Energy & Environmental Materials最新文献_第2页

Zincophilic, Green, Non-Toxic Additives Modulate Lean-Water Inner Helmholtz Layer for Enhanced Stability of Zinc Anodes 亲锌、绿色、无毒添加剂调节贫水内亥姆霍兹层以增强锌阳极的稳定性

IF 14.1 2区材料科学

Energy & Environmental Materials Pub Date : 2026-03-03 Epub Date: 2025-10-29 DOI: 10.1002/eem2.70133

Jing Li, Li Li, Tao Yang, Chenkai Lu, Zhenyu Jiang, Bailin Xiang, Ziqi Cai, Jiong Zheng, Chao Su, Funian Mo, Xidong Lin

{"title":"Zincophilic, Green, Non-Toxic Additives Modulate Lean-Water Inner Helmholtz Layer for Enhanced Stability of Zinc Anodes","authors":"Jing Li, Li Li, Tao Yang, Chenkai Lu, Zhenyu Jiang, Bailin Xiang, Ziqi Cai, Jiong Zheng, Chao Su, Funian Mo, Xidong Lin","doi":"10.1002/eem2.70133","DOIUrl":"https://doi.org/10.1002/eem2.70133","url":null,"abstract":"The structural modulation of the inner Helmholtz layer is crucial to enhance the cycling stability of Zn anode interface. A water-rich inner Helmholtz layer normally induces uncontrollable zinc dendrites, hydrogen evolution and corrosion, severely compromising the cycle life of the zinc anode. Therefore, in this work, green and non-toxic dipropylene glycol dimethyl ether (DMM) is used as an additive to remodel the inner Helmholtz layer. Both experimental and computational results show that DMM is zincophilic and can preferential adsorb on the zinc surface for the occupation of the inner Helmholtz layer. Meanwhile, DMM contains two hydrophobic methyl groups, which can repel water molecules remaining after solvent removal, and build a lean-water inner Helmholtz layer to avoid continuous contact between water molecules and zinc anode. The quartz crystal microbalance with dissipation test intuitively and accurately reflected the adsorption behavior of DMM on the surface of zinc anode, and realized the leap from qualitative analysis to quantitative analysis. The Zn//Zn symmetric cells with DMM electrolytes have a stable cycle life of over 1100 cycles at 2 mA cm−2 and 0.5 mAh cm−2. In addition, Zn//PANI cell with DMM electrolyte can maintain 90% capacity retention over 1000 cycles at 1 A g−1.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 2","pages":""},"PeriodicalIF":14.1,"publicationDate":"2026-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70133","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147570319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Challenges and Advancements in High-Nickel Layered Oxides Cathode Material for Lithium-Ion Batteries 锂离子电池高镍层状氧化物正极材料的挑战与进展

IF 14.1 2区材料科学

Energy & Environmental Materials Pub Date : 2026-03-03 Epub Date: 2025-09-12 DOI: 10.1002/eem2.70152

Yunshan Zheng, Junfeng Li, Yijing Liu, Lanlan Feng, Wen Liu, LiLi Lin, Yiming Wang, Haoyang Peng, Jian Lu, Dong Zhou, Baohua Li

{"title":"Challenges and Advancements in High-Nickel Layered Oxides Cathode Material for Lithium-Ion Batteries","authors":"Yunshan Zheng, Junfeng Li, Yijing Liu, Lanlan Feng, Wen Liu, LiLi Lin, Yiming Wang, Haoyang Peng, Jian Lu, Dong Zhou, Baohua Li","doi":"10.1002/eem2.70152","DOIUrl":"https://doi.org/10.1002/eem2.70152","url":null,"abstract":"LiNi0.8Co0.1Mn0.1O2 (NCM811), a high-nickel layered oxide, has emerged as a frontrunner for next-generation lithium-ion batteries (LIBs) due to its high energy density, excellent rate performance, and cost-effectiveness. However, NCM811 cathodes face multifaceted challenges, including cation mixing, microcracking, and residual lithium compounds, necessitating a comprehensive understanding for addressing these critical issues. In this review, we provide an in-depth analysis of recent advancements, presenting actionable insights into effective strategies to address the key issues in the NCM811 cathode and proposing pathways for optimizing NCM811 cathodes in LIB applications. Additionally, the forward-looking perspectives are explored in this review, highlighting the role of advanced material characterization techniques, theoretical modeling, and computational simulations in overcoming the inherent limitations of NCM811 cathodes. By synthesizing current knowledge and technological advancements, this review aims to serve as a foundational resource for researchers and industry professionals striving to enhance the performance and accelerate the commercialization of NCM811 cathode materials, contributing to the future of energy storage solutions.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 2","pages":""},"PeriodicalIF":14.1,"publicationDate":"2026-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70152","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147565555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Organic Electrolyte Composed of Strongly and Weakly Coordinating Molecules for Sodium-Ion Battery. A Molecular Dynamics Simulation Study 钠离子电池用强、弱配位有机电解质。分子动力学模拟研究

IF 14.1 2区材料科学

Energy & Environmental Materials Pub Date : 2026-03-03 Epub Date: 2025-09-21 DOI: 10.1002/eem2.70147

Hongjin Li, Junyu Huang, Yuechao Wu, Tao Wang, Siyuan Wu, Shu Li, Tianying Yan

{"title":"Organic Electrolyte Composed of Strongly and Weakly Coordinating Molecules for Sodium-Ion Battery. A Molecular Dynamics Simulation Study","authors":"Hongjin Li, Junyu Huang, Yuechao Wu, Tao Wang, Siyuan Wu, Shu Li, Tianying Yan","doi":"10.1002/eem2.70147","DOIUrl":"https://doi.org/10.1002/eem2.70147","url":null,"abstract":"Molecular dynamics simulations were conducted at temperatures of 298.15, 273.15, 253.15, and 233.15 K on three organic electrolytes, composed of 1 m NaPF6 dissolved in strongly coordinating diglyme (DG), a mixture of DG and weakly coordinating Tetrahydrofuran (THF) with a 2:8 volume ratio, and a mixture of DG, THF, and weakly coordinating 1,3-dioxolane (DOL) with a 2:4:4 volume ratio, respectively, hereafter denoted as ND, NDT, and NDTD electrolytes for sodium-ion batteries. The studies indicate strong Na+–DG coordination that leads to a vehicular mechanism, in the sense that Na+ persists in migrating together with strongly coordinating DG in the first coordination shell at all the temperature ranges. Such a vehicular mechanism hinders Na+ migration in the ND electrolyte. In contrast, the introduction of weakly coordinating molecules, such as THF in the NDT electrolyte and THF/DOL in the NDTD electrolyte, considerably perturbs Na+ solvation with various coordinating configurations that include Na+–THF and/or Na+–DOL as well as Na+–<math>\u0000 <mrow>\u0000 <msubsup>\u0000 <mi>PF</mi>\u0000 <mn>6</mn>\u0000 <mo>−</mo>\u0000 </msubsup>\u0000 </mrow></math> contact-ion pairs. Such diversity of the coordinating configurations significantly improves Na+ migration, especially in the NDTD electrolyte, which has the highest ionic conductivity as well as the fractional ionic conductivity of Na+ of 3.68 ± 0.36 and 1.32 ± 0.11 mS·cm−1, respectively, even at a low temperature of 233.15 K.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 2","pages":""},"PeriodicalIF":14.1,"publicationDate":"2026-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70147","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147567656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Reviews of High-Longevity Aqueous Zinc Metal Batteries Achieved by Programmable Interface Architectures 基于可编程接口架构的高寿命锌水电池研究进展

IF 14.1 2区材料科学

Energy & Environmental Materials Pub Date : 2026-03-03 Epub Date: 2025-11-10 DOI: 10.1002/eem2.70176

Bixian Chen, Xiaomin Cheng, Haifeng Yang, Teng Li, Jing Dong, Yidong Miao, Yongzheng Zhang, Qingbo Xiao, Qinghua Guan, Jing Zhang, Yunjian Liu, Hongzhen Lin, Jian Wang

{"title":"Reviews of High-Longevity Aqueous Zinc Metal Batteries Achieved by Programmable Interface Architectures","authors":"Bixian Chen, Xiaomin Cheng, Haifeng Yang, Teng Li, Jing Dong, Yidong Miao, Yongzheng Zhang, Qingbo Xiao, Qinghua Guan, Jing Zhang, Yunjian Liu, Hongzhen Lin, Jian Wang","doi":"10.1002/eem2.70176","DOIUrl":"https://doi.org/10.1002/eem2.70176","url":null,"abstract":"Aqueous zinc metal batteries (AZMBs) are considered ideal ones for next-generation energy storage devices due to their high theoretical specific capacity and intrinsic safety. However, uncontrollable zinc dendrite growth, hydrogen evolution reaction (HER), and interface corrosion prohibit the commercialization of AZMBs. The deposition behaviors of Zn2+/Zn0 on metallic Zn surface can be effectively regulated by constructing artificial interphase layers (AILs) to control desolvation and ion/atom flux. In this work, the intrinsic mechanism and interface failure of Zn2+ electrodeposition behaviors are initially revealed, providing a theoretical basis for interface issues. To address these problems, the design strategies from carbon materials, zincophilic alloys, and inorganic/organic compound layers provide an in-depth analysis of the relationship between material structure and performance, establishing a theoretical foundation for the development of programmable interface architecture. In light of practical application requirements, the future direction is envisioned and pioneered, aiming to promote the practical application process of AZMBs.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 2","pages":""},"PeriodicalIF":14.1,"publicationDate":"2026-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70176","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147564758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Phonon-Driven Insights Into Layer Sliding of High-Voltage Layered Cathode 声子驱动的高压层状阴极层滑动研究

IF 14.1 2区材料科学

Energy & Environmental Materials Pub Date : 2026-03-03 Epub Date: 2025-10-28 DOI: 10.1002/eem2.70171

Han Tang, Yingxin Huang, Valentina A. Bocharova, Xiaohui Rong, Ang Gao, Lin Gu, Yongsheng Hu

{"title":"Phonon-Driven Insights Into Layer Sliding of High-Voltage Layered Cathode","authors":"Han Tang, Yingxin Huang, Valentina A. Bocharova, Xiaohui Rong, Ang Gao, Lin Gu, Yongsheng Hu","doi":"10.1002/eem2.70171","DOIUrl":"https://doi.org/10.1002/eem2.70171","url":null,"abstract":"Understanding the structural instability of high-voltage layered cathodes remains a critical challenge in advancing sodium-ion batteries. In particular, the mechanism of slab gliding, a key contributor to phase transitions, has not been fully elucidated at the atomic level. Here, we propose a breathing-shear mode coupling model based on the phonon spectrum, which elucidates the slab gliding mechanism in layered cathode materials by using interlayer spacing as the order parameter. Employing a “single-layer to double-layer” comparative strategy in P2-Na0MnO2, we establish a direct link between specific phonon modes and atomic-scale dynamics. This mode corresponds to a C-glide vibration, which features cooperative atomic motion within the layers and relative sliding between adjacent layers. Due to its negative vibrational energy, this mode drives exponential atomic displacement and triggers structural transformation. Notably, van der Waals-corrected phonon analysis reveals that weak interlayer interactions enhance this dynamic instability. Finally, we propose a solution to control structural stability by adjusting the interlayer spacing on the basis of phonon spectrum analysis. This phonon mode-stability correlation framework offers new theoretical guidance for designing robust high-voltage layered cathodes.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 2","pages":""},"PeriodicalIF":14.1,"publicationDate":"2026-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70171","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147570317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

A New Hybrid Solid/Solvating Sulfur Conversion for Energy-Dense Lithium-Sulfur Batteries 一种新型固体/溶剂化混合硫转化高能量锂硫电池

IF 14.1 2区材料科学

Energy & Environmental Materials Pub Date : 2026-03-03 Epub Date: 2025-09-10 DOI: 10.1002/eem2.70139

Xiaoyu Jin, Xiaoqun Qi, Fengyi Yang, Han Zhou, Ruining Jiang, Dan Yang, Zhou Fang, Fei Zhou, Jie Ji, Zhenglu Zhu, Lixia Yuan, Yunhui Huang, Long Qie

{"title":"A New Hybrid Solid/Solvating Sulfur Conversion for Energy-Dense Lithium-Sulfur Batteries","authors":"Xiaoyu Jin, Xiaoqun Qi, Fengyi Yang, Han Zhou, Ruining Jiang, Dan Yang, Zhou Fang, Fei Zhou, Jie Ji, Zhenglu Zhu, Lixia Yuan, Yunhui Huang, Long Qie","doi":"10.1002/eem2.70139","DOIUrl":"https://doi.org/10.1002/eem2.70139","url":null,"abstract":"To boost the practical energy density of lithium-sulfur batteries, replacing conventional solvating electrolytes with sparingly solvating ones has shown promise by enabling solid-state sulfur conversion and reducing electrolyte consumption. However, this approach often compromises sulfur redox kinetics. This study reports a new sulfur conversion pathway distinct from both traditional solvated and sparingly solvated mechanisms. Specifically, sulfur is converted into a mixture of solid and solvated lithium polysulfides (LPSs). Such a hybrid solid/solvating conversion pathway is achieved using a newly formulated moderately solvating electrolyte, accomplishing both lean-electrolyte operation and fast conversion kinetics for lithium-sulfur batteries. Methoxyacetonitrile (MAN) is selected as the solvent to formulate the moderately solvating electrolyte due to its high relative permittivity (21) that contributes to a high Li+ conductivity (11.7 mS cm−1 for 1M lithium bis(trifluoromethane sulfonyl)imide in MAN) and low donor number (14.6 kcal mol−1) that reduces the solubility to LPSs to 1/6 of that in mainstream solvating electrolytes. The as-formulated MAN electrolyte enables sulfur cathodes to operate at a low electrolyte-to-sulfur ratio of 2 μL mg−1 and a low cathode porosity of 52%, displaying excellent prospects for boosting both gravimetric and volumetric energy density.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 2","pages":""},"PeriodicalIF":14.1,"publicationDate":"2026-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70139","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147564739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Green Synthesis of SnO2/Carbon Composite Anode for Low-Temperature Lithium-Ion Batteries 低温锂离子电池用SnO2/碳复合负极的绿色合成

IF 14.1 2区材料科学

Energy & Environmental Materials Pub Date : 2026-03-03 Epub Date: 2025-08-19 DOI: 10.1002/eem2.70121

Nurbolat Issatayev, Yerkem Kanatbekkyzy, Shynar Myrzakhan, Aliya Mukanova, Gulnur Kalimuldina, Arailym Nurpeissova, Zhumabay Bakenov

{"title":"Green Synthesis of SnO2/Carbon Composite Anode for Low-Temperature Lithium-Ion Batteries","authors":"Nurbolat Issatayev, Yerkem Kanatbekkyzy, Shynar Myrzakhan, Aliya Mukanova, Gulnur Kalimuldina, Arailym Nurpeissova, Zhumabay Bakenov","doi":"10.1002/eem2.70121","DOIUrl":"https://doi.org/10.1002/eem2.70121","url":null,"abstract":"Renewable energy is critical to building a sustainable society, but its true potential can only be unlocked by developing efficient, environmentally friendly energy storage systems. Advances in storage technologies, including cost-effective and green materials, are quickly becoming the cornerstone of sustainable energy solutions. The most effective battery technology available now is lithium-ion batteries (LIBs). However, the sustainability of battery material production and the degradation of LIB functionality at subzero temperatures pose significant challenges, highlighting the urgent need for alternative and sustainable low-temperature (LT) electrode materials. To overcome these issues, a green synthesis approach is proposed to fabricate SnO2 nanoparticles using an aqueous extract of banana peel, while the leftover peel serves as a carbon precursor to produce a SnO2/hard carbon composite. The optimized SnO2/hard carbon (7:3) composite was used as the anode and showcased a remarkable reversible capacity of 1110 mAh g−1 at room temperature and retained about 660 mAh g−1 at −20 °C and 100 mA g−1 after 100 cycles, with a capacity of 383 mAh g−1 even at −30 °C. Stable cycling performance was achieved by the synergistic interaction of SnO2 and hard carbon, which improved lithium-ion diffusion and mitigated volume expansion. This eco-friendly and scalable approach shows great promise for developing high-performance anodes for the next generation of LT LIBs.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 2","pages":""},"PeriodicalIF":14.1,"publicationDate":"2026-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70121","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147567196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Stabilizing Layered LiCoO2 Cathode in Aqueous Electrolytes through a Surface-to-Bulk Niobium Modification 通过表面-体铌改性稳定层状LiCoO2水溶液阴极

IF 14.1 2区材料科学

Energy & Environmental Materials Pub Date : 2026-03-03 Epub Date: 2025-07-22 DOI: 10.1002/eem2.70104

Yibo Dong, Peng Gong, Minghao Xu, Shengjun Zhai, Qingyuan Zhou, Yuanyuan Li, Jinping Liu

{"title":"Stabilizing Layered LiCoO2 Cathode in Aqueous Electrolytes through a Surface-to-Bulk Niobium Modification","authors":"Yibo Dong, Peng Gong, Minghao Xu, Shengjun Zhai, Qingyuan Zhou, Yuanyuan Li, Jinping Liu","doi":"10.1002/eem2.70104","DOIUrl":"https://doi.org/10.1002/eem2.70104","url":null,"abstract":"LiCoO2 is promising for aqueous lithium-ion batteries due to its simple production processes and high energy density. However, LiCoO2 exhibits poor cycle life in aqueous electrolytes, primarily attributed to H+ intercalation, interfacial reactions, and irreversible phase transformation, which substantially impedes its practical application. Herein, an integrated surface-to-bulk Nb modification strategy combining LiNbO3 surface coating and gradient Nb doping (N-LCO@LNO) is proposed to enhance the cycling stability of LiCoO2. The LiNbO3 surface coating serves as a physical barrier to suppress side reactions, while the gradient Nb doping stabilizes the bulk structure and inhibits spinel phase transition. Density functional theory calculations further reveal that this synergistic modification strategy can significantly suppress the structural degradation induced by electrophilic attack of H+. As a result, the N-LCO@LNO electrode delivers a high-rate capability of 117.1 mAh g−1 at 4 C and a long-life stability with 71.4% capacity retention after 100 cycles at 0.5 C, far outperforming the unmodified LiCoO2 electrode with only 11.1% capacity retention. This study presents a highly promising modification strategy that facilitates the effective utilization of LiCoO2 in aqueous electrolytes.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 2","pages":""},"PeriodicalIF":14.1,"publicationDate":"2026-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70104","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147568035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Gradient-Engineered Ultra-Thin Lithium Metal Anodes with a Li–Si–N Alloy-Based Lithiophilic Current Collector Interphase 梯度工程超薄锂金属阳极与基于Li-Si-N合金的亲锂电流收集器界面

IF 14.1 2区材料科学

Energy & Environmental Materials Pub Date : 2026-03-03 Epub Date: 2025-10-01 DOI: 10.1002/eem2.70154

Jihyeon Kang, Mihee Park, Jueun Kim, Jihan Park, Byungsuk Lee, Jinhong Lee, Pilgun Oh, Kyujung Kim, Jun-Woo Park, Minjoon Park

{"title":"Gradient-Engineered Ultra-Thin Lithium Metal Anodes with a Li–Si–N Alloy-Based Lithiophilic Current Collector Interphase","authors":"Jihyeon Kang, Mihee Park, Jueun Kim, Jihan Park, Byungsuk Lee, Jinhong Lee, Pilgun Oh, Kyujung Kim, Jun-Woo Park, Minjoon Park","doi":"10.1002/eem2.70154","DOIUrl":"https://doi.org/10.1002/eem2.70154","url":null,"abstract":"Li metal anodes, with high theoretical capacity (3860 mAh g−1) and low redox potential, are promising for high-capacity rechargeable batteries. Especially, ultra-thin Li metal anodes can improve energy density and minimize lithium excess. However, their poor processability leads to non-uniform Li layers and unstable plating/stripping behavior. In this study, we present a current collector interphase (CCI)-based strategy using a Cu foil coated with a lithiophilic Si3N4 layer, followed by molten Li dip-coating to form around 20 μm Li layer. Furthermore, the scalable dip-coating method, compatibility with large-area current collectors (up to 100 cm2), and stable cycling in pouch cells demonstrate the practical viability of the proposed SNLMA design for commercial lithium metal batteries. During the process, an in-situ Li–Si–N alloy gradient interphase forms at the interface, enhancing wettability and mechanical integrity. This unique gradient CCI provides synergistic lithiophilicity and structural stability, enabling high-performance Li metal batteries. The resulting LixSiy and LixNy phases reduce nucleation barriers and enable uniform Li deposition. As a result, the Si3N4–Li anode paired with a high-loading LCO cathode (22 mg cm−2) achieved 83% capacity retention after 100 cycles. This work offers a scalable and practical CCI design for next-generation Li metal batteries.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 2","pages":""},"PeriodicalIF":14.1,"publicationDate":"2026-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70154","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147562384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Dopant Engineering in Perovskite Cathodes for Efficient CO2 Electrolysis 钙钛矿阴极中高效CO2电解的掺杂剂工程

IF 14.1 2区材料科学

Energy & Environmental Materials Pub Date : 2025-09-19 DOI: 10.1002/eem2.70128

Mengqin Xiao, Cheng Li, Changwei Zou, Jiuxiao Sun, Zongbao Li, Lichao Jia

{"title":"Dopant Engineering in Perovskite Cathodes for Efficient CO2 Electrolysis","authors":"Mengqin Xiao, Cheng Li, Changwei Zou, Jiuxiao Sun, Zongbao Li, Lichao Jia","doi":"10.1002/eem2.70128","DOIUrl":"https://doi.org/10.1002/eem2.70128","url":null,"abstract":"Electrochemical carbon dioxide reduction reaction (CO2RR), powered by advanced technologies such as solid oxide electrolysis cells (SOEC), is a promising method to convert CO2 into valuable carbon-based products using renewable electricity. The high chemical stability of CO2 requires catalysts to exhibit both high activity and stable electrocatalytic performance. However, catalysts that deliver high performance in CO2RR are rare and still require further improvement. Here, we report a strategy that can efficiently enhance catalyst activity through Zn doping, which introduces active frustrated Lewis pairs (FLP) to improve the catalyst's ability to activate small molecules. A high current density of −1.85 A cm−2 at 800 °C under a bias voltage of 1.5 V was achieved using the Sr2Fe0.8Zn0.2MoO6-δ (SFZn0.2M) cathode with pure CO2 feeding gas, surpassing previously reported results for perovskite oxide cathodes. This SOEC device also demonstrates excellent stability, with negligible degradation over tests lasting up to 110 h.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"9 1","pages":""},"PeriodicalIF":14.1,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70128","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145719601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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