Journal of energy storage最新文献

Green synthesis of SiOx/C-TiO2 with continuous conductive network towards enhancing lithium storage performance 绿色合成具有连续导电网络的 SiOx/C-TiO2 以提高锂存储性能

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2024-11-06 DOI: 10.1016/j.est.2024.114493

{"title":"Green synthesis of SiOx/C-TiO2 with continuous conductive network towards enhancing lithium storage performance","authors":"","doi":"10.1016/j.est.2024.114493","DOIUrl":"10.1016/j.est.2024.114493","url":null,"abstract":"<div><div>High-capacity SiO<sub><em>x</em></sub> anodes face significant challenges in practical applications due to their low conductivity and high expansion rate. The combination of nanoengineering and carbon capping processes has been proven to address these issues. However, most carbon capping techniques cannot ensure uniform capping and fail to form a continuous conductive phase between active materials. This work proposes a green (solvent-free) and facile method for constructing SiO<sub><em>x</em></sub>/C-TiO<sub>2</sub> (SCT@CN) nanocomposites by creating a three-dimensional carbon conductive network from gelatin-derived carbon and doping with titanium dioxide nanoparticles (TiO<sub>2</sub> NPs). Comparison of TiO<sub>2</sub> NPs with varying doping levels reveals that the synergistic effect between the conductive carbon network and TiO<sub>2</sub> NPs enhances both the structural stability of batteries during charge/discharge cycles and the efficiency of active material utilization and lithium-ion diffusion. With the increase of TiO<sub>2</sub> NPs, the capacity retention and ICE of the electrode improved, while the initial discharge capacity decreased. Notably, the SCT-2@CN electrode with 10 wt% TiO<sub>2</sub> NPs exhibits the best electrochemical performance, with an initial coulombic efficiency (ICE) of 73.2 %. After 700 cycles at a high current density of 2.0 A g<sup>−1</sup>, it maintained a capacity of 503 mAh g<sup>−1</sup>, with a capacity retention rate of 81.86 %. The optimized carbon capping process and introduction of novel elements have the potential to enhance a range of energy storage materials.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":null,"pages":null},"PeriodicalIF":8.9,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142592865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multidimensional octahedron (de) intercalation cathode for aqueous zinc-ion battery 用于锌离子水电池的多维八面体（de）插层阴极

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2024-11-06 DOI: 10.1016/j.est.2024.114440

引用次数: 0

Magnetron sputtered transition-metal-nitrides thin films as electrode materials for supercapacitors: A review 磁控溅射过渡金属氮化物薄膜作为超级电容器的电极材料：综述

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2024-11-06 DOI: 10.1016/j.est.2024.114476

{"title":"Magnetron sputtered transition-metal-nitrides thin films as electrode materials for supercapacitors: A review","authors":"","doi":"10.1016/j.est.2024.114476","DOIUrl":"10.1016/j.est.2024.114476","url":null,"abstract":"<div><div>Transition-metal-nitrides (TMNs) thin films are now in the spotlight as electrode materials for supercapacitors, which have attracted considerable attention due to excellent conductivity and remarkable physicochemical properties. There are already some informative reviews on the latest developments in TMNs-based electrodes for supercapacitors, however, which concentrated on the advances in TMNs prepared by different synthesis methods for supercapacitor applications. The magnetron sputtered TMNs thin films acted as electrodes for supercapacitors, in principle, have significant advantages over those by other synthesis methods in term of simple adjustability, environmental friendliness, and high efficiency. This review mainly presents the recent progress of magnetron sputtered TMNs thin films as electrode materials for supercapacitors. Firstly, the working principle and charge mechanism of a supercapacitor, the types, properties, and preparation methods of electrode materials in supercapacitors, and the equipment and principle of magnetron sputtering are briefly discussed. Secondly, the recent progress of magnetron sputtered TMNs films as electrodes for supercapacitors are reviewed. Finally, the current challenges and future directions of magnetron sputtered TMNs thin films for supercapacitors are also concisely proposed.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":null,"pages":null},"PeriodicalIF":8.9,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142592879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Organic/inorganic functional Janus separator for high-performance zinc anode 用于高性能锌阳极的有机/无机功能性 Janus 分离器

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2024-11-06 DOI: 10.1016/j.est.2024.114442

{"title":"Organic/inorganic functional Janus separator for high-performance zinc anode","authors":"","doi":"10.1016/j.est.2024.114442","DOIUrl":"10.1016/j.est.2024.114442","url":null,"abstract":"<div><div>Aqueous Zinc-ion batteries have been a promising candidate for large-scale energy storage system benefiting from its economic, high safety and energy density. Whereas, the issues of Zn anode that surrounding dendrite growth, side reaction and corrosion have hindered it from further practical application. To circumvent these problems, we propose an organic/inorganic functional Janus separator based on commercial glass fiber (GF) membrane, effectively inhibiting the growth of Zn dendrite and enhancing the reversibility of Zn anode. The functional layer with dense and tiny pore, can restricts ion diffusion, and the filler of Graphene oxide- Titanium dioxide (GO-TiO<sub>2</sub>) could induce the Zn<sup>2+</sup> epitaxial deposition. The Zn symmetric cell with the modified separator runs over 2000 h stably at a density of 1 mA cm<sup>−2</sup> (1800 h, 2 mA cm<sup>−2</sup>). Even at a higher density of 5 mA cm<sup>−2</sup>, it also shows an ultralong lifespan of over 600 h. When assembled into Zn//MnO<sub>2</sub> full cell, the modified separator shows higher capacity (initial capacity of 112.1 mAh g<sup>−1</sup>) and capacity retention (60.57 % after 500 cycles at 1C) than GF (97.1 mAh g<sup>−1</sup>, 48.4 %). Furthermore, the full cell with the modified separator possesses more excellent rate performance. This novel modification strategy of separator opens up more possibilities for high-performance aqueous Zn-ion batteries.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":null,"pages":null},"PeriodicalIF":8.9,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Techno-economic analysis of thermochemical-integrated pumped thermal energy storage system 热化学集成抽水蓄能系统的技术经济分析

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2024-11-06 DOI: 10.1016/j.est.2024.114394

{"title":"Techno-economic analysis of thermochemical-integrated pumped thermal energy storage system","authors":"","doi":"10.1016/j.est.2024.114394","DOIUrl":"10.1016/j.est.2024.114394","url":null,"abstract":"<div><div>Energy storage technology can address the imbalance and mismatch between the supply and demand of renewable electricity. Pumped thermal energy storage technology has great developmental potential as it is not geographically limited and offers high energy density. For this technology, storing and utilizing thermal energy is the key to improve system efficiency and reduce thermal loss of the system. Thus, in this work, a pumped thermal energy storage system with air as the working medium, coupled with methanol decomposition technology, was proposed. Low-grade thermal energy can be converted into high-grade chemical energy for storage based on the endothermic chemical reaction during the charging process. An isothermal compression strategy was employed during the discharging process to simultaneously minimize the compression power consumption and achieve energy-efficient utilization. Thermodynamic, economic, and environmental theoretical models were also established in this work, then the sensitivity analysis and multi-objective optimization were conducted. It was found that the system required the optimal air-methanol ratio, low-pressure turbine-pressure ratio, and isentropic efficiency of the adiabatic compressor to obtain the optimal thermodynamic and economic performance. The multi-objective optimization results of the system showed that the round-trip efficiency, exergy efficiency, and energy storage density of the system under optimal design working conditions were 63.70 %, 61.62 %, and 8.10 kWh·m<sup>−3</sup>, respectively, which increased by 5.80 %, 5.88 %, and 6.30 %, respectively, compared with those under the base conditions. The levelized energy cost and carbon emission per unit energy of the system were 202.14 $·MWh<sup>−1</sup> and 199.03 kg·MWh<sup>−1</sup>, respectively, which decreased by 0.61 % and 7.51 %, respectively, compared with those under the base conditions. This work can provide a theoretical basis for the technical and economic feasibilities of the pumped thermal energy storage systemand its applications.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":null,"pages":null},"PeriodicalIF":8.9,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142592872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Key technologies and upgrade strategies for eVTOL aircraft energy storage systems eVTOL 飞机储能系统的关键技术和升级策略

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2024-11-06 DOI: 10.1016/j.est.2024.114402

引用次数: 0

COF-derived hierarchical porous N,O dual-doped carbon nanosheets towards efficient aqueous Zn-ion supercapacitor with long lifespan 源于 COF 的分层多孔 N、O 双掺杂碳纳米片实现长寿命高效水基 Zn 离子超级电容器

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2024-11-06 DOI: 10.1016/j.est.2024.114411

{"title":"COF-derived hierarchical porous N,O dual-doped carbon nanosheets towards efficient aqueous Zn-ion supercapacitor with long lifespan","authors":"","doi":"10.1016/j.est.2024.114411","DOIUrl":"10.1016/j.est.2024.114411","url":null,"abstract":"<div><div>Designing and precisely constructing novel carbon-based cathodes with a high specific surface area (SSA), excellent stability, and abundant active sites is critical for achieving high-performance zinc-ion hybrid capacitors (ZHCs). Covalent organic frameworks (COFs), a class of well-defined crystalline porous polymer materials, can integrate organic building blocks into highly ordered topological structure, offering a robust platform for specific structural design and versatile functional exploitation. In this study, hierarchical porous carbon nanosheets (PCs) with high conductivity and abundant heteroatom doping were synthesized through an in situ polycondensation reaction followed by high-temperature carbonization. This unique structure facilitates the diffusion of electrolyte ions and the adsorption/desorption of Zn<sup>2+</sup> ions. As a result, the optimized PC-1000 electrode demonstrates a high specific capacity of 168.9 mAh g<sup>−1</sup> at 0.1 A g<sup>−1</sup> and remarkable stability, maintaining a high capacity retention rate of 102.5 % after more than 50,000 cycles at 10 A g<sup>−1</sup>, outperforming other PC-based materials reported in the literature. This work provides an effective way for developing carbon-based cathode materials for high-performance energy storage devices.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":null,"pages":null},"PeriodicalIF":8.9,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142592874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Organic-inorganic hybrids cathode with Hydrogen Bonding Network for highly efficient zinc-ion batteries 用于高效锌-离子电池的氢键网络有机-无机混合阴极

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2024-11-06 DOI: 10.1016/j.est.2024.114448

{"title":"Organic-inorganic hybrids cathode with Hydrogen Bonding Network for highly efficient zinc-ion batteries","authors":"","doi":"10.1016/j.est.2024.114448","DOIUrl":"10.1016/j.est.2024.114448","url":null,"abstract":"<div><div>Organic-inorganic hybridization has been explored to improve the electrochemical performance of electrodes for aqueous zinc-ion batteries. In this work, 4,4′-diamino-2,2′-bipyridine (DB) and 2,6-diaminoanthraquinone (DAAQ) intercalated vanadium pentoxide (HVO-DB and HVO-DAAQ) are prepared by pre-intercalation techniques. The incorporation of DAAQ and DB play a pivotal role in not merely enhancing the interlayer spacing of VO<sub>x</sub> slabs substantially, which consequently elevates the efficiency of ion diffusion processes, but also in reinforcing the overall structural stability through promoting the establishment of a robust hydrogen bond network. Moreover, the abundant C<img>O redox-active sites present in DAAQ actively coordinate with Zn<sup>2+</sup> during the insertion process, leading to a notable enhancement in specific capacity. HVO-DAAQ demonstrates an exceptional specific capacity of 395 mA h g<sup>−1</sup> when charged at 0.1 A g<sup>−1</sup>, coupled with remarkable cycling stability, retaining 87.8 % of its capacity even after enduring 2000 cycles at a high rate of 5 A g<sup>−1</sup>, and superior rate performance. Ex-situ characterization reveals the exceptional reversibility of Zn<sup>2+</sup> insertion, alongside the remarkable capacity of hydrogen bond networks to undergo disruption and subsequent reconstruction, showcasing a dynamic and resilient structural adaptability. Furthermore, this work provides insights into the synergistic energy storage mechanism in the organic-inorganic hybrids cathode for aqueous zinc-ion batteries.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":null,"pages":null},"PeriodicalIF":8.9,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142592876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of a novel hydroxyester phase change material and its microencapsulation for thermal energy storage 新型羟基聚酯相变材料的合成及其用于热能储存的微胶囊技术

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2024-11-06 DOI: 10.1016/j.est.2024.114424

{"title":"Synthesis of a novel hydroxyester phase change material and its microencapsulation for thermal energy storage","authors":"","doi":"10.1016/j.est.2024.114424","DOIUrl":"10.1016/j.est.2024.114424","url":null,"abstract":"<div><div>In this paper, a series of novel long-chain PCMs are designed and synthesized with the objective of achieving high latent heat and high thermal stability. The study employs fatty acids and 1, 6-hexanediol as starting materials and precisely controls the reaction conditions to synthesize novel long-chain hydroxyester PCMs with ferric chloride as catalyst under a vacuum environment. The purity of the hydroxyester is determined by Fourier transform infrared spectroscopy (FT-IR), their thermal properties are measured by differential scanning calorimeter (DSC) and thermogravimetric analyzer (TGA). The results demonstrate that the reaction process is mild and controllable, and the obtained products are of high purity. The resulting hydroxyester PCMs exhibit a significant melting process between 30 and 60 °C with low supercooling and high latent heat exceeding 210 J/g. Furthermore, the hydroxyester PCMs show good thermostability with a temperature of 5 % weight loss higher than 200 °C. In comparison to alkanes, aliphatic alcohols, and fatty acids with identical carbon chain lengths, the hydroxyesters display higher latent heat and better thermal stability due to the presence of ester and hydroxyl bifunctional groups. Considering the appropriate phase change temperature, hydroxy lauric acid 1, 6-hexanediol ester is further encapsulated with melamine formaldehyde resin as shell, resulting in spherical microcapsules with a particle size of approximately 21.7 μm. The enthalpies of the microcapsules are reaching as high as 163.7 J/g at a core-shell ratio of 3:1, which suggests that these PCMs are promising for use in energy storage.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":null,"pages":null},"PeriodicalIF":8.9,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis and prediction of battery temperature in thermal management system coupled SiC foam-composite phase change material and air 耦合碳化硅泡沫复合相变材料和空气的热管理系统中的电池温度分析与预测

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2024-11-06 DOI: 10.1016/j.est.2024.114503

{"title":"Analysis and prediction of battery temperature in thermal management system coupled SiC foam-composite phase change material and air","authors":"","doi":"10.1016/j.est.2024.114503","DOIUrl":"10.1016/j.est.2024.114503","url":null,"abstract":"<div><div>Lithium-ion batteries crucially rely on an effective battery thermal management system (BTMS) to sustain their temperatures within an optimal range, thereby maximizing operational efficiency. Incorporating bio-based composite phase change material (CPCM) into BTMS enhances efficiency and sustainability. This study commences by blending lauric acid and myristic acid in a 7: 3 mass ratio to synthesize a bio-based CPCM, following which the thermophysical properties of this CPCM are tested. Subsequently, the CPCM is integrated into a SiC foam and coupled with air to develop a novel BTMS. Then the effects of air velocity and initial temperature on the temperature of the battery pack are analyzed. Finally, the RIME-Convolutional Neural Network (CNN)- Self-Attention (SA)- Gated Recurrent Unit (GRU) model is established to predict the temperature of the battery in this BTMS. The results indicate that the latent heat of the CPCM is 97.98 J/g, melting at 35 °C upon heating. The incorporation of SiC foam-CPCM effectively reduces battery temperatures. When the air velocity is set at 3 m/s, the battery temperature remains below 40 °C during a discharge rate of 2C. Notably, the CPCM melts at higher initial temperatures, effectively mitigating the temperature rise in the battery pack. The RIME-CNN-SA-GRU model exhibits remarkable accuracy, with a maximum prediction error of 0.56 °C and a RMSE of 0.23, precisely capturing the trend of a sharp temperature rise at the end of discharge. This study presents an efficient solution for lithium-ion battery thermal management and temperature prediction.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":null,"pages":null},"PeriodicalIF":8.9,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142592868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0