ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Mingyuan Zhao,Jing Wang,Hao Yuan,Zehan Zheng,Lei Zhao
AgNbO3-based Pb-free antiferroelectric (AFE) ceramics have attracted increasing interest owing to their excellent potential in energy storage applications. Herein, a high recoverable energy storage density (Wrec) of 7.62 J/cm3 is realized in La-doped AgNbO3 ceramics prepared via tape casting. The high Wrec is attributed to high breakdown strength Eb of 380 kV/cm induced by dense microstructure as well as fine grain size and enhanced AFE stability stemming from M2 phase and reduced tolerance factor t. The high Wrec exceeding 6 J/cm3 was maintained in a wide temperature range of 20–150 °C and exhibited frequency stability with less than 8% variation in a range of 1–200 Hz. The discharge energy density Wd exhibited temperature stability at 30–110 °C with less than 9% variation. Our research provides a good method for producing AgNbO3-based ceramics having high energy storage performances.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Shuo Zhang,Hua Hao,Rui Huang,Yi Zhou,Yanjiang Xie,Minghe Cao,Zhonghua Yao,Hanxing Liu
Dielectric capacitors put forward higher requirements on the energy storage density , working stability and fatigue resistance of materials with the increasing shortage of energy. Herein, 0.8Na 0.5 Bi 0.5 TiO 3 -0.2Bi 3.25 La 0.75 Ti 3 O 12 -x%Mn (x = 0,2,4,6) thin film capacitors are designed to address above concern. The Mn ions inhibit the valence change of Ti ions and combine with oxygen vacancies to form defect dipoles, which improve breakdown strength and energy density of the films. As a result, high energy storage density of 92.7 J cm −3 and excellent efficiency of 70.2% are synchronously achieved for the 4% Mn-doped NBT-BLT film. Besides, outstanding stability of energy storage performance also exhibit over a wide range of temperature (25–200 °C) and cycle number (10 5 ). This result provides a novel strategy for the preparation of dielectric materials with high energy storage performance and high operational stability.
研究领域:
材料科学
·
能源工程
✓ 已验证
DOI
高影响因子
High Voltage
·
2025
·
IF 4.9
Hongbo Liu,Lu Cheng,Zhiyuan Li,Jiakai Zeng,Wenfeng Liu,Shengtao Li
In this study, the authors proposed a promising structure design, the micro-crosslinked polypropylene (PP), to enhance the high-temperature energy storage density. With the grafting of 1,6,7,12-tetrachlorinated perylene- N -2-aminoethyl acrylate- N ′-dodecylamine-3,4,9,10-tetracarboxylic bisimide (PTCDA) onto PP molecules, the obtained PP-g-PTCDA achieved a superior energy storage density of 2.34 J/cm 3 at 120°C with the discharge efficiency above 90%, which was 585% higher than that of neat PP. The great enhancement, on the one hand, originated from the micro-crosslinked structure, since the restricted molecular motion can lead to the suppression of electrons' hopping across the molecular chains. On the other hand, deep traps were also introduced in PP-g-PTCDA, which restricted the electrons' hopping along the molecular chains simultaneously. This work provided an orientation to enhance the energy storage density at an elevated temperature of 120°C.
研究领域:
材料科学
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2021
·Vol. 32
·期 16
·21188-21196
·
IF 2.478
Sun Ying,Liu Hongbo,Liu Fangchao,Liu Gang
Recently, it is shown that the thin films of BiFeO 3 –BaTiO 3 –SrTiO 3 have ultrahigh-energy storage density. However, the energy storage properties of BiFeO 3 –BaTiO 3 –SrTiO 3 ternary bulk ceramics have not been studied. In this work, the BiFeO 3 –BaTiO 3 –SrTiO 3 ceramics have been prepared by a conventional solid-state reaction method and the dielectric and electrical energy storage properties have been studied in detail. The ceramic with the composition of 0.25BiFeO 3 –0.30BaTiO 3 –0.45SrTiO 3 is experimental evidenced to be the best with the highest dielectric permittivity in the ternary system. To suppress the dielectric loss and leakage current, 0.25BiFeO 3 –0.30BaTiO 3 –0.45SrTiO 3 has been doped with Mn. Mn-doped ceramics have the same perovskite structure but the fine grains are formed and the number of pores decreases. Mn-doping reduces dielectric loss, enlarges the thermally stable zone of the dielectric, and improves the electrical energy storage density simultaneously. 2 mol% Mn-doped 0.25BiFeO 3 –0.30BaTiO 3 –0.45SrTiO 3 has the most optimized electrical energy storage properties. The energy storage density is 1.33 J/cm 3 and the efficiency is 88.5% at 185 kV/cm. The discharge energy density is 2.7 times that of undoped 0.25BiFeO 3 –0.30BaTiO 3 –0.45SrTiO 3 and 90% stored energy can release in 120 ns.
研究领域:
材料科学
·
电介质物理学
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Jingyu Lin,Junhao Jiang,Yukang Zhou,Qianqian Fan,Qixin Zhuang,Puke Mi,Wei Yin,Peiyuan Zuo
Mixing fillers featured with wide band gaps in polymers can effectively meet the requirement of higher energy storage densities. However, the fundamental relationship between the crystal structures of fillers and the dielectric properties of the corresponding nanocomposites is still unclear. Accordingly, we introduced ultralow contents of the synthesized cubic Hafnium dioxide (c-HfO2) or monoclinic Hafnium dioxide (m-HfO2) as deep traps into poly(ether imide) (PEI) to explore their effects on dielectric properties and the charge-blocking mechanism. m-HfO2/PEI showed better charge trapping due to the higher electron affinity and deeper trap energy. At room temperature, the 0.4 vol % m-HfO2/PEI maintains an ultralow dielectric loss of 0.008 while obtaining a dielectric constant twice that of pure PEI at 1 kHz, simultaneously outperforming in terms of leakage current density, breakdown strength (452 kV mm–1), discharge energy density (Ud, 5.03 J cm–3), charge–discharge efficiency (η, 92%), and dielectric thermal stability. At 125 °C, it exhibits a considerable Ud of 2.48 J cm–3 and a high η of 85% at 300 kV mm–1, surpassing the properties of pure PEI. This promising work opens up a new path for studying HfO2-derived dielectrics with unique crystal structures.
研究领域:
材料科学
·
电气工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·Vol. 141
·期 30
·e55704
·
IF 2.7
Ke Yang Ni,Zhao Xin Zhang,Ai Ping Zhang,Jun Bian,Xin Kang Li,Cong Wei,Hai Lan Lin,Dai Qiang Chen
Herein, graphene oxide (GO) and its derivative, reduced GO ( r GO) and p -phenylenediamine (PPD) functionalized GO (GO- g -PPD) were first synthesized and selected as dielectric fillers, and then GO/polyimide (PI), r GO/PI, and GO- g -PPD/PI dielectric nanocomposites were fabricated through in situ polymerization-composition strategy. Fourier transform infrared, Ram, and x-ray diffraction analysis confirmed the success synthesis of r GO and GO- g -PPD dielectric fillers. The mechanical properties showed that GO- g -PPD/PI nanocomposites exhibited the highest tensile strength and elasticity modulus. TGA analysis revealed that the enhancement of thermal stability by addition of dielectric fillers. The dielectric constant of 2.5 wt.% GO- g -PPD/PI nanocomposites reached 25.05, which was 8.55 times that of pure PI (2.93). Energy storage performance tests showed that the energy storage density of GO- g -PPD/PI containing 2 wt.% filler reached 0.77 J/cm 3 , which was 71% higher than pure PI. These findings underscore the potential of GO derivative as a cost-effective reinforcement for PI dielectric nanocomposites for high-temperature capacitive energy storage applications.
研究领域:
材料科学
·
能源工程
✓ 已验证
产品关联
DOI
高影响因子
SOLID STATE SCIENCES
·
2023
·
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
·
物理学
✓ 已验证
DOI
高影响因子
SCRIPTA MATERIALIA
·
2022
·
IF 6.302
Rui Huang,Hongye Wang,Cheng Tao,Hua Hao,Zhonghua Yao,Hanxing Liu,Minghe Cao
The development of advanced pulse power technology proposes higher demand for dielectric energy storage materials . However, simultaneously obtaining high polarization and breakdown strength has become an obstacle to the development of dielectric materials. Herein, through the elaborate design of multivariant ions Me, BiMeO 3 system thin film Bi(Ni 0.5 Zr 0.5 )O 3 integrating high polarization, large breakdown strength and a localized heterostructure , generating an excellent energy storage density of 77.42 J cm −3 and efficiency of 70.29% at 5.60 MV cm −1 . The enhancive breakdown strength of Bi(Ni 0.5 Zr 0.5 )O 3 thin film is mainly attributed to the amorphous phase induced by low preparation temperature and the oxygen vacancy bound by the valence change of Ni 2+ ion, which reduces leakage current density. This design approach is expected to be widespread for the development of BiMeO 3 system thin film.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Energy Materials
·
2022
·
IF 6.959
Zhihui Yi,Zhuo Wang,Dan Wu,Ying Xue
Electrostatic capacitors have high power density, but how to improve the energy storage density of electrostatic capacitors has always been the key to solving energy problems in the background of the energy crisis. Designing multi-layer core–shell inorganic nanofillers is an effective way to break the contradiction between high dielectric constant and high breakdown strength in nanocomposites to improve the energy storage performance. Herein, polyvinylidene fluoride (PVDF)-based nanocomposites are proposed, which are filled with multi-layer core–shell structured inorganic BaTiO3@BaxSr1–xTiO3@DA nanoparticles (BT@BST@DA NPs). In the optimized 2 wt % PVDF/BaTiO3@BaxSr1–xTiO3@DA nanoparticle (PVDF/BT@BST@DA NPs) nanocomposite material, a high discharge energy density of 13.75 J/cm3 (370 MV/m) can be obtained, as well as excellent discharge efficiency. The dielectric performance and energy storage density of 2 wt % PVDF/BT@BST@DA NPs are proven to be better than 2 wt % PVDF/BaTiO3@DA nanoparticles (PVDF/BT@DA NPs). This work provides a strategy for the development of dielectrics for electrostatic capacitors with high energy storage density.
研究领域:
材料科学
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2023
·Vol. 34
·期 16
·1-11
·
IF 2.8
Chen Yuan,Huang Rui,Tao Cheng,Hao Hua,Yao Zhonghua,Liu Hanxing,Cao Minghe
Dielectric film capacitors are widely studied in recent years owing to their advanced power density and excellent mechanical and thermal stability. Despite the fact that extensive research has been done, the energy storage density still needs to be further improved. Herein, the highly polarized phase and amorphous phase are introduced into barium zirconate titanate simultaneously by the sol–gel method to fabricate (1− x )BaZr 0.2 Ti 0.8 O 3 − x Bi 0.5 Na 0.5 TiO 3 ((1− x )BZT− x NBT) amorphous films, researching the impact of amorphous phase and NBT levels on microstructure, energy storage, and dielectric properties of the films systematically. This material can generate a giant recoverable energy density of 86.35 J cm −3 and a great energy efficiency of 89.2% when x = 0.10, showing great thermal stability in energy storage property and dielectric property at 20–200 °C and excellent cycling reliability up to 10 5 cycles, which indicate the potential of 0.9BZT–0.1NBT film in the energy storage field. More importantly, there is no research on BZT-NBT films in the published literatures up to now. This work verifies the feasibility of this system in energy storage films and provides a new avenue to design lead-free dielectric materials.
研究领域:
材料科学
·
能源工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2020
·
IF 4.495
Jiawei Zhang,Jian Wang,Dandan Gao,Huan Liu,Jiyang Xie,Wanbiao Hu
Ceramic-based capacitors for energy storage devices require simultaneously high energy density and efficiency. Achieving high electric breakdown field based on linear dielectrics is crucial. Here, A-site Sm 3+ doped perovskite Ca 1-1.5 x Sm x □ 0.5 x TiO 3 ceramics with introduced A-site vacancies ( V A ) were prepared. All Ca 1-1.5 x Sm x □ 0.5 x TiO 3 ceramics crystallize in an orthorhombic structure, with lattice constants a , b , and c linearly decreased. As a result of Sm 3+ dopants and V A , the grain size decreased while the ceramics’ density was improved. The permittivity decreases from 176 ( x = 0) to 135 ( x = 0.1), but tan δ is effectively constrained (∼10 −4 ). What’s more, the dielectric breakdown strength is significantly improved from 429 kV/cm ( x = 0) to 547 kV/cm ( x = 0.1) with dielectric linearity is maintained. The optimum energy storage density of 2 J/cm 3 ( x = 0.02) with ultrahigh energy efficiency of over 93.7 % is achieved, which are superior to many existing linear dielectrics and relaxor ferroelectrics. This work confirms the energy-storage enhancement through chemical modifications and microstructural engineering.
研究领域:
材料科学
·
能源存储技术
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry C
·
2024
·Vol. 12
·期 22
·7956-7965
·
IF 5.7
Yuxuan Hou,Junjie Li,Ruowei Yin,Xiaopo Su,Yanjing Su,Lijie Qiao,Chuanbao Liu,Qian Li,Yang Bai
Development of microelectronic technology is highly desired to address chip power instability and micro-overheating in highly integrated devices utilizing a single material. For this purpose, we propose an efficient strategy by using a ferroelectric thin film to achieve the multifunction of chip power and thermal management. The Pb0.91La0.06Zr0.8Ti0.2O3 (PLZT) thin films undergo nucleation and growth in the (100) preferred orientation on the LaNiO3 bottom electrode during the layer-by-layer annealing process. The obtained chorogi-like structure with both lamellar and columnar nanocrystals results in a high breakdown strength of 4224 kV cm−1, accompanied by an exceptional recoverable energy storage density (Wrec) of 43.20 J cm−3. A large adiabatic temperature change (ΔT) of 27.25 K (@2000 kV cm−1) is obtained near the depolarization temperature, and the broad temperature span (80% ΔTmax) is larger than 50 °C. Moreover, PLZT thin films demonstrate a pyroelectric coefficient (π) of −145 μC cm−2 K−1 with high temperature stability, whose excellent thermal detection capability is confirmed by the infrared response measurement. Above all, the excellent energy storage, electrocaloric effect and pyroelectric properties of the PLZT thin films make them highly promising to inhibit the damage of abrupt current/voltage and uneven heat dissipation for applications in chip power and thermal management.
研究领域:
材料科学
·
电子工程
·
能源技术
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）