Advanced Energy Materials最新文献_第2页

Formamidinium In Situ Assistance for Buried Interfaces in Perovskite Solar Cells 钙钛矿太阳能电池埋藏界面的甲脒原位辅助

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-05-13 DOI: 10.1002/aenm.202501206

Dongliang Bai, Haoxu Wang, Shaoan Yang, Lianjie Duan, Yixuan Li, Xuejie Zhu, Shengzhong (Frank) Liu, Dong Yang

{"title":"Formamidinium In Situ Assistance for Buried Interfaces in Perovskite Solar Cells","authors":"Dongliang Bai, Haoxu Wang, Shaoan Yang, Lianjie Duan, Yixuan Li, Xuejie Zhu, Shengzhong (Frank) Liu, Dong Yang","doi":"10.1002/aenm.202501206","DOIUrl":"https://doi.org/10.1002/aenm.202501206","url":null,"abstract":"Defects at the buried interface and interfacial energy misalignment are critical challenges in perovskite solar cells (PSCs), causing severe carrier nonradiative recombination and introducing degradation centers that limit the device performance. In particular, issues such as void formation, poor adhesion, and interfacial defects at the buried interface compromise both efficiency and durability of PSCs. To address these challenges, a formamidinium-based in situ coordination (F-ISS) strategy is proposed to optimize the buried interface in normal-structure PSCs. By incorporating various formamidinium-based materials (FAI, FABr, and FACl), the F-ISS approach effectively reduces interfacial defects, mitigates nanoparticle aggregation, enhances the electrical and morphological uniformity of electron transport layer (ETL), and improves energy level alignment. The F-ISS-incorporation ETL exhibits improved surface smoothness, reduced trap density, and stronger interfacial adhesion, leading to superior quality of buried interface. These enhancements result in superior device performance, with normal-structure device achieving an efficiency of 25.61%, surpassing control device with efficiency of 23.43%. Additionally, the PCE of a mini-module with an active area of 18.55 cm2 achieved 21.72%, surpassing control device with efficiency of 19.76%. Moreover, the F-ISS strategy significantly boosts device stability, retaining over 80% of the initial efficiency after 1000 h of continuous illumination at maximum power point testing. These findings establish the F-ISS strategy as a promising solution for addressing the inherent challenges of the buried interface in perovskite photovoltaics.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"43 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143945622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Photo-Assisted Liquid Organic Cathode with Ultralow Resistance and High Diffusion Coefficient for Membrane-Free Aqueous Zinc-Ion Battery 无膜锌离子水电池用超低阻高扩散系数光辅助液体有机阴极

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-05-13 DOI: 10.1002/aenm.202501115

Houliang Sun, Zaka Ullah, Ledi Chen, Wanting Li, Hengfei Chen, Xiaowei Guan, Xiaowei An, Mingliang Chen, Liwei Liu, Qi Li

{"title":"Photo-Assisted Liquid Organic Cathode with Ultralow Resistance and High Diffusion Coefficient for Membrane-Free Aqueous Zinc-Ion Battery","authors":"Houliang Sun, Zaka Ullah, Ledi Chen, Wanting Li, Hengfei Chen, Xiaowei Guan, Xiaowei An, Mingliang Chen, Liwei Liu, Qi Li","doi":"10.1002/aenm.202501115","DOIUrl":"https://doi.org/10.1002/aenm.202501115","url":null,"abstract":"Photo-assisted battery electrodes typically rely on solid-state metal-ion systems, which face challenges such as low wettability and poor electrode kinetics, limiting their performance. This work introduces a significant breakthrough in photo-assisted liquid battery technology by developing an organic liquid cathode based on azobenzene compounds dissolved in high-polarity ether solvents. The bifunctional electrode integrates photoelectric conversion and energy storage capabilities, enabling efficient electron transfer under light illumination. Experimental results demonstrate that the liquid electrode exhibits a 62.6% higher discharge capacity under light compared to dark conditions. Additionally, the charge transfer resistance is reduced to 0.14% of that in solid-state counterparts, while the diffusion coefficient increases by 18.62 times under dark conditions. Upon illumination, the resistance is further reduced, and the diffusion coefficient is significantly enhanced, accompanied by a notable increase in pseudocapacitive contributions. These enhancements highlight the exceptional photo-enhanced performance of the liquid electrode. By overcoming the limitations of traditional solid-state systems, this innovation paves the way for next-generation energy storage solutions with superior efficiency and multifunctionality, offering promising applications in advanced energy technologies.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"17 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143945625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An In Situ Polymerized Solid-State Electrolyte for Uniform Lithium Deposition via the Piezoelectric Effects 利用压电效应制备均匀锂沉积的原位聚合固态电解质

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-05-13 DOI: 10.1002/aenm.202501379

Haoyu Gao, Yiming Zhou, Ke Wang, Baiheng Li, Shengbo Wang, Wei Li, Jianwei Nai, Yujing Liu, Yao Wang, Shihui Zou, Huadong Yuan, Xinyong Tao, Jianmin Luo

{"title":"An In Situ Polymerized Solid-State Electrolyte for Uniform Lithium Deposition via the Piezoelectric Effects","authors":"Haoyu Gao, Yiming Zhou, Ke Wang, Baiheng Li, Shengbo Wang, Wei Li, Jianwei Nai, Yujing Liu, Yao Wang, Shihui Zou, Huadong Yuan, Xinyong Tao, Jianmin Luo","doi":"10.1002/aenm.202501379","DOIUrl":"https://doi.org/10.1002/aenm.202501379","url":null,"abstract":"Solid-state lithium metal batteries (SLMBs) have broad application prospects due to their inherently high energy density and safety. Among solid-state electrolytes (SEs), in situ polymerized solid-state electrolytes have the advantages of intimate interfacial contact and significant reduction in interface resistance, but they can still suffer from uncontrolled growth of lithium dendrites that compromises the long-term stability and cyclability of the batteries. Here, a PDOL@ZnO/PVDF-HFP SE consisting of a poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) fiber separator modified with zinc oxide (ZnO) nanowires is reported as a skeleton and in situ polymerized poly (1,3-dioxolane) (PDOL) as the filler. The piezoelectrically generated electric field by the extrusion of ZnO nanowires during Li plating reduces localized Li+ concentration and promotes uniform Li+ flux, effectively inhibiting the growth of lithium dendrites. As a result, LiFePO4/Li cell based on the PDOL@ZnO/PVDF-HFP SE shows long and stable cycle life at 30 °C with a reversible capacity of 144.0 mAh g−1 for 600 cycles at 0.2 C and 91.3% capacity retention. Remarkably, LiFePO4/Li pouch cells can be stably cycled for 200 cycles. The proposed in situ polymerized solid-state electrolyte with piezoelectric effects opens new perspectives to guide the practical application of high-performance solid-state batteries.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"27 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143945627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unique Na5−xSbSe Phase Enables High-Rate Performance of Sb2Se3 Anodes in Na-Ion Batteries 独特的Na5−xSbSe相位使钠离子电池中Sb2Se3阳极具有高速率性能

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-05-13 DOI: 10.1002/aenm.202501433

Amalie Skurtveit, Andrew Pastusic, Anders Brennhagen, Faduma M. Maddar, Chris Erik Mohn, Abhoy Karmakar, Christopher A. O'Keefe, Ivana Hasa, Carmen Cavallo, Bjørnar Arstad, Helmer Fjellvåg, David S. Wragg, Alexey Y. Koposov

{"title":"Unique Na5−xSbSe Phase Enables High-Rate Performance of Sb2Se3 Anodes in Na-Ion Batteries","authors":"Amalie Skurtveit, Andrew Pastusic, Anders Brennhagen, Faduma M. Maddar, Chris Erik Mohn, Abhoy Karmakar, Christopher A. O'Keefe, Ivana Hasa, Carmen Cavallo, Bjørnar Arstad, Helmer Fjellvåg, David S. Wragg, Alexey Y. Koposov","doi":"10.1002/aenm.202501433","DOIUrl":"https://doi.org/10.1002/aenm.202501433","url":null,"abstract":"Na-ion batteries (NIBs) need new anode materials to improve energy density. Metal chalcogenides, such as Sb2Se3, represent a promising alternative to commonly used hard carbon materials, demonstrating high-rate performance up to 5 A g−1 with minimal capacity losses. However, Sb2Se3 is believed to operate under the conversion/alloying mechanism, typically linked with large structural transformations and volumetric changes—quite contrary to its performance. Herein, by combining multiple operando techniques and atomistic simulations, a new fully sodiated phase, Na5−xSbSe, is unambiguously revealed as the origin of the high-rate performance of Sb2Se3. Na5−xSbSe is stable within 0.01–0.80 V versus Na/Na+ and crystallizes in I4/mmm. The remarkable structural flexibility of Na5SbSe to changes in Na-content allows the anode to be (de)sodiated with minimal volumetric changes (≈3.4%). This unique “breathing effect” is intimately linked to high inherent vacancy concentration, disordered, and structurally flexible anion sublattice, providing a stable framework for fast Na diffusion, contributing to the fast-charging properties of Sb2Se3. The study showcases the power of operando methods for discovering new phases that are hidden in the mechanistic paths of well-studied reactions and underlines the intertwined nature of various characterization methods assisted by atomistic insights for a comprehensive understanding of complex (de)sodiation mechanisms.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"8 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143945624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tailoring the First/Second Coordination Layer of FeNi Single Atoms with Nucleophile Atoms to Boost Oxygen Electrocatalysis for Zinc-Air Batteries 用亲核试剂修饰FeNi单原子的第一/第二配位层以促进锌-空气电池的氧电催化

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-05-13 DOI: 10.1002/aenm.202501091

Kang Yu, Jian Qin, Heng Zhang, Shenglong Zhang, Yanyan Cao, Chong Xie, Huijuan Yang, Wei Xiao, Wenbin Li, Gaini Zhang, Yangyang Luo, Guiqiang Cao, Jingjing Wang, Xifei Li

{"title":"Tailoring the First/Second Coordination Layer of FeNi Single Atoms with Nucleophile Atoms to Boost Oxygen Electrocatalysis for Zinc-Air Batteries","authors":"Kang Yu, Jian Qin, Heng Zhang, Shenglong Zhang, Yanyan Cao, Chong Xie, Huijuan Yang, Wei Xiao, Wenbin Li, Gaini Zhang, Yangyang Luo, Guiqiang Cao, Jingjing Wang, Xifei Li","doi":"10.1002/aenm.202501091","DOIUrl":"https://doi.org/10.1002/aenm.202501091","url":null,"abstract":"Single-atom catalysts (SACs) have been increasingly explored to boost ORR/OER kinetics in zinc-air batteries (ZABs). Accurate construction of coordination environments for metal central atoms is the key to maximizing their catalytic performance. Here, a meticulous first/second coordination layer co-tuning strategy is proposed to construct a diatomic FeNi-S/N-B/C configuration with a high coordination number. Theoretical simulations and experiments have together demonstrated that the introduction of S in the first coordination layer breaks the symmetric configuration, resulting in faster ORR kinetics. Besides, the establishment of B-N pi coordination bonds has been shown to enhance the carrier concentration whilst facilitating the ingress of B into the second shell layer of the central metal atoms. It results in exacerbated electron delocalization of catalysts toward superior ORR and OER kinetics, as well as allowing for the immobilization of the central metal atoms under the attack of the oxygen electrocatalytic intermediates. The ZAB using FeNi-S/N-B/C catalysts exhibits high peak power density (246 mW cm−2), long cycle life (>650 h) and the potential to operate in extreme environments (−25 °C) with wearable energy supply. The first/second coordination layer co-tuning strategy proposed in this study will provide new ideas for the design of SACs.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"76 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143940062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pore Sieving and Surficial Charge-Driven Desolvation for High Spatial Charge Density Carbon Cathodes in Zinc-Ion Hybrid Capacitors 锌离子混合电容器中高空间电荷密度碳阴极的孔筛和表面电荷驱动脱溶

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-05-13 DOI: 10.1002/aenm.202501358

Guangjie Yang, Qian Zhang, Zhenlu Liu, Jian Song, Zhenye Yin, Yixuan Zhao, Shaohua Jiang, Jingquan Han, Xue Li, Haoqi Yang, Shuijian He, Zengxia Pei

{"title":"Pore Sieving and Surficial Charge-Driven Desolvation for High Spatial Charge Density Carbon Cathodes in Zinc-Ion Hybrid Capacitors","authors":"Guangjie Yang, Qian Zhang, Zhenlu Liu, Jian Song, Zhenye Yin, Yixuan Zhao, Shaohua Jiang, Jingquan Han, Xue Li, Haoqi Yang, Shuijian He, Zengxia Pei","doi":"10.1002/aenm.202501358","DOIUrl":"https://doi.org/10.1002/aenm.202501358","url":null,"abstract":"Aqueous zinc-ion hybrid capacitors (ZIHCs) have emerged as a sustainable energy storage technology. However, the slow diffusion of large solvated Zn2+ within nanopores and the restriction on the electric double layer (EDL) thickness limit the spatial charge density in carbon electrodes. Herein, multi-channel porous carbon nanofibers (MC-PCNFs) are designed with customized porosity and high-charge-density interfaces to facilitate rapid [Zn(H2O)6]2+ desolvation and compact EDL formation. The designed hierarchical hollow structure maximizes ion accessibility, while precisely tuned 1.07 nm pores enable direct [Zn(H2O)6]2+ adsorption onto catalytic desolvation sites, significantly reducing the desolvation energy barrier. The resulting ZIHCs achieve a high reversible capacity of 221 mAh g−1, a battery-level energy density of 170.2 Wh kg−1 (based on cathode materials), outstanding long-term cycling stability (>90,000 cycles, 98.7% retention), and practically high areal capacities. Through in/ex situ spectroscopy, theoretical calculations, kinetic analysis, and electrochemical quartz crystal microbalance (EQCM) analysis, the charge storage and interfacial desolvation mechanisms are comprehensively elucidated. This study provides a scalable and effective strategy for catalytic desolvation and high spatial charge density engineering, paving the way for next-generation high-energy, long-cycle-life ZIHCs.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"4 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143945702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Novel Zwitterionic Polyurethane-in-Salt Electrolytes with High Ion Conductivity, Elasticity, and Adhesion for High-Performance Solid-State Lithium Metal Batteries 高性能固态锂金属电池用新型两性离子聚氨酯盐电解质，具有高离子导电性、弹性和附着力

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-05-12 DOI: 10.1002/aenm.202405676

Kun Wang, Volodymyr Koverga, Namrata Maslekar, Fukang Wu, Robert Kuphl, Xingyi Lyu, Piyush Deshpande, Hanzeng Guo, Hyang Seol, Wade Degraff, Jennifer L. Schaefer, Chengcheng Fang, Tao Li, Gang Cheng, Anh T. Ngo, Sangil Kim

{"title":"Novel Zwitterionic Polyurethane-in-Salt Electrolytes with High Ion Conductivity, Elasticity, and Adhesion for High-Performance Solid-State Lithium Metal Batteries","authors":"Kun Wang, Volodymyr Koverga, Namrata Maslekar, Fukang Wu, Robert Kuphl, Xingyi Lyu, Piyush Deshpande, Hanzeng Guo, Hyang Seol, Wade Degraff, Jennifer L. Schaefer, Chengcheng Fang, Tao Li, Gang Cheng, Anh T. Ngo, Sangil Kim","doi":"10.1002/aenm.202405676","DOIUrl":"https://doi.org/10.1002/aenm.202405676","url":null,"abstract":"This study presents a novel polymer-in-salt (PIS) zwitterionic polyurethane-based solid polymer electrolyte (zPU-SPE) that offers high ionic conductivity, strong interaction with electrodes, and excellent mechanical and electrochemical stabilities, making it promising for high-performance all solid-state lithium batteries (ASSLBs). The zPU-SPE exhibits remarkable lithium-ion (Li+) conductivity (3.7 × 10⁻⁴ S cm−1 at 25 °C), enabled by exceptionally high salt loading of up to 90 wt.% (12.6 molar ratio of Li salt to polymer unit) without phase separation. It addresses the limitations of conventional SPEs by combining high ionic conductivity with a Li+ transference number of 0.44, achieved through the incorporation of zwitterionic groups that enhance ion dissociation and transport. The high surface energy (338.4 J m−2) and elasticity ensure excellent adhesion to Li anodes, reducing interfacial resistance and ensuring uniform Li+ flux. When tested in Li||zPU||LiFePO₄ and Li||zPU||S/C cells, the zPU-SPE demonstrated remarkable cycling stability, retaining 76% capacity after 2000 cycles with the LiFePO4 cathode, and achieving 84% capacity retention after 300 cycles with the S/C cathode. Molecular simulations and a range of experimental characterizations confirm the superior structural organization of the zPU matrix, contributing to its outstanding electrochemical performance. The findings strongly suggest that zPU-SPE is a promising candidate for next-generation ASSLBs.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"32 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143933202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Water-Thermal Self-Cycling Thermoelectric Hydrogel for Continuous Energy Harvesting from Body Heat 用于从人体热量中连续收集能量的水热自循环热电水凝胶

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-05-12 DOI: 10.1002/aenm.202500540

Lin Li, Qianwen Gao, Jie Miao, Nan He, Qian Zhang, Jun Zhang, Haonan Wang, Dawei Tang

{"title":"Water-Thermal Self-Cycling Thermoelectric Hydrogel for Continuous Energy Harvesting from Body Heat","authors":"Lin Li, Qianwen Gao, Jie Miao, Nan He, Qian Zhang, Jun Zhang, Haonan Wang, Dawei Tang","doi":"10.1002/aenm.202500540","DOIUrl":"https://doi.org/10.1002/aenm.202500540","url":null,"abstract":"The ability to continuously harvest energy from the human body has immense potential for powering wearable devices and biomedical systems, yet current thermoelectric hydrogels are constrained by rapid dehydration, limiting operational lifespans to less than 120 m and achieving temperature gradients of only ≈5 °C. Here, a self-cycling thermoelectric hydrogel is presented that addresses these challenges by autonomously regulating water-thermal cycling. This strategy achieves a maximum temperature gradient of 13 °C—more than 2.6 times the state-of-the-art—and maintains stable thermoelectric output for over 1500 min, the longest lifespan reported for such materials. Additionally, the hydrogel fully recovers hydration within 5 h, enabling robust reusability. Mechanistic studies reveal that optimized ionic interactions enhance thermal diffusion and elevate the Seebeck coefficient to 4.1 mV K−1. This study introduces a scalable design for wearable thermoelectric materials, paving the way for advancements in health monitoring, environmental sensing, and wearable electronics.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"28 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143933208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Suppressed High-Temperature Conduction Losses for Energy Storage of Dielectric Composites by Fillers with Polymorphic Polar Nanoregions 多晶极性纳米区填料抑制介电复合材料储能的高温传导损耗

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-05-12 DOI: 10.1002/aenm.202500788

Fan Wang, He Qi, Hang Luo, Liang Chen, Guanghu He, Yuting Wan, Deng Hu, Xi Chen, Weifeng Wei, Dou Zhang

{"title":"Suppressed High-Temperature Conduction Losses for Energy Storage of Dielectric Composites by Fillers with Polymorphic Polar Nanoregions","authors":"Fan Wang, He Qi, Hang Luo, Liang Chen, Guanghu He, Yuting Wan, Deng Hu, Xi Chen, Weifeng Wei, Dou Zhang","doi":"10.1002/aenm.202500788","DOIUrl":"https://doi.org/10.1002/aenm.202500788","url":null,"abstract":"Dielectrics with high service temperatures and improved energy storage density are urgently in the fields of new energy vehicles and power electronics. However, dielectrics usually suffer from increased losses and leakage currents at high temperatures, resulting in a rapid decline in energy density and efficiency. In this work, the polyetherimide (PEI) composites incorporated with ultra-low loading of relaxor ferroelectric filler 0.85(0.8BaTiO3-0.2(Bi0.5Na0.5)TiO3)-0.15CaZrO3 (BT-BNT-CZ) with polymorphic polar nanoregions (PNRs) are prepared, of which the high-temperature loss is effectively suppressed and the polarization is enhanced. The coexistence of R-T phase PNRs of BT-BNT-CZ can effectively reduce residual polarization, and improve the temperature stability of the composites. Furthermore, the high electron affinity (3.8 eV) of BT-BNT-CZ acts as a charge trap, reducing carrier mobility and leakage current density in the composites. As result, 0.5 wt.% BT-BNT-CZ/PEI composite reduces the leakage current density by orders of magnitude compared to pure PEI, improving the energy density to 3.8 J cm−3 with 90% efficiency at 200 °C. It also shows outstanding cycling stability, even after 106 charge–discharge cycles at 200 °C and 300 MV m−1, the efficiency maintains over 97%. This work offers a scalable pathway for developing composite dielectrics with satisfactory capacitive energy storage performance at high temperatures.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"2 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143933203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Artificial Intelligence-Assisted Ultrafast High-Throughput Screening of High-Entropy Hydrogen Evolution Reaction Catalysts 人工智能辅助下高熵析氢反应催化剂的超快高通量筛选

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-05-12 DOI: 10.1002/aenm.202500744

Ziqi Fu, Pengfei Huang, Xiaoyang Wang, Wei-Di Liu, Lingchang Kong, Kang Chen, Jinyang Li, Yanan Chen

{"title":"Artificial Intelligence-Assisted Ultrafast High-Throughput Screening of High-Entropy Hydrogen Evolution Reaction Catalysts","authors":"Ziqi Fu, Pengfei Huang, Xiaoyang Wang, Wei-Di Liu, Lingchang Kong, Kang Chen, Jinyang Li, Yanan Chen","doi":"10.1002/aenm.202500744","DOIUrl":"https://doi.org/10.1002/aenm.202500744","url":null,"abstract":"The development of high-entropy alloy (HEA) catalysts is hindered by the “combinatorial explosion” challenge inherent to their complex component design. This study presents an artificial intelligence-assisted high-throughput framework that synergizes large language models (LLMs) for literature mining and genetic algorithms (GAs) for iterative optimization to overcome this challenge. Here, LLMs analyzed 14 242 publications to identify 10 critical hydrogen evolution reaction (HER)-active elements (Fe, Co, Ni, Pt, etc.), narrowing the candidate pool to 126 Pt-based HEA combinations. GA-driven experiment optimizes this subset via ultrafast high-throughput material synthesis and screening using ultrafast high-temperature thermal shock technology, achieving convergence in 4 iterations (24 samples) for 60% reduction of the versus conventional GA approaches. The optimal IrCuNiPdPt/C catalyst exhibits the record-low HER overpotentials of 25.5 and 119 mV at 10 and 100 mA cm⁻2, surpassing commercial Pt/C by 49% and 18%, respectively, which demonstrates 300-h stability with negligible decay. This work establishes a paradigm-shifting strategy bridging computational intelligence and autonomous experiment, that slashes the discovery time from millennia to hours, enabling rational design of multi-component catalysts for sustainable energy applications.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"124 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143933398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0