ACS Applied Energy Materials最新文献_第5页

A Rigid–Flexible Network Binder with Multiple Hydrogen Bond Interactions for High-Performance Silicon Anodes 高性能硅阳极中具有多重氢键相互作用的刚柔网络粘结剂

IF 5.4 3区材料科学

ACS Applied Energy Materials Pub Date : 2025-04-08 DOI: 10.1021/acsaem.5c0013810.1021/acsaem.5c00138

Xiaocheng Li, Qionghua Yuan, Gamini Rajapaske, Juan Liu, Haozhen Li, Pengbo Xiao, Xiaoyu Zhao, Fangfang Wang*, Neng-Wen Ding and Dmytro Sydorov,

{"title":"A Rigid–Flexible Network Binder with Multiple Hydrogen Bond Interactions for High-Performance Silicon Anodes","authors":"Xiaocheng Li, Qionghua Yuan, Gamini Rajapaske, Juan Liu, Haozhen Li, Pengbo Xiao, Xiaoyu Zhao, Fangfang Wang*, Neng-Wen Ding and Dmytro Sydorov, ","doi":"10.1021/acsaem.5c0013810.1021/acsaem.5c00138","DOIUrl":"https://doi.org/10.1021/acsaem.5c00138https://doi.org/10.1021/acsaem.5c00138","url":null,"abstract":"Silicon (Si) is widely regarded as the most promising anode material for next-generation lithium-ion batteries due to its exceptionally high theoretical specific capacity. However, its practical application is severely hindered by the substantial volume changes and stresses induced during the (de)lithiation process. In this study, to enhance the stability of silicon anodes, a spiderweb-like rigid–flexible three-dimensionally cross-linked network binder, PA2X1, is developed through the in situ cross-linking of rigid poly(acrylic acid) (PAA) with flexible carboxylated acrylonitrile-butadiene rubber (XNBR). The flexible XNBR accommodates significant volume changes of Si species during (de)lithiation, while the rigid PAA serves as a structural backbone, effectively buffering mechanical stresses and preserving the mechanical integrity of the Si-based electrode throughout the cycling process. With the aid of the synergistic effect of rigidity and flexibility, the Si@PA2X1 electrode exhibits a limited thickness change of only 13.8% after 100 cycles at a current density of 0.5 A g–1. Remarkably, it retains a high reversible capacity of 1469 mAh g–1, with a high capacity retention of 71.7% after 300 cycles at 1000 mA g–1, demonstrating exceptional structural integrity and cycling stability. Therefore, this rigid–flexible 3D network binder offers a promising strategy for advancing lithium-ion batteries with improved capacity and extended cycle life.","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 8","pages":"5199–5208 5199–5208"},"PeriodicalIF":5.4,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Boosting Photocatalytic Water Vapor Splitting by Nanosecond Infrared Laser-Assisted Synthesis of Photothermal Substrate 纳秒红外激光辅助合成光热衬底促进光催化水蒸气分裂

IF 5.4 3区材料科学

ACS Applied Energy Materials Pub Date : 2025-04-08 DOI: 10.1021/acsaem.5c0014410.1021/acsaem.5c00144

Liang Li, Piyu Gong, Yan Zhang, Congcong Liang, Zeyan Wang, Peng Wang, Yuanyuan Liu, Hefeng Cheng, Ying Dai, Zhaoke Zheng* and Baibiao Huang*,

{"title":"Boosting Photocatalytic Water Vapor Splitting by Nanosecond Infrared Laser-Assisted Synthesis of Photothermal Substrate","authors":"Liang Li, Piyu Gong, Yan Zhang, Congcong Liang, Zeyan Wang, Peng Wang, Yuanyuan Liu, Hefeng Cheng, Ying Dai, Zhaoke Zheng* and Baibiao Huang*, ","doi":"10.1021/acsaem.5c0014410.1021/acsaem.5c00144","DOIUrl":"https://doi.org/10.1021/acsaem.5c00144https://doi.org/10.1021/acsaem.5c00144","url":null,"abstract":"Solar-driven hydrogen production is considered a promising solution to the current energy crisis and environmental pollution. The efficiency of photocatalytic water splitting for hydrogen production can be improved by constructing an effective biphase photocatalytic system. In this study, laser-ablated wood was used as a photothermal substrate that effectively generates water vapor below the boiling point of water. When integrated with TiO2 in a photothermal–photocatalytic system, it achieves a hydrogen production rate of 42.4 mmol m–2 h–1 under an irradiance of 3 kW m–2. To obtain a photothermal substrate with high evaporation efficiency, nanosecond infrared (ns IR) laser ablation was employed to treat the surface of the wood, leveraging its strong thermal effects to cleave the C–C bonds in lignin and other polymers. This process resulted in instantaneous selective oxidation to CO, exposing the internal pore structure of the wood. Additionally, laser ablation enhanced the carbonization of the surface of the wood, leading to improved light absorption and water evaporation performance of the ablated wood. FT-IR analysis revealed a strong interaction between the hydroxyl groups on the surface of the laser-ablated wood and TiO2 through hydrogen bonding, effectively preventing the detachment of the photocatalyst. This solid–gas biphase system, consisting of photocatalyst, water vapor, and hydrogen, exhibits lower reaction resistance and significantly enhances catalytic activity, highlighting its great potential for future applications in solar-driven hydrogen production.","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 8","pages":"5190–5198 5190–5198"},"PeriodicalIF":5.4,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Designing Lithium-Decorated Aza-Triphenylene-Based Covalent Organic Frameworks for High-Capacity Hydrogen Storage: A Computational Study 设计高容量储氢锂装饰氮杂三苯基共价有机框架：计算研究

IF 5.4 3区材料科学

ACS Applied Energy Materials Pub Date : 2025-04-08 DOI: 10.1021/acsaem.4c0313610.1021/acsaem.4c03136

Amrutha M, Shakti S. Ray, Musharaf Ali Sheikh and Brahmananda Chakraborty*,

{"title":"Designing Lithium-Decorated Aza-Triphenylene-Based Covalent Organic Frameworks for High-Capacity Hydrogen Storage: A Computational Study","authors":"Amrutha M, Shakti S. Ray, Musharaf Ali Sheikh and Brahmananda Chakraborty*, ","doi":"10.1021/acsaem.4c0313610.1021/acsaem.4c03136","DOIUrl":"https://doi.org/10.1021/acsaem.4c03136https://doi.org/10.1021/acsaem.4c03136","url":null,"abstract":"In this study, we explore the potential of lithium-decorated aza-triphenylene-based covalent organic frameworks (AzaCOF) for efficient hydrogen storage applications. By decorating each unit cell of aza-triphenylene COF with six lithium (Li) atoms, a high hydrogen storage capacity of up to 9.49 wt % can be achieved, with each Li atom capable of adsorbing up to five H2 molecules. The average adsorption energy of H2 on the Li-decorated AzaCOF is approximately −0.30 eV/H2, indicating an optimal interaction that balances hydrogen adsorption and desorption for practical storage and release, meeting the U.S. Department of Energy (DOE) guidelines for potential hydrogen storage mechanism. The strong interaction of Li with the AzaCOF arises from charge transfer from Li to the two-dimensional (2D) framework, while the enhanced adsorption energy is attributed to an electric field-induced polarization that facilitates assisted van der Waals interactions. The thermodynamic stability was confirmed by ab initio molecular dynamic simulation at 300 K and dynamic stability by computing phonon spectrum with all positive phonon frequencies. A high diffusion energy barrier of 4.09 eV may prevent Li atoms from migrating and clustering on the AzaCOF surface. Vapor pressure calculations suggest that the desorption temperature is above room temperature (330–360 K), making it a potential candidate for onboard, reversible hydrogen storage. This work provides a theoretical basis for experimental investigations into Li-decorated AzaCOF as advanced hydrogen storage materials.","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 8","pages":"5031–5044 5031–5044"},"PeriodicalIF":5.4,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

A Dual Layer of NiOx Hole-Transporting Material Boosting the Efficiency of Inverted Perovskite Solar Cells up to 20.7% 双层NiOx空穴传输材料将倒置钙钛矿太阳能电池效率提高至20.7%

IF 5.4 3区材料科学

ACS Applied Energy Materials Pub Date : 2025-04-07 DOI: 10.1021/acsaem.5c0031210.1021/acsaem.5c00312

Da-Wei Kuo, and , Chin-Ti Chen*,

{"title":"A Dual Layer of NiOx Hole-Transporting Material Boosting the Efficiency of Inverted Perovskite Solar Cells up to 20.7%","authors":"Da-Wei Kuo,  and , Chin-Ti Chen*, ","doi":"10.1021/acsaem.5c0031210.1021/acsaem.5c00312","DOIUrl":"https://doi.org/10.1021/acsaem.5c00312https://doi.org/10.1021/acsaem.5c00312","url":null,"abstract":"For the hole transport material (HTM) of methylammonium lead(II) triiodide (MAPbI3)-inverted perovskite solar cells (PVSCs), we have demonstrated that a dual layer of NiOx, a nanoporous NiOx (np-NiOx) on a compact NiOx (cp-NiOx), outperforms a single layer of cp-NiOx. With a dual layer of cp/np-NiOx HTM, we have achieved a PCE as high as 20.7%, which is one of the highest PCEs among inverted PVSCs using NiOx as HTM without doping NiOx or an interlayer between NiOx and the perovskite. In this report, scanning electron microscopy (SEM), atomic force microscopy (AFM), and photoluminescence (PL) spectroscopy have demonstrated that the interfacial contact of MAPbI3 is better with np-NiOx than with cp-NiOx. Direct current conductivity measurements showed a higher conductivity of cp/np-NiOx compared to cp-NiOx. A deeper HOMO energy level was found for cp/np-NiOx compared to cp-NiOx. The space-charge limited current (SCLC) method estimated a higher trap-state density in cp-NiOx than in cp/np-NiOx. The studies of light intensity-dependent open-circuit voltage (VOC) and short-circuit current density (JSC) revealed a less charge recombination in cp/np-NiOx than in cp-NiOx PVSCs. We have also found and verified that using a larger volume of the ethylenediamine stabilizer in the preparation of np-NiOx results in a higher-performance cp/np-NiOx HTM.","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 8","pages":"5309–5316 5309–5316"},"PeriodicalIF":5.4,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsaem.5c00312","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Alginate-Based Electrospun Nanofiber for Sustainable High Ionic Conductivity Lithium–Ion Battery Separator 海藻酸盐基静电纺纳米纤维用于可持续高离子电导率锂离子电池隔膜

IF 5.4 3区材料科学

ACS Applied Energy Materials Pub Date : 2025-04-07 DOI: 10.1021/acsaem.4c0222210.1021/acsaem.4c02222

Ahmad Miftahul Anwar, Faiq Haidar Hamid, Afriyanti Sumboja and Lia A. T. W. Asri*,

{"title":"Alginate-Based Electrospun Nanofiber for Sustainable High Ionic Conductivity Lithium–Ion Battery Separator","authors":"Ahmad Miftahul Anwar, Faiq Haidar Hamid, Afriyanti Sumboja and Lia A. T. W. Asri*, ","doi":"10.1021/acsaem.4c0222210.1021/acsaem.4c02222","DOIUrl":"https://doi.org/10.1021/acsaem.4c02222https://doi.org/10.1021/acsaem.4c02222","url":null,"abstract":"Commercial Li–ion battery separators made from polypropylene (PP) and polyethylene (PE) present sustainability issues with limited ionic conductivity. Alginate (Alg), a biobased polymer, offers sustainability by its natural abundance and biodegradability. It also offers ionic conductivity improvement through the presence of hydroxyl and carboxylate functional groups. In this study, we fabricate an Alg-based nanofiber separator using electrospinning to enhance the specific surface area of the separator, exposing more functional groups on the surface. The presence of Alg on the electrospun separator resulted in superior ionic conductivity of 2.65 and 5.97 mS cm–1 for poly(vinyl alcohol) (PVA)-Alg20 and PVA-Alg40, respectively. Even further, PVA-Alg40 demonstrated excellent electrochemical stability and consistent Li plating/stripping performance for up to 1000 h. Additionally, in LFP/Li cells, the PVA-Alg40 separator maintained stable capacity (charging and discharging capacities stabilizing around 150 and 140 mAh g–1) and high Coulombic efficiency (95–100%) over 140 cycles of charge–discharge test. This study highlights the potential of Alg-based separators as a sustainable and effective alternative to conventional separators in Li–ion batteries.","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 8","pages":"4954–4961 4954–4961"},"PeriodicalIF":5.4,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Application of Laser-Perforated Titanium Foils in Polymer Electrolyte Membrane Water Electrolysis 激光穿孔钛箔在聚合物电解质膜电解中的应用

IF 5.4 3区材料科学

ACS Applied Energy Materials Pub Date : 2025-04-07 DOI: 10.1021/acsaem.5c0055610.1021/acsaem.5c00556

Arnd Garsuch*, Malte Kumkar, Marc Sailer, Matthias F. Ernst, Pawel Garkusha, Jonas Mayer and Max Kahmann,

引用次数: 0

Designing Electrodes with No Ionomers: A Perspective on Ionomer-Free Electrodes for Proton-Exchange-Membrane Water Electrolyzers 无离聚体电极的设计：质子交换膜水电解槽无离聚体电极的展望

IF 5.4 3区材料科学

ACS Applied Energy Materials Pub Date : 2025-04-07 DOI: 10.1021/acsaem.5c0042510.1021/acsaem.5c00425

Abdullah Tayyem, and , Jason K. Lee*,

{"title":"Designing Electrodes with No Ionomers: A Perspective on Ionomer-Free Electrodes for Proton-Exchange-Membrane Water Electrolyzers","authors":"Abdullah Tayyem,  and , Jason K. Lee*, ","doi":"10.1021/acsaem.5c0042510.1021/acsaem.5c00425","DOIUrl":"https://doi.org/10.1021/acsaem.5c00425https://doi.org/10.1021/acsaem.5c00425","url":null,"abstract":"Proton-exchange-membrane water electrolyzer (PEMWE) is a promising technology for producing clean hydrogen as it offers high current operation, compact design, and ability to operate with intermittent renewable energy. However, high costs related to platinum group metal (PGM) usage and titanium components pose a bottleneck in further scale-up of PEMWEs. This perspective introduces an ionomer-free PEMWE system as a viable approach to facilitate scale-up and cost reduction of PEMWEs. In conventional PEMWEs, ionomers serve as binders for the electrodes as well as a medium to conduct protons. However, most ionomers used in PEMWEs rely on perfluoroalkyl and polyfluoroalkyl substances, which complicate the manufacturing processes of the catalyst layers and cause a potential concern to the environment. Shifting to ionomer-free electrodes alleviates these challenges and simplifies scale-up processes; however, the application of ionomer-free electrodes remains at an early stage of research, and this perspective provides a guidance on the future direction based on previous research endeavors conducted in the field.","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 8","pages":"4932–4940 4932–4940"},"PeriodicalIF":5.4,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Fe/Ce Codoped Ni2P Catalyst to Enhance Alkaline Oxygen Evolution Reaction Fe/Ce共掺Ni2P催化剂促进碱性析氧反应

IF 5.4 3区材料科学

ACS Applied Energy Materials Pub Date : 2025-04-07 DOI: 10.1021/acsaem.5c0051210.1021/acsaem.5c00512

Luo Zhao, Li Wang, Ruijie Shi, Hao Xu, Zixuan Zeng, Xiaomin Lang, Yi Huang, Yuping Liu*, Xiaoqin Liao* and Ming Nie*,

{"title":"Fe/Ce Codoped Ni2P Catalyst to Enhance Alkaline Oxygen Evolution Reaction","authors":"Luo Zhao, Li Wang, Ruijie Shi, Hao Xu, Zixuan Zeng, Xiaomin Lang, Yi Huang, Yuping Liu*, Xiaoqin Liao* and Ming Nie*, ","doi":"10.1021/acsaem.5c0051210.1021/acsaem.5c00512","DOIUrl":"https://doi.org/10.1021/acsaem.5c00512https://doi.org/10.1021/acsaem.5c00512","url":null,"abstract":"Creating effective oxygen evolution reaction (OER) catalysts is crucial for advancing water electrolysis and hydrogen generation, thereby mitigating the depletion of conventional fossil fuels. This study prepared a Fe/Ce–Ni2P electrocatalyst with a coral-like structure by hydrothermal and low-temperature phosphating methods. The catalyst demonstrated exceptional performance, achieving current densities of 50 and 200 mA cm–2 at overpotentials of 250 and 310 mV, respectively─significantly outperforming pure Ni2P by 80 and 160 mV. Specifically, Fe doping significantly enhances conductivity and oxygen evolution activity, while Ce doping improves stability. The Fe/Ce–Ni2P catalyst exhibited outstanding stability over 100 h, a testament to the synergistic effects of Fe and Ce doping. This work introduces a simple and scalable synthesis strategy, offering a promising approach to developing robust dual-heteroatom-doped catalysts for OER applications.","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 8","pages":"5474–5481 5474–5481"},"PeriodicalIF":5.4,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Factorial Design and Optimization of Trimetallic CoNiFe-LDH/Graphene Composites for Enhanced Oxygen Evolution Reaction 三金属针叶- ldh /石墨烯复合材料增强析氧反应的因子设计与优化

IF 5.4 3区材料科学

ACS Applied Energy Materials Pub Date : 2025-04-06 DOI: 10.1021/acsaem.5c0048310.1021/acsaem.5c00483

Daniele Alves*, Gillian Collins, Marilia B. Dalla Benetta, Eithne Dempsey, Jae-Jin Shim, Raj Karthik and Carmel B. Breslin,

{"title":"Factorial Design and Optimization of Trimetallic CoNiFe-LDH/Graphene Composites for Enhanced Oxygen Evolution Reaction","authors":"Daniele Alves*, Gillian Collins, Marilia B. Dalla Benetta, Eithne Dempsey, Jae-Jin Shim, Raj Karthik and Carmel B. Breslin, ","doi":"10.1021/acsaem.5c0048310.1021/acsaem.5c00483","DOIUrl":"https://doi.org/10.1021/acsaem.5c00483https://doi.org/10.1021/acsaem.5c00483","url":null,"abstract":"Layered double hydroxides (LDH) have exhibited promising applications as electrocatalysts in oxygen evolution reactions (OER). In this work, trimetallic LDHs (CoNiFe-LDH) were designed and grown on graphene (G) through a one-step hydrothermal approach to obtain a structure that promotes efficient charge transfer. A 2-level full-factorial design was utilized to evaluate the effects of varying the concentrations of Co (1.5, 3, and 4.5 mmol) and graphene (10, 30, and 50 mg) on the OER activity. The potential needed to deliver 10 mA cm–2 was chosen as the response parameter. The independent and dependent parameters were fitted to a linear model equation through ANOVA analysis. The computed p-values were below 0.05 signifying the statistical significance of the concentrations of cobalt and graphene and their interaction, suggesting a correlation with the OER activity. The OER experiments were conducted in triplicate using the Co[3]Ni[3]Fe[3]-LDH/G[30] (central point) to estimate variability (0.58%). Comparative analysis showed that Co[1.5]Ni[3]Fe[3]-LDH/G[10] achieved the lowest onset potential (1.54 V), potential at 10 mA cm–2 (1.58 V), and Tafel slope (58.4 mV dec–1), indicating that a low concentration of cobalt and graphene make an efficient electrocatalyst for OER. Furthermore, the optimized composite demonstrated favorable electronic properties, with a charge transfer resistance (RCT) of 188.1 Ω, and exhibited good stability, maintaining its catalytic activity with no significant loss over a 24-h period.","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 8","pages":"5455–5467 5455–5467"},"PeriodicalIF":5.4,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsaem.5c00483","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Low-Cost and Multifunctional Copolymer Binder for Stabilizing High-Capacity Si/C Composite Anodes in Practical Lithium–Ion Batteries 稳定锂离子电池高容量Si/C复合阳极的低成本多功能共聚物粘结剂

IF 5.4 3区材料科学

ACS Applied Energy Materials Pub Date : 2025-04-05 DOI: 10.1021/acsaem.5c0042810.1021/acsaem.5c00428

Benben Peng, Dan Liu*, Miao Ji, Yongjian Liu, Xingshu Liao, Jiajun Chen, Lingyun Qiu and Deyu Qu*,

{"title":"Low-Cost and Multifunctional Copolymer Binder for Stabilizing High-Capacity Si/C Composite Anodes in Practical Lithium–Ion Batteries","authors":"Benben Peng, Dan Liu*, Miao Ji, Yongjian Liu, Xingshu Liao, Jiajun Chen, Lingyun Qiu and Deyu Qu*, ","doi":"10.1021/acsaem.5c0042810.1021/acsaem.5c00428","DOIUrl":"https://doi.org/10.1021/acsaem.5c00428https://doi.org/10.1021/acsaem.5c00428","url":null,"abstract":"Although high-capacity silicon/carbon (Si/C) composites are widely recognized as the most promising alternative to commercial graphite anodes for next-generation high-energy lithium–ion batteries (LIBs), their practical implementation faces significant challenges due to structural and interfacial instability caused by the substantial volume expansion of Si during charge–discharge cycles. Developing cost-effective binders with superior bonding strength and excellent interfacial compatibility for multicomponent Si/C electrodes is crucial to overcoming these limitations. Herein, we have successfully synthesized a linear copolymer binder (HAMN) incorporating four distinct functional units through a facile one-pot aqueous radical polymerization method. This innovative binder demonstrates multiple advantages, including cost efficiency, exceptional water solubility, superior slurry rheology, remarkable mechanical flexibility, and strong interfacial affinity for Si/C composites. The HAMN-based Si/C electrode exhibits outstanding electrochemical performance, maintaining 91.24% capacity retention after 600 cycles at 0.5C in a half-cell configuration. More importantly, in practical 18,650 cylindrical full-cell tests, the battery demonstrates impressive cycling stability with capacity retention rates of 86.2% after 400 cycles at 0.5C and 78.84% after 700 cycles at 1C. These compelling results underscore the tremendous potential of the HAMN binder in enabling the practical application of high-energy Si/C composite anodes for advanced LIBs.","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 8","pages":"5403–5413 5403–5413"},"PeriodicalIF":5.4,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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