Energy & Environmental Materials最新文献

{"title":"Micro-Scale Dual Interface Layer With N-Coordination Encapsulated on Coralloid Si Anode for Lithium-Ion Batteries","authors":"Juxuan Ding,&nbsp;Jifei Sun,&nbsp;Boyuan Ban,&nbsp;Yunsheng Wu,&nbsp;Huishe Wang,&nbsp;Jian Chen","doi":"10.1002/eem2.70448","DOIUrl":"https://doi.org/10.1002/eem2.70448","url":null,"abstract":"<p>Micro-scale silicon (μSi) anodes are promising candidates for enhancing energy density of lithium-ion batteries, yet their commercialization is hindered by severe volumetric expansion and interfacial instability. Herein, we present a coralloid μSi encapsulated in a micro-scale N-coordinated dual-carbon interface (μSi@CNC) structure via simple Al<span></span>Si melt modification and spray carbonization to alleviate these problems. The unique multifunctional carbon architecture efficiently tackles the challenges of interfacial instability and poor conductivity for the coralloid μSi matrix. Synergistic with N coordination, the fabricated μSi@CNC anode delivers robust structural integrity and rapid charge transfer kinetics. Finite element analysis demonstrates the optimized ionic insertion/extraction kinetics and suppressed irreversible SEI formation achieved by engineering the interfacial network. Therefore, the μSi@CNC anode achieves a high initial Coulombic efficiency of 85.7% and retains 792.1 mAh g⁻¹ after 500 cycles. Both LiCoO₂ ||μSi@CNC full cell and μSi@CNC/graphite hybrid anode demonstrate high capacity with excellent cycling stability. This work establishes a novel and scalable route for fabricating high-performance μSi anode in advanced lithium-ion batteries.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 6","pages":""},"PeriodicalIF":13.8,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70448","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149027783","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":"Sacrificing Energy for Mass Transfer to Boost Solar Steam Generation","authors":"Tian Liang,&nbsp;Yuzhu Li,&nbsp;Zuyang Ye","doi":"10.1002/eem2.70373","DOIUrl":"https://doi.org/10.1002/eem2.70373","url":null,"abstract":"<p>Vapor accumulation often limits the performance of passive interfacial solar evaporation. Inspired by the Dyson sphere concept, Xu, Yang, and co-workers designed a perforated-shell evaporator with an internal non-evaporating core that diverts incident sunlight to drive self-generated internal convection for vapor removal. This strategy provides a versatile pathway for enhancing interfacial mass transfer in sustainable solar to water technologies.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 6","pages":""},"PeriodicalIF":13.8,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70373","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149027826","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":"Dual-Armor Architecture-Mediated Microstructural Engineering of Germanium Anode for Advanced Liquid- and Solid-State Batteries","authors":"Tiansheng Chen,&nbsp;Xiang Yan,&nbsp;Tengtao Hu,&nbsp;Jun Zhang,&nbsp;Huaizheng Huang,&nbsp;Yang Xia,&nbsp;Wenkui Zhang,&nbsp;Xinhui Xia,&nbsp;Xinyong Tao,&nbsp;Xue Li,&nbsp;Hui Huang","doi":"10.1002/eem2.70308","DOIUrl":"https://doi.org/10.1002/eem2.70308","url":null,"abstract":"<p>Germanium (Ge) is an attractive anode material for advanced lithium-ion batteries (LIBs) due to its high theoretical capacity, excellent Li⁺ diffusivity, and high electronic conductivity. However, its substantial volume variation and unstable solid electrolyte interphase (SEI) during cycling lead to rapid capacity decay. Here, a p-Ge/SiO₂/NC-2 composite with a dual-armor architecture is developed through a rational pore-filling and interface engineering strategy. This unique structure features a porous Ge skeleton with embedded SiO₂ microspheres and an outer N-doped carbon layer, forming a stable inner support and outer confinement system. The mechanical integrity is enhanced by the porous structure and the rigid SiO₂ particles, which collectively inhibit pore collapse and mitigate volume expansion. Meanwhile, the N-doped carbon layer not only facilitates rapid charge transfer but also promotes the formation of a stable SEI enriched with LiF and Li₃N in liquid electrolyte systems. Finite element simulation further verifies that this synergistic dual-armor design enables low stress strain and high structural stability during cycling. As a result, the composite anode demonstrates exceptional lithium storage performance, achieving a high capacity retention of 94.4% after 250 cycles at 0.5 C in the LFP||p-Ge/SiO₂/NC-2 full cells. Notably, the p-Ge/SiO₂/NC-2||LPSC||Li all-solid-state lithium-ion batteries (ASSLIBs) with a sulfide solid electrolyte maintain stable cycling, delivering a specific capacity of 449 mAh g⁻¹ at 0.5 A g⁻¹. This work highlights the crucial role of rational structural design in advancing Ge-based anodes for high-performance energy storage systems.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 6","pages":""},"PeriodicalIF":13.8,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70308","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149029005","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":"Synthesis of Single-Crystalline Ni-Rich Cathodes for Lithium-Ion Batteries With Superior High-Voltage Stability by Mo/Nb Dual Doping","authors":"Guomeng Xie,&nbsp;Ziqin Xu,&nbsp;Delai Qian,&nbsp;Ruiwu Li,&nbsp;Qingsong Hua,&nbsp;Shun Lu,&nbsp;Haitao Fang","doi":"10.1002/eem2.70319","DOIUrl":"https://doi.org/10.1002/eem2.70319","url":null,"abstract":"<p>Single-crystalline Ni-rich cathodes are promising candidates for high-energy density lithium-ion batteries due to their grain-boundary-free structures, which effectively reduce structural degradation associated with intergranular microcracks often seen in polycrystalline materials. However, these single-crystalline cathodes face challenges such as slow Li⁺ diffusion kinetics, significant parasitic interface reactions, and irreversible phase transitions at elevated cut-off voltages, which can lead to the formation of intragranular cracks and impede their practical usage. In this study, the single-crystalline LiNi_0.8Co_0.15Al_0.05O₂ (NCA) was synthesized by stripping grain boundaries from polycrystalline NCA through Mo/Nb dual doping. The Mo doping near the grain surface significantly reduces parasitic interface reactions, while Nb doping within the bulk of grains helps to improve harmful irreversible phase transitions. The synergistic effect of Mo/Nb dual doping in single-crystalline NCA effectively suppresses intragranular crack formation during prolonged cycling at high cut-off voltages. Therefore, the Mo/Nb co-doped cathode demonstrates enhanced structural stability and electrochemical activity, achieving an impressive capacity retention of 82.4% after 500 cycles at 1 C between 2.8 and 4.7 V, surpassing both polycrystalline and single-crystalline NCA doped only with Mo or Nb. This work provides a new strategy to synthesize single-crystalline NCA combined with effective dual doping, advancing the development of high-energy density lithium-ion batteries.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 6","pages":""},"PeriodicalIF":13.8,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70319","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149027714","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":"Cobalt-Free Single-Crystal Cathodes for Next-Generation Lithium-Ion Batteries","authors":"Srinivasan Alagar,&nbsp;Rakesh Saroha,&nbsp;Jun Kim,&nbsp;Hyung Do Kim,&nbsp;Jung Sang Cho,&nbsp;Sang Mun Jeong","doi":"10.1002/eem2.70206","DOIUrl":"https://doi.org/10.1002/eem2.70206","url":null,"abstract":"<p>The transition toward sustainable, high-energy density lithium-ion batteries (LIBs) has intensified the search for cobalt-free cathode materials, driven by the environmental, economic, and ethical limitations associated with cobalt usage. Among these, single-crystal (SC) cobalt-free cathodes have emerged as a transformative class of materials, offering superior structural integrity, enhanced thermal stability, and prolonged cycling life. This review critically examines recent advancements in SC cathode architectures across four major material families: Ni-rich layered oxides, Li-Mn-rich compositions, spinel-type structures, and olivine-based frameworks. Unlike their polycrystalline analogues, SC cathodes feature continuous crystal lattices without internal grain boundaries, significantly reducing particle fracture, mitigating surface degradation, and suppressing phase instability during high-voltage cycling. We explore state-of-the-art synthesis techniques including molten salt-assisted crystallization, hydrothermal growth, and co-precipitation that enable the fabrication of phase-pure SC particles with tailored morphology and minimal defect content. Additionally, the role of structural tuning strategies such as elemental doping, surface coatings, and facet orientation control is discussed in detail, with particular emphasis on improving electrochemical reversibility, lithium-ion diffusion, and interfacial compatibility. Despite notable progress, key challenges persist, including controlling anisotropic lithium transport, preventing oxygen evolution, and ensuring process scalability. Emerging solutions involving entropy stabilization and advanced interface engineering are also discussed as promising pathways forward. By integrating insights across structure, chemistry, and processing, this review provides a comprehensive foundation for the design and deployment of cobalt-free SC cathodes, offering practical pathways toward safer, longer-lasting, and more sustainable LIB systems, compatible with both liquid and solid-state battery technologies.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 6","pages":""},"PeriodicalIF":13.8,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70206","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149027784","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":"Controlled Nanoarchitecture of Aligned Electrospinning Fiber Composite Electrolyte Based on Plant and Animal Biopolymers for Safe Na-Ion Batteries","authors":"Md. Mehadi Hassan,&nbsp;Brett Conners,&nbsp;Mojtaba Ebrahimian Mashhadi,&nbsp;Jinguang Hu,&nbsp;Xia Li,&nbsp;Qingye Lu","doi":"10.1002/eem2.70289","DOIUrl":"https://doi.org/10.1002/eem2.70289","url":null,"abstract":"<p>The resurgence of solid-state Na⁺ battery, sustained through lithium deficiency and mounting costs, offers an auspicious alternative to solid-state Li⁺ battery. This study introduces a nanoarchitectural approach that integrates electrospinning with a simple solution casting technique to develop a mechanically robust (21.8 MPa), thin film (~76 μm), flexible, wearable, and free-standing nanoporous aligned electrospun composite electrolyte membrane for solid-state Na⁺ batteries. The aligned electrospun composite electrolyte membrane combines fully biodegradable, biocompatible biopolymers: cellulose acetate—a cellulose derivative and chitosan—obtained from crustaceans' shells. Nanoporous electrospun cellulose acetate fiber mats were fabricated by optimizing electrospinning parameters, then coated with a chitosan and NaPF₆ solution. The high nanoporosity and aligned microstructure of the cellulose acetate fibers, along with the chitosan matrix, created uniform Na⁺ transfer channels, leading to a promising room temperature (RT = 23 °C) Na⁺ conductivity of 4.12 × 10⁻⁴ S cm⁻¹ and ion transference number (<span></span><math>\u0000 <mrow>\u0000 <msub>\u0000 <mi>t</mi>\u0000 <msup>\u0000 <mi>Na</mi>\u0000 <mo>+</mo>\u0000 </msup>\u0000 </msub>\u0000 </mrow></math> = 0.58). At 0.1 mA cm⁻², a uniform sodium plating–stripping was observed for over 600 h at RT. In an application of a full hybrid battery set up, comprising a Na₃V₂(PO₄)₃ cathode, developed aligned electrospun composite electrolyte, and Na anode, 93.2 mA h g⁻¹ discharge capacity was achieved at 0.1 C. After 100 cycles, the cell demonstrated a Coulombic efficiency exceeding 88% with 86% capacity retention. This engineered nanoarchitectural design of plant and animal resource-based composite electrolyte, along with promising material and electrochemical performance, lays a foundation for the development of green electrolyte systems for SIB application.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 6","pages":""},"PeriodicalIF":13.8,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70289","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149027827","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":"Perpendicularly Aligned Superionic Pathways Enable Pressure-Less Solid-State Lithium Batteries","authors":"Yufan Peng,&nbsp;Jiale Xia,&nbsp;Jinping Liu","doi":"10.1002/eem2.70464","DOIUrl":"https://doi.org/10.1002/eem2.70464","url":null,"abstract":"<p>A fundamental trade-off between ionic conductivity and mechanical compliance has long constrained the development of composite solid electrolytes. Cheng et al. address this challenge through a biomimetic electrolyte architecture featuring continuously aligned superionic pathways that decouple ion transport from mechanical flexibility. This architectural design establishes a new paradigm for composite electrolyte engineering and provides a promising route toward practical pressure-less solid-state batteries.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 6","pages":""},"PeriodicalIF":13.8,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70464","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149028022","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":"Optimally Carbonized Mangrove Wood–Derived Hard Carbon with a Soft Carbon Coating for High-Performance Sodium-Ion Battery Anodes","authors":"Hyung-Keun Shin,&nbsp;Gyoo-Rin Kim,&nbsp;Seong-Ju Han,&nbsp;Jeong Mi Yeon,&nbsp;Hyun-Kyung Kim","doi":"10.1002/eem2.70302","DOIUrl":"https://doi.org/10.1002/eem2.70302","url":null,"abstract":"<p>Sodium-ion batteries (SIBs) are emerging as promising alternatives to lithium-ion batteries owing to the abundance of sodium resources and the limited supply of lithium raw materials. However, the development of high-performance anode materials remains a critical challenge owing to the relatively low initial coulombic efficiencies (ICEs) and limited reversible capacities of conventional carbon-based anodes. Herein, hard carbon (HC) from mangrove wood was synthesized via controlled carbonization, and its electrochemical performance was systematically investigated. HC prepared by carbonization at 1200 °C (MWHC-1200) exhibited the best performance, delivering a high reversible capacity of 266.6 mAh g⁻¹ and an ICE of 75%. Pitch-derived soft carbon coatings (containing 5, 10, or 15 wt% pitch) were applied to HC synthesized at the optimal carbonization temperature to further enhance Na⁺-storage performance. Notably, the composite containing 10 wt% pitch (PC-10) exhibited the best electrochemical performance, delivering a high reversible capacity of 291.5 mAh g⁻¹, an ICE of 82%, a capacity retention of 90.4% after 200 cycles, and an excellent rate capability. These improvements were associated with the suppression of irreversible reactions and improvement in interfacial stability. This study offers a simple yet effective approach for improving the electrochemical properties of biomass-derived HC and provides insights into the design of practical SIB anodes.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 6","pages":""},"PeriodicalIF":13.8,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70302","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149029013","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":"Air Stability of Sulfide Solid Electrolytes: From Theoretical Insights to Practical Solutions","authors":"Hongbing Ding,&nbsp;Yue Hu,&nbsp;Xin Li,&nbsp;Yang Su,&nbsp;Xinlu Wang,&nbsp;Hongbo Zhang,&nbsp;Guixia Liu,&nbsp;Wensheng Yu,&nbsp;Xiangting Dong,&nbsp;Jinxian Wang,&nbsp;Xin Wang","doi":"10.1002/eem2.70357","DOIUrl":"https://doi.org/10.1002/eem2.70357","url":null,"abstract":"<p>Sulfide solid electrolytes are pivotal for enabling high-performance all-solid-state batteries due to their high ionic conductivity and good processability. However, their poor air stability remains a key bottleneck hindering large-scale commercialization. This review provides a comprehensive overview of this pressing challenge. First, a brief overview of the development history and major breakthroughs in the field is presented, followed by an in-depth description of the various theories currently used to explain the poor air stability of sulfide solid electrolytes, including the soft and hard acid–base theories, the irregular network theory, the theory of grain boundary and defect modulation, the thermodynamic analysis, and the kinetics of interfacial reactions. In addition, the mechanisms of action and practical applications of effective strategies to improve the air stability of various sulfide solid electrolytes are summarized in focus, including doping modification, surface engineering, H₂S absorbers, and synergistic modification design. Finally, we conduct an in-depth discussion on the core challenges associated with achieving air-stable sulfide solid electrolytes in practical scenarios and further envision future research directions in this field.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 6","pages":""},"PeriodicalIF":13.8,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70357","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149028980","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":"Synergistic π-π and π-d Interactions Between Carbon Nanotubes and Coordination Polymers Crafting Core-Shell Nanostructured Cathode for High-Performance Sodium-Organic Batteries","authors":"Mengpei Qi,&nbsp;Xiaohua Lei,&nbsp;Xiaoju Lu,&nbsp;Yalong Jiang,&nbsp;Yunhai Zhu,&nbsp;Aiqing Zhang,&nbsp;Yingkui Yang","doi":"10.1002/eem2.70296","DOIUrl":"https://doi.org/10.1002/eem2.70296","url":null,"abstract":"<p>π-d conjugated coordination polymers hold promising electrode candidates for advanced sodium-ion batteries (SIBs) while they commonly encounter challenges such as restricted electron delocalization and utilization of redox-active sites during electrochemical cycling. Herein, we propose a core-shell composite (CNT@Ni-DHBQ) as the cathode for SIBs via in situ polymerization, in which 2,5-dihydroxy-1,4-benzoquinone (DHBQ) serves as the organic ligand, Ni²⁺ as the metal center, and carbon nanotubes (CNTs) as conductive scaffolds. The well-defined core-shell architecture offers a large specific surface area with numerous exposed sites, enabling fast electron transport and superior rate capability. In addition, robust π-π stacking between Ni-DHBQ and conductive CNT framework significantly enhances cycling stability. A reversible carbonyl (C=O) based redox mechanism in CNT@Ni-DHBQ during cycling is revealed by ex situ X-ray photoelectron spectroscopy (XPS) and density functional theory (DFT) calculations. This molecular- and microstructure-engineered strategy provides a feasible strategy to boost the energy-storage performance of organic cathodes in SIBs.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 5","pages":""},"PeriodicalIF":13.8,"publicationDate":"2026-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70296","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148695890","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}