Energy Storage Materials最新文献

Improving the rate performance of lithium metal anodes: In-situ formation of 3D interface structures by mechanical mixing with sodium metal

IF 20.4 1区材料科学

Energy Storage Materials Pub Date : 2024-12-19 DOI: 10.1016/j.ensm.2024.103975

Markus Mann, Christian Schwab, Lara Caroline Pereira dos Santos, Robert Spatschek, Dina Fattakhova-Rohlfing, Martin Finsterbusch

{"title":"Improving the rate performance of lithium metal anodes: In-situ formation of 3D interface structures by mechanical mixing with sodium metal","authors":"Markus Mann, Christian Schwab, Lara Caroline Pereira dos Santos, Robert Spatschek, Dina Fattakhova-Rohlfing, Martin Finsterbusch","doi":"10.1016/j.ensm.2024.103975","DOIUrl":"https://doi.org/10.1016/j.ensm.2024.103975","url":null,"abstract":"Lithium metal anodes (LMA) increase the energy density of lithium-ion batteries, but the formation of lithium dendrites above a critical charging current (CCD) is still a severe safety issue that limits their wide industrial application. In this work, we present a simple, scalable method to improve the properties of LMA and increase the CCD by physical mixing with a small amount of Na metal, leading to a formation of self-organized 3D interfacial structures during cycling. The physical premixing of Li and Na metal results in excellent dispersion of the metals without phase separation or clustering. To demonstrate the effectiveness of these LiNa anodes in solid-state cells with oxide-ceramic Li6.45Al0.05La3Zr1.6Ta0.4O12 (LLZO) separators, by melt-quenching them directly onto the LLZO surface. The application of a special formation protocol during cycling leads to the in-situ formation of a 3D Na-metal interfacial structure, which improves the cell performance. The symmetric cells prepared in this way were operated without external pressure (0.1 MPa) and showed record CCDs for planar interfaces of over 5.0 mA∙cm−2, cycling stability of over 1200 cycles, and a total stripping capability of up to 100 µm Li metal, corresponding to a capacity of 21 mAh∙cm−2. Most remarkably, our approach resulted in a very low impedance of the Li/LLZO interface, which remained constant even at high stripping/plating rates. The new approach provides an industrially scalable method for fabricating next generation LMAs with an inherently reduced tendency to dendrite formation, which can be readily utilized in a variety of next-generation lithium batteries.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"86 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142858032","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

Revisiting Self-Discharge of Supercapacitors with Multilayered Graphene Membrane as a Model Nanoporous Electrode

IF 20.4 1区材料科学

Energy Storage Materials Pub Date : 2024-12-19 DOI: 10.1016/j.ensm.2024.103969

Xiaoyang Du, Wen-Jie Jiang, Lianhai Zu, Desheng Feng, Xiao Wang, Mengran Li, Peiyao Wang, Yang Cao, Yufei Wang, Qinghua Liang, Dan Li

{"title":"Revisiting Self-Discharge of Supercapacitors with Multilayered Graphene Membrane as a Model Nanoporous Electrode","authors":"Xiaoyang Du, Wen-Jie Jiang, Lianhai Zu, Desheng Feng, Xiao Wang, Mengran Li, Peiyao Wang, Yang Cao, Yufei Wang, Qinghua Liang, Dan Li","doi":"10.1016/j.ensm.2024.103969","DOIUrl":"https://doi.org/10.1016/j.ensm.2024.103969","url":null,"abstract":"Self-discharge in electrochemical energy storage systems, particularly in electric double-layer capacitors, poses significant challenges due to the spontaneous dissipation of stored charges at electrode/electrolyte interfaces, which compromises device performance and energy efficiency. Despite decades of research, the underlying mechanisms of self-discharge remain a subject of debate. In this study, we use multilayered graphene-based membranes with adjustable nanoslit sizes as an additive-free electrode material platform to revisit the self-discharge in nanoporous electrodes. By integrating a hybrid self-discharge model with a comprehensive electrochemical characterization, we identified activation-controlled Faradaic reactions as the primary driver of self-discharge, but ruled out traditionally suggested reactions like carbon oxidation and water splitting in carbon-based electric double-layer capacitors with aqueous electrolytes. Furthermore, the observed ion identity-dependent self-discharge underscores the pivotal role of electrolyte ions in self-discharge, highlighting this overlooked aspect in the conventional hybrid model. Our findings highlight the inherent challenges in studying self-discharge and the need to further develop advanced research methods and models to address this enduring problem.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"53 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142849733","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

Guiding the Crystal Orientation to Coordinate Zinc Deposition for High-durable Zinc-ion Batteries

IF 20.4 1区材料科学

Energy Storage Materials Pub Date : 2024-12-19 DOI: 10.1016/j.ensm.2024.103967

Yi Yang, Qier Liang, Bin Xie, Chaohe Zheng, Shude Liu, Lieyuan Zhang, Yijia Luo, Qiang Hu, Haoyu Ma, Yijun Zhai, Yu Huo, Xingqiao Wu, Xin Tan, Qiaoji Zheng, Dunmin Lin

{"title":"Guiding the Crystal Orientation to Coordinate Zinc Deposition for High-durable Zinc-ion Batteries","authors":"Yi Yang, Qier Liang, Bin Xie, Chaohe Zheng, Shude Liu, Lieyuan Zhang, Yijia Luo, Qiang Hu, Haoyu Ma, Yijun Zhai, Yu Huo, Xingqiao Wu, Xin Tan, Qiaoji Zheng, Dunmin Lin","doi":"10.1016/j.ensm.2024.103967","DOIUrl":"https://doi.org/10.1016/j.ensm.2024.103967","url":null,"abstract":"The Zn(002) texture deposition with high thermodynamic stability is considered to be an efficient approach for mitigating dendrite growth and side reactions. However, attaining (002) plane-oriented Zn deposition is difficult because of significant lattice deformation and non-uniform electric field distribution. Herein, an electrolyte containing N, N-diethylchloroacetamide (CDEA) is proposed to regulate the epitaxial deposition of Zn2+. The CDEA molecule exhibits the preferential adsorption on Zn(101) via the polar -C=O group in CDEA, thereby promoting the predominant exposure of the Zn2+ plane with the lowest deposition rate on Zn(101), which in turn facilitates uniform Zn deposition along the Zn(101) orientation. Consequently, the asymmetrical Zn//Cu cell has exceptional cycling stability, exceeding 1700 cycles with an average coulombic efficiency (CE) of up to 99.72%. Moreover, the Zn//VO2 full cell can stably maintain a high specific capacity of 245.5 mAh g−1 even after 4000 cycles. The current work sheds new light on how to generate dendrite-free Zn anodes using crystal plane manipulation techniques.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"4 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142849734","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

Novel air-rechargeable aqueous Zn-based batteries with N-doped hierarchical-porous carbon as the capacitor-type cathode

IF 20.4 1区材料科学

Energy Storage Materials Pub Date : 2024-12-19 DOI: 10.1016/j.ensm.2024.103968

Zhitang Fang, Weizhi Kou, Yangyang Sui, Cong Liu, Luming Peng, Weiping Ding, Xuefeng Guo, Wenhua Hou

{"title":"Novel air-rechargeable aqueous Zn-based batteries with N-doped hierarchical-porous carbon as the capacitor-type cathode","authors":"Zhitang Fang, Weizhi Kou, Yangyang Sui, Cong Liu, Luming Peng, Weiping Ding, Xuefeng Guo, Wenhua Hou","doi":"10.1016/j.ensm.2024.103968","DOIUrl":"https://doi.org/10.1016/j.ensm.2024.103968","url":null,"abstract":"The existing air-rechargeable aqueous Zn-based batteries (AZBBs) possess an ultraslow air-charging speed, seriously restricting their further development. Herein, we innovatively constructed the capacitor-type air-rechargeable AZBBs based on KOH-activated and nitrogen-doped hierarchical-porous carbon (K-NHPC) cathode, completely breaking away from the customary thinking mode of electrode optimization and fundamentally breaking through the limitation of air-charging speed. As a result, K-NHPC cathode can complete an air self-charging process in a very short time of only 40 minutes and its average hourly air-charging capacity is high up to 248.9 mAh g−1h−1, benefiting from its ultrafast processes of charge desorption and oxygen reduction reaction (ORR). Compared with that of the existing air-rechargeable AZBBs, the air-charging speed of our capacitor-type air-rechargeable AZBBs has been significantly increased by an order of magnitude. The charge-storage and air-charging mechanisms are untangled in detail through a series of in-situ/ex-situ experimental characterizations and theoretical calculations. Especially, we first disclose that the redox reaction and charge redistribution can cause the air self-charging and the resultant potential rise of NHPC cathode. Furthermore, the multi-scenario application prospects (a wide temperature range, flexible devices and pouch cells) of our capacitor-type air-rechargeable AZBBs have been verified. This work blazes a new trail of AZBBs with an ultrafast air self-charging speed, which is of great fundamental and original significance.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"261 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142858150","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

Achieving Exceptional High-Temperature Capacitance Energy Storage in Polyimide through Aromatic Structure-Based Electron Induced Effects

IF 20.4 1区材料科学

Energy Storage Materials Pub Date : 2024-12-19 DOI: 10.1016/j.ensm.2024.103974

Wenxia Sima, Yuxiang Mai, Potao Sun, Ming Yang, Tao Yuan, Binghao Chen, Yuhang Yang

{"title":"Achieving Exceptional High-Temperature Capacitance Energy Storage in Polyimide through Aromatic Structure-Based Electron Induced Effects","authors":"Wenxia Sima, Yuxiang Mai, Potao Sun, Ming Yang, Tao Yuan, Binghao Chen, Yuhang Yang","doi":"10.1016/j.ensm.2024.103974","DOIUrl":"https://doi.org/10.1016/j.ensm.2024.103974","url":null,"abstract":"Polyimide, endowed with high thermal resistance due to its aromatic structure, is considered a potential candidate for high-temperature polymer dielectrics. However, the strong electron delocalization in the aromatic structure causes significant leakage current during high-temperature electron transport, impairing energy storage performance. This contradictory relationship presents a bottleneck in enhancing the high-temperature energy storage performance of PI. In this work, inspired by fish migration influenced by vortices, we propose inducing electron displacement through fluorine-modified aromatic structures, constructing an internal electric field in PI to affect electron transport. This approach cleverly resolves the conflict between thermal resistance and current loss caused by the aromatic main chain in PI, achieving a synergistic enhancement of thermal resistance and high-temperature energy storage performance. Experimental results show significant improvements in both the high heat-resistant quality and high-temperature energy storage performance of PI. The glass transition temperature increased from 257.32 °C to 264.07 °C, and the leakage current density decreased from 7.1 × 10-7 A/cm2 to 2.8 × 10-8 A/cm². Simultaneously, with a charge-discharge efficiency of approximately 90%, the discharge energy density increased from 0.36 J/cm3 to 5.22 J/cm3, an improvement of 1345.98%. This strategy validates the potential of aromatic structures as the main chain for high-temperature energy storage polymers.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"23 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142849748","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

Wide-Temperature Solid-State Sodium Metal Batteries Using Na+ Superionic Conductor-Type Solid Electrolytes

IF 20.4 1区材料科学

Energy Storage Materials Pub Date : 2024-12-18 DOI: 10.1016/j.ensm.2024.103973

Debao Fang, Yali Li, Chengzhi Wang, Runqing Miao, Shuaishuai Yang, Yu Zhao, Yu Ding, Jingxin He, Lai Chen, Ning Li, Jingbo Li, Yuefeng Su, Haibo Jin

{"title":"Wide-Temperature Solid-State Sodium Metal Batteries Using Na+ Superionic Conductor-Type Solid Electrolytes","authors":"Debao Fang, Yali Li, Chengzhi Wang, Runqing Miao, Shuaishuai Yang, Yu Zhao, Yu Ding, Jingxin He, Lai Chen, Ning Li, Jingbo Li, Yuefeng Su, Haibo Jin","doi":"10.1016/j.ensm.2024.103973","DOIUrl":"https://doi.org/10.1016/j.ensm.2024.103973","url":null,"abstract":"Solid-state sodium metal batteries (SSMBs) are considered as one of the critical technologies for safe and high-energy-density batteries. However, most SSMBs encounter poor cycling performance due to the sluggish charge transfer processes across the solid-solid interfaces. Based on a cation doping strategy, Al3+ and Zn2+ doped Na3Zr2Si2PO12 solid electrolytes (SEs) are comprehensively examined to decouple their ionic conductivities and interfacial resistances with sodium metal in a wide temperature range of -20-80 °C. The Zn2+ doping signifies more favorable effect than the Al3+ doping on improving the conductivity and reducing the interfacial resistance. The Na3.20Zr1.90Zn0.10Si2PO12 SE shows an optimal conductivity of 1.58 mS cm-1 at 30 °C, which is over 4 times higher than that of Na3Zr2Si2PO12, and possesses intrinsically small interfacial resistances of 229.80, 24.72, and 2.96 ohm cm⁻² at -20, 30, and 60 °C, respectively. Stable sodium plating/stripping cycles over long terms are achieved, specifically demonstrating accumulated capacities of 90, 300, and 582 mAh cm-2 at 0, 30, and 60 °C, respectively. Moreover, full cells using a Na3V2(PO4)3 cathode exhibit notable cycling stability at 0 °C with a high retention of 90.4% over 1800 cycles, providing insights into the practical SSMBs operating in diverse temperature conditions.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"271 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142849737","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

Trace high-valence ions induced surface coherent phase stabilized high voltage LiCoO2

IF 20.4 1区材料科学

Energy Storage Materials Pub Date : 2024-12-16 DOI: 10.1016/j.ensm.2024.103950

Muhammad Imran, Zhongsheng Dai, Fiaz Hussain, Wei Xia, Renjie Chen, Feng Wu, Li Li

{"title":"Trace high-valence ions induced surface coherent phase stabilized high voltage LiCoO2","authors":"Muhammad Imran, Zhongsheng Dai, Fiaz Hussain, Wei Xia, Renjie Chen, Feng Wu, Li Li","doi":"10.1016/j.ensm.2024.103950","DOIUrl":"https://doi.org/10.1016/j.ensm.2024.103950","url":null,"abstract":"Employing higher voltage (≥4.6 V) is an effective strategy to achieve higher energy densities in LiCoO2 based lithium-ion batteries. However, higher-voltage operation was generally followed by more severely surface to bulk structure deterioration, leading to rapid battery performance decay. Herein, a co-doping strategy involving in trace high-valence tantalum and niobium doping in LiCoO2 material was proposed. Owing to the charge neutralization effect, the incorporated Ta and Nb ions induced the Co to lower valence state, which could further migrate to the Li layer for the similar ionic radius, and thus a nanoscale disordered layer on LiCoO2 surface was successfully constructed. The stable disordered layer with tiny lattice mismatch to inner layered structure (coherent phase) could serve as an “armor” to restrain surface side reactions with electrolyte. Furthermore, the strong Ta-O and Nb-O bonding could act as an “oxygen anchor” to inhibit excessive oxygen oxidation under high-voltage operation. This helped the modified cathode showed 82.1% capacity retention after 100 cycles (4.6 V). Furthermore, the full cell composed of modified cathode and graphite anode revealed a remarkable capacity retention of 98% after 400 cycles. This study provides deep insights into the different phenomena associated with interfacial and structural parameters that need to be tuned to enhance the electrochemical performance at elevated voltages.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"23 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142825725","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

Suppressing Organic Cation Reactivity in Locally Concentrated Ionic Liquid Electrolytes for Lithium Metal Batteries

IF 20.4 1区材料科学

Energy Storage Materials Pub Date : 2024-12-16 DOI: 10.1016/j.ensm.2024.103966

Sewon Eom, Minhee Park, Bonhyeop Koo, Chang-eui Yang, Junsik kang, Hongkyung Lee, Won Bo Lee, Hochun Lee

{"title":"Suppressing Organic Cation Reactivity in Locally Concentrated Ionic Liquid Electrolytes for Lithium Metal Batteries","authors":"Sewon Eom, Minhee Park, Bonhyeop Koo, Chang-eui Yang, Junsik kang, Hongkyung Lee, Won Bo Lee, Hochun Lee","doi":"10.1016/j.ensm.2024.103966","DOIUrl":"https://doi.org/10.1016/j.ensm.2024.103966","url":null,"abstract":"The quest for highly stable ionic liquid electrolytes is vital for longer, safer cycling of Li-metal batteries (LMBs), given their nonflammable nature and broad electrochemical window. Locally concentrated ionic liquid electrolytes (LCILEs) have emerged by incorporating anti-solvating co-solvents to address the high viscosity and poor conductivity of Li+-concentrated ionic liquids. Although solvation and interface chemistry are crucial in determining cell performance, the impacts of organic cations in LCILEs remain overlooked. This work unravels the co-solvent-guided mediation of organic cation reactivity toward Li metal anodes. The donor number (DN) of co-solvents is found to significantly influence their local distribution within LCILEs, modulating Coulombic interactions between Li+–anion complexes and organic cations. Low DN co-solvents, such as hydrofluoroethers, hardly interact with Li+–anion complexes but dissociate and destabilize organic cations, adversely promoting organic cation decomposition at Li metal anodes. Conversely, high DN co-solvents prefer to occupy the Li+ solvation sheath, promoting organic cation–anion association and mitigating the cathodic decomposition. Suppressing the reactivity of organic cations in LCILEs is essential for proper anion-derived solid-electrolyte interphase formation and stable cycling of LMBs. The controlled reactivity of organic cations in concentrated ionic liquid electrolytes incorporating high DN co-solvent enables stable cycling of LMBs under stringent conditions, achieving 95% capacity retention over 200 cycles.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"11 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142832884","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

Boosted Capacity and Stability of Aqueous Iron-Sulfur Battery using DMSO as an Electrolyte Additive 使用二甲基亚砜作为电解质添加剂提高铁硫水溶液电池的容量和稳定性

IF 20.4 1区材料科学

Energy Storage Materials Pub Date : 2024-12-15 DOI: 10.1016/j.ensm.2024.103965

Man Singh, Sukhjot Kaur, Shivangi Mehta, Mukesh Kumar, Kush Kumar, Santosh Kumar Meena, Tharamani C. Nagaiah

{"title":"Boosted Capacity and Stability of Aqueous Iron-Sulfur Battery using DMSO as an Electrolyte Additive","authors":"Man Singh, Sukhjot Kaur, Shivangi Mehta, Mukesh Kumar, Kush Kumar, Santosh Kumar Meena, Tharamani C. Nagaiah","doi":"10.1016/j.ensm.2024.103965","DOIUrl":"https://doi.org/10.1016/j.ensm.2024.103965","url":null,"abstract":"Exploring metal-sulfur batteries with low cost, high safety, and capacity is the need of the hour for large storage applications. Iron (Fe) being a highly abundant and cost-effective element, provides an excellent option as an anode material which on coupling with abundant sulfur (S) in an aqueous electrolyte will be a game-changing approach. Despite a promising outlook, the stability of Fe anode due to side reactions in aqueous electrolytes and inherent corrosion tendencies limit their performance. Herein, we have explored dimethyl sulfoxide (DMSO) as an electrolyte additive in iron percholorate (Fe(ClO4)2 for aqueous Fe-S battery, which exhibited high specific capacity of 1145 mAh g-1 at 50 mA g-1 with remarkable cycling stability for 400 continuous cycles at 2.0 and 0.5 A g-1 current densities with 72% and 98% capacity retention respectively without replacing the Fe-anode. The addition of DMSO, suppressed parasitic hydrogen evolution reaction (HER) by 6.7 times and mitigated the corrosion rate of iron electrodes by 2.2 times as evidenced by the spectroscopic and gas chromatography techniques. The molecular dynamics (MD) simulations revealed that DMSO engages the water molecules through hydrogen bonding which reduced the fraction of free water molecules available for HER and corrosion of iron electrodes.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"44 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142823357","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

Electrothermally tailored lithiophilic Co/CoxOy@porous graphite composites for high-performance Li-ion/metal hybrid batteries

IF 20.4 1区材料科学

Energy Storage Materials Pub Date : 2024-12-14 DOI: 10.1016/j.ensm.2024.103961

Byungseok Seo, Daehyun Kim, Seonghyun Park, Dongjoon Shin, Kyungmin Kim, Wonjoon Choi

{"title":"Electrothermally tailored lithiophilic Co/CoxOy@porous graphite composites for high-performance Li-ion/metal hybrid batteries","authors":"Byungseok Seo, Daehyun Kim, Seonghyun Park, Dongjoon Shin, Kyungmin Kim, Wonjoon Choi","doi":"10.1016/j.ensm.2024.103961","DOIUrl":"https://doi.org/10.1016/j.ensm.2024.103961","url":null,"abstract":"Li-based batteries with high energy density and cyclic stability are essential for sustainable energy systems, whereas conventional design strategies are limited in restricted capacity and dendrite formation. Herein, we report precisely tunable Co/CoxOy@porous graphite (p-G) composites fabricated by the scalable electrothermal wave (ETW) process, enabling exceptional lithiophilic properties, increased surface area, and high porosity. The optimal heating-cooling rates adjusted by the ETW parameters could surpass the decomposition temperature of precursors yet suppress the excess thermal energy density inducing the aggregation of the resulting Co/CoxOy@p-G composite, thereby offering the rapid screening of their physicochemical characteristics. The screened Co/CoxOy@p-G composites as anodes in Li-ion/metal hybrid batteries, exhibit outstanding lithiation, Li plating at high capacities, and dendrite resistance. Compared to bare p-G anodes, they enhance Coulombic efficiency and cyclic stability by 600 % in half-cell tests, while maintaining an energy density ranging from 272.59 to 240.25 Wh∙kg-1 over 110 cycles in full-cell tests, representing a 153.14 % improvement. The outcomes will inspire ultrafast yet effective fabrication strategies for high-performance electrochemical cells.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"41 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2024-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142820973","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