Energy Storage Materials最新文献_第9页

Achieving complete solid-solution reaction in layered cathodes with reversible oxygen redox for high-stable sodium-ion batteries 在具有可逆氧氧化还原作用的层状阴极中实现完全固溶反应，以制造高稳定性钠离子电池

IF 18.9 1区材料科学

Energy Storage Materials Pub Date : 2024-11-09 DOI: 10.1016/j.ensm.2024.103895

Xi Zhou , Tong Liu , Chen Cheng , Xiao Xia , Yihao Shen , Lei Wang , Yawen Xie , Bin Wang , Ying Zou , Duanyun Cao , Yuefeng Su , Liang Zhang

{"title":"Achieving complete solid-solution reaction in layered cathodes with reversible oxygen redox for high-stable sodium-ion batteries","authors":"Xi Zhou , Tong Liu , Chen Cheng , Xiao Xia , Yihao Shen , Lei Wang , Yawen Xie , Bin Wang , Ying Zou , Duanyun Cao , Yuefeng Su , Liang Zhang","doi":"10.1016/j.ensm.2024.103895","DOIUrl":"10.1016/j.ensm.2024.103895","url":null,"abstract":"<div><div>P2-type layered Mn-based oxides are promising cathode materials for sodium-ion batteries (SIBs), but it is still challenging to achieve both high capacity and stability because of complex phase transitions and irreversible oxygen release at high voltage. To address these challenges, an optimal P2-type Na<sub>0.67</sub>Mn<sub>0.8</sub>Cu<sub>0.15</sub>Ti<sub>0.05</sub>O<sub>2</sub> (NMCT) cathode with a complete solid-solution reaction and reversible oxygen redox reaction over a wide voltage range was developed. The introduction of the Na–O–Ti configuration leads to fewer delocalized electrons on oxygen and thus enhances oxygen redox activity, while the high energetic overlap between O 2p and Cu 3d states and the increased Mn–O hybridization strengthen the rigidity of oxygen framework to achieve reversible and stable oxygen redox reaction. In addition, the reinforced TM–O interaction, combined with the ameliorated Mn<sup>3+</sup> Jahn-Teller distortion and disrupted Na<sup>+</sup>/vacancy ordering, synergistically eliminate the undesired P2–OP4 phase transition and lead to a complete solid-solution reaction, which greatly facilitates Na<sup>+</sup> transport kinetics and stabilizes structural integrity. As a consequence, improved rate performance and cycling stability are achieved for NMCT. Our present study provides a promising avenue for simultaneously utilizing the reversible oxygen redox activity and maintaining the structural integrity to accomplish the capacity-stability trade-off of Mn-based oxide cathodes for constructing practical SIBs.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"74 ","pages":"Article 103895"},"PeriodicalIF":18.9,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142597947","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

Ultrafast lattice engineering for high energy density and high-rate sodium-ion layered oxide cathodes 用于高能量密度和高速率钠离子层状氧化物阴极的超快晶格工程技术

IF 18.9 1区材料科学

Energy Storage Materials Pub Date : 2024-11-08 DOI: 10.1016/j.ensm.2024.103868

Bizhu Zheng , Hui Qian , Gangya Cheng , Chen Yuan , Yong Cheng , Ming-Sheng Wang , Xiangsi Liu , Yuxuan Xiang

{"title":"Ultrafast lattice engineering for high energy density and high-rate sodium-ion layered oxide cathodes","authors":"Bizhu Zheng , Hui Qian , Gangya Cheng , Chen Yuan , Yong Cheng , Ming-Sheng Wang , Xiangsi Liu , Yuxuan Xiang","doi":"10.1016/j.ensm.2024.103868","DOIUrl":"10.1016/j.ensm.2024.103868","url":null,"abstract":"<div><div>Sodium-ion batteries attract significant interest for large-scale energy storage owing to abundant sodium reserves, while challenges remain in the high synthesis energy consumption, long synthesis period, and poor electrochemical performance of sodium-ion layered oxide materials. This study presents a general high-temperature thermal shock (HTS) strategy to synthesize and optimize sodium-ion layered oxides. The rapid ramping, sintering, and cooling processes minimize volatile sodium loss during HTS, facilitating the improvement of phase purity and effectively optimizing the microstructure of materials in a non-equilibrium state. As a proof of concept, Mn-based Na<sub>0.67</sub>MnO<sub>2</sub> treated with HTS (NMO<img>HTS) suppresses Mn ion vacancy within transition material layers, thereby increasing the redox centers and lowering the Mn <em>3d</em> orbital energy level. Besides, the formation of transition metal layer stacking faults mitigates the structural transformation and Na<sup>+</sup>-vacancies ordering arrangement during cycling. Consequently, the energy density of the NMO<img>HTS increases by 21.5 % to 559 Wh kg<sup>-1</sup>, with an outstanding rate capability of 108 mAh g<sup>-1</sup> at 10C and an impressive capacity retention of 93.7 % after 300 cycles at 1C. In addition, we demonstrate the universality of HTS in synthesizing various other sodium-ion layered oxides, including nickel-based and iron-based cathodes, as well as in activating degraded materials.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"74 ","pages":"Article 103868"},"PeriodicalIF":18.9,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142597870","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

Quantifying the effect of degradation modes on Li-ion battery thermal instability and safety 量化退化模式对锂离子电池热不稳定性和安全性的影响

IF 18.9 1区材料科学

Energy Storage Materials Pub Date : 2024-11-08 DOI: 10.1016/j.ensm.2024.103878

Venkatesh Kabra , Avijit Karmakar , Bairav S. Vishnugopi, Partha P. Mukherjee

{"title":"Quantifying the effect of degradation modes on Li-ion battery thermal instability and safety","authors":"Venkatesh Kabra , Avijit Karmakar , Bairav S. Vishnugopi, Partha P. Mukherjee","doi":"10.1016/j.ensm.2024.103878","DOIUrl":"10.1016/j.ensm.2024.103878","url":null,"abstract":"<div><div>Understanding the thermal stability of lithium-ion (Li-ion) cells is critical to ensuring optimal safety and reliability for various applications such as portable electronics and electric vehicles. In this work, we demonstrate a combined modeling and experimental framework to interrogate and quantify the role of different degradation modes on the thermal stability and safety of Li-ion cells. A physics-based Li-ion cell aging model is developed to describe the underpinning role of degradation mechanisms such as Li plating, solid electrolyte interphase growth, and the loss of electrode active material on the resulting capacity fade during cycling. By incorporating mechanistic degradation descriptors from the aging model, we develop a degradation-aware cell-level thermal stability framework that captures key safety characteristics such as thermal runaway (TR) onset temperature, self-heating rate, and peak TR temperature for different cycling conditions. Additionally, we perform electrochemical and accelerating rate calorimetry (ARC) experiments to evaluate the thermo-kinetic parameters associated with the various exothermic reactions during TR of pristine and aged Li-ion cells. Through a synergistic integration of thermo-electrochemical characteristics from the ARC experiments and degradation insights from the cell aging model, the proposed aging-coupled safety framework provides a baseline to quantify the thermal stability of Li-ion cells subject to a wide range of operating conditions and degradation scenarios.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"74 ","pages":"Article 103878"},"PeriodicalIF":18.9,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598005","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

Biomimetic surface design enables a resilient solid electrolyte interphase for high-performance anodes 仿生表面设计实现了高性能阳极的弹性固体电解质间相

IF 18.9 1区材料科学

Energy Storage Materials Pub Date : 2024-11-07 DOI: 10.1016/j.ensm.2024.103871

Yue Zhai , Zhen Wei , Jiaxing He , Ziyun Zhao , Qiang Li , Yiran Jia , Qing He , Shichao Wu , Quan-Hong Yang

{"title":"Biomimetic surface design enables a resilient solid electrolyte interphase for high-performance anodes","authors":"Yue Zhai , Zhen Wei , Jiaxing He , Ziyun Zhao , Qiang Li , Yiran Jia , Qing He , Shichao Wu , Quan-Hong Yang","doi":"10.1016/j.ensm.2024.103871","DOIUrl":"10.1016/j.ensm.2024.103871","url":null,"abstract":"<div><div>Surface coating presents an effective methodology for mitigating the detrimental effects of large volume changes inherent to high-capacity anode materials (e.g. Si, SiO<sub>x</sub>). However, designs often prioritize the protection of internal active particles, inadvertently neglecting the intricate interplay between the coating layer and the external electrolyte which exhibits profound influences on the solid electrolyte interphases (SEIs). Inspired by the extracellular polymeric substance (EPS) protecting biological cells (e.g. yeast) from predation and chemical damages, we prepare a conducting polymer-based EPS system (CP-EPS) on a surface bilayer comprising soft carbon membranes and compact graphene walls, constructing the biomimetic cellular structure. The CP-EPS chemically interacts with electrolyte catalyzing the symbiosis of integrated LiF-enriched SEIs and physically provide sufficient resilience for SEIs. This resilient SEIs offer excellent reaction kinetics and roughness which protects the structural integrity of the particle and itself from pulverization and excessive SEI thickening. The prepared SiO<sub>x</sub> anode delivers a superior average coulombic efficiency of 99.4 % over 200 cycles at 0.5C and a high reversible capacity of 730 mAh g<sup>-1</sup> after 300 cycles at 2C.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"74 ","pages":"Article 103871"},"PeriodicalIF":18.9,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598006","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

Robust interface for O3-type layered cathode towards stable ether-based sodium-ion full batteries 实现稳定的醚基钠离子全电池的 O3 型层状阴极的稳健界面

IF 18.9 1区材料科学

Energy Storage Materials Pub Date : 2024-11-07 DOI: 10.1016/j.ensm.2024.103894

Aoyan Zeng , Yongju He , Mulan Qin , Chao Hu , Fei Huang , Jilong Qiu , Shuquan Liang , Yanyan Sun , Guozhao Fang

{"title":"Robust interface for O3-type layered cathode towards stable ether-based sodium-ion full batteries","authors":"Aoyan Zeng , Yongju He , Mulan Qin , Chao Hu , Fei Huang , Jilong Qiu , Shuquan Liang , Yanyan Sun , Guozhao Fang","doi":"10.1016/j.ensm.2024.103894","DOIUrl":"10.1016/j.ensm.2024.103894","url":null,"abstract":"<div><div>Developing a robust cathode-electrolyte interface (CEI) is crucial for stable layered cathode in sodium-ion batteries (SIBs). A CEI based on ester electrolytes often exhibit poor stability and robustness, which cannot address the issues of structural collapse and material dissolution in layered cathodes. However, there are few reports on constructing a stable CEI for layered cathode based on ether electrolytes. Here we develop a robust CEI for O3-type cathode via DME solvent, which enables a long-term stability of full SIBs. The results indicate that unique decomposition process of DME yields favorable organic component (e.g. RCH<sub>2</sub>ONa) and high content of inorganic components (e.g. NaF and Na<sub>2</sub>CO<sub>3</sub>) in the CEI, which is quite different from ester electrolyte, improving Na<sup>+</sup> diffusion kinetic and interfacial stability. Notably, the O3-NaNi<sub>0.5</sub>Mn<sub>0.5</sub>O<sub>2</sub>||Na cell with the designed electrolyte demonstrates outstanding stability up to 500 cycles. Furthermore, the full cell exhibits remarkable cycling performance with a capacity retention of 85 % over 200 cycles. This work provides an opportunity for stable operation of layered cathode materials via inexpensive ether electrolytes.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"74 ","pages":"Article 103894"},"PeriodicalIF":18.9,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142589212","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

Optimizing interface chemistry with novel covalent molecule for highly sustainable and kinetics-enhanced sodium metal batteries 利用新型共价分子优化界面化学，实现高度可持续和动力学增强型金属钠电池

IF 18.9 1区材料科学

Energy Storage Materials Pub Date : 2024-11-07 DOI: 10.1016/j.ensm.2024.103898

Xiaolong Cheng , Dongjun Li , Yu Yao , Fanfan Liu , Biao Ma , Pengcheng Shi , Yu Shao , Fangzhi Huang , Yingjie Sun , Yu Jiang , Shikuo Li

{"title":"Optimizing interface chemistry with novel covalent molecule for highly sustainable and kinetics-enhanced sodium metal batteries","authors":"Xiaolong Cheng , Dongjun Li , Yu Yao , Fanfan Liu , Biao Ma , Pengcheng Shi , Yu Shao , Fangzhi Huang , Yingjie Sun , Yu Jiang , Shikuo Li","doi":"10.1016/j.ensm.2024.103898","DOIUrl":"10.1016/j.ensm.2024.103898","url":null,"abstract":"<div><div>Metallic sodium has attracted increasing attention as an ideal anode material for next-generation high energy density and low-cost secondary batteries. However, it is highly desired yet remains challenging to improve their cycling stability and safety due to unstable solid electrolyte interphase and dendrite growth. Herein, a hybrid interface layer composed of Na<sub>2</sub>Se and Na<sub>3</sub>P is constructed on the surface of Na (Na@NPS) via in situ spontaneous reaction. The hybrid interface layer with merits of high sodiophilicity and high Na-ion conductivity can effectively induce homogeneous Na-ion flux distribution, accelerate the reaction kinetics and suppress decomposition of electrolyte components. Benefitting from the above advantages, the Na@NPS symmetric cell delivers a long cycle life (1000 h at 1 mA cm<sup>–2</sup> and 1 mAh cm<sup>–2</sup>). Furthermore, the full cell coupling with Na<sub>3</sub>V<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>-based cathode provides an exceptionally long lifespan (1500 cycles) at 20 C with a capacity retention of 98.2 % and high energy density (226 Wh kg<sup>–1</sup>). Therefore, the enhanced electrochemical performance illustrates the feasibility of the covalent molecule derived hybrid multifunctional interfaces in solving the irregular deposition of Na-ion and expediting reaction kinetics in Na metal batteries.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"74 ","pages":"Article 103898"},"PeriodicalIF":18.9,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142589208","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

Engineering in situ heterometallic layer for robust Zn electrochemistry in extreme Zn(BF4)2 electrolyte environment 在极端的 Zn(BF4)2 电解质环境中设计原位杂金属层以实现稳健的锌电化学性能

IF 18.9 1区材料科学

Energy Storage Materials Pub Date : 2024-11-07 DOI: 10.1016/j.ensm.2024.103896

Mingcong Tang , Qun Liu , Xiaohong Zou , Zhenlu Yu , Kouer Zhang , Biao Zhang , Liang An

{"title":"Engineering in situ heterometallic layer for robust Zn electrochemistry in extreme Zn(BF4)2 electrolyte environment","authors":"Mingcong Tang , Qun Liu , Xiaohong Zou , Zhenlu Yu , Kouer Zhang , Biao Zhang , Liang An","doi":"10.1016/j.ensm.2024.103896","DOIUrl":"10.1016/j.ensm.2024.103896","url":null,"abstract":"<div><div>The performance of zinc metal batteries is critically affected by the electrolyte environment originating from various zinc salt formulations. Zn(BF<sub>4</sub>)<sub>2</sub>, in particular, offers a notable cost advantage and its fluoride-containing groups facilitate the formation of a beneficial ZnF<sub>2</sub> interfacial layer, thereby making it a promising candidate for application. Nonetheless, the strong acidity of the Zn(BF<sub>4</sub>)<sub>2</sub>-based electrolyte exacerbates the dendrite formation and promotes parasitic reactions, leading to rapid battery failure. Herein, M(BF<sub>4</sub>)<sub>n</sub> (M: Cu, Sn, In) salts were adopted as additives in Zn(BF<sub>4</sub>)<sub>2</sub> electrolyte to in situ construct the heterometallic layers. Through comparison, the In(BF<sub>4</sub>)<sub>3</sub>-derived ZnIn interface demonstrates superior corrosion-resistance capability and the strongest zinc affinity, protecting the anode from acidic erosion and accelerating the Zn<sup>2+</sup> transportation kinetics. The symmetric cell with the optimized electrolyte exhibits a long lifespan of 2500 cycles while the full cell involving the polyaniline cathode also presents a high capacity retention of 81.3 % after 1500 cycles, outperforming the cell with the original Zn(BF<sub>4</sub>)<sub>2</sub> electrolyte. The strategy of generating an interface layer within the battery through electrolyte additives can be readily applied to other metal battery technologies.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"74 ","pages":"Article 103896"},"PeriodicalIF":18.9,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142589222","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

High energy conversion efficiency and cycle durability of solar-powered self-sustaining light-assisted rechargeable zinc–air batteries system 太阳能自持光辅助锌-空气充电电池系统的高能量转换效率和循环耐久性

IF 18.9 1区材料科学

Energy Storage Materials Pub Date : 2024-11-07 DOI: 10.1016/j.ensm.2024.103897

Ziyu Wang , Rui Liu , Junjie Wang , Baoling Wang , Mingshan Zhu , Sujuan Hu

{"title":"High energy conversion efficiency and cycle durability of solar-powered self-sustaining light-assisted rechargeable zinc–air batteries system","authors":"Ziyu Wang , Rui Liu , Junjie Wang , Baoling Wang , Mingshan Zhu , Sujuan Hu","doi":"10.1016/j.ensm.2024.103897","DOIUrl":"10.1016/j.ensm.2024.103897","url":null,"abstract":"<div><div>The issue of energy supply in outdoor and remote areas has become a significant challenge. Solar-powered self-sustaining rechargeable zinc-air batteries (RZABs) offer a viable energy solution for off-grid regions. However, there has been no specific study on the technical compatibility and adaptability of the solar power generation system and RZABs system, as well as the efficiency of energy conversion and storage in such solar-powered RZABs systems. To address these challenges, this study developed a solar-powered self-sustaining photo-assisted RZABs system based on a photo-responsive polyterthiophene (pTTh) cathode. This system employs pTTh with photo-responsive properties as the cathode catalyst for RZABs, which not only significantly reduces the overpotential of the cathode but also enhances the performance of the RZABs and the overall energy conversion efficiency (reaching 16.2 %). In practical applications, the system exhibits excellent stability, operating continuously within a wide temperature range of -15 to 40 °C, and demonstrating a stable cycling operation capability of up to 33 days. It provides reliable, low-cost power support for electronic devices such as mobile phones, flashlights, GPS units, and small pollutant detection systems, greatly improving the practicality of these devices in off-grid areas.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"74 ","pages":"Article 103897"},"PeriodicalIF":18.9,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142589210","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

Central metal coordination environment optimization enhances Na diffusion and structural stability in Prussian blue analogues 中心金属配位环境优化可增强普鲁士蓝类似物中 Na 的扩散和结构稳定性

IF 18.9 1区材料科学

Energy Storage Materials Pub Date : 2024-11-07 DOI: 10.1016/j.ensm.2024.103890

Pengfei Dai , Jiangfeng Huang , Xin Cao , Jianwei Zhao , Liang Xue , Yawen Tang , Ping Wu

{"title":"Central metal coordination environment optimization enhances Na diffusion and structural stability in Prussian blue analogues","authors":"Pengfei Dai , Jiangfeng Huang , Xin Cao , Jianwei Zhao , Liang Xue , Yawen Tang , Ping Wu","doi":"10.1016/j.ensm.2024.103890","DOIUrl":"10.1016/j.ensm.2024.103890","url":null,"abstract":"<div><div>Prussian blue analogues, particularly metal hexacyanoferrates with double octahedral coordination (DOC) structures, hold great promise as cathode materials for sodium-ion batteries. However, their practical application is hindered by limited structural stability and restricted ionic diffusion channels inherent to the DOC structure. In this study, we have successfully integrated a mixed tetrahedral and octahedral coordination (TOC) structure with the DOC structure by a dual polymerization and high-entropy strategy, thereby optimizing the central metal coordination environment in hexacyanoferrate cathodes. It leverages the TOC structure's superiorities in structural stability and ionic diffusion, resulting in a hexacyanoferrate-based cathode that exhibits exceptional performance, with a capacity retention of 81.6% after 1000 cycles at 0.5 A g-1 and high rate capabilities of 96.7 and 89.1 mAh g-1 at 0.5 and 1 A g-1, respectively. These findings not only underscore the potential of the TOC design for prussian blue cathodes but also pave the way for the development of high-performance, durable sodium-ion battery systems.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"74 ","pages":"Article 103890"},"PeriodicalIF":18.9,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142594577","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

A gated highly variable pseudocapacitor based on redox-window control (G-CAPode) 基于氧化还原窗口控制的门控高可变伪电容器（G-CAPode）

IF 18.9 1区材料科学

Energy Storage Materials Pub Date : 2024-11-07 DOI: 10.1016/j.ensm.2024.103872

Ahmed Bahrawy , Przemyslaw Galek , Christin Gellrich , Nick Niese , Julia Grothe , Stefan Kaskel

{"title":"A gated highly variable pseudocapacitor based on redox-window control (G-CAPode)","authors":"Ahmed Bahrawy , Przemyslaw Galek , Christin Gellrich , Nick Niese , Julia Grothe , Stefan Kaskel","doi":"10.1016/j.ensm.2024.103872","DOIUrl":"10.1016/j.ensm.2024.103872","url":null,"abstract":"<div><div>Iontronic architectures operate via multiple ions or redox processes mimicking neural systems capable to operate with complex ions and biological transmitters with high energy efficiency. Recently, ultracapacitors have emerged as novel iontronic switchable devices with a high on/off ratio. We propose a novel iontronic device offering flexible control of the current output of a switchable electrochemical capacitor diode (CAPode) by introducing an additional “gate” electrode. This device mimics field-effect transistor (FET) semiconductors in controlling current output and recovers energy consumed during the forward charging, marking a significant breakthrough. A recently developed unidirectional CAPode system (Ni<sub>3</sub>Bi<sub>2</sub>S<sub>2</sub>@Ni I 1 mol L<sup>-1</sup> KOH I AC@Ni) serves as the “working” capacitor (W-Cap) in the novel architecture. The proposed G-CAPode (gate-controlled CAPode) features a third voltage-controlled connection between the “gate” and the counter electrode of the W-Cap. By varying this third voltage channel the electrodes of W-Cap are shifted in potential toward negative or positive potential windows. Hence, by external voltage control the rectification ratios and blocking efficacy can be tuned which is essential for fully controlling the output signal in logic gates. A new circuit monitors the current and potential distribution of the NOT gate: The G-CAPode system exhibits transistor-like characteristics with a −1.2 V bias. This investigation highlights the versatility of the G-CAPode system across applications where transistor-like behavior and accurate current regulation are beneficial, promising advancements in ionologic devices, sensors, and energy storage systems.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"74 ","pages":"Article 103872"},"PeriodicalIF":18.9,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142597868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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