Energy technology最新文献_第9页

Exploring the Impact of Lanthanum on Sodium Manganese Oxide Cathodes: Insight into Electrochemical Performance 探索镧对氧化锰钠阴极的影响：洞察电化学性能

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-07-24 DOI: 10.1002/ente.202400824

Rawdah Whba, Sebahat Altundag, Mustafa Göktan Aydin, Burcu Kalyoncuoglu, Metin Ozgul, Tolga Depci, Serdar Altin, Sevda Sahinbay

{"title":"Exploring the Impact of Lanthanum on Sodium Manganese Oxide Cathodes: Insight into Electrochemical Performance","authors":"Rawdah Whba, Sebahat Altundag, Mustafa Göktan Aydin, Burcu Kalyoncuoglu, Metin Ozgul, Tolga Depci, Serdar Altin, Sevda Sahinbay","doi":"10.1002/ente.202400824","DOIUrl":"10.1002/ente.202400824","url":null,"abstract":"This investigation focuses on nominally La-doped Na0.67MnO2, exploring its structural, electrochemical, and battery characteristics for Na-ion batteries. X-ray diffraction analysis reveals formation of composite materials containing three distinct phases: P2-Na0.67MnO2, NaMn8O16, and LaMnO3. The bond structures of the powders undergo scrutiny through Fourier-transform infrared and Raman analyses, revealing dependencies on the NaO, MnO, and LaO structures. X-ray photoelectron spectroscopy and energy-dispersive X-ray dot mapping analyses show that the La ions are unevenly dispersed within the samples, exhibiting a valence state of 3+. Half-cell tests unveil similarities in redox peaks between the cyclic voltammetry analysis of La-doped samples and P2-type Na0.67MnO2, with a reduction in peak intensities as La content increases. Electrochemical impedance spectroscopy model analysis indicates direct influences of La content on the half-cell's resistive elements values. The synergistic effect of composite material with multiple phases yields promising battery performances for both half and full cells. The highest initial capacity value of 208.7 mAh g−1, with a 57% capacity fade, among others, is observed, and it diminishes with increasing La content. Full cells are constructed using an electrochemically presodiated hard carbon anode, yielding a promising capacity value of 184.5 mAh g−1 for sodium-ion battery studies.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"12 10","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141777707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

The Possible Mechanism of Improving the Performance of Lead-Acid Batteries by Using Aluminum Ions to Influence the Gel Structure 利用铝离子影响凝胶结构提高铅酸蓄电池性能的可能机制

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-07-23 DOI: 10.1002/ente.202400570

Yali Yang, Jing Cao, Yuwen Yu, Yufang Chen, Zhongyun Ma, Sha Zhou, Xiaoyu Ma, Yi Liu

引用次数: 0

Porous Thermoelectric Materials for Energy Conversion by Thermoelectrocatalysis 利用热电催化进行能量转换的多孔热电材料

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-07-23 DOI: 10.1002/ente.202400973

Jiaqi Wu, Kan Chen, Michael J. Reece, Zhaorong Huang

引用次数: 0

Development of a Spherical High‐Pressure Tank for Hydrogen Storage in Mobile and Stationary Applications 开发球形高压罐，用于在移动和固定应用中储存氢气

IF 3.8 4区工程技术

Energy technology Pub Date : 2024-07-23 DOI: 10.1002/ente.202300942

Lucas Ost, Holger Seidlitz, Lars Ulke‐Winter, Felix Kuke

引用次数: 0

Three-Dimensional Porous Spongy Ti3C2Tx MXene/Polyvinyl Alcohol/Agar Gel Electrolyte with High Ionic Conductivity Enables Highly Reversible Zinc-Ion Batteries 具有高离子传导性的三维多孔海绵状 Ti3C2Tx MXene/Polyvinyl Alcohol/Agar 凝胶电解质可实现高度可逆的锌-离子电池

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-07-23 DOI: 10.1002/ente.202400772

Chun Hu, Wenxin Zhang, Jinmei Zhang, Xiaojing Zhao, Chunyan Xu, Liying Yang, Ningyi Jiang, Shougen Yin

{"title":"Three-Dimensional Porous Spongy Ti3C2Tx MXene/Polyvinyl Alcohol/Agar Gel Electrolyte with High Ionic Conductivity Enables Highly Reversible Zinc-Ion Batteries","authors":"Chun Hu, Wenxin Zhang, Jinmei Zhang, Xiaojing Zhao, Chunyan Xu, Liying Yang, Ningyi Jiang, Shougen Yin","doi":"10.1002/ente.202400772","DOIUrl":"10.1002/ente.202400772","url":null,"abstract":"Gel electrolyte is one of the key components of flexible energy storage devices. The construction of a three-dimensional (3D) porous gel electrolyte with high ionic conductivity is a very effective strategy to improve the performance of zinc-ion batteries (ZIBs). Herein, porous polyvinyl alcohol-Agar-sodium dodecyl sulfate-MXene-dimethyl sulfoxide (DMSO) (denoted as PVA-Agar-SDS-MXene-DMSO (PASMD)) gel electrolyte with double network is prepared through one-pot method by adding two-dimensional (2D) MXene to improve its ionic conductivity and DMSO to increase its low-temperature resistance. Meanwhile, the as-prepared PASMD gel electrolyte with a high ionic conductivity of 50.63 mS cm−1 realizes the gradient induction and redistribution of Zn2+, which drives oriented Zn (002) plane deposition of Zn2+ and then achieves uniform Zn deposition and dendrite-free anode. The specific capacity of the assembled flexible Zn//PASMD//β-MnO2 battery can reach 205 mAh g−1 at 0.2 A g−1. It also exhibits good performance both at room temperature and −20 °C with stable cyclic stability for more than 1000 h. After 1000 cycles at 1 A g−1, the assembled flexible battery stabilizes at 67 mAh g−1. This work provides an alternative pathway for the development of high-performance gel electrolytes with low-temperature resistance and high-ionic conductivity for flexible ZIBs.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"12 10","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141777710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Revealing the Structural, Electronic, Optical, and Thermoelectric Aspects of the Gold-Based Double Perovskites X2Au+Au3+Br6 (X = Cs, Rb) Using a First-Principles Approach 利用第一性原理揭示金基双包晶 X2Au+Au3+Br6 (X = Cs, Rb) 的结构、电子、光学和热电特性

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-07-22 DOI: 10.1002/ente.202400964

Shanawer Niaz, Syed Zuhair Abbas Shah, Muhammad Aslam Khan, Amna Parveen, Safdar Hussain, Aiman Liaqat, Abdelmohsen A. Nassani

{"title":"Revealing the Structural, Electronic, Optical, and Thermoelectric Aspects of the Gold-Based Double Perovskites X2Au+Au3+Br6 (X = Cs, Rb) Using a First-Principles Approach","authors":"Shanawer Niaz, Syed Zuhair Abbas Shah, Muhammad Aslam Khan, Amna Parveen, Safdar Hussain, Aiman Liaqat, Abdelmohsen A. Nassani","doi":"10.1002/ente.202400964","DOIUrl":"10.1002/ente.202400964","url":null,"abstract":"Lead-free double perovskites are now assumed to be suitable candidates for green energy harvesting in particular as active materials for solar cells and thermoelectric generators, which can meet future generation energy needs. Therefore, we explore the Au-based halide double perovskites X2Au+Au3+Br6 (X = Cs, Rb) from the first principles approach. Density functional theory (DFT) is utilized to explore the electronic structure with DFT code Quantum ESPRESSO. The mechanical, thermodynamic, and structural stability is ensured from Burn-Haun criterion, formation energies, and Goldschmidt factors, respectively. The examined materials have stable structures with direct band gaps i.e. 1.54 and 1.72 eV. The existence of band gaps in the visible region motivates us to explore the optical properties, which give fascinating outcomes. The absorption coefficients and optical conductivity peaks are found to be significant in the visible region i.e., ≈104 cm−1 and ≈1015 s−1, respectively. Additionally, the thermoelectric properties are also investigated using Boltzmann transport theory. There are several good gestures for the usage in the thermoelectric generators since the values of Seebeck coefficients (446.5, and 225.2 μV K−1), power factors (1.75 × 1011 W mk−2 s, and 1.24 × 1011 W mk−2 s), and figure of merits (0.92 and 0.73) are noteworthy for Cs2AuAuBr6 and Rb2AuAuBr6, respectively, at room temperature T = 300 K.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"12 10","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141777712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Carbon Wrapped Nanosilicon with Reserved Void for High Capacitance and Stable Lithium-Ion Battery Anode 预留空隙的碳包纳米硅可实现高电容和稳定的锂离子电池负极

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-07-20 DOI: 10.1002/ente.202401192

Qiao Wu, Xiaolai Luo, Lisha Zhou, Zhihong Yang, Luhua Lu

引用次数: 0

The Role of Self-Organized TiO2 Nanotube Thickness on the Electrochemical Performance of Anodes for Li-Ion Microbatteriess 自组织 TiO2 纳米管厚度对锂离子微型电池阳极电化学性能的影响

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-07-20 DOI: 10.1002/ente.202400528

Clement Ghigo, Hanna Sopha, Marcela Sepúlveda, Ludek Hromadko, Jhonatan Rodriguez-Pereira, Florence Vacandio, Killian Dénoue, Jan M. Macak, Thierry Djenizian

{"title":"The Role of Self-Organized TiO2 Nanotube Thickness on the Electrochemical Performance of Anodes for Li-Ion Microbatteriess","authors":"Clement Ghigo, Hanna Sopha, Marcela Sepúlveda, Ludek Hromadko, Jhonatan Rodriguez-Pereira, Florence Vacandio, Killian Dénoue, Jan M. Macak, Thierry Djenizian","doi":"10.1002/ente.202400528","DOIUrl":"10.1002/ente.202400528","url":null,"abstract":"Self-organized TiO2 nanotube (TNT) layers with different thicknesses are prepared by anodization of Ti foils and then characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and electrochemical techniques to be used as potential anodes for Li-ion microbatteries. Electrochemical behaviors between 1 and 190 μm thick electrodes, which are the thickest ever studied layers as electrode, have been evaluated by cyclic voltammetry (CV) and chronopotentiometry at various kinetics. The highest areal capacity is obtained for TNT layers of 190 μm providing an initial discharge capacity of ≈5.3 mAh cm−2 at C/10. At faster kinetics, the ≈80 μm thick TNT layer reveals the best electrochemical behavior by offering 256 μAh cm−2 at 5 C and a good stability for 200 cycles at C/5. The influence of the increasing thickness on the electrochemical performance at fast rates can be attributed to the uncomplete reaction of TNT layers with Li ions and the enhancement of the formation of a solid electrolyte interphase. It is also shown that a very thick electrode is not able to sustain long and very fast cycles due to the mechanical deformations occurring during the successive insertion/extraction of Li ions.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"12 10","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141746444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Unraveling the Surface-Diffusion Charge Contribution Studies of Zeolitic-Imidazolate-Frameworks-Based Core–Shell Structure for High-Performance Hybrid Supercapacitors 揭示用于高性能混合超级电容器的沸石-咪唑啉框架核壳结构的表面扩散电荷贡献研究

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-07-20 DOI: 10.1002/ente.202400722

Mansi, Prashant Dubey, Vishal Shrivastav, Marcin Hołdyński, Shashank Sundriyal, Umesh K. Tiwari, Akash Deep

{"title":"Unraveling the Surface-Diffusion Charge Contribution Studies of Zeolitic-Imidazolate-Frameworks-Based Core–Shell Structure for High-Performance Hybrid Supercapacitors","authors":"Mansi, Prashant Dubey, Vishal Shrivastav, Marcin Hołdyński, Shashank Sundriyal, Umesh K. Tiwari, Akash Deep","doi":"10.1002/ente.202400722","DOIUrl":"10.1002/ente.202400722","url":null,"abstract":"In this work, zeolitic imidazolate frameworks (ZIF-8@ZIF-67)-based core–shell structure as a supercapacitor electrode is synthesized. The core–shell structure is designed with a ZIF-8 core, onto which a ZIF-67 shell is grown. This unique architecture aims to expedite the diffusion of electrolyte ions, facilitate inner–outer metal ion electron transfer, and consequently enhance electrochemical performance. When used as an active electrode material, the material delivers 263.43 F g−1 of capacitance at 0.5 A g−1 of discharge rate. The core–shell structure exhibits 68% of surface contribution toward the total capacitance. At the scan rate of 50 mV s−1, the sample almost exhibits equal contribution of diffusion and surface charge contribution. Further an asymmetric supercapacitor (ASC) device is assembled, featuring a ZIF-8@ZIF-67 core–shell metal-organic framework (MOF) as a positive electrode and waste-tissue-paper-derived activated carbon as negative electrode using 1 m H2SO4 aqueous electrolyte. The ASC device delivers an energy density of 38.4 Wh kg−1 at the power density of 0.8 kW kg−1, along with long cycle life of 95.2% after an extensive 10 000 cycles. In this work, the significance of the ZIF-based core–shell structure in advancing supercapacitor technology, which further can be extended to multiple core–shell structure and other MOF combination, is highlighted.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"12 10","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141820028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Nanofluid‐Cooled Microchannel‐Integrated Metal Foam/Phase Change Material Composite‐Based Li‐Ion Battery Pack Design 基于纳米流体冷却微通道集成金属泡沫/相变材料复合材料的锂离子电池组设计

IF 3.8 4区工程技术

Energy technology Pub Date : 2024-07-20 DOI: 10.1002/ente.202400689

Kartik Kumar, Jahar Sarkar, Swasti Sundar Mondal

{"title":"Nanofluid‐Cooled Microchannel‐Integrated Metal Foam/Phase Change Material Composite‐Based Li‐Ion Battery Pack Design","authors":"Kartik Kumar, Jahar Sarkar, Swasti Sundar Mondal","doi":"10.1002/ente.202400689","DOIUrl":"https://doi.org/10.1002/ente.202400689","url":null,"abstract":"Hybrid cooling has emerged recently for lithium‐ion batteries, and proper pack design is essential for safe operation. Hence, this research explores a novel approach using wavy microchannels in phase change material (PCM) + aluminum foam packs for cylindrical batteries. A comparison between active cooling (microchannels in aluminum block) and hybrid cooling (microchannels in PCM block and foam‐PCM block) employing MXene + Al2O3/water hybrid nanofluid is made, followed by the impact of the number of microchannels and foam porosity on the cooling effectiveness. Findings indicate that the foam‐PCM yields significantly lower and (309.86 and 2.55 K, respectively) with seven microchannels at 3C discharge with porosity of 85% and pore density of 50 PPI. This also shows a better temperature distribution than other considered blocks. With the increase in porosity from 75% to 95%, there is an adverse effect on and within the cells, which increases from 309.75 to 310.24 K and 2.16 to 3.62 K, respectively. With the increase in microchannels from three to nine, the decreases from 310.04 to 309.72 K, while the increases from 2.05 to 2.85 K. The proposed pack (having moderate weight) yields superior thermal performance, and the enhanced battery life can justify the increased cost.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"39 1","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141742437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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