EcoMat最新文献 - Book学术

Multiscale Materials Imaging and Spectroscopy for Battery Materials 电池材料的多尺度材料成像与光谱学

IF 10.7

EcoMat Pub Date : 2025-05-06 DOI: 10.1002/eom2.70016

Youngwoo Choi, Gumin Kang, Seonghyun Kim, Yoonhan Cho, Jaewhan Oh, Dongho Kim, Jacob Choe, Jong Min Yuk, Pyuck-Pa Choi, Yongsoo Yang, Sung-Yoon Chung, Chi Won Ahn, Jongwoo Lim, Seungbum Hong

{"title":"Multiscale Materials Imaging and Spectroscopy for Battery Materials","authors":"Youngwoo Choi, Gumin Kang, Seonghyun Kim, Yoonhan Cho, Jaewhan Oh, Dongho Kim, Jacob Choe, Jong Min Yuk, Pyuck-Pa Choi, Yongsoo Yang, Sung-Yoon Chung, Chi Won Ahn, Jongwoo Lim, Seungbum Hong","doi":"10.1002/eom2.70016","DOIUrl":"https://doi.org/10.1002/eom2.70016","url":null,"abstract":"Multiscale imaging and spectroscopy play a pivotal role in understanding the structural, chemical, and dynamic behavior of battery materials, providing critical insights that drive advancements in performance, longevity, and safety. This review provides a comprehensive analysis of various imaging techniques, from macroscopic tools like x-ray tomography to nanoscale methods such as atomic force microscopy and transmission electron microscopy. By categorizing these techniques based on spatial resolution, the review highlights their applications in resolving key issues like electrode degradation, dendrite formation, and phase transitions during battery operation. Moreover, the integration of machine learning accelerates data processing, enabling multiscale correlations and predictive modeling. The review underscores the necessity of multiscale approaches to optimize battery performance, safety, and lifespan, showcasing how emerging methodologies contribute to next-generation energy storage technologies.\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>\u0000 ","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 5","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70016","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143914508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synergistic Effects in Copolymerized Carbon Nitride/MoO3 Heterojunction Composites for Efficient Visible-Light-Driven Photocatalysis 共聚氮化碳/MoO3异质结复合材料在高效可见光驱动光催化中的协同效应

IF 10.7

EcoMat Pub Date : 2025-05-05 DOI: 10.1002/eom2.70015

Junsheng Ye, Abeer M. Beagan, Sheng-Rong Guo, Asif Hayat, Yasin Orooji

{"title":"Synergistic Effects in Copolymerized Carbon Nitride/MoO3 Heterojunction Composites for Efficient Visible-Light-Driven Photocatalysis","authors":"Junsheng Ye, Abeer M. Beagan, Sheng-Rong Guo, Asif Hayat, Yasin Orooji","doi":"10.1002/eom2.70015","DOIUrl":"https://doi.org/10.1002/eom2.70015","url":null,"abstract":"The engineering of very effective and sustainable photocatalysts is needed to confront both environmental and energy problems. This work included the synthesis and evaluation of a range of copolymerized graphitic carbon nitride (CN)-based materials (CN-PAx) and their heterojunction composite materials with molybdenum trioxide (MoO3) for photocatalytic hydrogen (H2) generation and methylene blue (MB) degradation under visible-light illumination. Pristine CN and MoO3 had lower photocatalytic performance, but copolymerized CN materials (CN-PA200, CN-PA400, CN-PA600) and their heterojunction composite materials (CN/MoO3, CN-PA400/MoO3(3%), CN-PA400/MoO3(6%), and CN-PA400/MoO3(9%)) demonstrated substantial enhancements. Of them, CN-PA400/MoO3(6%) had the greatest H2 production rate of 127.22 μmol/h, almost 6.8 times higher than pure CN. It attained an outstanding MB photodegradation performance of 99.3% in 1 h, demonstrating exceptional stability by maintaining over 95% effectiveness throughout four successive cycles. The exceptional efficiency of CN-PA400/MoO3(6%) is ascribed to its improved heterojunction design, which improves the separation of charge particles, minimizes recombination, and promotes visible-light absorption. The band alignment among CN-PA400 and MoO3 facilitates effective electron transport, whereas the presence of many active sites enhances the photocatalytic processes. These results present significant insights into the development of effective heterojunction photocatalysts and highlight the promise of CN-PA400/MoO3(6%) for renewable energy generation and environmental cleanup purposes.","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 5","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70015","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 Large-Area Graphene-Based Composite Paper for Efficient Gold Extraction From E-Waste and Its Reuse 电子垃圾高效提金及再利用大面积石墨烯基复合纸

IF 10.7

EcoMat Pub Date : 2025-04-24 DOI: 10.1002/eom2.70014

Mingrui Zhang, Qing Zhang, Fei Li, Chengjin Wang, Yang Su, Hui-Ming Cheng

{"title":"A Large-Area Graphene-Based Composite Paper for Efficient Gold Extraction From E-Waste and Its Reuse","authors":"Mingrui Zhang, Qing Zhang, Fei Li, Chengjin Wang, Yang Su, Hui-Ming Cheng","doi":"10.1002/eom2.70014","DOIUrl":"https://doi.org/10.1002/eom2.70014","url":null,"abstract":"The increasing accumulation of e-waste containing precious metals calls for the development of efficient recycling strategies for gold recovery from e-waste. In this study, we present scalable fabrication (up to 3600 cm2) of rGO/cellulose composite papers with a high rGO areal density of 7.5 g/m2 and their use as efficient and large-area adsorbents for gold extraction. The resulting rGO@cellulose composite exhibits excellent gold extraction capacity, achieving 20 and 36.3 g/m2 at 25°C and 60°C, respectively, which translates to high gravimetric capacities of 2662 mg/g and 4833 mg/g. When used for gold extraction from e-waste containing 13 types of metals, the rGO@cellulose maintains a precise selectivity for gold and achieves high extraction efficiency of 99.6%, providing a promising avenue for the sustainable recovery of gold from e-waste. Furthermore, the gold recycled by the rGO@cellulose can be reused for photothermal steam generation and catalytic degradation of environmental contaminants, demonstrating its potential for diverse environmental applications beyond gold extraction. This work provides a sustainable approach to e-waste recycling, offering a pathway to address environmental challenges while promoting the circular use of resources.","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 5","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70014","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Current-Dependent Coupling Behaviors Inspired Wide-Current Cyclable Zn Metal Anodese 电流依赖耦合行为激发的宽电流可循环锌金属阳极

IF 10.7

EcoMat Pub Date : 2025-04-21 DOI: 10.1002/eom2.70013

Yanpeng Guo, Lutong Shan, Yongqiang Yang, Junhua Zhou, Zijian Zheng

{"title":"Current-Dependent Coupling Behaviors Inspired Wide-Current Cyclable Zn Metal Anodese","authors":"Yanpeng Guo, Lutong Shan, Yongqiang Yang, Junhua Zhou, Zijian Zheng","doi":"10.1002/eom2.70013","DOIUrl":"https://doi.org/10.1002/eom2.70013","url":null,"abstract":"Aqueous zinc metal batteries (AZMBs) provide a safe and cost-effective solution to meet the future demand for large-scale energy storage applications. Stable cycling of the Zn metal anode (ZMA) within a wide current range from 0.2 to 10 mA cm−2 is considered one of the most critical requirements to enable AZMBs. However, current studies show that ZMAs may cycle at either high- or low-current densities, but it is difficult to simultaneously achieve stable cycling at this wide current range. Herein, we study the current-dependent coupling interactions among plating, stripping, and corrosion of ZMAs. We reveal that low-current plating/stripping of Zn leads to unfavorable morphological and crystallographic evolution, which results in serious surface corrosion and rapid failure. In contrast, high-current plating/stripping of Zn can enrich its highly stable (002) facets and form localized high-concentration electrolyte layers with solvated aggregates, which consequently suppresses hydrogen evolution reaction, dendrite formation, and surface corrosion. By understanding these current-dependent coupling behaviors, we develop a high-current-engineered Zn anode that enables long-term cycling across a wide current range, including a record-breaking cycling of 4500 h at 0.2 mA cm−2. This work offers new fundamental insights and a feasible engineering strategy to significantly boost the stability of ZMAs.","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 5","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70013","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143856921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fabrication and Applications of Textile-Based Structurally Colored Materials 纺织结构有色材料的制备与应用

IF 10.7

EcoMat Pub Date : 2025-04-09 DOI: 10.1002/eom2.70012

Jiali Yu, Chichao Xia, Wenyi Wang, Xi Yu, Chi-Wai Kan

{"title":"Fabrication and Applications of Textile-Based Structurally Colored Materials","authors":"Jiali Yu, Chichao Xia, Wenyi Wang, Xi Yu, Chi-Wai Kan","doi":"10.1002/eom2.70012","DOIUrl":"https://doi.org/10.1002/eom2.70012","url":null,"abstract":"Textile-based structurally colored materials have emerged as a captivating field of research and innovation, presenting unparalleled prospects to revolutionize the realm of textiles and their diverse applications. This review paper provides a comprehensive overview of the progress made in the manufacturing methods and applications of structurally colored textiles. Based on the principles of Bragg diffraction and its extended theorems, the mechanisms behind the generation of structural colors in textiles are explored, revealing the underlying principles that enable coloration. The versatile and effective strategies adopted for the fabrication of textile-based structurally colored materials, such as gravity sedimentation, spray coating, vertical deposition, screen printing, shear-induced assembly, additive manufacturing or three-dimensional (3D) printing, dip coating, electrophoretic deposition, and electrospinning methods are discussed. The applications of textile-based structurally colored materials are discussed, with a specific focus on anti-counterfeiting measures, the biomedical field, and radiative cooling applications. This review aims to drive the progress of fabricating and functionalizing textile-based structurally colored materials, with the ultimate goal of expanding their applications in diverse fields.","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 4","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70012","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143809721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Smart Hydrogels for Sustainable Agriculture 可持续农业的智能水凝胶

IF 10.7

EcoMat Pub Date : 2025-04-03 DOI: 10.1002/eom2.70011

Jungjoon Park, Weixin Guan, Guihua Yu

{"title":"Smart Hydrogels for Sustainable Agriculture","authors":"Jungjoon Park, Weixin Guan, Guihua Yu","doi":"10.1002/eom2.70011","DOIUrl":"https://doi.org/10.1002/eom2.70011","url":null,"abstract":"The growing global population, coupled with increasing food demand and water scarcity, has intensified the need for advancements in modern agriculture. As an emerging class of materials featured by intensively tunable properties, smart hydrogels offer innovative solutions to challenges associated with conventional agricultural practices, such as excessive agrochemical and water use and inefficiencies that contribute to environmental degradation. Additionally, hydrogel-based sensors can monitor environmental conditions and crop health, enabling precise adjustments to optimize growth and resource use. By serving as platforms for the slow and controlled delivery of agrochemicals and smart sensors, hydrogel systems can enhance resource efficiency, reduce labor demands, and improve crop yields in an environmentally sustainable manner. This Perspective article summarizes recent advancements in hydrogel-based materials, highlights existing challenges, and proposes potential research directions, with a focus on developing advanced hydrogel systems to transform agricultural practices.\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>\u0000 ","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 4","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70011","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Light Irradiation of N-Doped Graphene Acid: Metal-Free Strategy Toward Antibacterial and Antiviral Coatings With Dual Modes of Action n掺杂石墨烯酸的光照射：具有双重作用模式的抗菌和抗病毒涂层的无金属策略

IF 10.7

EcoMat Pub Date : 2025-03-26 DOI: 10.1002/eom2.70009

Giacomo Reina, David Panáček, Krista Rathammer, Stefanie Altenried, Philipp Meier, Paula Navascués, Zdeněk Baďura, Paula Bürgisser, Vera Kissling, Qun Ren, Radek Zbořil, Peter Wick

{"title":"Light Irradiation of N-Doped Graphene Acid: Metal-Free Strategy Toward Antibacterial and Antiviral Coatings With Dual Modes of Action","authors":"Giacomo Reina, David Panáček, Krista Rathammer, Stefanie Altenried, Philipp Meier, Paula Navascués, Zdeněk Baďura, Paula Bürgisser, Vera Kissling, Qun Ren, Radek Zbořil, Peter Wick","doi":"10.1002/eom2.70009","DOIUrl":"https://doi.org/10.1002/eom2.70009","url":null,"abstract":"The increasing emergence of antimicrobial resistance and the development of new infective viral strains represent a constantly growing threat. Metal-based nanomaterials have emerged as promising tools in the fight against bacterial and viral infections; however, the release of metal nanoparticles/ions in clinical applications may cause undesired side effects (allergies, systemic toxicity), reducing their practical use in antimicrobial treatment. Moreover, the metal-based nanoparticles possess predominantly antibacterial effects, while their antiviral efficiency remains controversial. Thus, the development of metal-free strategies enabling combined antibacterial/antiviral properties is a significant challenge. Here, we report a strategy based on light irradiation of nitrogen-doped graphene acid (NGA) possessing dual photothermal and photodynamic modes of action. The antimicrobial activity is activated through a clinically approved near-infrared (NIR) light source, and both viral and bacterial spreading can be hampered on the coating irradiation on a scale of minutes (5 to 10 min). The developed metal-free strategy reduced 90.9% and 99.99% for S. aureus and P. aeruginosa, respectively, as well as 99.97% for murine hepatitis virus. Importantly, this research represents a significant advancement in the development of safe, metal-free, and effective antimicrobial treatments. NGA coatings are safe for skin, showing no sensitization or irritation, and offer significant potential for advanced antimicrobial treatments.","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 4","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143707543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Platinum Group Metal-Indium Carbon-Interstitial Compounds for Hydrogen Production 产氢用铂族金属-铟碳间隙化合物

IF 10.7

EcoMat Pub Date : 2025-03-21 DOI: 10.1002/eom2.70008

Xiaopeng Liu, Ankang Jia, Kezhu Jiang, Ju Huang, Wei Deng, Shuxing Bai

{"title":"Platinum Group Metal-Indium Carbon-Interstitial Compounds for Hydrogen Production","authors":"Xiaopeng Liu, Ankang Jia, Kezhu Jiang, Ju Huang, Wei Deng, Shuxing Bai","doi":"10.1002/eom2.70008","DOIUrl":"https://doi.org/10.1002/eom2.70008","url":null,"abstract":"Carbon-interstitial compounds of precious metal alloys (Ci-PMA) have attracted increased attention as effective catalytic materials, but their precise and controllable synthesis remains significant challenges. Herein, we have established a universal approach for the straightforward synthesis of supported Ci-platinum group metal-indium alloys (M3InCx, M = Pt, Pd, Ni, x = 0.5 or 1). The control experiment results indicate that the C atoms in Pt3InC0.5 come from the solvent. Furthermore, 0.2 wt.% Pt3InC0.5/SiO2 exhibits excellent catalytic performance for aqueous phase reforming (APR) of methanol (CH3OH) to produce hydrogen, with productivity and turnover frequency of 310.0 −1mol·kgcat·h−1 and 30 126 h−1 at 200°C, which are 1.7 times greater than those of Pt3In/SiO2. The infrared results of CH3OH adsorption reveal that the substantially better performance for APR of CH3OH of Pt3InC0.5/SiO2 than Pt3In/SiO2 is due to its significantly enhanced CH bond dissociation ability. This study not only provides a straightforward and universal approach for the controlled synthesis of Ci-PMA but also stimulates fundamental research into Ci-PMA for catalysis and other applications.","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 4","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70008","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143689494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring Gas/Solid Interface Reactions of Solid Oxide Cell Electrodes via Model Thin-Film Systems 利用模型薄膜系统探索固体氧化物电池电极的气固界面反应

IF 10.7

EcoMat Pub Date : 2025-03-20 DOI: 10.1002/eom2.70007

Jinwook Kim, Hyunseung Kim, Seongwoo Nam, Yoonseok Choi, WooChul Jung

{"title":"Exploring Gas/Solid Interface Reactions of Solid Oxide Cell Electrodes via Model Thin-Film Systems","authors":"Jinwook Kim, Hyunseung Kim, Seongwoo Nam, Yoonseok Choi, WooChul Jung","doi":"10.1002/eom2.70007","DOIUrl":"https://doi.org/10.1002/eom2.70007","url":null,"abstract":"Solid oxide cells (SOCs) are promising energy conversion devices capable of efficiently converting electrical energy to chemical energy and vice versa. Enhancing efficiency and durability in SOCs necessitates a thorough understanding of the electrode's gas/solid interface, which is often hindered by the intricate structures of actual cells. Consequently, researchers have turned to thin-film-based model systems with well-defined structures to advance this understanding. This review delves into the fundamental studies conducted using these systems to investigate phenomena at the electrode interfaces of SOCs. It systematically addresses how model electrodes are fabricated and assessed, along with the various phenomena that have been studied through these systems. Moreover, this review explores research areas within SOCs that require more in-depth study, which can be facilitated by the use of thin-film-based model systems. In this review, we aim to underscore how simplified models can yield crucial insights into the interface dynamics of SOC electrodes, potentially steering the development of more efficient and stable SOCs.\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>\u0000 ","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 4","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143689215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Integrated Contact and Chemical Prelithiation Method to Boost Coulombic Efficiency of Si-Based Anodes for Li-Ion Batteries 集成接触和化学预锂化方法提高锂离子电池硅基阳极的库仑效率

IF 10.7

EcoMat Pub Date : 2025-03-18 DOI: 10.1002/eom2.70010

Yu-Kang Chung, Asif Latief Bhat, Yu-Sheng Su

{"title":"Integrated Contact and Chemical Prelithiation Method to Boost Coulombic Efficiency of Si-Based Anodes for Li-Ion Batteries","authors":"Yu-Kang Chung, Asif Latief Bhat, Yu-Sheng Su","doi":"10.1002/eom2.70010","DOIUrl":"https://doi.org/10.1002/eom2.70010","url":null,"abstract":"Silicon-based anodes are considered a promising alternative for next-generation lithium-ion batteries (LIBs) due to their high theoretical capacity, which is significantly greater than that of traditional graphite anodes. However, the inherent challenge of the associated low initial Coulombic efficiency (ICE) due to irreversible lithium consumption limits their practical applications. Prelithiation techniques have emerged as a solution to compensate for this initial lithium loss, but current methods often face challenges such as high costs, incomplete lithiation, and complex setups. In this study, we present a novel modified direct contact prelithiation method utilizing a Li-ion-free biphenyl solution. This innovative approach integrates the advantages of both direct contact and wet chemical prelithiation, achieving fast, uniform, and cost-effective prelithiation of Si-based anodes. Electrochemical characterizations demonstrate that the method significantly enhances ICE, reaching from 66.7% to 115.4% after 10 min of prelithiation for SiOx anodes and from 91.4% to 100.5% after just 90 s of prelithiation for Si anodes, while also stabilizing open-circuit voltage. Furthermore, microstructural analyses reveal the formation of a distinct solid electrolyte interphase layer after prelithiation. XPS depth profiling confirms the progressive lithiation of Si-based anodes, highlighting the formation of lithium oxide and lithium silicate compounds at varying depths with extended prelithiation times. These findings demonstrate the effectiveness of the proposed integrated prelithiation method in enhancing the electrochemical performance of Si-based anodes, paving the way for the development of high-energy-density LIBs.","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 4","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70010","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0