 3 (BNBFNT- x , x = 0, 0.1, 0.2, and 0.3) ceramics were designed. The microstructure, dielectric properties , energy storage properties, and charge-discharge performances of BNBFNT- x ceramics were systematically investigated. The maximum recoverable energy density W rec of the BNBFNT-0.10 ceramic is 3.06 J/cm 3 with an efficiency of 81.4%. Apart from that, the ceramic also demonstrates excellent frequency (the variation of W rec in the frequency range of 10 Hz – 90 Hz is ± 6.4%) and thermal stability (the variation of W rec in the temperature range of 25 °C – 100 °C is ± 7.3%). Furthermore, the BNBFNT-0.10 ceramic has ultra-fast charge and discharge speeds (t 0.9 = 0.032 μs), a large power density ( P D = 22.2 MW/cm 3 ), and an extremely high current density ( C D = 355.6 A/cm 2 ).
研究领域:
材料科学
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物理学
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2018
·Vol. 29
·期 24
·20832-20839
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IF 2.324
Dong Jiannan,Wang Zhongyang,Sun Kai,Jiang Qian,Xie Peitao,Fan Guohua,Qu Yunpeng,An Liqiong,Fan Runhua
Capacitors with a high dielectric constant and low dielectric loss are highly demanded for electronic applications, such as electric devices and energy storage. To enhance the performance of those electronic applications, it is of great significance to achieve capacitors with stable dielectric property both in a broad ranges of frequency and temperature. In this research, flexible Acrylic-polyurethane/copper (APU/Cu) composites with different filler fractions were successfully synthesized. Excellent flexibility of APU/Cu composites is maintained even when Cu particles reached to 19.11 vol%. The dielectric and thermal properties of APU/Cu composites were systematically investigated. Enhanced dielectric constant and lower dielectric loss were achieved. Meanwhile, it is found that the permittivity fluctuated slightly with the increase of frequency and temperature, suggesting that permittivity was independent on frequency and temperature over a broad range. This research shed lights on the application of APU/Cu composites in flexible thin-film capacitors and stretchable electronic devices.
研究领域:
材料科学
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电子工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2019
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IF 4.175
Feng Si,Bin Tang,Zixuan Fang,Hao Li,Shuren Zhang
Novel lead-free ceramics of (1- x )BaTiO 3 - x Bi(Mg 1/2 Sn 1/2 )O 3 (abbreviated as (1- x )BT- x BMS, with x = 0–0.20) were fabricated through a solid-state reaction route. Introducing BMS into the BT host triggered a ferroelectric-to-relaxor phase transition, which yielded slim polarization-electric field ( P - E ) loops and enhanced energy-storage performances. The large recoverable energy density with 2.25 J/cm 3 and high energy efficiency of 94% were obtained simultaneously under 240 kV/cm with x = 0.12. Furthermore, the energy storage characteristics of the 0.88BT-0.12BMS ceramics exhibited good temperature stability in the range of −55–150 °C, and great frequency stability in the range of 10–1000 Hz. Meanwhile, by means of pulsed charging-discharging evaluation, the 0.88BT-0.12BMS ceramics displayed a fast discharge period of 73 ns and a large power density of 27.7 MW/cm 3 . The results indicate that the elaborately designed 0.88BT-0.12BNS ceramics have promising potential for high-power pulsed capacitor applications.
研究领域:
材料科学
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电子工程
✓ 已验证
DOI
高影响因子
SCRIPTA MATERIALIA
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2021
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IF 5.611
Hongye Wang,Minghe Cao,Tenglong Mao,Jiqing Fu,Wengao Pan,Hua Hao,Zhonghua Yao,Hanxing Liu
Nanoceramics have a wide application in dielectric field due to their excellent dielectric properties .However, it is extremely difficult to fabricate densified BaTiO 3 with nanometer scale crystalline. In this study, nanoscaleBaTiO 3 ceramics are successfully fabricated by deposition of a FeO layer onto BaTiO 3 nanoparticle , and the structure and dielectric behavior of the BaTiO 3 @FeO nanoceramics are systematically investigated. The multilayer structure including 1) an inner tetragonal core, 2) a gradient lattice strain layer and 3) a surface insulating layer makes the dielectric constant peak tend to be rounded and broadened. Consequently, an excellent temperature/frequency stability met the X7R requirements and accompanied by the low dielectric loss are achieved in the BaTiO 3 @FeO nanoceramics.
研究领域:
材料科学
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电子工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materiomics
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2023
·
IF 9.4
Ying Zhang,Meng-Han Yan,Zhi-Fei Zhang,Hai-Rui Bai,Peng Li,Wei-Fang Han,Ji-Gong Hao,Wei Li,Yu-Chao Li,Chun-Ming Wang,Peng Fu
The increase in energy consumption and its collateral damage on the environment has encouraged the development of environment-friendly ceramic materials with good energy storage properties. In this work, (1– x )Na 0.5 Bi 0.5 TiO 3 - x Ca(Mg 1/3 Nb 2/3 )O 3 ceramics were synthesized by the solid-state reaction method. The 0.88Na 0.5 Bi 0.5 TiO 3 -0.12Ca(Mg 1/3 Nb 2/3 )O 3 ceramic exhibited a high recoverable energy storage density of 8.1 J/cm 3 and energy storage efficiency of 82.4% at 550 kV/cm. The introduction of Ca(Mg 1/3 Nb 2/3 )O 3 reduced the grain size and increased the band gap, thereby enhancing the breakdown field strength of the ceramic materials. The method also resulted in good temperature stability (20–140 °C), frequency stability (1–200 Hz), and fatigue stability over 10 6 cycles. In addition, an ultrahigh power density of 187 MW/cm 3 and a fast charge-discharge rate ( t 0.9 = 57.2 ns) can be obtained simultaneously. Finite element method analysis revealed that the decrease of grain size was beneficial to the increase of breakdown field strength. Therefore, the 0.88Na 0.5 Bi 0.5 TiO 3 -0.12Ca(Mg 1/3 Nb 2/3 )O 3 ceramics resulted in high energy storage properties with good stability and were promising environment-friendly materials for advanced pulsed power systems applications.
研究领域:
材料科学
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能源工程
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环境科学
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产品关联
DOI
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
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2023
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IF 5.7
Liang Chen,Huifen Yu,Shiqing Deng,Hui Liu,Jie Wu,He Qi,Jun Chen
The application of advanced pulse power capacitors strongly depends on the fabrication of high-performance energy storage ceramics. However, the low recoverable energy storage density ( W rec ) and energy efficiency ( η ) become the key links limiting the development of energy storage capacitors. In this work, a high W rec of ∼5.57 J cm −3 and a large η of ∼85.6% are simultaneously realized in BaTiO 3 -based relaxor ceramics via multi-dimensional collaborative design, which are mainly attributed to the ferroelectric-relaxor transition, enhanced polarization, improved breakdown electric field, and delayed polarization saturation. Furthermore, the excellent temperature stability (Δ W rec < ± 5%, 25–140 °C), frequency stability (Δ W rec < ± 5%, 1–200 Hz), and outstanding charge/discharge performance (current density ∼1583.3 A cm −2 , power density ∼190.0 MW cm −3 ) with good thermal stability are also achieved. It is encouraging that this work demonstrates that multi-dimensional collaborative design is a good strategy to develop new high-performance lead-free materials used in advanced dielectric capacitors.
研究领域:
材料科学
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电子工程
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产品关联
DOI
高影响因子
SENSORS AND ACTUATORS A-PHYSICAL
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2020
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IF 2.904
Jingjing Zeng,Jingyuan Tang,Tingting Jin,Linyu Pu,Xianhua Wei,Xu Huang,Jingsong Liu
The introduction of nano-sized BaTiO 3 (BT) into polymer host matrices brings about promising dielectric and energy storage properties. However, pristine BT tends to aggregate and is difficult to be compatible with polymer matrices, thus requiring surface modification of BT nanoparticles. In this work, γ -aminopropyl triethoxysilane (KH550) was grafted onto the surface of BT as a shell and amino-functionalized core-shell KH550@BT nanoparticles have been successfully prepared. Thereafter, poly(arylene ether nitrile) (PEN) has been chosen as polymer matrix due to its excellent thermal properties, and x KH550@BT/(1- x )PEN composite films were prepared by solution casting film formation method. The energy density of KH550@BT/PEN composites with 30 wt.% filler loading is 1.30 J cm −3 ( η = 61.32 %) at 150 MV m −1 , more than 36.84 % increase when compared with pristine PEN polymer (0.95 J cm −3 at 170 MV m −1 ). Temperature-dependent and frequency-dependent D–E loops confirmed that KH550@BT/PEN composites possess good temperature and frequency stability.
研究领域:
材料科学
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高分子化学
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Tiandong Zhang,Shimin Sun,Chao Yin,Xinle Zhang,Changhai Zhang,Yue Zhang,Yongquan Zhang,Qingguo Chi
SrTiO 3 paraelectric materials exhibit significant potential to be used as lead-free energy storage dielectrics due to their distinctive linear-like polarization behavior. Nonetheless, the application in advanced thin-film capacitors is challenging due to their low polarization strength and structural anomalies, which reduce the breakdown field strength and diminish the energy storage density. This study proposes a synergistic approach that integrates ion doping with the optimization of thermal treatment to enhance the energy storage capabilities of SrTiO 3 thin films. Initially, Mn 2+ doping in SrTiO 3 films mitigates oxygen vacancies and forms Mn 2+ -V O •• defect dipoles, thereby refining the polarization behavior and reducing the leakage current density. Subsequently, the crystalline degree of SrTi 0.99 Mn 0.01 O 3 thin films can be regulated by adjusting the annealing temperature. The optimal breakdown field strength of the resultant SrTi 0.99 Mn 0.01 O 3 films reaches 4681 kV/cm with a 1 mol% Mn 2+ doping level, enhancing the recoverable energy storage density ( W rec ) to 32.17 J/cm 3 . Furthermore, the recoverable energy storage density of SrTi 0.99 Mn 0.01 O 3 films escalates to 36.62 J/cm 3 with an efficiency of 80.28 %, upon reducing the annealing temperature to 625 °C. Moreover, SrTi 0.99 Mn 0.01 O 3 films demonstrate superior thermal stability, frequency stability, and electrical fatigue resistance, underscoring their potential as efficacious materials for film capacitor applications.
研究领域:
材料科学
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能量存储
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电介质材料
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薄膜技术
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）