Energy & Environmental Materials最新文献

{"title":"Sustainable, Wearable, and Eco-Friendly Electronic Textiles","authors":"Marzia Dulal,&nbsp;Harsh Rajesh Mansukhlal Modha,&nbsp;Jingqi Liu,&nbsp;Md Rashedul Islam,&nbsp;Chris Carr,&nbsp;Tawfique Hasan,&nbsp;Robin Michael Statham Thorn,&nbsp;Shaila Afroj,&nbsp;Nazmul Karim","doi":"10.1002/eem2.12854","DOIUrl":"https://doi.org/10.1002/eem2.12854","url":null,"abstract":"<p>Wearable electronic textiles (e-textiles) with embedded electronics offer promising solutions for unobtrusive, real-time health monitoring, enhancing healthcare efficiency. However, their adoption is limited by performance and sustainability challenges in materials, manufacturing, and recycling. This study introduces a sustainable paradigm for the fabrication of fully inkjet-printed Smart, Wearable, and Eco-friendly Electronic Textiles (SWEET) with the first comprehensive assessments of the biodegradability and life cycle assessment (LCA). SWEET addresses existing limitations, enabling concurrent and continuous monitoring of human physiology, including skin surface temperature (at temperature coefficient of resistance, TCR value of ~−4.4% °C⁻¹) and heart rate (~74 beats per minute, bpm) separately and simultaneously like the industry gold standard, using consistent, versatile, and highly efficient inkjet-printed graphene and Poly (3,4-ethylenedioxythiophene): poly (styrene sulfonate) (PEDOT:PSS)-based wearable e-textiles. Demonstrations with a wearable garment on five human participants confirm the system's capability to monitor their electrocardiogram (ECG) signals and skin temperature. Such sustainable and biodegradable e-textiles decompose by ~48% in weight and lost ~98% strength over 4 months. Life cycle assessment (LCA) reveals that the graphene-based electrode has the lowest climate change impact of ~0.037 kg CO₂ eq, 40 times lower than reference electrodes. This approach addresses material and manufacturing challenges, while aligning with environmental responsibility, marking a significant leap forward in sustainable e-textile technology for personalized healthcare management.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 3","pages":""},"PeriodicalIF":13.0,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12854","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143836053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ligand-Driven Electron-Deficient Cobalt Pentlandite Nanocrystals for Efficient Hydrogen Peroxide Electrosynthesis","authors":"Jeong-Hyun Kim,&nbsp;Jeong-Gyu Lee,&nbsp;Chang Seong Kim,&nbsp;Min-Jae Choi","doi":"10.1002/eem2.12848","DOIUrl":"https://doi.org/10.1002/eem2.12848","url":null,"abstract":"<p>Cobalt pentlandite (Co₉S₈) is a promising non-precious catalyst due to its superior oxygen reduction reaction activity and excellent stability. However, its oxygen reduction reaction catalytic activity has traditionally been limited to the four-electron pathway because of strong *OOH intermediate adsorption. In this study, we synthesized electron-deficient Co₉S₈ nanocrystals with an increased number of Co³⁺ states compared to conventional Co₉S₈. This was achieved by incorporating a high density of surface ligands in small-sized Co₉S₈ nanocrystals, which enabled the transition of the electrochemical reduction pathway from four-electron oxygen reduction reaction to two-electron oxygen reduction reaction by decreasing *OOH adsorption strength. As a result, the Co³⁺-enriched Co₉S₈ nanocrystals exhibited a high onset potential of 0.64 V (vs RHE) for two-electron oxygen reduction reaction, achieving H₂O₂ selectivity of 70–80% over the potential range from 0.05 to 0.6 V. Additionally, these nanocrystals demonstrated a stable H₂O₂ electrosynthesis at a rate of 459.12 mmol g⁻¹ h⁻¹ with a H₂O₂ Faradaic efficiency over 90% under alkaline conditions. This study provides insights into nanoscale catalyst design for modulating electrochemical reactions.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 2","pages":""},"PeriodicalIF":13.0,"publicationDate":"2024-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12848","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143423934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tailoring Binder Molecular Weight to Enhance Slurry-Cast NMC Cathodes for Sulfide Solid-State Batteries","authors":"Yuanshun Li,&nbsp;Chanho Kim,&nbsp;Ella Williams,&nbsp;YiFeng Su,&nbsp;Jagjit Nanda,&nbsp;Guang Yang","doi":"10.1002/eem2.12858","DOIUrl":"https://doi.org/10.1002/eem2.12858","url":null,"abstract":"<p>We demonstrate for the first time the critical influence of binder molecular weight on the performance of slurry-cast lithium nickel manganese cobalt oxide (NMC) cathodes in sulfide-based all-solid-state batteries (SSBs). SSBs are increasingly recognized as a safer and potentially more efficient alternative to traditional Li-ion batteries, owing to the superior ionic conductivities and inherent safety features of sulfide solid electrolytes. However, the integration of high-voltage NMC cathodes with sheet-type sulfide solid electrolytes presents significant fabrication challenges. Our findings reveal that higher molecular weight binders not only enhance the discharge capacity and cycle life of these cathodes but also ensure robust adhesion and structural integrity. By optimizing binder molecular weights, we effectively shield the active materials from degradation and mechanical stress, significantly boosting the functionality and longevity of SSBs. These results underscore the paramount importance of binder properties in advancing the practical application of high-performance all-solid-state batteries.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 3","pages":""},"PeriodicalIF":13.0,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12858","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lithium Storage Mechanisms and Electrochemical Behavior of a Molybdenum Disulfide Nanoparticle Anode","authors":"Xintong Li,&nbsp;Wei Hao,&nbsp;Hua Wang,&nbsp;Tianyi Li,&nbsp;Dimitrios Trikkaliotis,&nbsp;Xinwei Zhou,&nbsp;Dewen Hou,&nbsp;Kai Chang,&nbsp;Ahmed M. Hashem,&nbsp;Yuzi Liu,&nbsp;Zhenzhen Yang,&nbsp;Saichao Cao,&nbsp;Gyeong Hwang,&nbsp;George Z. Kyzas,&nbsp;Shengfeng Yang,&nbsp;C. Buddie Mullins,&nbsp;Christian M. Julien,&nbsp;Likun Zhu","doi":"10.1002/eem2.12855","DOIUrl":"https://doi.org/10.1002/eem2.12855","url":null,"abstract":"<p>This study investigates the electrochemical behavior of molybdenum disulfide (MoS₂) as an anode in Li-ion batteries, focusing on the extra capacity phenomenon. Employing advanced characterization methods such as in situ and ex situ X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, and transmission electron microscopy, the research unravels the complex structural and chemical evolution of MoS₂ throughout its cycling. A key discovery is the identification of a unique Li intercalation mechanism in MoS₂, leading to the formation of reversible Li_<i>x</i>MoS₂ phases that contribute to the extra capacity of the MoS₂ electrode. Density function theory calculations suggest the potential for overlithiation in MoS₂, predicting Li₅MoS₂ as the most energetically favorable phase within the lithiation–delithiation process. Additionally, the formation of a Li-rich phase on the surface of Li₄MoS₂ is considered energetically advantageous. After the first discharge, the battery system engages in two main reactions. One involves operation as a Li-sulfur battery within the carbonate electrolyte, and the other is the reversible intercalation and deintercalation of Li in Li_<i>x</i>MoS₂. The latter reaction contributes to the extra capacity of the battery. The incorporation of reduced graphene oxide as a conductive additive in MoS₂ electrodes notably improves their rate capability and cycling stability.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 3","pages":""},"PeriodicalIF":13.0,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12855","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Volumetric Stress Managements on Silicon Anode of Lithium-Ion Batteries by a Self-Adaptable Binder","authors":"Shuai Wu,&nbsp;Lanying He,&nbsp;Yue Lu,&nbsp;Jingang Zheng,&nbsp;Lixiang Li,&nbsp;Xin Geng,&nbsp;Chengguo Sun,&nbsp;Hongwei Zhao,&nbsp;Guangshen Jiang,&nbsp;Fang Di,&nbsp;Baigang An","doi":"10.1002/eem2.12859","DOIUrl":"https://doi.org/10.1002/eem2.12859","url":null,"abstract":"<p>The intrinsic volume changes (about 300%) of Si anode during the lithiation/delithiation leads to the serious degradation of battery performance despite of theoretical capacity of 3579 mAh g⁻¹ of Si. Herein, a three-dimensional (3D) conductive polymer binder with adjustable crosslinking density has been designed by employing citric acid (CA) as a crosslinker between the carboxymethyl cellulose (CMC) and the poly(3,4-ethylenedioxythiophene) poly-(styrene-4-sulfonate) (PEDOT:PSS) to stabilize Si anode. By adjusting the crosslinking density, the binder can achieve a balance between rigidity and flexibility to adapt the volume expansion upon lithiation and reversible volume recovery after delithiation of Si. Therefore, Si/CMC-CA-PEDOT:PSS (Si/CCP) electrode demonstrates an excellent performance with high capacities of 2792.3 mAh g⁻¹ at 0.5 A g⁻¹ and a high area capacity above 2.6 mAh cm⁻² under Si loading of 1.38 mg cm⁻². The full cell Si/CCP paired with Li(Ni_0.8Co_0.1Mn_0.1)O₂ cathode discharges a capacity of 199.0 mAh g⁻¹ with 84.3% ICE at 0.1 C and the capacity retention of 95.6% after 100 cycles. This work validates the effectiveness of 3D polymer binder and provides new insights to boost the performance of Si anode.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 3","pages":""},"PeriodicalIF":13.0,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12859","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143836010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Suppressing Exciton–Vibration Coupling and Reducing Nonradiative Energy Loss in Conjugated Polymers Through Fluorine Substitution in Side Chains","authors":"Zezhou Liang,&nbsp;Lihe Yan,&nbsp;Xiaoming Li,&nbsp;Yufei Wang,&nbsp;Baofeng Zhao,&nbsp;Chao Gao,&nbsp;Jinhai Si,&nbsp;Hou Xun","doi":"10.1002/eem2.12856","DOIUrl":"https://doi.org/10.1002/eem2.12856","url":null,"abstract":"<p>Fluorine (F) substitution in polymers modulates both molecular energy levels and film morphology; however, its impact on exciton–vibrational coupling and molecular reorganization energy is often neglected. Herein, we systematically investigated F-modified polymers (PBTA-PSF, PBDB-PSF) and their nonfluorinated counterparts (PBTA-PS, PBDB-PS) through simulations and experiments. We found that F atoms effectively lower the vibrational frequency of the molecular skeleton and suppress exciton–vibration coupling, thereby reducing the nonradiative decay rate. Moreover, introducing F atoms significantly decreases the reorganization energy for the S₀ → S₁ and S₀ → cation transitions while increasing the reorganization energy for the S₁ → S₀ and cation → S₀ transitions. These changes facilitate exciton dissociation and reduce the energy loss caused by dissociation and nonradiative recombination of excitons. Additionally, introducing F atoms into polymers enhances the π–π stacking strength and the crystal coherence length in both neat and blended films, ultimately resulting in improvements in the power conversion efficiency of PBTA-PSF:L8-BO and PBDB-PSF:L8-BO are 16.51% and 17.59%, respectively. This study provides valuable insights for designing organic semiconductor materials to minimize energy loss and achieve a higher power conversion efficiency.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 3","pages":""},"PeriodicalIF":13.0,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12856","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143836009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Seaweed-Inspired NH4V4O10-Ti3C2Tx MXene/Carbon Nanofibers for High-Performance Aqueous Zinc-Ion Batteries","authors":"Seulgi Kim,&nbsp;Seojin Woo,&nbsp;Segi Byun,&nbsp;Hyunki Kim,&nbsp;Han Seul Kim,&nbsp;Sang Mun Jeong,&nbsp;Dongju Lee","doi":"10.1002/eem2.12857","DOIUrl":"https://doi.org/10.1002/eem2.12857","url":null,"abstract":"<p>Aqueous zinc-ion batteries (AZIBs) have emerged as promising, practical energy storage devices based on their non-toxic nature, environmental friendliness, and high energy density. However, excellent rate characteristics and stable long-term cycling performance are essential. These essential aspects create a need for superior cathode materials, which represents a substantial challenge. In this study, we used MXenes as a framework for NH₄V₄O₁₀ (NVO) construction and developed electrodes that combined the high capacity of NVO with the excellent conductivity of MXene/carbon nanofibers (MCNFs). We explored the electrochemical characteristics of electrodes with varying NVO contents. Considering the distinctive layered structure of NVO, the outstanding conductivity of MCNFs, and the strong synergies between the two components. NVO-MCNFs exhibited better charge transfer compared with earlier materials, as well as more ion storage sites, excellent conductivity, and short ion diffusion pathways. A composite electrode with optimized NVO content exhibited an excellent specific capacitance of 360.6 mAh g⁻¹ at 0.5 A g⁻¹ and an outstanding rate performance. In particular, even at a high current density of 10 A g⁻¹, the 32NVO-MCNF exhibited impressive cycling stability: 88.6% over 2500 cycles. The mechanism involved was discovered via comprehensive characterization. We expect that the fabricated nanofibers will be useful in energy storage and conversion systems.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 3","pages":""},"PeriodicalIF":13.0,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12857","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Comprehensive Evaluation Framework for Lithium Iron Phosphate Cathode Relithiation Techniques: Balancing Production Costs, Electrochemical Performance, and Environmental Impact","authors":"Evgenii Beletskii,&nbsp;Alexey Volkov,&nbsp;Elizaveta Evshchik,&nbsp;Valery Kolmakov,&nbsp;Anna Shikhovtseva,&nbsp;Valentin Romanovski","doi":"10.1002/eem2.12850","DOIUrl":"https://doi.org/10.1002/eem2.12850","url":null,"abstract":"<p>Lithium iron phosphate (LFP) has found many applications in the field of electric vehicles and energy storage systems. However, the increasing volume of end-of-life LFP batteries poses an urgent challenge in terms of environmental sustainability and resource management. Therefore, the development and implementation of efficient LFP battery recycling methods are crucial to address these challenges. This article presents a novel, comprehensive evaluation framework for comparing different lithium iron phosphate relithiation techniques. The framework includes three main sets of criteria: direct production cost, electrochemical performance, and environmental impact. Each criterion is scored on a scale of 0–100, with higher scores indicating better performance. The direct production cost is rated based on material costs, energy consumption, key equipment costs, process duration and space requirements. Electrochemical performance is assessed by rate capability and cycle stability. Environmental impact is assessed based on CO₂ emissions. The framework provides a standardized technique for researchers and industry professionals to objectively compare relithiation methods, facilitating the identification of the most promising approaches for further development and scale-up. The total average score across the three criterion groups for electrochemical, chemical, and hydrothermal relithiation methods was approximately 60 points, while sintering scored 39 points, making it the least attractive relithiation technique. Combining approaches outlined in publications with scores exceeding 60, a relithiation scheme was proposed to achieve optimal electrochemical performance with minimal resource consumption and environmental impact. The results demonstrate the framework's applicability and highlight areas for future research and optimization in lithium iron phosphate cathode recycling.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 3","pages":""},"PeriodicalIF":13.0,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12850","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143836431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Highly Efficient and Stable Capacitive Deionization Based on a Flower-Like Conjugated Polymer with Double Active-Sites","authors":"Zhiyun Zhuang,&nbsp;Lei Sun,&nbsp;Yueheng Tao,&nbsp;Jian Shao,&nbsp;Jinggang Yang,&nbsp;Peng Yu,&nbsp;Huanxu Chen,&nbsp;Jianhua Zhou,&nbsp;Jing Xiao,&nbsp;Kangyong Yin,&nbsp;Minjie Shi,&nbsp;Peng Xiao","doi":"10.1002/eem2.12852","DOIUrl":"https://doi.org/10.1002/eem2.12852","url":null,"abstract":"<p>Hybrid capacitive deionization (HCDI) shows promise for desalinating brackish and saline water by utilizing the pseudocapacitive properties of faradaic electrodes. Organic materials, with their low environmental impact and adaptable structures, are attractive for this application. However, their scarcity of active sites and tendency to dissolve in water-based solutions remain significant challenges. Herein, we synthesized a polynaphthalenequinoneimine (PCON) polymer with stable long-range ordered framework and rough three-dimensional floral surface morphology, along with high-density active sites provided by C=O and C=N functional groups, enabling efficient redox reactions and achieving a high Na⁺ capture capability. The synthesized PCON polymer showcases outstanding electroadsorption characteristics and notable structural robustness, attaining an impressive specific capacitance of 500.45 F g⁻¹ at 1 A g⁻¹ and maintaining 86.1% of its original capacitance following 5000 charge–discharge cycles. Benefiting from the superior pseudocapacitive properties of the PCON polymer, we have developed an HCDI system that not only exhibits exceptional salt removal capacity of 100.8 mg g⁻¹ and a remarkable rapid average removal rate of 3.36 mg g⁻¹ min⁻¹ but also maintains 97% of its initial desalination capacity after 50 cycles, thereby distinguishing itself in the field of state-of-the-art desalination technologies with its comprehensive performance that significantly surpasses reported organic capacitive deionization materials. Prospectively, the synthesis paradigm of the double active-sites PCON polymer may be extrapolated to other organic electrodes, heralding new avenues for the design of high-performance desalination systems.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 3","pages":""},"PeriodicalIF":13.0,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12852","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143836382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Superior Energy Storage Performance in Crosslinked Binary Polymers at High Temperatures Via Confinement Effect","authors":"Yongbin Liu,&nbsp;Yating Xu,&nbsp;Jinghui Gao,&nbsp;Jingzhe Xu,&nbsp;Ming Wu,&nbsp;Zhengwei Liu,&nbsp;Yilong Wang,&nbsp;Xiaojie Lou,&nbsp;Lisheng Zhong","doi":"10.1002/eem2.12847","DOIUrl":"https://doi.org/10.1002/eem2.12847","url":null,"abstract":"<p>High-temperature performance of energy storage dielectric polymers is desired for many electronics and electrical applications, but the trade-off between energy density and temperature stability remains fundamentally challenging. Here, we report a general material design strategy to enhance energy storage performance at high temperatures by crosslinking a polar polymer and a high glass-transition temperature polymer as a crosslinked binary blend. Such crosslinked binary polymers display a temperature-insensitive and high energy density behavior of about 6.2 ~ 8.5 J cm⁻³ up to 110 °C, showing a significant enhancement in thermal resistant properties and consequently outperforming most of the other ferroelectric polymers. Further microstructural investigations reveal that the improved thermal stability stems from the confinement effect on conformational motion of the crosslinking network, which is evidenced by the increased rigid amorphous fraction and steady intermolecular distance of amorphous regions from temperature-dependent X-ray diffraction results. Our findings provide a general and straightforward strategy to attain temperature-stable, high-energy-density polymer-based dielectrics for energy storage capacitors.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 2","pages":""},"PeriodicalIF":13.0,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12847","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143424272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}