Advanced Materials最新文献_第6页

Local Recruitment of Autologous Stem Cells via a Targeting Microgel for Precise Cartilage Repair without Surgery 利用靶向微凝胶局部募集自体干细胞进行软骨精确修复

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-06-03 DOI: 10.1002/adma.202505544

Gengming Zhang, Sihan He, Xiangming He, Xueyi Gong, Jiazhen Yin, Jiusheng Li, Hongqi Zhang, Hengyi Lu, Yunjia Wang, Bo Wang

{"title":"Local Recruitment of Autologous Stem Cells via a Targeting Microgel for Precise Cartilage Repair without Surgery","authors":"Gengming Zhang, Sihan He, Xiangming He, Xueyi Gong, Jiazhen Yin, Jiusheng Li, Hongqi Zhang, Hengyi Lu, Yunjia Wang, Bo Wang","doi":"10.1002/adma.202505544","DOIUrl":"https://doi.org/10.1002/adma.202505544","url":null,"abstract":"The treatment of advanced osteoarthritis (OA) remains clinically intractable due to the inability to regenerate multifocal cartilage defects, stemming from poor targeted recruitment of bone marrow-derived mesenchymal stem cells (BMSCs) and the absence of a sustained chondrogenic microenvironment at the injury sites. In this work, an antibody-mediated gelatin methacrylate-based hydrogel microsphere modified by TGFβ-affinity peptides (TRG microsphere) is developed, to precisely target and repair scattered cartilage injuries by only intraarticular injection without any surgical assistance. By leveraging the specific expression of type I collagen in OA cartilage lesions, the type I collagen antibodies anchoring on TRG's surface enable the specific and accurate targeting of the multiple injury areas that need regeneration. In the meantime, the TGFβ-affinity peptides incorporated in the TRG microsphere can capture the endogenous TGFβ, a growth factor that can recruit BMSCs and promote their differentiation, to precisely induce the hyaline-like cartilage regeneration locally. In a rat model of advanced OA, a single intra-articular injection of TRG microspheres can repair scattered cartilage defects, restore glycosaminoglycan deposition, and alleviate joint dysfunction. This study proposes an injection-based strategy that enables continuous recruitment of endogenous BMSCs for precise cartilage regeneration, eliminating complex invasive procedures and patient discomfort.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"19 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144202272","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 Robust Quantum Anomalous Hall Effect via Entropy-Engineering 通过熵工程剪裁鲁棒量子反常霍尔效应

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-06-03 DOI: 10.1002/adma.202503319

Syeda Amina Shabbir, Frank Fei Yun, Muhammad Nadeem, Xiaolin Wang

{"title":"Tailoring Robust Quantum Anomalous Hall Effect via Entropy-Engineering","authors":"Syeda Amina Shabbir, Frank Fei Yun, Muhammad Nadeem, Xiaolin Wang","doi":"10.1002/adma.202503319","DOIUrl":"https://doi.org/10.1002/adma.202503319","url":null,"abstract":"The development of quantum materials and the tailoring of their functional properties is of fundamental interest in materials science. Here, a new design concept is proposed for the robust quantum anomalous Hall (QAH) effect via entropy engineering in 2D magnets. As a prototypical example, the configurational entropy of monolayer transition metal trihalide VCl3 is manipulated by incorporating four different transition-metal cations [Ti,Cr,Fe,Co] into the honeycomb structure made of vanadium, such that all in-plane mirror symmetries, inversion and/or roto-inversion are broken. Monolayer VCl3 is a ferromagnetic Dirac half-metal in which spin-polarized Dirac dispersion at valley momenta is accompanied by bulk states at the Γ-point and thus the spin-orbit interaction-driven QAH phase does not exhibit fully gapped bulk band dispersion. Entropy-driven bandstructure renormalization, especially band flattening in combination with red- and blue-shifts at different momenta of the Brillouin zone and crystal-field effects, transforms Dirac half-metal to a Dirac spin-gapless semiconductor and leads to a robust QAH phase with fully gapped bulk band dispersion and, thus, a purely topological edge state transport without mixing with dissipative bulk channels. These findings provide a paradigm for designing entropy-engineered 2D materials for the realization of robust QAH effect and quantum device applications.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"31 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144202433","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

Breaking the Vicious Spiral to Suppress Oxygen Loss in Li-Rich Oxide Cathode Materials 打破恶性循环抑制富锂氧化物正极材料的氧损失

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-06-03 DOI: 10.1002/adma.202505724

Zhenjie Zhang, Yixin Li, Xi Shen, Lu Yang, Chu Zhang, Yuan Liu, Bowen Wang, Chang-Yang Kuo, Shu-Chih Haw, Chien-Te Chen, Chi-wen Pao, Hsiao-Yu Huang, Di-Jing Huang, Jiangwei Ju, Jun Ma, Zhiwei Hu, Yurui Gao, Xuefeng Wang, Richeng Yu, Zhaoxiang Wang, Liquan Chen

{"title":"Breaking the Vicious Spiral to Suppress Oxygen Loss in Li-Rich Oxide Cathode Materials","authors":"Zhenjie Zhang, Yixin Li, Xi Shen, Lu Yang, Chu Zhang, Yuan Liu, Bowen Wang, Chang-Yang Kuo, Shu-Chih Haw, Chien-Te Chen, Chi-wen Pao, Hsiao-Yu Huang, Di-Jing Huang, Jiangwei Ju, Jun Ma, Zhiwei Hu, Yurui Gao, Xuefeng Wang, Richeng Yu, Zhaoxiang Wang, Liquan Chen","doi":"10.1002/adma.202505724","DOIUrl":"https://doi.org/10.1002/adma.202505724","url":null,"abstract":"The irreversible oxygen loss (O-loss) hinders the application of oxygen redox (O-redox) cathode material in high-energy-density Li/Na-ion batteries. Although O-loss is commonly associated with O2 release, the underlying mechanism remains unclear, which is not a simple surface problem. Herein, the O-loss/redox behaviors of the layered Li2MnO3 and spinel Li4Mn5O12 are comparatively investigated through experiments and density functional theory (DFT) calculations. It shows that the vicious spiral between O─O dimerization and Mn migration drive the void growth, chain-like structural collapse, and O2 release in Li2MnO3. In contrast, the stable spinel framework and inert O in O-LiMn3 coordination of Li4Mn5O12 break this spiral and trap O2 within the bulk, ensuring a reversible O-redox. By atomically compositing Li4Mn5O12 with LiNi0.5Mn1.5O4, a novel Co-free Li-rich spinel oxide (LRSO) with high energy density (>1000 Wh kg−1) is produced. These findings clarify the correlation between structural rearrangement and O-redox and contribute to the design of advanced O-redox cathode materials.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"13 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144202435","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

Highly Exposed Ultra-Small High-Entropy Sulfides with d-p Orbital Hybridization for Efficient Oxygen Evolution 高暴露超小型高熵硫化物与d-p轨道杂化的高效析氧

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-06-03 DOI: 10.1002/adma.202508610

Huizhu Cai, Sizhen He, Hengpan Yang, Qian Huang, Fengting Luo, Qi Hu, Xue Zhang, Chuanxin He

{"title":"Highly Exposed Ultra-Small High-Entropy Sulfides with d-p Orbital Hybridization for Efficient Oxygen Evolution","authors":"Huizhu Cai, Sizhen He, Hengpan Yang, Qian Huang, Fengting Luo, Qi Hu, Xue Zhang, Chuanxin He","doi":"10.1002/adma.202508610","DOIUrl":"https://doi.org/10.1002/adma.202508610","url":null,"abstract":"Precise regulation of electronic structure and nanoscale geometry represents a transformative strategy for breaking the activity-stability trade-off in oxygen evolution electrocatalysts. Here, highly exposed ultra-small high-entropy sulfides (HES, 5.2 nm) confined in porous carbon nanofibers are designed. This structure involves a dual-engineering synergistic effect combining d-p orbital hybridization and nanoconfinement. X-ray absorption spectroscopy (XAS) and density functional theory (DFT) calculations reveal hybridization between transition metal 3d orbitals and sulfur 3p orbitals. This orbital interaction induces a d-band center shift toward the Fermi level and facilitates interfacial charge redistribution, endowing HES with superior electron-donating capability to accelerate proton-coupled electron transfer kinetics. Such electronic modulation significantly optimizes the adsorption of oxygen evolution reaction (OER) intermediates (*OH, *O, *OOH). Experimentally, the HES demonstrates exceptional OER performance, exhibiting a low overpotential of 200 mV at 10 mA cm−2 and remarkable durability with negligible current decay during 300 h operation across current densities ranging from 10 to 100 mA cm−2. This work establishes a dual optimization strategy leveraging orbital hybridization engineering and size engineering for advanced electrocatalyst design, providing a new design approach in energy conversion technologies.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"411 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144202436","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

Dopamine Dopes the Performance of Perovskite Solar Cells 多巴胺增强钙钛矿太阳能电池的性能

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-06-02 DOI: 10.1002/adma.202501075

Fatemeh Ansari, Likai Zheng, Lukas Pfeifer, Felix T. Eickemeyer, Shaik Mohammed Zakeeruddin, Nikolaos Lempesis, Virginia Carnevali, Andrea Vezzosi, Vladislav Sláma, Tristan Georges, Ummugulsum Gunes, Lyndon Emsley, Mohammad Khaja Nazeeruddin, Ursula Rothlisberger, Paul J. Dyson, Michael Grätzel

{"title":"Dopamine Dopes the Performance of Perovskite Solar Cells","authors":"Fatemeh Ansari, Likai Zheng, Lukas Pfeifer, Felix T. Eickemeyer, Shaik Mohammed Zakeeruddin, Nikolaos Lempesis, Virginia Carnevali, Andrea Vezzosi, Vladislav Sláma, Tristan Georges, Ummugulsum Gunes, Lyndon Emsley, Mohammad Khaja Nazeeruddin, Ursula Rothlisberger, Paul J. Dyson, Michael Grätzel","doi":"10.1002/adma.202501075","DOIUrl":"https://doi.org/10.1002/adma.202501075","url":null,"abstract":"The electron transport layer (ETL) is a crucial component of perovskite solar cells (PSCs) as it greatly influences their photovoltaic performance. Among various currently used ETL materials, SnO₂ stands out due to its unique advantages, including low-temperature fabrication and rapid electron extraction capability and excellent energy match of its conduction band edge with that of the commonly used perovskite formulations. However, the currently employed SnO₂ layers contain surface defects, such as hydroxyl groups and oxygen vacancies that impair the desired growth of highly crystalline and defect less perovskite films during solution processing of n-i-p type PSCs reducing their power conversion efficiency (PCE) and stability. Here, a self-assembled monolayer (SAM) is introduced of dopamine hydrochloride (DACl) on the SnO2 film, whose catechol moiety adheres strongly to the SnO2 surface, while its methylammonium groups template the growth of the perovskite layer. Introducing the dopamine SAM at the interface between the ETL and the perovskite increases substantially the solar-to-electric PCE while greatly enhancing the PSC stability. This findings demonstrate the surprising benefits of this well-known neurotransmitter for the photovoltaic performance of PSCs which this is rationalized here by DFT and ab initio molecular dynamics calculations.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"51 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144193090","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

Tailored Design of Mesoporous Metal Organic Framework Single Crystals by Kinetics-Mediated Micelle Assembly for Efficient Asymmetrical Single-Atom Catalysis 基于动力学介导胶束组装的介孔金属有机框架单晶的定制设计，用于高效不对称单原子催化

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-06-02 DOI: 10.1002/adma.202500370

Xin Wang, Siyuan Zhang, Musen Li, Ying Wan, Zhihao Sun, Ruchen Li, Zijia Zhu, Hao Wu, Zaiwang Zhao, Shunbo Hu, Fanxing Bu, Dongliang Chao, Wei Luo

{"title":"Tailored Design of Mesoporous Metal Organic Framework Single Crystals by Kinetics-Mediated Micelle Assembly for Efficient Asymmetrical Single-Atom Catalysis","authors":"Xin Wang, Siyuan Zhang, Musen Li, Ying Wan, Zhihao Sun, Ruchen Li, Zijia Zhu, Hao Wu, Zaiwang Zhao, Shunbo Hu, Fanxing Bu, Dongliang Chao, Wei Luo","doi":"10.1002/adma.202500370","DOIUrl":"https://doi.org/10.1002/adma.202500370","url":null,"abstract":"Constructing mesoporous metal organic frameworks (MesoMOFs) with customizable meso- and micro-environment is pivotal for asymmetric single-atom catalysis, yet it is impeded by the strong self-growth tendency of MOFs. In this work, a novel kinetics-mediated micelle assembly strategy is introduced to realize the general fabrication of mesoporous zeolitic imidazolate framework (ZIF) single crystals. Spectroscopic characterizations and cryo-electron cryomicroscopy reveal that the strategic use of water accelerates the MOFs kinetics-mediated micelle assembly via enhancing ligand deprotonation, which suppresses the MOFs self-growth, facilitating the cooperative assembly of micelles and MOFs. Furthermore, the water amount can modulate the Flory-Huggins interaction parameters between the solvents and micelles, thereby precisely controlling the pore architectures from spherical, cylindrical to vesicular. Such versatile synthesis creates a new class of mesoporous asymmetric CoN3O single-atom catalyst. Synchrotron spectral characterizations and theoretical calculations uncover that this asymmetric geometry localizes more electrons around Co center and upshift the d-band center, stabilizing O* intermediates and promoting the oxygen reduction reaction (ORR). Consequently, the asymmetric mesoporous catalyst exhibits a half-wave potential (0.91 V in alkaline media) and a high power density (185 mW cm−2) in a zinc-air battery. This work provides a new approach for designing MesoMOFs for asymmetric single-atom catalysis.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"35 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144202438","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

Vectorial Fluorescence Control with Light-Emitting Metasurfaces for Unidirectional Emission and Incoherent Holography 用于单向发射和非相干全息的发光超表面矢量荧光控制

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-06-02 DOI: 10.1002/adma.202502682

Zejing Wang, Shuai Wan, Yangyang Shi, Zhongyang Li

{"title":"Vectorial Fluorescence Control with Light-Emitting Metasurfaces for Unidirectional Emission and Incoherent Holography","authors":"Zejing Wang, Shuai Wan, Yangyang Shi, Zhongyang Li","doi":"10.1002/adma.202502682","DOIUrl":"https://doi.org/10.1002/adma.202502682","url":null,"abstract":"Ultracompact light emission manipulation is crucial for various applications, including illumination, biosensing, and quantum photonics. Despite significant advancements in lasing manipulation, achieving complex vectorial wavefront control over fluorescence emission is inherently challenging due to its incoherent, omnidirectional, unpolarized, and phase-random emission characteristics. Here, the light-emitting metasurfaces (LEMs), equipped with vectorial manipulation and complex amplitude encoding capabilities, are introduced to realize unidirectional emission and incoherent photoluminescence (PL) holography. Through engineering the interaction between the LEM and guided PL, the diffraction angle, linear polarization state, and emission intensity of PL unidirectional emission are independently controlled. Furthermore, the phase encoding capability of LEM, combined with the enhanced spatial coherence of guided PL, experimentally enabled vectorial PL holography alongside polarization-multiplexed nanoprinting. This versatile LEM platform provides a simplified approach to vectorial PL manipulation, promising multiple potential applications in nanophotonics and light-emitting devices.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"29 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144193087","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

Intensive Widmannstätten Nanoprecipitates Catalyze SnTe With State-of-the-Art Thermoelectric Performance 密集Widmannstätten纳米沉淀物催化SnTe具有最先进的热电性能

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-06-02 DOI: 10.1002/adma.202503918

Tu Lyu, Xiao-Lei Shi, Lipeng Hu, Moran Wang, Jiaying Peng, Siyuan Song, Haoran Luo, Wenyi Chen, Meng Li, Feng Rao, Zhi-Gang Chen

{"title":"Intensive Widmannstätten Nanoprecipitates Catalyze SnTe With State-of-the-Art Thermoelectric Performance","authors":"Tu Lyu, Xiao-Lei Shi, Lipeng Hu, Moran Wang, Jiaying Peng, Siyuan Song, Haoran Luo, Wenyi Chen, Meng Li, Feng Rao, Zhi-Gang Chen","doi":"10.1002/adma.202503918","DOIUrl":"https://doi.org/10.1002/adma.202503918","url":null,"abstract":"Nanoprecipitates play a vital role in designing high-performance thermoelectric materials, particularly for those with short phonon mean-free paths. However, their effectiveness in reducing lattice thermal conductivity is hindered by the uncontrollable intensity, poor interfacial coherence, and suboptimal morphology. To address these limitations, AgPbSbTe3 is used to alloy SnTe to form intensive Ag2Te Widmannstätten nanoprecipitates for obtaining state-of-the-art thermoelectric performance. Advanced microscopy characterizations reveal the crystallographic orientation relationships between SnTe and Ag2Te to guide the lath-shaped morphology of Ag2Te, leading to the formation of the high-intensity Widmannstätten nanoprecipitates, which effectively scatter phonons to reduce the lattice thermal conductivity. Togethering the optimized electrical properties through carrier concentration adjustment, band convergence, and the energy filtering effect, a maximum figure of merit ZT of 1.5 at 723 K and an average ZT of 1.1 between 423 and 823 K is achieved in (SnTe)0.80(Ag1.05PbSb0.95Te3)0.20, enabling a single-leg device and two-pair module with energy-conversion efficiency of 7.22% and 4.26% under a temperature difference of 450 K, respectively. The findings highlight the potential of intensive Widmannstätten nanoprecipitates as effective phonon scattering centers, providing a new pathway to enhance the thermoelectric performance of chalcogenides.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"47 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144193089","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

Light‐Fueled In‐Operando Shape Reconfiguration, Fixation, and Recovery of Magnetically Actuated Microtextured Covalent Adaptable Networks 磁驱动微结构共价自适应网络的光燃料结构重构、固定和恢复

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-06-02 DOI: 10.1002/adma.202503161

Yeomyung Yoon, Hojun Moon, Woongbi Cho, Dongwook Lee, Sohdam Jeong, Jeong Jae Wie, Chae Bin Kim

{"title":"Light‐Fueled In‐Operando Shape Reconfiguration, Fixation, and Recovery of Magnetically Actuated Microtextured Covalent Adaptable Networks","authors":"Yeomyung Yoon, Hojun Moon, Woongbi Cho, Dongwook Lee, Sohdam Jeong, Jeong Jae Wie, Chae Bin Kim","doi":"10.1002/adma.202503161","DOIUrl":"https://doi.org/10.1002/adma.202503161","url":null,"abstract":"Covalent adaptable networks (CANs) enable reprocessability via dynamic bond exchange above their topology freezing transition temperature (Tv) despite chemical crosslinks. However, conventional CANs often exhibit insufficient viscosity reduction upon heating, necessitating extensive application of heat and pressure through direct contact for processing. In this study, a disulfide‐bonded CAN is introduced to facilitate UV‐assisted processing at room temperature, in addition to conventional thermal processing above Tv. At room temperature, UV irradiation accelerates stress relaxation, mirroring the effect of high‐temperature activation (> Tv = 86 °C) without UV. Molecular dynamics (MD) simulation also reveals the underlying mechanism of UV‐ and heat‐induced dynamic bond exchange. By incorporating magnetic NdFeB particles, magnetomechanical actuation of CAN/NdFeB microarrays is achieved. Unlike conventional approaches which rely on binders to maintain actuated shapes after removal of magnetic field, this system enables in‐operando UV‐fueled shape reconfiguration and fixation through dynamic bond exchange at room temperature, with reversible recovery of the original architectures on‐demand. Furthermore, photoresponsivity allows for contactless spatiotemporal control over dynamic bond exchanges and resultant microarchitectures via a masking technique. This strategy offers facile, patternable 3D microfabrication and binder‐free homologous shape‐fixation in dry conditions without external pressure.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"29 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144192890","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

Revealing the Underlying Role of Li2CO3 in Enhancing Performance of Oxyhalide-Based Solid-State Batteries 揭示Li2CO3在提高卤化氧基固态电池性能中的潜在作用

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-06-02 DOI: 10.1002/adma.202502067

Han Wu, Jie Qu, Xiaolong Yan, Simeng Zhang, Xingyu Wang, Jianwen Liang, Nian Zhang, Bona Dai, Junyi Yue, Tianlu Pang, Tao Mei, Yongrui Luo, Hao Lai, Xinmiao Wang, Liyu Zhou, Shuo Wang, Xueliang Sun, Xiaona Li

{"title":"Revealing the Underlying Role of Li2CO3 in Enhancing Performance of Oxyhalide-Based Solid-State Batteries","authors":"Han Wu, Jie Qu, Xiaolong Yan, Simeng Zhang, Xingyu Wang, Jianwen Liang, Nian Zhang, Bona Dai, Junyi Yue, Tianlu Pang, Tao Mei, Yongrui Luo, Hao Lai, Xinmiao Wang, Liyu Zhou, Shuo Wang, Xueliang Sun, Xiaona Li","doi":"10.1002/adma.202502067","DOIUrl":"https://doi.org/10.1002/adma.202502067","url":null,"abstract":"Residual lithium compounds (RLCs) in all-solid-state batteries (ASSBs) employing Ni-rich cathode materials (LiNixCoyMnzO2, NCM) are traditionally viewed either as ionically and electronically insulating layers hindering electrochemical performance or as protective buffer layers enhancing cycling stability. In this study, a beneficial role of Li2CO3 in ASSBs featuring an oxyhalide-based AlOCl-2LiCl (LAOC) solid-state electrolyte (SSE) is revealed. ASSBs containing NCM with residual Li2CO3 demonstrate superior electrochemical performance compared to those treated with a washing pretreatment to remove Li2CO3. Solid-state nuclear magnetic resonance (ssNMR) spectroscopy shows that Li2CO3 facilitates spontaneous Li+ exchange at multiple sites within the LAOC SSE. This leads to faster ion mobility and shorter relaxation times at various lithium sites, indicating enhanced ion transport and improved interface dynamics. Moreover, the beneficial effects of Li2CO3 are confirmed in other halide-based ASSBs. This study uncovers an unexpected role for Li2CO3 in halide-based ASSBs, offering insights that may inspire further exploration of RLCs with functional properties for improving ASSBs performance.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"26 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144193086","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