Advanced Energy Materials最新文献

{"title":"Electric-Field-Driven Bilayer Interphase from Oxygenated Nanodiamond-Carbon Nanoparticles for Dendrite-Free Lithium Metal Batteries","authors":"Jaeseong Kim,&nbsp;Incheol Heo,&nbsp;Dong-Kyung Kim,&nbsp;Min Seok Kang,&nbsp;Ji Hee Kwon,&nbsp;Byeong-Seon An,&nbsp;Keir C. Neuman,&nbsp;Byung-Hyun Kim,&nbsp;Hak-Sung Jung,&nbsp;Won Cheol Yoo","doi":"10.1002/aenm.202505964","DOIUrl":"10.1002/aenm.202505964","url":null,"abstract":"<p>Lithium metal batteries (LMBs) offer exceptional energy density but are severely limited by dendrite formation and unstable interphases. Here, this work presents an electric field–driven in situ strategy to construct a vertically graded interphase using an oxygen-rich nanodiamond/carbon (O-ND/C) composite. During Li plating, conductive carbon migrates toward the current collector, forming a C-enriched conductive sublayer beneath a lithiophilic O-ND-rich insulating layer. This bilayer architecture homogenizes Li-ion flux, lowers the nucleation barrier, and simultaneously ensures mechanical robustness and electronic insulation, thereby enabling dendrite-free Li deposition. The optimized O-ND with 10 wt% of C interphase demonstrates outstanding electrochemical stability, maintaining an ultralow overpotential of 9.5 mV for 5800 h in symmetric cells and an average Coulombic efficiency (CE) of 98.8% to 700 cycles. In full-cell configurations with LiFePO₄ cathodes, stable operation is sustained for up to 1500 cycles, areal capacity of 12.1 mAh cm⁻² retained 9.9 mAh cm⁻² after 50 cycles even under industrially relevant high cathode loading (93.8 mg_LFP cm⁻²). Complementary density functional theory calculations confirm that O-ND surfaces enhance Li adsorption and diffusion, corroborating the experimental results. This work provides mechanistic insight into field-driven interphase engineering and offers a practical pathway toward safe, high-energy density LMBs.</p>","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"16 14","pages":""},"PeriodicalIF":26.0,"publicationDate":"2026-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/aenm.202505964","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146129283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Investigation of the Lithium Extraction Mechanism from LiNi0.6Mn0.2Co0.2O2 by Using Operando Neutron Diffraction in an All-Solid-State Battery","authors":"Sreelakshmi Anil Kumar,&nbsp;Dhanush Shanbhag,&nbsp;Ove Korjus,&nbsp;Prashanth Sivakumar,&nbsp;Laurence Croguennec,&nbsp;Christian Masquelier,&nbsp;Jean-Noël Chotard,&nbsp;Emmanuelle Suard","doi":"10.1002/aenm.202506600","DOIUrl":"10.1002/aenm.202506600","url":null,"abstract":"<p>All-Solid-State Batteries (ASSBs) are promising emerging devices for meeting high-energy demands and an in-depth understanding of the reaction mechanisms occuring during their operation will help in their design for better performance. In this context, neutrons, with their high penetration depth and sensitivity to light elements such as lithium, provide a powerful tool for investigating the structural mechanisms occurring in bulk ASSBs, while the electrochemical operation of large batteries (required for neutron diffraction) remains a challenge. In this study, we demonstrate the reversible electrochemical Li⁺ extraction/insertion within a 2.5 mm thick ASSB system comprising 140 mg of LiNi_0.6Mn_0.2Co_0.2O₂ (NMC622) as the positive electrode material (238 mWh energy density), Li_5.4PS_4.4BrCl_0.6 (LPSClBr) as the solid electrolyte and Li_0.5In as the negative electrode. Thanks to the use of the newly-designed ILLBAT#5 electrochemical cell, we were able to perform <i>operando</i> neutron powder diffraction (NPD) of the system, which coupled with ex situ diffraction, allowed us to gain valuable insights into the structural evolution of NMC622 within the ASSB as well as to probe the structural stability of the Argyrodite solid electrolyte throughout the initial cycle. Herein, we report on the formation and the co-existence of H1-H2 phases in NMC622, attributed to system inhomogeneity.</p>","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"16 14","pages":""},"PeriodicalIF":26.0,"publicationDate":"2026-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/aenm.202506600","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Selective CO2-to-CH4 Photoreduction Enabled by Au/TiO2-VTi Nanosheets via Boosting H2O Dissociation and CO Protonation","authors":"Kai Zheng,&nbsp;Bangwang Li,&nbsp;Youbin Zheng,&nbsp;Xiulai Zhang,&nbsp;Runhua Chen,&nbsp;Shengyue Zhang,&nbsp;Siying Liu,&nbsp;Juncheng Zhu,&nbsp;Jianyi Liu,&nbsp;Wenxiu Liu,&nbsp;Jun Hu,&nbsp;Chengyuan Liu,&nbsp;Fanfei Sun,&nbsp;Zhongqin Dai,&nbsp;Yongfu Sun,&nbsp;Yi Xie","doi":"10.1002/aenm.202506793","DOIUrl":"10.1002/aenm.202506793","url":null,"abstract":"<div>\u0000 \u0000 <p>Photocatalytic CO₂ methanation is fundamentally constrained by two intertwined bottlenecks: inefficient proton generation from H₂O dissociation and the premature desorption of the critical ^*CO intermediate. Here, we design metal cation vacancy clusters-O⁻ motifs for accelerating H₂O dissociation and boosting ^*CO protonation, while supported metal sites for CO₂ activation over metal-anchored metal oxide nanosheets. As a prototype, we fabricate Au/TiO₂-<i>V</i>_Ti nanosheets, where synchrotron-radiation X-ray absorption fine structure and electron paramagnetic resonance spectroscopy confirm <i>V</i>_Ti-O⁻ and coordination-unsaturated Au sites. Density-functional-theory calculations reveal the creation of <i>V</i>_Ti-O⁻ sites drive the step of ^*CO protonation toward ^*CHO from an endothermic process (0.09 eV) to an exothermic one (−0.29 eV), and concurrently the energy for H₂O dissociation into protons is lowered by a factor of two (1.31 eV → 0.65 eV). In situ Fourier-transform infrared spectroscopy directly captures a distinct ^*CO intermediate, confirming its stabilization on the photocatalyst surface and thereby promoting the protonation step toward ^*CHO. Consequently, the Au/TiO₂-<i>V</i>_Ti nanosheets show a superior CH₄ formation rate of 156.5 µmol g⁻¹ h⁻¹ with near-100% selectivity. Briefly, this work offers key insights into CO₂ methanation bottlenecks and proposes a catalyst design blueprint to advance CO₂ valorization.</p>\u0000 </div>","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"16 14","pages":""},"PeriodicalIF":26.0,"publicationDate":"2026-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146102040","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}

{"title":"Halogen-Induced Anion-Rich Solvation Structure Enables High Li+ Transference Number of Gel Polymer Electrolyte for Durable Lithium Metal Batteries","authors":"Peng Wang,&nbsp;Hailong Xie,&nbsp;Yike Liu,&nbsp;Zhengyuan Bai,&nbsp;Na Li,&nbsp;Shu Hong,&nbsp;Chuancong Zhou,&nbsp;Lutong Shan,&nbsp;Zaowen Zhao,&nbsp;Xiaodong Shi","doi":"10.1002/aenm.202506710","DOIUrl":"10.1002/aenm.202506710","url":null,"abstract":"<div>\u0000 \u0000 <p>Gel polymer electrolytes (GPEs) show great promise for lithium metal batteries (LMBs), yet achieving a durable Li anode remains challenging due to the instability of the solid electrolyte interphase (SEI) layer. Regulating the Li⁺ solvation structure is a critical approach to construct an effective SEI layer on the Li anode. In this work, a nanofiber membrane with polyethylenimine-iodine (PEI-I)/PAN complex core and polyacrylonitrile/polyvinylidene fluoride-co-hexafluoropropylene (PAN/PVDF-HFP) polymer sheath (P-I/P@P/P) is elaborately designed and prepared via the electrospinning method. The synergistic effect between the three-dimensional matrix and the slowly released PEI-I additive not only suppresses the combustion property of traditional GPEs, but also promotes the lithium-ion desolvation and the generation of inorganic SEI layer on Li anode. As demonstrated, the optimized P-I/P@P/P GPE delivers a high Li⁺ transference number of 0.88, high ionic conductivity of 2.34 mS cm⁻¹, and heterogeneous SEI composition of Li₃N/Li₂CO₃/LiF. The corresponding Li||Li cell achieves stable voltage polarization for 1000 h at 5 mA cm⁻², and the Li||Cu cell displays a high Coulombic efficiency of 97.84%. Satisfyingly, the targeted Li||LiFePO₄ battery exhibits an impressive capacity retention ratio of 97% after 3000 cycles. These findings offer a design paradigm for functional GPEs to drive the implementation of high-energy-density LMBs in practical scenarios.</p>\u0000 </div>","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"16 14","pages":""},"PeriodicalIF":26.0,"publicationDate":"2026-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146089635","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}

{"title":"Dual–Spillover Mediated Highly Efficient Electrocatalytic Nitrate Reduction to Ammonia Over Co–Doped Sr2CuWO6 Double Perovskite","authors":"Mingqing Zuo, Han Zhou, Yaping Chen, Yijuan Zheng, Xinzhuo Qu, Shufan Han, Peng Chen, Zeyan Zhou, Yanyan Sun, Shuang Li, Lei Han","doi":"10.1002/aenm.70928","DOIUrl":"https://doi.org/10.1002/aenm.70928","url":null,"abstract":"Electrocatalytic nitrate reduction reaction (NO₃RR) provides a green route to concurrently mitigate nitrate pollution and address the unsustainability of Haber–Bosch ammonia (NH₃) synthesis. However, the development of high–performance NO₃RR catalysts is plagued by inappropriate active site spacing, insufficient functional synergy, and sluggish multi–proton–coupled multi–electron transfer kinetics. Herein, we design Co–doped Sr₂CuWO₆ double perovskite catalysts to optimize active site spacing and construct functionally complementary active sites for efficient NO₃RR. Experimental and theoretical results reveal a synergistic dual–spillover mechanism: the dominant NO₃⁻ adsorption and initial activation (NO₃⁻→NO₂⁻) on Cu sites are promoted by active hydrogen (^*H) from water dissociation on Co sites via hydrogen spillover, whereas the generated ^*NO₂ intermediates from Cu sites diffuse to Co sites via intermediate spillover for further hydrogenation to NH₃ due to the enhanced ^*NO₂ adsorption on Co sites. As expected, the optimal Sr₂Cu_0.7Co_0.3WO₆ achieves an exceptional NH₃ yield rate of 47.2 mg h⁻¹ mg_cat⁻¹ with a Faradaic efficiency (FE) of 93 % at −0.7 V (vs. RHE). This work establishes a rational cation doping strategy for constructing functionally complementary active sites in double perovskites, shedding light on the structure–activity relationship and guiding the design of advanced NO₃RR catalysts for sustainable NH₃ synthesis and nitrate remediation.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"21 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2026-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147630817","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}

{"title":"Achieving Phonon-Glass Electron-Crystal Behavior in Fully Organic Flexible Thermoelectrics","authors":"Jeong Han Song, Seunghwan Lee, Sunwoo Cho, Beomsoo Chun, Hyejin Jang, Jeonghun Kwak","doi":"10.1002/aenm.70927","DOIUrl":"https://doi.org/10.1002/aenm.70927","url":null,"abstract":"Realizing phonon-glass electron-crystal (PGEC) behavior, which combines metal-like charge transport with glass-like thermal conduction, is a key strategy for advancing thermoelectric efficiency. Although this paradigm has been implemented in inorganic materials, its translation into organic systems, which are attractive for flexible and wearable devices, remains unexplored. Here, a fully organic route to PGEC behavior is achieved by incorporating polyvinyl alcohol (PVA) into a conductive poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) matrix. The optimized composite exhibits semi-metallic electronic transport and ultralow thermal conductivity close to its theoretical minimum. Hence, a substantially improved power factor of 74.5 µW m⁻¹ K⁻² and a maximum figure of merit of 0.10 are attained at 300 K, which are among the highest values reported for practical micrometer-thick PEDOT:PSS films. The performance originates from hierarchical structural evolution in which PEDOT domains preserve delocalized conduction, while PVA nano-crystalline phases and interfacial acoustic mismatch selectively scatter phonons. In contrast to inorganic fillers, the all-organic composite maintains excellent flexibility, retaining more than 99.5% of its initial electrical conductivity after 20 000 bending cycles at a radius of 4.3 mm. These findings establish design principles for organic thermoelectrics and highlight their potential in high-performance, self-powered wearable devices.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"18 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2026-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147641420","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}

{"title":"Self-Regenerating 3D Protective Network Breaks the Activity-Stability Trade-Off for Industrial Oxygen Evolution Electrocatalysis","authors":"Rongrong Shi, Ji Tang, Bing Li, Zheyuan Ji, Feng Gao, Enzuo Liu, Liying Ma, Biao Chen, Fang He, Chunsheng Shi, Chunnian He, Naiqin Zhao, Jianli Kang","doi":"10.1002/aenm.202505516","DOIUrl":"https://doi.org/10.1002/aenm.202505516","url":null,"abstract":"In industrial alkaline water electrolysis (AWE), the long-term operational stability of oxygen evolution reaction (OER) electrocatalysts under harsh conditions—including high current densities, concentrated alkaline electrolytes, and elevated temperatures—often takes precedence over intrinsic catalytic activity. Nevertheless, existing strategies aimed at enhancing catalyst stability remain insufficient. Herein, we propose a stability-oriented alloy design strategy based on incorporating corrosion-resistant Cr into a dual-phase MnFeCoNiMo high-entropy alloy. Notably, thermodynamically driven forces promote the spontaneous enrichment of Cr within the Mo-rich domains. Subsequent selective dealloying enables the in situ formation of a self-assembled, non-occlusive 3D (Cr, M)O_x-enriched protective network. Time-of-flight secondary ion mass spectrometry (TOF-SIMS) and electron probe microanalysis (EPMA) reveal the continuous self-regenerating behavior and dynamic structural reorganization of this network during long-term operation, which effectively reconciles the classic activity–stability trade-off. As a result, the nanoporous (np) HEA-CrMo electrode exhibits OER overpotentials of 184 mV at 10 mA cm⁻² and 252 mV at 100 mA cm⁻², and sustains stable operation for over 5000 h at 1000 mA cm⁻² in 6.0 M KOH. Furthermore, its scalability is demonstrated in a commercial alkaline water electrolyzer with an effective reaction area of 70.9 cm² during a 15-day accelerated stress test.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"195 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147630826","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}

{"title":"Uncovering the Role of Intrinsic Magnetic Order in Oxygen Evolution Reaction Activity With Operando Spectroscopy","authors":"Emma van der Minne, Silvia Mauri, Anatoliy A. Vereshchagin, Vadim Ratovskii, Ellen M. Kiens, Hemanita Sharma, Jan Behrends, Piero Torelli, Gertjan Koster, Christoph Baeumer","doi":"10.1002/aenm.202506663","DOIUrl":"https://doi.org/10.1002/aenm.202506663","url":null,"abstract":"Understanding the role of intrinsic magnetic order on the oxygen evolution reaction (OER) requires careful consideration of the magnetic properties of both the catalytic surface and bulk under operating conditions. Because these often diverge from those of the pristine material, operando characterization that directly links magnetic behavior to catalytic activity is essential. Here, we investigate the magnetic properties of &lt;span data-altimg=\"/cms/asset/dd8d3015-d002-43fc-960a-ac4837c91bb1/aenm70888-math-0001.png\"&gt;&lt;/span&gt;&lt;mjx-container ctxtmenu_counter=\"279\" ctxtmenu_oldtabindex=\"1\" jax=\"CHTML\" role=\"application\" sre-explorer- style=\"font-size: 103%; position: relative;\" tabindex=\"0\"&gt;&lt;mjx-math aria-hidden=\"true\" location=\"graphic/aenm70888-math-0001.png\"&gt;&lt;mjx-semantics&gt;&lt;mjx-mrow data-semantic-annotation=\"clearspeak:unit\" data-semantic-children=\"2,3\" data-semantic-content=\"4\" data-semantic- data-semantic-role=\"implicit\" data-semantic-speech=\"upper L a 0.67 upper S r\" data-semantic-type=\"infixop\"&gt;&lt;mjx-msub data-semantic-children=\"0,1\" data-semantic- data-semantic-parent=\"5\" data-semantic-role=\"unknown\" data-semantic-type=\"subscript\"&gt;&lt;mjx-mi data-semantic-font=\"normal\" data-semantic- data-semantic-parent=\"2\" data-semantic-role=\"unknown\" data-semantic-type=\"identifier\"&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;/mjx-mi&gt;&lt;mjx-script style=\"vertical-align: -0.15em;\"&gt;&lt;mjx-mn data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"normal\" data-semantic- data-semantic-parent=\"2\" data-semantic-role=\"float\" data-semantic-type=\"number\" size=\"s\"&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;/mjx-mn&gt;&lt;/mjx-script&gt;&lt;/mjx-msub&gt;&lt;mjx-mo data-semantic-added=\"true\" data-semantic- data-semantic-operator=\"infixop,⁢\" data-semantic-parent=\"5\" data-semantic-role=\"multiplication\" data-semantic-type=\"operator\" style=\"margin-left: 0.056em; margin-right: 0.056em;\"&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;/mjx-mo&gt;&lt;mjx-mi data-semantic-font=\"normal\" data-semantic- data-semantic-parent=\"5\" data-semantic-role=\"unknown\" data-semantic-type=\"identifier\"&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;/mjx-mi&gt;&lt;/mjx-mrow&gt;&lt;/mjx-semantics&gt;&lt;/mjx-math&gt;&lt;mjx-assistive-mml display=\"inline\" unselectable=\"on\"&gt;&lt;math altimg=\"urn:x-wiley:16146832:media:aenm70888:aenm70888-math-0001\" display=\"inline\" location=\"graphic/aenm70888-math-0001.png\" xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;semantics&gt;&lt;mrow data-semantic-=\"\" data-semantic-annotation=\"clearspeak:unit\" data-semantic-children=\"2,3\" data-semantic-content=\"4\" data-semantic-role=\"implicit\" data-semantic-speech=\"upper L a 0.67 upper S r\" data-semantic-type=\"infixop\"&gt;&lt;msub data-semantic-=\"\" data-semantic-children=\"0,1\" data-semantic-parent=\"5\" data-semantic-role=\"unknown\" data-semantic-type=\"subscript\"&gt;&lt;mi data-semantic-=\"\" data-semantic-font=\"normal\" data-semantic-parent=\"2\" data-semantic-role=\"unknown\" data-semantic-type=\"identifier\"&gt;La&lt;/mi&gt;&lt;mn data-semantic-=\"\" data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"normal\" data-semantic-parent=\"2\" data-semantic-r","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"23 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147630816","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}

{"title":"Amino Acid Hydrochloride-Mediated Self-Assembled Monolayers for High-Performance Inverted Perovskite Solar Cells","authors":"Xueqi Wu, Xin Li, Huanyu Zhang, Yitong Liu, Yige Peng, Yi Ji, Yurou Zhang, Zewu Feng, Chenghao Ge, Yanbo Wang, Yansen Guo, Hailong Huang, Shuilong Kang, Yuan Fang, Jing Chen, Weichang Zhou, Dongsheng Tang, Yu Zeng, Chaopeng Huang, Zhongyao Jiang, Haifeng Gao, Qiang Zhang, Jingsong Sun, Youyong Li, Xiao-Hong Zhang, Jun Peng","doi":"10.1002/aenm.70925","DOIUrl":"https://doi.org/10.1002/aenm.70925","url":null,"abstract":"The rapid development of self-assembled monolayers (SAMs) has been instrumental in advancing the power conversion efficiency (PCE) of inverted perovskite solar cells (PSCs) to exceed 26%. However, benchmark SAMs are limited by stochastic assembly kinetics and weak interfacial coupling with the perovskite, which induce severe interfacial recombination and compromise device stability. Here, we developed an amino acid hydrochloride (AAH)-mediated SAM to construct high-performance PSCs. By systematically modulating the AAH alkyl spacer length, we elucidate an optimal steric profile that balances thermodynamic anchoring with kinetic intermolecular organization. This optimized AAH-mediated SAM exhibits enhanced coverage, uniformity, and molecular packing density, stabilizing the interface via reduced defect density and refined energy level alignment. Moreover, the AAH terminal ammonium (–NH₃⁺Cl⁻) moieties establish a chemical bridge with the perovskite, effectively passivating interfacial defects and promoting stress-free crystallization. Consequently, the devices based on AAH-mediated SAMs delivered a champion PCE of 26.87% (certified at 26.33%) on a 0.058 cm² area and 25.90% on a 1-cm² area. Encapsulated device exhibited excellent operational stability, retaining over 97.3% of its initial efficiency after 1100 h of continuous operation at the maximum power point in air.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"217 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147630824","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}

{"title":"Isocyanate Chemistry Enables a Stable Electrode-Electrolyte Interface for Potassium Metal Batteries","authors":"Yihan Gui, Miao Jiang, Yingjin Zhao, Jinhui Li, Songlin Tian, Hua Wang, Yujie Zhu, Limin Chang, Ping Nie, Lin Guo","doi":"10.1002/aenm.70912","DOIUrl":"https://doi.org/10.1002/aenm.70912","url":null,"abstract":"Potassium metal batteries (KMBs) have currently been regarded as one of the most promising energy storage devices for achieving high energy density. However, some inevitable challenges including high reactivity of metallic potassium, dendrite growth, and huge volume expansion impose a heavy burden on potassium metal batteries. Herein, an isocyanate molecule – 4-(trifluoromethoxy)phenyl isocyanate (TPI) is proposed to tailor the electrolyte solvation structure and interfacial chemistry in KMBs for the first time. The as-obtained electrolyte exhibits enhanced ionic conductivity, excellent electrode wettability and high exchange current density. Due to the energy levels difference, TPI preferentially accepts or donates electrons and undergoes redox reactions faster, thereby reducing the excessive decomposition of solvent molecules. Moreover, its inherent excellent film-forming property could form a protective layer at the electrode interface, effectively inhibiting the electrolyte decomposition and the adverse reactions caused by potassium metal. When assembled symmetrical batteries, at a current density of 0.5 mA cm⁻² and 0.5 mAh cm⁻², the electrolyte could stably run for more than 1400 h. The PTCDA||K full-cells could cycle 2000 times with good stability, and the Coulombic efficiency remained at approximately 99.84%. This strategy presents a promising pathway toward achieving performance metrics in KMBs.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"63 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147620238","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}