Advanced Energy Materials最新文献_第9页

Toward Deciphering the Internal Menace of Battery Safety: Soft Short Circuit Versus Hard Short Circuit? 破解电池安全的内在威胁：软短路vs硬短路？

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-07-03 DOI: 10.1002/aenm.202500275

Hanghang Yan, Jinrong Su, Zhiyi Zhao, Yaohong Xiao, Xinxin Yao, Karnpiwat Tantratian, Ying Xu, Lei Chen

{"title":"Toward Deciphering the Internal Menace of Battery Safety: Soft Short Circuit Versus Hard Short Circuit?","authors":"Hanghang Yan, Jinrong Su, Zhiyi Zhao, Yaohong Xiao, Xinxin Yao, Karnpiwat Tantratian, Ying Xu, Lei Chen","doi":"10.1002/aenm.202500275","DOIUrl":"https://doi.org/10.1002/aenm.202500275","url":null,"abstract":"Internal short circuits (ISC) from Li dendrites pose crucial challenges to the safety and reliability of electric vehicle power batteries. However, fundamental knowledge of how local/microscopic Li‐dendrites initiate ISC and early identification remains unclear. Particularly for soft ISC, presents the transient shorting and un‐shorting that occurs on the microsecond‐to‐seconds timescale. Herein, a general phase‐field‐based multiscale ISC model is developed to monitor the “real‐time” life cycle of Li dendrite‐induced ISC from a physics‐based perspective across micro‐to‐cell level. Validated by ISC experiments, the results show: 1) hard short‐circuits exhibit < 1 Ω contact resistance, while soft short‐circuits range from 102–103Ω, 2) soft short‐circuits involve dozens/hundreds of competitive Li‐deposition‐dissolving cycles. For each cycle, Li dissolving persists for ≈70% cycle time where Li local self‐discharge and dissolution counteract Li growth, consistent with experimentally observed “stagnant” dendrite growth, 3) “Fake stable” voltage behavior is observed during soft ISC, where voltage increases despite Li filaments connecting the cathode, 4) when capacity loss rate >0.005mAh s−1, soft ISC permanently transition to hard ISC. These results demonstrate the dominant mechanism of the Li‐dendrite re‐dissolving (i.e., voltage recovery, resulting in un‐shorting) is local self‐discharge current density, which defeat critical current density of Li‐deposition at the dendrite tip region.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"10 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144547307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microfluidic‐Spinning‐Chemistry Strategy toward in‐situ Generation of High‐Performance Nickel Molybdate/Porous Graphene Carbonene Fiber‐based Supercapacitors 微流控-纺丝-原位制备高性能钼酸镍/多孔石墨烯碳纤维超级电容器的化学策略

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-07-03 DOI: 10.1002/aenm.202501418

Jiazhuang Guo, Ying Zhang, Liangliang Zhou, Wenteng Hou, Jinze Wang, Liangliang Zhu, Su Chen

{"title":"Microfluidic‐Spinning‐Chemistry Strategy toward in‐situ Generation of High‐Performance Nickel Molybdate/Porous Graphene Carbonene Fiber‐based Supercapacitors","authors":"Jiazhuang Guo, Ying Zhang, Liangliang Zhou, Wenteng Hou, Jinze Wang, Liangliang Zhu, Su Chen","doi":"10.1002/aenm.202501418","DOIUrl":"https://doi.org/10.1002/aenm.202501418","url":null,"abstract":"Graphene carbonene fiber (GCF) supercapacitors are promising for portable/wearable electronics but suffer from fabrication‐induced restacking and uneven hybridization between graphene sheets and hybrid active materials, degrading electrochemical performance and hindering practical applications. Here, an innovative microfluidic‐spinning‐chemistry (MSC) method is proposed for the in situ construction of the nickel molybdate/porous GCF (NiMoO4/PGCF) hybrid, which manifests a large specific surface area, high electrical conductivity, and abundant redox activity, facilitating ion diffusion, and ensuring energy storage and supply. As a result, the NiMoO4/PGCFs express an exceptional areal capacitance of 3597.7 mF cm−2 in a three‐electrode system. Additionally, this flexible solid‐state NiMoO4/PGCF supercapacitor presents large areal capacitance (1006.8 mF cm−2), ultrahigh energy density (218.5 µWh cm−2), and long‐term cycling stability (90.2% capacitive retention at 1 mA cm−2 after 20 000 cycles), which is capable of powering a toy windmill without extra recharging by other power sources. Furthermore, a demonstration of a supercapacitive controller using the solid‐state NiMoO4/PGCF is presented, which could couple with a triode to manage the takeoff of gliding unmanned aircraft. This provides high‐efficiency start/stop control and safety redundancy for gliding unmanned aircraft, while also paving the way for the innovation of next‐generation gliding unmanned aircraft energy management and control systems.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"10 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144547251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Li and Vacancy Co‐Enriched Halide Electrolytes via Non‐Equimolar Substitution for Stable All‐Solid‐State Lithium Batteries 通过非等摩尔替代制备稳定全固态锂电池的Li和空位Co富集卤化物电解质

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-07-02 DOI: 10.1002/aenm.202501255

Mingyi Tang, Jianqi Sun, Caohua He, Chengyi Hou, Qinghong Zhang, Yaogang Li, Zongyi Qin, Kerui Li, Hongzhi Wang

{"title":"Li and Vacancy Co‐Enriched Halide Electrolytes via Non‐Equimolar Substitution for Stable All‐Solid‐State Lithium Batteries","authors":"Mingyi Tang, Jianqi Sun, Caohua He, Chengyi Hou, Qinghong Zhang, Yaogang Li, Zongyi Qin, Kerui Li, Hongzhi Wang","doi":"10.1002/aenm.202501255","DOIUrl":"https://doi.org/10.1002/aenm.202501255","url":null,"abstract":"Halide solid electrolytes (SEs) have emerged as promising candidates for all‐solid‐state batteries (ASSBs) owing to their considerable ionic conductivity, mechanical deformability, and compatibility with high‐voltage cathodes. However, the conventional equimolar substitution strategy for developing halide SEs has limitations, as it fails to simultaneously ensure the presence of abundant vacancies and mobile Li‐ions, which are two critical factors governing ionic conductivity. Herein, a non‐equimolar substitution strategy is adopted to design a Li and vacancy co‐enriched Li2Zr0.75Ta0.2Cl6 with high ionic conductivity (1.74 mS cm−1) and compatibility with high‐voltage Ni‐rich cathode. Specifically, more Zr4+ is substituted with less Ta5+ to generate Zr‐vacancies without depleting Li‐ion content while maintaining charge neutrality. Under the Li‐rich state, abundant Zr‐vacancies provide additional Li‐ion migration pathways within the non‐Li‐centered octahedral framework and promote uniform and efficient Li‐ion transport. ASSBs assembled with single‐crystalline LiNi0.8Co0.1Mn0.1O2 (scNCM811) cathode demonstrate exceptional cycling stability with high‐capacity retention (80.0% over 7800 cycles) and maintain stable cycling over 12 000 cycles at a high rate of 5 C. Notably, even under high loading conditions (20.62 mg cm−2 scNCM811), the ASSBs maintained a capacity retention of 80.8% over 800 cycles and 70.1% over 2300 cycles at a high rate of 1 C.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"28 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144547314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Autogenous Pressure Assisted Aqua‐Thermal Regeneration of Spent Graphite in a Designed Reactor: Second‐Life Electrochemistry and Technoenvironmental Benefits 在设计的反应器中自压辅助水热再生废石墨：二次寿命电化学和技术环境效益

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-07-02 DOI: 10.1002/aenm.202501921

Sayan Khamaru, Shuvajit Ghosh, Surendra K. Martha

{"title":"Autogenous Pressure Assisted Aqua‐Thermal Regeneration of Spent Graphite in a Designed Reactor: Second‐Life Electrochemistry and Technoenvironmental Benefits","authors":"Sayan Khamaru, Shuvajit Ghosh, Surendra K. Martha","doi":"10.1002/aenm.202501921","DOIUrl":"https://doi.org/10.1002/aenm.202501921","url":null,"abstract":"A green and sustainable route of recycling spent graphite is the solution of its forthcoming shortage. Present recycling approaches include high‐temperature treatment in the range of 700–1500 °C accompanied by several steps of washing with toxic solvents causing secondary environment pollution. Herein, a solvothermal stirring reactor is designed, which accomplishes graphite regeneration at an appreciably low temperature of 200 °C in aqueous media. The simultaneous impact of temperature and centrifugal force assisted by the pressure autogenerated within closed reactor eliminates surface impurity, repairs structural disorder, and yields 99.9% pure product. Regenerated graphite serves second life as good as first life exhibiting Li+‐intercalation capacity of 321 mAh g−1 at 0.5C current rate with 92.8% capacity retention after 200 cycles. This one‐step graphite reclamation route is environmentally benign too reducing energy input, water consumption, and greenhouse gas emissions as quantified by techno‐environmental calculations.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"123 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144547315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Constructing Asymmetric Ir‐O‐Ru Unit to Promote Rapid Deprotonation and Stable Lattice Oxygen in PbIrRu Pyrochlores for Water Oxidation 构建不对称Ir - O - Ru单元促进PbIrRu焦绿石快速脱质子和稳定晶格氧用于水氧化

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-07-02 DOI: 10.1002/aenm.202501860

Yixuan Huang, Yufeng Qin, Qingqing Ye, Jiahao Wang, Meiling Dou, Feng Wang

{"title":"Constructing Asymmetric Ir‐O‐Ru Unit to Promote Rapid Deprotonation and Stable Lattice Oxygen in PbIrRu Pyrochlores for Water Oxidation","authors":"Yixuan Huang, Yufeng Qin, Qingqing Ye, Jiahao Wang, Meiling Dou, Feng Wang","doi":"10.1002/aenm.202501860","DOIUrl":"https://doi.org/10.1002/aenm.202501860","url":null,"abstract":"Exploring efficient and durable low‐iridium (Ir) catalysts for the oxygen evolution reaction (OER) is crucial for the commercialization of proton exchange membrane water electrolysis (PEMWE). Herein, asymmetric Ir‐O‐Ru active units are constructed in PbIrRu pyrochlore (Pb2(IrRu)2O7−δ) by incorporating ruthenium (Ru) sites into PbIr pyrochlore through a scalable hydrothermal strategy. Soft X‐ray absorption spectroscopy, operando characterizations, and DFT calculations reveal that the Ir‐O‐Ru units promote rapid deprotonation of oxo‐intermediates (*OH→*O) for enhancing OER kinetics by modulating charge distribution of oxygen through breaking bridged‐oxygen symmetry in [IrO6] octahedral units. Operando differential electrochemical mass spectrometry demonstrates that these asymmetric units also stabilize lattice oxygen during OER catalysis by strengthening metal‐oxygen bonds, which suppresses metal oxidation/dissolution and thus contributes to a superior OER durability. The optimized Pb2(IrRu)2O7−δ exhibits a low overpotential of 188 mV at 10 mA cm−2 and a large mass activity of 1290.2 A g−1Ir+Ru (16.4 and 46.7 times that of commercial IrO2 and RuO2, respectively) in 0.5 m H2SO4. The assembled PEMWE with anode loading of ∼0.36 mgIr+Ru cm−2 achieves 1 A cm−2 at 1.72 V and durably operates for 300 h at high current density with negligible attenuation. This work provides new insights into designing high‐performance pyrochlore‐based low‐Ir catalysts for PEMWE applications.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"3 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144547310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hierarchically Conformal Li+/Electron Conductive and Mechanically Robust Interface Enabling Natural Graphite Anodes for Fast‐Charging and Long‐Cycling Operation 分层共形Li+/电子导电和机械坚固的界面，使天然石墨阳极实现快速充电和长周期操作

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-07-02 DOI: 10.1002/aenm.202500978

Yu Dong, Feng Wu, Tongren Chen, Yuefeng Su, Suting Weng, Cai Liu, Wengang Yan, Siyuan Ma, Lai Chen, Qing Huang, Bin Wang, Yibiao Guan, Xuefeng Wang, Ning Li

{"title":"Hierarchically Conformal Li+/Electron Conductive and Mechanically Robust Interface Enabling Natural Graphite Anodes for Fast‐Charging and Long‐Cycling Operation","authors":"Yu Dong, Feng Wu, Tongren Chen, Yuefeng Su, Suting Weng, Cai Liu, Wengang Yan, Siyuan Ma, Lai Chen, Qing Huang, Bin Wang, Yibiao Guan, Xuefeng Wang, Ning Li","doi":"10.1002/aenm.202500978","DOIUrl":"https://doi.org/10.1002/aenm.202500978","url":null,"abstract":"Lithium‐ion batteries have revolutionized global energy storage systems; however, current technologies fall short of meeting fast‐charging and long‐cycling demands, primarily due to the inadequate rate performance and cycling stability of graphite anode materials. Herein, a surface polarity regulation strategy is proposed to construct a hierarchically conformal Li+/electron conductive and mechanically robust interface on natural graphite anodes, consisting of an inner N‐doped carbon layer and an outer Li3PO4 layer. Various in situ characterizations unravel that an inorganic solid electrolyte interface (SEI) can be derived with great mechanical robustness and superior stability, and this derived SEI with the artificial interface can not only greatly facilitate the de‐solvation process as well as Li⁺ and electron transport, but also reduce the strain accumulation and the structural instability, and inhibit the formation of lithium dendrites as well. The as‐modified natural graphite anode demonstrates remarkable rate performance with 10 C rate capacity retention of 71.8% to that of 0.1 C rate, and outstanding long‐cycle performance with 95.9% capacity retention after 1000 cycles. This surface engineering approach should inspire the development of long‐cycle‐life and fast‐charging anode materials for future lithium‐ion batteries.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"15 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144532977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing Solid Oxide Fuel Cells Development through Bayesian Active Learning 通过贝叶斯主动学习促进固体氧化物燃料电池的发展

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-07-02 DOI: 10.1002/aenm.202501216

R. K. Jeela, G. Tosato, M. Ahmad, M. Wieler, A. Koeppe, B. Nestler, D. Schneider

{"title":"Enhancing Solid Oxide Fuel Cells Development through Bayesian Active Learning","authors":"R. K. Jeela, G. Tosato, M. Ahmad, M. Wieler, A. Koeppe, B. Nestler, D. Schneider","doi":"10.1002/aenm.202501216","DOIUrl":"https://doi.org/10.1002/aenm.202501216","url":null,"abstract":"Ensuring the sustainable operation of solid‐oxide fuel cells (SOFCs) requires an understanding of the components' lifespan. Multiphase‐field simulation studies play a major role in understanding the underlying microstructural changes and the resulting property alterations in SOFCs over time. The primary challenge in such simulations lies in identifying a suitable model and defining its parametrization. This study presents an Active Learning framework combined with Bayesian Optimization to identify optimal model parameters to simulate the aging of nickel‐gadolinium doped ceria (Ni‐GDC) anodes. The study overcomes incompleteness and inconsistency of literature data, and navigates the complex, high‐dimensional parameter space, by leveraging experimental microstructure data and the power of the AL framework. The successful parameter search enables simulation studies of Ni‐GDC anode aging and performance during long‐term SOFC operation. This approach improves the accuracy of phase‐field simulations and offers a versatile tool for broader applications in SOFC development, predicting material behavior under various operational conditions.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"16 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144547312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced Bifunctional Oxygen Electrocatalysis by Synergistic Active Heterostructure Design 增效活性异质结构设计增强双功能氧电催化

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-07-02 DOI: 10.1002/aenm.202502493

Taotao Li, Bingchen Liu, Haotian Guo, Pengfei Wang, Zonglin Liu, Qinzhi Lai, Qianyu Zhang, Ting‐Feng Yi

{"title":"Enhanced Bifunctional Oxygen Electrocatalysis by Synergistic Active Heterostructure Design","authors":"Taotao Li, Bingchen Liu, Haotian Guo, Pengfei Wang, Zonglin Liu, Qinzhi Lai, Qianyu Zhang, Ting‐Feng Yi","doi":"10.1002/aenm.202502493","DOIUrl":"https://doi.org/10.1002/aenm.202502493","url":null,"abstract":"Due to the slower kinetics and different reaction requirements of the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), it is challenging to balance between the two reaction properties. In this work, CoFe2O4/Co heterostructure are designed by in situ loading of carbon dots (CDs) ‐mediated metal sites onto porous carbon sphere substrates (CSs) to achieve highly durable bifunctional catalysts (FeCoCDs/CSs). Experimental and theoretical calculations demonstrate that the strong metalcarrier interaction interface promotes dynamic electron transfer between CoFe2O4 and Co, improves electronic conductivity, and enhances the stability of FeCoCDs/CSs catalysts. CDs effectively regulate the electronic environment of the active sites of Co, optimize the adsorption behavior of O*/OH*, and promote the release of final products. The designed FeCoCDs/CSs exhibit excellent ORR/OER performance with an oxygen potential difference (ΔE) of 0.635 V. Liquid zinc‐air batteries (ZABs) with FeCoCDs/CSs show outstanding cycling stability (ΔE) of 0.635 V) and high round‐trip efficiency (64.7%). The flexible ZABs (FZABs) with FeCoCDs/CS also deliver excellent cycling stability over a wide temperature range (60–‐40 °C), demonstrating its ruggedness and suitability for practical applications under various environmental conditions.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"150 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144547311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrathin, Layer‐by‐Layer Assembled Lithiophilic Interlayers for Dendritic Growth‐Suppressed Lithium Metal Anodes 用于抑制枝晶生长的锂金属阳极的超薄、逐层组装的亲锂中间层

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-07-02 DOI: 10.1002/aenm.202500850

Donghyeon Nam, Kyuho Jin, Tae Hwan Jo, Chanseok Lee, Keun Hee Kim, Hyewon Kang, Ho Yeon Jang, Younghoon Kim, Seung Woo Lee, Seoin Back, Yongmin Ko, Jinhan Cho

{"title":"Ultrathin, Layer‐by‐Layer Assembled Lithiophilic Interlayers for Dendritic Growth‐Suppressed Lithium Metal Anodes","authors":"Donghyeon Nam, Kyuho Jin, Tae Hwan Jo, Chanseok Lee, Keun Hee Kim, Hyewon Kang, Ho Yeon Jang, Younghoon Kim, Seung Woo Lee, Seoin Back, Yongmin Ko, Jinhan Cho","doi":"10.1002/aenm.202500850","DOIUrl":"https://doi.org/10.1002/aenm.202500850","url":null,"abstract":"Lithium (Li) metal, recognized for its high energy potential, serves as a promising anode material in battery technologies. However, the growth of Li dendrites during charging and discharging cycles presents significant safety and durability challenges. To address these challenges, a novel strategy is developed employing an ultrathin, layer‐by‐layer (LbL) assembled multi‐walled carbon nanotube forest (MWCF) interlayer that is uniquely composed of lithiophilic components without inactive binders. Strategically deposited on one side of the separator, the LbL‐assembled MWCF interlayer ensures excellent electrical conductivity and forms seamless interfaces with the separator, optimizing ion transport and reducing local current density. This configuration allows for uniform Li plating while preventing dendrite penetration toward the cathode, thus enhancing safety and extending the cell's lifespan. This approach has demonstrates exceptional cycling stability, sustaining over 10 000 h of operation at 1 mA cm−2 and 1 mAh cm−2 in a symmetric Li | Li cell, surpassing previously reported results. Furthermore, an LiNi0.8Mn0.1Co0.1O2‐based asymmetric cell exhibits remarkable durability, maintaining ≈81.9% of its capacity after 600 cycles at 1 C, and achieving an ultrahigh energy of 678 Wh Kg−1. An LiFePO4‐based asymmetric cell also demonstrates superior cycling stability, further validating the effectiveness of our approach.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"41 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144547316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Controllable Construction of Active Sites for Catalytic Conversion and Spatial Constraints Applied to High‐Performance Lithium–Sulfur Batteries 高性能锂硫电池催化转化活性位点的可控构建及空间约束

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-07-02 DOI: 10.1002/aenm.202502210

Jiawen Huangfu, Pingxian Feng, Xianfei Di, Yihui Tian, Mengqi Shi, Wei Hu, Xin Zhao, Shoujuan Wang, Yuebin Xi, Fangong Kong, Huan Wang

{"title":"Controllable Construction of Active Sites for Catalytic Conversion and Spatial Constraints Applied to High‐Performance Lithium–Sulfur Batteries","authors":"Jiawen Huangfu, Pingxian Feng, Xianfei Di, Yihui Tian, Mengqi Shi, Wei Hu, Xin Zhao, Shoujuan Wang, Yuebin Xi, Fangong Kong, Huan Wang","doi":"10.1002/aenm.202502210","DOIUrl":"https://doi.org/10.1002/aenm.202502210","url":null,"abstract":"The structural control of the positive sulfur carrier is very important to inhibit the shuttle effect of polysulfide and improve the overall performance of lithium–sulfur batteries. However, the microstructure of the carbon material carrier is uncontrollable, and it is difficult to coordinate and unify the pores and active sites. Here, Nitrogen and phosphorus co‐doped porous carbon (N/P‐LPC‐900) is obtained through the simple activation method of potassium phosphate to achieve the structural regulation of porous and heteroatoms in one step. N/P‐LPC‐900 shows a graphene‐like porous thin structure, which will provide the particular domain to adsorb polysulfide. The DFT results indicate that N‐6‐P has the strongest catalytic sulfur conversion ability. Further, in situ Raman characterization proves that the signals of Li2S6 and Li2S4 on the anode side of the N/P‐LPC‐900 battery are significantly weakened after the end of the first stage of discharge. Theory combined with experiment to verify that the co‐doping of N and P for LPC can efficiently catalyze the conversion of polysulfide into Li2S to inhibit the shuttle effect. This work provides a feasible way for the study of sulfur carriers, and lays a theoretical foundation for the construction of high‐performance heteroatom doped porous carbon.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"47 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144532976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0