ACS Materials Letters最新文献

Stepwise Structural Relaxation in Battery Active Materials. 电池活性材料的逐步结构松弛。

IF 9.6 1区化学

ACS Materials Letters Pub Date : 2024-12-23 eCollection Date: 2025-01-06 DOI: 10.1021/acsmaterialslett.4c02058

Amalie Skurtveit, Erlend Tiberg North, Heesoo Park, Dmitry Chernyshov, David S Wragg, Alexey Y Koposov

{"title":"Stepwise Structural Relaxation in Battery Active Materials.","authors":"Amalie Skurtveit, Erlend Tiberg North, Heesoo Park, Dmitry Chernyshov, David S Wragg, Alexey Y Koposov","doi":"10.1021/acsmaterialslett.4c02058","DOIUrl":"10.1021/acsmaterialslett.4c02058","url":null,"abstract":"Whenever the cycling of Li-ion batteries is stopped, the electrode materials undergo a relaxation process, but the structural changes that occur during relaxation are not well-understood. We have used operando synchrotron X-ray diffraction with a time resolution of 1.24 s to observe the structural changes that occur when the lithiation of graphite and LiFePO4 electrodes are interrupted. Assessing the kinetics of the relaxation processes coupled with molecular dynamics simulations allows us to identify three relaxation stages in graphite. The atomistic origin for the relaxation process within the partially lithiated graphite structure is driven by the reorganization of Li ions into Li clusters. Relaxation in LiFePO4 electrodes is considerably slower than for graphite, but the observed structural changes is also attributed to reorganization of Li ions. These insights highlight the nature of the structural changes that occur during relaxation and the importance of using operando structural studies to avoid misleading conclusions about the reaction mechanisms in battery materials.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"7 1","pages":"343-349"},"PeriodicalIF":9.6,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11707793/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142941429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Probing the Design Rules for Optimizing Electron Spin Relaxation in Densely Packed Triplet Media for Quantum Applications. 探讨密装三重态介质中优化电子自旋弛豫的设计规则。

IF 9.6 1区化学

ACS Materials Letters Pub Date : 2024-12-19 eCollection Date: 2025-01-06 DOI: 10.1021/acsmaterialslett.4c01465

Max Attwood, Yingxu Li, Irena Nevjestic, Phil Diggle, Alberto Collauto, Muskaan Betala, Andrew J P White, Mark Oxborrow

{"title":"Probing the Design Rules for Optimizing Electron Spin Relaxation in Densely Packed Triplet Media for Quantum Applications.","authors":"Max Attwood, Yingxu Li, Irena Nevjestic, Phil Diggle, Alberto Collauto, Muskaan Betala, Andrew J P White, Mark Oxborrow","doi":"10.1021/acsmaterialslett.4c01465","DOIUrl":"10.1021/acsmaterialslett.4c01465","url":null,"abstract":"Quantum technologies using electron spins have the advantage of employing chemical qubit media with tunable properties. The principal objective of material engineers is to enhance photoexcited spin yields and quantum spin relaxation. In this study, we demonstrate a facile synthetic approach to control spin properties in charge-transfer cocrystals consisting of 1,2,4,5-tetracyanobenzene (TCNB) and acetylated anthracene. We find that the extent and position of acetylation control the degree of charge-transfer and the optical band gap by modifying crystal packing and electronic structure. We further reveal that while the spin polarization of the triplet state is slightly reduced compared to prototypical Anthracene:TCNB, the phase memory (T m) and, for 9-acetylanthracene:TCNB spin-lattice relaxation (T 1) time, could be enhanced up to 2.4 times. Our findings are discussed in the context of quantum microwave amplifiers, known as masers, and show that acetylation could be a powerful tool for improving organic materials for quantum sensing applications.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"7 1","pages":"286-294"},"PeriodicalIF":9.6,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11707738/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142941428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

3D-Printable Elastomers for Real-Time Autonomous Self-Healing in Soft Devices. 用于软设备实时自主自修复的3d打印弹性体。

IF 9.6 1区化学

ACS Materials Letters Pub Date : 2024-12-03 eCollection Date: 2025-01-06 DOI: 10.1021/acsmaterialslett.4c01358

Joseph G Beckett, Carl J Thrasher, Joshua Michonski, Robert M Drexler, Sachin Babu, Allyson M Cox, Braeden J Windham, Zhenning Yu, Anesia D Auguste, Abhishek Shetty, Timothy H Osborn, Robert L Lowe, Laura A Sowards, Christopher A Crouse

{"title":"3D-Printable Elastomers for Real-Time Autonomous Self-Healing in Soft Devices.","authors":"Joseph G Beckett, Carl J Thrasher, Joshua Michonski, Robert M Drexler, Sachin Babu, Allyson M Cox, Braeden J Windham, Zhenning Yu, Anesia D Auguste, Abhishek Shetty, Timothy H Osborn, Robert L Lowe, Laura A Sowards, Christopher A Crouse","doi":"10.1021/acsmaterialslett.4c01358","DOIUrl":"10.1021/acsmaterialslett.4c01358","url":null,"abstract":"Photocurable self-healing elastomers are promising candidates for producing complex soft devices that can mend damage. However, the practicality of these materials is limited by reliance on external stimuli, custom synthesis, manual realignment, and multihour healing cycles. This paper introduces a tough 3D-printable hybrid acrylate/thiol-ene elastomer (prepared with commercially available precursors) that exhibits nearly instantaneous damage repair in the absence of external stimuli. This rapid, hydrogen bond-driven self-healing enables meaningful restoration of mechanical properties, including tensile strains up to 344% post-damage. Furthermore, structured herringbone grafts are showcased as a compelling strategy to enable cohesive failure away from healed interfaces, realizing up to 18× increases in toughness from only modest increases in interfacial surface area. Prototype soft robotic devices fabricated using vat photopolymerization demonstrate self-healing within seconds under ambient conditions and without external intervention. These results demonstrate a scalable strategy to provide real-time, autonomous functionality restoration in damaged soft devices.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"7 1","pages":"123-132"},"PeriodicalIF":9.6,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11707794/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142941426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nonconventional Full-Color Luminescent Polyurethanes: Luminescence Mechanism at the Molecular Orbital Level. 非常规全彩发光聚氨酯：分子轨道水平上的发光机制。

IF 9.6 1区化学

ACS Materials Letters Pub Date : 2024-11-21 eCollection Date: 2025-01-06 DOI: 10.1021/acsmaterialslett.4c02100

Nan Jiang, Ya-Jie Meng, Xin Pu, Chang-Yi Zhu, Shu-Han Tan, Yan-Hong Xu, You-Liang Zhu, Jia-Wei Xu, Martin R Bryce

{"title":"Nonconventional Full-Color Luminescent Polyurethanes: Luminescence Mechanism at the Molecular Orbital Level.","authors":"Nan Jiang, Ya-Jie Meng, Xin Pu, Chang-Yi Zhu, Shu-Han Tan, Yan-Hong Xu, You-Liang Zhu, Jia-Wei Xu, Martin R Bryce","doi":"10.1021/acsmaterialslett.4c02100","DOIUrl":"10.1021/acsmaterialslett.4c02100","url":null,"abstract":"The study of structure-activity relationships is a top priority in the development of nontraditional luminescent materials. In this work, nonconjugated polyurethanes (PUs) with full-color emission (red, green, and blue) are easily obtained by control of the diol monomer structure and the polymerization conditions. Selected diol monomers introduced single, double, or triple bond repeating units into the main chain of the PUs, in order to understand how unsaturated bonds and H-bonds affect their luminescence from a molecular orbital viewpoint. Detailed experimental and theoretical results show that the PUs have different temperature-dependent behaviors related to the interplay of H-bonding, through-space n-π interactions, and aggregation properties. The potential applications of PUs in colorful displays, covert information transmission, and multifunctional bioimaging have been verified. This work provides a new general protocol for the simple preparation of multifunctional nonconventional fluorescent polymers and deepens the understanding of their luminescence mechanisms.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"7 1","pages":"24-31"},"PeriodicalIF":9.6,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11707742/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142941427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Excitation Photon Energy-Dependent Carrier Multiplication in Graphite 石墨中激发光子能量依赖载流子倍增

IF 9.6 1区化学

ACS Materials Letters Pub Date : 2024-11-19 DOI: 10.1021/acsmaterialslett.4c0113310.1021/acsmaterialslett.4c01133

Shucai Xia, Huizhi Xie, Jialong Li, Weiqing Zhang, Zefeng Ren, Dongxu Dai, Xueming Yang and Chuanyao Zhou*,

{"title":"Excitation Photon Energy-Dependent Carrier Multiplication in Graphite","authors":"Shucai Xia, Huizhi Xie, Jialong Li, Weiqing Zhang, Zefeng Ren, Dongxu Dai, Xueming Yang and Chuanyao Zhou*, ","doi":"10.1021/acsmaterialslett.4c0113310.1021/acsmaterialslett.4c01133","DOIUrl":"https://doi.org/10.1021/acsmaterialslett.4c01133https://doi.org/10.1021/acsmaterialslett.4c01133","url":null,"abstract":"Due to the enhanced carrier–carrier interaction, carrier multiplication (CM) in graphitic materials is efficient and exhibits strong wavelength dependence. However, there is still a lack of direct evidence for excitation photon energy-dependent impact ionization, the origin of CM. In this work, time- and angle-resolved photoelectron spectroscopy has been used to measure the electron dynamics in graphite. We find the unusual preceding growth of electron signal in 0–0.35 eV compared with that in 0.35–0.70 eV and 0.70–1.05 eV during the absorption of UV (3.10 eV) pulses, unambiguously suggesting the occurrence of impact ionization. Such phenomena are much less significant under IR (1.55 eV) excitation. Taking into account the electron–phonon scatterings during the electron thermalization, the CM value is calculated to be 2.0 and 1.4 under UV and IR excitation, respectively. This work provides direct evidence for excitation photon energy-dependent impact ionization, which will benefit the potential applications of graphitic materials.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"6 12","pages":"5484–5491 5484–5491"},"PeriodicalIF":9.6,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142756575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Combining Electron Microscopy and Elemental Mapping for the Investigation of Zeolite Crystallization 结合电子显微镜和元素图谱研究沸石结晶

IF 9.6 1区化学

ACS Materials Letters Pub Date : 2024-11-19 DOI: 10.1021/acsmaterialslett.4c0169210.1021/acsmaterialslett.4c01692

Noemi Linares, Aseem Chawla, Rui Li, Jeffrey D. Rimer* and Javier García-Martínez*,

{"title":"Combining Electron Microscopy and Elemental Mapping for the Investigation of Zeolite Crystallization","authors":"Noemi Linares, Aseem Chawla, Rui Li, Jeffrey D. Rimer* and Javier García-Martínez*, ","doi":"10.1021/acsmaterialslett.4c0169210.1021/acsmaterialslett.4c01692","DOIUrl":"https://doi.org/10.1021/acsmaterialslett.4c01692https://doi.org/10.1021/acsmaterialslett.4c01692","url":null,"abstract":"An elemental mapping method using electron microscopy with energy dispersive X-ray spectroscopy has proved to be a versatile tool to track the crystallization of zeolites. We have observed that disparities in local concentration of inorganic structure-directing agent (e.g., alkali metal) is an effective indicator of the degree of crystallization in zeolites. In this study, we demonstrate this approach for zeolite ZSM-22 (TON) with very small crystal sizes (<1 μm), where the high spatial resolution of elemental mapping in combination with scanning transmission electron microscopy allows one to obtain a high sensitivity for the detection of early-stage crystals. The crystallization of TON proceeds through a primary alkali rich amorphous phase that evolves to a secondary poorly crystalline phase which already possesses the composition of the final zeolite crystals. This fact gives us the possibility to determine the onset of disorder-to-order transitions in individual crystals of materials, that are amorphous by X-ray diffraction.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"6 12","pages":"5479–5483 5479–5483"},"PeriodicalIF":9.6,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142756576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multiscale Covalent Organic Framework (COF) Films for Task-Specific Sensing in Multicomponent Gases 多尺度共价有机框架（COF）薄膜用于多组分气体的任务特异性传感

IF 9.6 1区化学

ACS Materials Letters Pub Date : 2024-11-18 DOI: 10.1021/acsmaterialslett.4c0167210.1021/acsmaterialslett.4c01672

Chengyue Yu, Lingyun Xu, Fanrong Zhao, Lei Kong, Yupeng Chen*, Lifang Li*, Zhongpeng Zhu* and Lei Jiang,

{"title":"Multiscale Covalent Organic Framework (COF) Films for Task-Specific Sensing in Multicomponent Gases","authors":"Chengyue Yu, Lingyun Xu, Fanrong Zhao, Lei Kong, Yupeng Chen*, Lifang Li*, Zhongpeng Zhu* and Lei Jiang, ","doi":"10.1021/acsmaterialslett.4c0167210.1021/acsmaterialslett.4c01672","DOIUrl":"https://doi.org/10.1021/acsmaterialslett.4c01672https://doi.org/10.1021/acsmaterialslett.4c01672","url":null,"abstract":"Gas sensing is vital for ecological protection in agriculture, early disease diagnosis in biomedicine, and safety in industrial production. Covalent organic frameworks (COFs), a new class of porous polymer materials, can be customized through specific ligand selection to tailor pore sizes and active sites, enabling them to selectively enrich and interact with targeted gas molecules, making them promising candidates for gas sensing. To advance their use in this field, it is essential to investigate the mechanisms of the complex interactions between COFs and target molecules as well as to improve COF film fabrication methods. This review outlines design strategies for COF films across multiscale: molecular interaction mechanisms, macroscopic interfacial synthesis methods, and microscale/nanoscale approaches such as double-layer films for filtration and micro/nanostructured films for improved gas transfer. Finally, several key research directions are proposed to improve the suitability of COF-based materials for gas sensing in complex environments.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"6 12","pages":"5454–5478 5454–5478"},"PeriodicalIF":9.6,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142756474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In Situ Assembly of Nanostructured Polyelectrolyte Coatings by Aqueous Phase Separation toward Outstanding Thermal Insulation and Fire Resistance 采用水相分离技术原位组装纳米结构聚电解质涂层以获得优异的隔热和耐火性能

IF 9.6 1区化学

ACS Materials Letters Pub Date : 2024-11-15 DOI: 10.1021/acsmaterialslett.4c0204110.1021/acsmaterialslett.4c02041

Wei Luo, Ting Wang*, Xue Gou, Jie Luo, Wenli An, Zhi-Cheng Fu, Jinni Deng, Hai-Bo Zhao* and Ming-Jun Chen*,

{"title":"In Situ Assembly of Nanostructured Polyelectrolyte Coatings by Aqueous Phase Separation toward Outstanding Thermal Insulation and Fire Resistance","authors":"Wei Luo, Ting Wang*, Xue Gou, Jie Luo, Wenli An, Zhi-Cheng Fu, Jinni Deng, Hai-Bo Zhao* and Ming-Jun Chen*, ","doi":"10.1021/acsmaterialslett.4c0204110.1021/acsmaterialslett.4c02041","DOIUrl":"https://doi.org/10.1021/acsmaterialslett.4c02041https://doi.org/10.1021/acsmaterialslett.4c02041","url":null,"abstract":"Flame-retardant surface treatments effectively reduce the fire hazard of polymeric foams but are plagued by high coating thickness and deterioration of inherent thermal insulation. Constructing a nanostructure can significantly enhance the thermal insulation of coatings, but current methods usually rely on toxic solvents and harsh conditions. Herein, we present a facile and eco-friendly strategy employing a Cu2+-assisted aqueous phase separation (APS) strategy for the assembly of nanostructured polyelectrolyte coatings in situ. Exploiting the multiple cross-linking interactions between Cu2+ and the polyelectrolyte complex (PEC), the unique nanosheet (∼200 nm) structure was assembled in the PEC coating. When coated on rigid polyurethane foam (RPUF), the thermal conductivity was reduced to 28.1 from 30.0 mW/m·K. Moreover, the coated RPUF manifests a limiting oxygen index of 36% and reduces heat/smoke release (>60%). This work provides a facile and eco-friendly strategy to cast flame-retardant nanostructured coatings for materials with excellent integrated performances.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"6 12","pages":"5418–5428 5418–5428"},"PeriodicalIF":9.6,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142756458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A New (Trifluoromethane)Sulfonylimide Single-Ion Conductor with PEG Spacer for All-Solid-State Lithium-Based Batteries 全固态锂基电池用新型（三氟甲烷）磺酰亚胺单离子导体与PEG间隔

IF 9.6 1区化学

ACS Materials Letters Pub Date : 2024-11-15 DOI: 10.1021/acsmaterialslett.4c0164710.1021/acsmaterialslett.4c01647

Gabriele Lingua, Vladislav Y. Shevtsov, Petr S. Vlasov, Laura Puchot, Claudio Gerbaldi* and Alexander S. Shaplov*,

{"title":"A New (Trifluoromethane)Sulfonylimide Single-Ion Conductor with PEG Spacer for All-Solid-State Lithium-Based Batteries","authors":"Gabriele Lingua, Vladislav Y. Shevtsov, Petr S. Vlasov, Laura Puchot, Claudio Gerbaldi* and Alexander S. Shaplov*, ","doi":"10.1021/acsmaterialslett.4c0164710.1021/acsmaterialslett.4c01647","DOIUrl":"https://doi.org/10.1021/acsmaterialslett.4c01647https://doi.org/10.1021/acsmaterialslett.4c01647","url":null,"abstract":"The choice of ionic-liquid-like monomers (ILM) for single-ion conducting polyelectrolytes (SICPs) is crucial for the performance of all-solid-state lithium batteries. In the current study, we propose a novel approach for development of SICPs via design and synthesis of a new ILM with long poly(ethylene oxide) spacer between methacrylic group and (trifluoromethane)sulfonylimide anion. Its homopolymer shows an ionic conductivity that is ∼5 orders of magnitude higher (9.2 × 10–8 S cm–1 at 25 °C), in comparison with previously reported analogues, while the conductivity of its random copolymer with poly(ethylene glycol)methyl ethermethacrylate reaches the levels of 10–6 and 10–5 S cm–1 at 25 and 70 °C, respectively. The copolymer provides excellent thermal (Tonset ≈ 200 °C) and electrochemical (4.5 V vs Li+/Li) stabilities, good compatibility with Li metal, and effective suppression of dendrite growth. Li/SICP/LiFePO4 cells are capable of reversibly operating at different C rates, demonstrating excellent Coulombic efficiency and retaining specific capacity upon prolonged charge/discharge cycling at a relatively high current rate (C/5) at 70 °C.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"6 12","pages":"5429–5437 5429–5437"},"PeriodicalIF":9.6,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsmaterialslett.4c01647","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142756526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A New (Trifluoromethane)Sulfonylimide Single-Ion Conductor with PEG Spacer for All-Solid-State Lithium-Based Batteries. 全固态锂基电池用新型（三氟甲烷）磺酰亚胺单离子导体与PEG间隔。

IF 9.6 1区化学

ACS Materials Letters Pub Date : 2024-11-15 eCollection Date: 2024-12-02 DOI: 10.1021/acsmaterialslett.4c01647

Gabriele Lingua, Vladislav Y Shevtsov, Petr S Vlasov, Laura Puchot, Claudio Gerbaldi, Alexander S Shaplov

{"title":"A New (Trifluoromethane)Sulfonylimide Single-Ion Conductor with PEG Spacer for All-Solid-State Lithium-Based Batteries.","authors":"Gabriele Lingua, Vladislav Y Shevtsov, Petr S Vlasov, Laura Puchot, Claudio Gerbaldi, Alexander S Shaplov","doi":"10.1021/acsmaterialslett.4c01647","DOIUrl":"10.1021/acsmaterialslett.4c01647","url":null,"abstract":"The choice of ionic-liquid-like monomers (ILM) for single-ion conducting polyelectrolytes (SICPs) is crucial for the performance of all-solid-state lithium batteries. In the current study, we propose a novel approach for development of SICPs via design and synthesis of a new ILM with long poly(ethylene oxide) spacer between methacrylic group and (trifluoromethane)sulfonylimide anion. Its homopolymer shows an ionic conductivity that is ∼5 orders of magnitude higher (9.2 × 10-8 S cm-1 at 25 °C), in comparison with previously reported analogues, while the conductivity of its random copolymer with poly(ethylene glycol)methyl ethermethacrylate reaches the levels of 10-6 and 10-5 S cm-1 at 25 and 70 °C, respectively. The copolymer provides excellent thermal (T onset ≈ 200 °C) and electrochemical (4.5 V vs Li+/Li) stabilities, good compatibility with Li metal, and effective suppression of dendrite growth. Li/SICP/LiFePO4 cells are capable of reversibly operating at different C rates, demonstrating excellent Coulombic efficiency and retaining specific capacity upon prolonged charge/discharge cycling at a relatively high current rate (C/5) at 70 °C.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"6 12","pages":"5429-5437"},"PeriodicalIF":9.6,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11616446/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142783342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0