JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2021
·Vol. 32
·期 16
·21164-21177
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IF 2.478
Liu Jikang,Ding Yuqing,Li Chongyang,Bai Wangfeng,Zheng Peng,Zhang Jingji,Zhai Jiwei
Although high-applied electric field can usually generate high energy storage performance (ESP) for most dielectric materials, the presence of high risk at high electric field and large cost of insulation technology are the main obstacles that critically restrict the actual applications of dielectric ceramics in the energy storage area. Herein, simultaneously realizing high energy storage density ( W rec )/efficiency ( η ) and charge–discharge performance under low working electric fields is proposed in relaxor ferroelectrics via combining the non-ergodic and ergodic relaxor state (NR-ER) and dominated ER features. Based on this idea, a high W rec (2.03 J/cm 3 ) and favorable η (72%), together with excellent frequency dependence (0.5–100 Hz), moderate temperature stability (20–140 °C, and satisfactory fatigue endurance (10 0 –10 5 cycles), can be simultaneously achieved in 0.3[0.955(Bi 0.5 Na 0.5 )TiO 3 –0.045Ba(Al 0.5 Ta 0.5 )O 3 ]–0.7Sr 0.3 (Bi 0.7 Na 0.67 Li 0.03 ) 0.5 TiO 3 (BNT–BAT–0.7SBNLT) ceramic at a low electric field of 200 kV/cm. Moreover, the indicated ceramics also possess great charge–discharge performance at 140 kV/cm, featured by a large power density P D of 46.2 MW/cm 3 , discharge energy density W d of 0.62 J/cm 3 , fast charge-discharge rate t 0.9 of 210 ns, and excellent cycling reliability. Thus, the designed BNT–BAT–0.7SBNLT ceramic possesses superior comprehensive ESP under low electric field, which has broad prospects in practical high-power ceramic capacitors applications.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
Journal of Energy Storage
·
2025
·
IF 9.8
Lingling Wu,Bin He,Yonggang Shuai,Wuwei Feng,Weiping Gong,He Qi,Yuqin Liu
In response to the urgent need for efficient and reliable energy storage solutions, this study investigates the synergistic integration of high-entropy and superparaelectric engineering in Bi 0.5 Na 0.5 TiO 3 -K 0.5 Na 0.5 NbO 3 (BNT-KNN) ceramics, thereby achieving superior comprehensive energy storage performance in moderate electric fields. With the incorporation of Sr(Sc 0.5 Ta 0.5 )O 3 (SST), the BNT-0.2KNN-0.2SST demonstrates a high recoverable energy density ( W rec > 7 J/cm 3 ) and efficiency ( η > 95 %) at 420 kV/cm and the BNT-0.3KNN-0.15SST achieves W rec ~ 8 J/ cm 3 and η > 91 % at 500 kV/cm. The optimized ceramics achieve excellent comprehensive energy storage performance, exceptional high-temperature stability (20–240 °C) and fatigue resistance (≥10 6 cycles) under moderate electric fields (300–500 kV/cm) synchronously. The synergistic combination of high-entropy design and superparaelectric state regulation can effectively suppress the drastic fluctuations of the permittivity and the thermally induced phase transitions, thereby maintaining excellent performance across a broader temperature range and significantly enhancing the cyclic life of BNT-based ceramics through the reduction of defect generation and aggregation. The synergistic combination of these properties suggests promising applicability in next-generation capacitor devices, especially for energy storage applications requiring reliable performance in extreme operational environments.
研究领域:
材料科学
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储能技术
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陶瓷工程
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介电与电磁学
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固态物理
✓ 已验证
产品关联
DOI
高影响因子
ACTA MATERIALIA
·
2025
·
IF 9.3
Hao Zhang,Tengfei Hu,He Qi,Huifen Yu,Lisha Li,Jie Wu,Liang Chen,Jun Chen
Tungsten bronze, the second largest ferroelectric family after perovskite, has been extensively studied in the field of dielectric energy storage. However, tungsten bronze ceramics, especially the filled type, face a severe challenge of reaching high energy density and high efficiency, making it difficult to match the energy storage performance of perovskites. In this work, we propose high-entropy strategy in filled type tungsten bronze ceramics to meticulously engineer dipole glass, manifesting as completely different polarization magnitudes and angles between adjacent dipoles. Combining the apparent enhancement of breakdown strength and the significant reduction of polarization hysteresis loss driven by highly disordered dipole glass, an impressive recoverable energy density of 8.9 J/cm 3 with an ultrahigh efficiency of 91 % can be achieved in the high-entropy tetragonal filled tungsten bronze ceramics, endowing tungsten bronzes with considerable energy storage competitiveness compared to perovskites. This work provides an effective avenue to develop and expand new high-performance energy storage materials.
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产品关联
DOI
高影响因子
Science China-Technological Sciences
·
2021
·Vol. 64
·期 10
·2142-2152
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IF 3.572
Song Chao,Liu XiangLei,Xuan YiMin,Zheng HangBin,Gao Ke,Teng Liang,Da Yun,Li Chuan,Li YongLiang,Ding YuLong
Calcium carbonate is promising thermochemical heat storage material for next-generation solar power systems due to its high energy storage density, low cost, and high operation temperature. Researchers have tried to improve energy storage performances of calcium carbonate recently, but most researches focus on powders, which are not suitable for scalable applications. Here, novel granular porous calcium carbonate particles with very high solar absorptance, energy storage density, abrasive resistances, and energy storage rate are proposed for direct solar thermochemical heat storage. The average solar absorptance is improved by 234% compared with ordinary particles. Both cycle stability and abrasive resistances are excellent with almost no decay of energy storage density over 25 cycles nor apparent particle weight loss over 24 h of continuous operation insides a planetary ball mill. In addition, the decomposition temperature is reduced by 2.8%–5.6% while the reaction rate of heat storage is enhanced by 80%–205% depending on the CO 2 partial pressure. The decomposition process of doped granular porous CaCO 3 particles is found to involve three overlapping processes. This work provides new routes to achieve scalable direct solar thermochemical heat storage for next-generation high-temperature solar power systems.
研究领域:
材料科学
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能源工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2019
·
IF 4.175
Wanying Liu,Yabo Zhu,Yuting Cui,Xiaokuan Ban,Qian Xu,Xinxi Zhang
Ni 2 P and black phosphorus (BP) exhibit their respectively excellent performance in capacitance. Flake material BP is a good phosphorus (P) source candidate for the synthesis of Ni 2 P, and is also a good carrier that can contribute to the good dispersion of Ni 2 P particles. Herein, BP flakes were prepared first by wet milling method and Ni 2 P/BP composites with different reactant mole ratio for nickel (Ni) to P were prepared by a facial solvothermal method. The electrochemical property of milled BP flakes and Ni 2 P/BP composites were investigated by cyclic voltammetry , charge/discharge and electrochemical impedance spectroscopy . It was found that the Ni 2 P/BP composite, with an appropriate reactant mole ratio for Ni to P, had the high capacity of 1215 F/g at the current density of 1 A/g and the remained stable capacity of 590 F/g after 1000 circle at the current density of 2 A/g, exhibiting good capacitance energy storage performance.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2021
·
IF 8.198
Changhai Zhang,Tongqin Zhang,Mengjia Feng,Yang Cui,Tiandong Zhang,Yongquan Zhang,Yu Feng,Yue Zhang,Qingguo Chi,Xianli Liu
The increasing energy problem and the demand of environmental protection raise higher requirements for the development of clean energy. Dielectric capacitors have attracted lots of attention as a supporting facility of energy storage and conversion for clean energy, but their further development is limited by the low energy storage performance. In this paper, all-organic composite dielectrics were reported, with a poly(methyl methacrylate) (PMMA)/poly(vinylidene fluoride) (PVDF) composite dielectric with different mixing ratios as the matrix and the organic molecular semiconductor with high electron affinity [6,6]-phenyl C61 butyrate acid methyl ester (abbreviated as PCBM) as fillers. The related test results show that with the increase in the doping contents of PCBM, the energy storage density increases obviously. When the doping content of PCBM is 0.9 wt %, the PMMA/PVDF-based organic composite dielectric possesses an optimal breakdown field of 685.67 kV mm–1, accompanying excellent energy storage performances (Ue, ∼21.89 J cm–3; η, ∼70.34%). The PVDF blended with PMMA strategy not only restrains the ferroelectric polarization loss of PVDF but also improves the breakdown strength of the polymer. More importantly, the polarization and breakdown strength of the composites can be synergistically enhanced by filling with PCBM fillers.
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 Electronic Materials
·
2022
·
IF 4.494
Rui Fang,Ruoxin Xu,Linting Zhang,Xuelei Sun,Yan Wang,Xiaoting Zhang,Jingru Zhang,Jiepu Zhang,Zhi’ang Zhang,Chunxue Zhai,Bin Cui,Lili Zhao
Flexible dielectric energy storage capacitors have important application potentials in pulsed power systems. However, low energy storage density has always been an obstacle to practical applications because it is difficult to increase the dielectric constant of flexible dielectrics while reducing dielectric loss. In this study, a strategy is proposed to solve this problem. As the filler of polyvinylidene fluoride (PVDF), a special inorganic core–shell structure is constructed. The core–shell filler structure includes a donor Y-doped BST core and acceptor Mn-doped BST shell, wrapping ZrO2 as the outermost layer (Y@M-BST@ZrO2). Through this design, the simultaneous optimization of dielectric constant and dielectric loss is finally realized in the BST/PVDF composites. When an electric field is applied, the separation of electrons and holes formed in the core–shell fillers Y@M-BST@ZrO2 enhances the composite polarization and dielectric constant of Y@M-BST@ZrO2/PVDF and meanwhile reduces its dielectric loss at 1 kHz; therefore, the composite energy storage properties are significantly improved in comparison with the sample BST@ZrO2/PVDF. In experiments, the Y@M3-BST@ZrO2/PVDF composite film has a dielectric constant of 20.9, a dielectric loss of 0.024, and an energy storage density of 7.555 J/cm3 at 600 kV/cm, which is 74.6% higher than that of BST/PVDF composite film. It reaches 2.1 times the energy storage density of pure PVDF film. This study shows that the formation of a polarization structure caused by a positioning doping in core–shell structural fillers may provide a path for functional dielectrics of high-energy-density capacitors.
研究领域:
材料科学
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电气工程
·
复合材料
✓ 已验证
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Jiangheng Jia,Song Ding,Yiwei Wang,Yangrui Liu,Shengchun Shen,Lei Shi,Dongsheng Song,Yuewei Yin,Xiaoguang Li
Compared with traditional ferroelectrics, relaxor ferroelectrics (RFEs) exhibit slim hysteresis loops and big dielectric constants, which are favorable for capacitive energy storage applications. Herein, organic RFE poly(vinylidene chloride) (PVDC) films with concurrently ultrahigh recoverable energy-storage density ( U rec ), low energy loss, as well as excellent cyclic charging–discharging stability are achieved by thermal annealing approach. The annealed PVDC displays an extremely high U rec of ≈11.6 J cm −3 , while maintaining a charge–discharge efficiency ( η ) of above 90%, which is better than the performance of currently state-of-the-art commercial capacitors based on dielectric polymers, such as biaxially-oriented polypropylene (BOPP) and polyethylene terephthalate (PET) films. Moreover, stable performance with U rec of ≈1 J cm −3 under 200 MV m −1 with η of ≈95% can be maintained over a charge–discharge cycling up to 100 000 cycles. The excellent performance of RFE PVDC films can be attributed to the formation of larger size grains after thermal annealing, which act as physical crosslinking points to effectively enhance mechanical strength and suppress carrier transport within the polymer films. This work offers an effective and easy-processing method for preparing RFE PVDC films with great potential for practical applications in modern power systems and electric devices.
研究领域:
材料科学
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应用物理学
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高分子科学
·
储能技术
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Ruijun Bai,Miaoxin Zhang,Xin Zhang,Shijing Zhao,Weifeng Chen,Ning Chen,Puguang Ji,Mirtemir Sh Kurbanov,Hua Wang,Huiyang Gou,Gongkai Wang
Transparent flexible supercapacitors (TFSCs) are a tantalizing power supplier for future transparent flexible electronics. However, their energy density is far behind a practical level while maintaining high transparency. We report here a transparent flexible potassium-ion microcapacitor, and its high energy density (15.5 μWh cm–2) roots in the battery-supercapacitor hybrid storage mechanism and much enlarged working voltage (3 V), outperforming the state-of-the-art TFSC, which is generally based on an aqueous electrolyte and an asymmetric pseudocapacitive mechanism. From an electrode material perspective, a multidimensional topotactic host composite anode is designed in which the component not only performs energy storage by synchronous and reversible uptake of potassium ions and electrons into its host structure, but also mutually compensates individual weakness in functional and structural aspects, efficiently constructing a three-dimensional potassium-ion diffusion and electron transport system. This conceptual exhibition provides design principles at material and device levels for high-performance TFSCs.
研究领域:
材料科学
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能源存储技术
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Ling Bai,Hao Hong,Jingjing Nie,Zhaoyu Ma,Binyang Du
Lithium‑sulfur (Li S) batteries have emerged as a promising next-generation energy storage technology owing to their exceptional theoretical specific capacity (1675 mAh g −1 ), high energy density (2600 Wh kg −1 ), natural abundance of sulfur, and environmental benignity. However, the practical implementation of Li S batteries faces several critical challenges, most notably the shuttle effect of soluble lithium polysulfides (LiPSs), which severely compromises cycling stability. Here, a P(MEO 2 MA- co -OEGMA) microgel-based polymeric binder (PMO) was successfully constructed via surfactant-free emulsion polymerization. Comprehensive experimental characterization coupled with theoretical calculations reveal that the PMO binder possesses superior adhesive properties, ensuring robust electrode cohesion throughout prolonged cycling. Furthermore, the three-dimensional network structure of PMO binder facilitates strong chemical interactions with LiPSs through Li O and Li N bonds, which mitigates active material loss. As a result, Li S batteries employing the PMO binder exhibit excellent electrochemical performance, delivering an initial discharge capacity of 920.8 mAh g −1 at 1C and retaining a reversible capacity of 576.6 mAh g −1 after 500 cycles, corresponding to an ultralow capacity fading rate of merely 0.074 % per cycle. This work emphasizes the essential role of microgel binder for addressing the cycling stability challenge plagued Li S batteries, providing significant implications for the development of microgel-based materials in advanced energy storage applications.
研究领域:
储能
·
高分子科学
·
电化学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2025
·Vol. 52
·期 1
·429-438
·
IF 5.6
Shuo Wang,Lida Tong,Xiaolong Zhang,Xiaoyan Zhang,Yaohang Gu,Xiwei Qi
Although high-power-density lead-free ceramic-based dielectric capacitors are considered promising candidates for energy storage applications, achieving a high recoverable energy density ( W rec > 5 J cm −3 ) typically requires the application of an external electric field ( E > 400 kV cm −1 ), which poses significant risks to the electrical insulation system. Therefore, the development of lead-free dielectric ceramics that exhibit high energy storage performance under moderate electric fields (300 < E < 500 kV cm −1 ) has become a critical research focus. In this study, a ferroelectric - antiferroelectric binary solid solution was constructed by incorporating the antiferroelectric material NaNbO 3 into Bi 0.2 Na 0.4 Ba 0.2 La 0.2 TiO 3 ceramics. Experimental results demonstrate that the incorporation of the antiferroelectric phase effectively reduces grain size, widens the band gap, and significantly enhances the relaxation behavior, thereby enabling a high maximum polarization ( P max ) and a low remnant polarization ( P r ) under moderate electric fields. Consequently, the 0.95Bi 0.2 Na 0.4 Ba 0.2 La 0.2 TiO 3 -0.05NaNbO 3 ceramic achieved an ultra-high W rec of 6.42 J cm −3 and an excellent energy storage efficiency of 89.4 % under a moderate electric field of 400 kV cm −1 , along with outstanding thermal and frequency stability. This work presents a promising strategy for developing dielectric materials with superior energy storage performance under moderate electric fields, aligning well with the requirements of advanced energy storage technologies.
研究领域:
材料科学
·
功能陶瓷
·
电介质物理
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能源存储
·
固态化学
✓ 已验证
产品关联
DOI
高影响因子
Materials
·
2018
·Vol. 11
·期 11
·2279
·
IF 2.467
Yefeng Feng,Cheng Peng,Qihuang Deng,Yandong Li,Jianbing Hu,Qin Wu
High discharged energy density and charge–discharge efficiency, in combination with high electric breakdown strength, maximum electric displacement and low residual displacement, are very difficult to simultaneously achieve in single-component polymer dielectrics. Plenty of researches have reported polymer based composite dielectrics filled with inorganic fillers, through complex surface modification of inorganic fillers to improve interface compatibility. In this work, a novel strategy of introducing environmentally-friendly biological polyester into fluoropolymer matrix has been presented to prepare all-organic polymer composites with desirable high energy storage properties by solution cast process (followed by annealing or stretching post-treatment), in order to simplify the preparation steps and lower the cost. Fluoropolymer with substantial ferroelectric domains (contributing to high dielectric response) as matrix and poly (3-hydroxybutyrate-co-3-hydroxyvalerate) with excellent linear polarization property (resulting in high breakdown strength) as filler were employed. By high-temperature annealing, the size of ferroelectric domains could be improved and interfacial air defects could be removed, leading to elevated high energy storage density and efficiency in composite. By mono-directional stretching, the ferroelectric domains and polyester could be regularly oriented along stretching direction, resulting in desired high energy storage performances as well. Besides, linear dielectric components could contribute to high efficiency from their strong rigidity restrain effect on ferroelectric component. This work might open up the way for a facile fabrication of promising all-organic composite dielectric films with high energy storage properties.Keywords:annealing;stretching;energy storage;all-organic;composite
研究领域:
材料科学
·
能源技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）