Journal of Power Sources Advances最新文献_第6页

One year operation of an anion exchange membrane water electrolyzer utilizing Aemion+® membrane: Minimal degradation, low H2 crossover and high efficiency 使用Aemion+®膜的阴离子交换膜水电解槽运行一年：最小降解、低H2交叉和高效

IF 4.5

Journal of Power Sources Advances Pub Date : 2023-01-01 DOI: 10.1016/j.powera.2023.100109

Marta Moreno-González , Peter Mardle , Shan Zhu , Bobak Gholamkhass , Scot Jones , Nathan Chen , Benjamin Britton , Steven Holdcroft

引用次数: 11

X-ray absorption spectromicroscopy gives access to Li1+xAlxGe2−x(PO4)3 (LAGP) local degradation at the anode-electrolyte interface x射线吸收光谱显微镜可以在阳极-电解质界面处获得Li1+xAlxGe2−x(PO4)3 (LAGP)的局部降解

IF 4.5

Journal of Power Sources Advances Pub Date : 2022-11-01 DOI: 10.1016/j.powera.2022.100106

Majid Kazemian , Maya Kiskinova , Benedetto Bozzini

{"title":"X-ray absorption spectromicroscopy gives access to Li1+xAlxGe2−x(PO4)3 (LAGP) local degradation at the anode-electrolyte interface","authors":"Majid Kazemian , Maya Kiskinova , Benedetto Bozzini","doi":"10.1016/j.powera.2022.100106","DOIUrl":"10.1016/j.powera.2022.100106","url":null,"abstract":"<div><p>Batteries with inorganic solid-state electrolytes (ISSE) are attracting notable interest for next-generation systems implementing Lithium (Li) metal anodes, in view of achieving higher energy densities combined with superior safety. Notwithstanding extensive research and development work, this technology is not yet ready for industrial implementation, one of the key challenges being the stability of ISSEs, chiefly at the anodic interface. This work attacks this issue for the specific case of the LAGP/Li (Lithium Aluminium Germanium Phosphate/Lithium) interface with a micro-spectroscopic approach centred on <em>post mortem</em> Scanning Transmission X-ray Microscopy (STXM) of intact LMO/LAGP/Li thin-film batteries, microfabricated in discharged state. Pristine and cycled cells were mapped to pinpoint morphochemical changes, induced by electrochemical ageing. The evidenced shape changes, corresponding to mechanical damaging of the solid/solid electrodic interfaces correlate with LAGP decomposition at the anode, leading to reduction of Ge, whereas the chemical state at the cathodic interface is preserved. Thanks to its submicron spacial resolution, the STXM at the Ge L-edge and O K-edge spectra allowed to assess the highly localized nature of the chemical transformation of LAGP and its correlation with the formation of Li outgrowth features.</p></div>","PeriodicalId":34318,"journal":{"name":"Journal of Power Sources Advances","volume":"17 ","pages":"Article 100106"},"PeriodicalIF":4.5,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666248522000245/pdfft?md5=d3c27cf428d85d9d5a4df5b0021104c7&pid=1-s2.0-S2666248522000245-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46528837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A calorimetric approach to fast entropy-variations extraction for lithium-ion batteries using optimized galvanostatic intermittent titration technique 基于优化恒流间歇滴定技术的锂离子电池熵变快速提取热法研究

IF 4.5

Journal of Power Sources Advances Pub Date : 2022-08-01 DOI: 10.1016/j.powera.2022.100097

Abdul Muiz Ahmad, Guillaume Thenaisie, Sang-Gug Lee

{"title":"A calorimetric approach to fast entropy-variations extraction for lithium-ion batteries using optimized galvanostatic intermittent titration technique","authors":"Abdul Muiz Ahmad, Guillaume Thenaisie, Sang-Gug Lee","doi":"10.1016/j.powera.2022.100097","DOIUrl":"https://doi.org/10.1016/j.powera.2022.100097","url":null,"abstract":"<div><p>A fast entropy-variations (Δ<em>S</em>) extraction method has been proposed based on calorimetry, which determines the heat associated with Δ<em>S</em> by analyzing the electro-thermal response of a battery to a sequence of constant current pulses, i.e., the galvanostatic intermittent titration technique (GITT). The rest times in GITT are reduced by only considering limited relaxation of the ionic concentration gradients inside the battery after the current interruptions while completely ignoring the thermal equilibrium conditions inside the calorimeter. The resulting thermal signal of the battery is analyzed using an algorithm that adopts exponential regression to characterize the generated heat energy corresponding to each current pulse. Additionally, the polarization heat inside the battery is investigated by taking into account the initial presence of the concentration gradients when a current pulse is applied. Thus, the optimized rest times between the successive current pulses can reduce the measurement time manyfold compared to the previously reported methods, which require the battery to reach both electrochemical and thermal equilibriums. This work shows that the Δ<em>S</em> profiles of a 1 Ah NMC811/graphite pouch cell with 2.5% state of charge (SOC) resolution can be extracted at least three times faster than the method with unoptimized rest times, in a highly repeatable manner.</p></div>","PeriodicalId":34318,"journal":{"name":"Journal of Power Sources Advances","volume":"16 ","pages":"Article 100097"},"PeriodicalIF":4.5,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666248522000154/pdfft?md5=c3257471c3f143efc6d469f922f066e9&pid=1-s2.0-S2666248522000154-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136974976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determination of reliable resistance values for electrical double-layer capacitors 双层电容器可靠电阻值的测定

IF 4.5

Journal of Power Sources Advances Pub Date : 2022-08-01 DOI: 10.1016/j.powera.2022.100098

Lukas Köps , Pietro Zaccagnini , Candido Fabrizio Pirri , Andrea Balducci

引用次数: 0

Stress evolution and thickness change of a lithium-ion pouch cell under various cycling conditions 不同循环条件下锂离子袋状电池的应力演化及厚度变化

IF 4.5

Journal of Power Sources Advances Pub Date : 2022-08-01 DOI: 10.1016/j.powera.2022.100103

Congrui Jin , Yanli Wang , Ali Soleimani Borujerdi , Jianlin Li

{"title":"Stress evolution and thickness change of a lithium-ion pouch cell under various cycling conditions","authors":"Congrui Jin , Yanli Wang , Ali Soleimani Borujerdi , Jianlin Li","doi":"10.1016/j.powera.2022.100103","DOIUrl":"10.1016/j.powera.2022.100103","url":null,"abstract":"<div><p>To design large-sized lithium-ion battery modules for the application of electric vehicles and grid-level energy storage, it is of important significance to understand how stress and dimension of a single pouch cell fluctuate during charge/discharge cycles. In this study, stress evolution under the constant-thickness condition and thickness change under the constant-stress condition are measured for in-house fabricated pouch cells, respectively. The results of stress measurements show that the stress increase percentage generally decreases when the charge/discharge current increases, regardless of the value of the initial compressive stress. With the same current density, the stress increase percentage generally increases when the upper cutoff voltage increases. With the same current density and upper cutoff voltage, the stress increase percentage decreases when the initial compressive stress increases. The results of thickness measurements show that the volume expansion percentage generally increases when the current density increases, regardless of the value of the constant compressive stress. With the same current density, the volume expansion percentage generally increases when the upper cutoff voltage increases. With the same current density and upper cutoff voltage, the volume expansion decreases when the constant compressive stress increases. The results provide important insights into the design principles of battery packs.</p></div>","PeriodicalId":34318,"journal":{"name":"Journal of Power Sources Advances","volume":"16 ","pages":"Article 100103"},"PeriodicalIF":4.5,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S266624852200021X/pdfft?md5=f780a63035a8a3b129c27f40745b0c93&pid=1-s2.0-S266624852200021X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45346845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Acceleration of through-plane water removal in polymer electrolyte fuel cell by channel hydrophilization and electrode perforation 通道亲水性和电极穿孔加速聚合物电解质燃料电池的通平面除水

IF 4.5

Journal of Power Sources Advances Pub Date : 2022-08-01 DOI: 10.1016/j.powera.2022.100102

Kosuke Nishida , Yudai Kono , Ryoichi Funaoka , Tatsuki Furukawa

{"title":"Acceleration of through-plane water removal in polymer electrolyte fuel cell by channel hydrophilization and electrode perforation","authors":"Kosuke Nishida , Yudai Kono , Ryoichi Funaoka , Tatsuki Furukawa","doi":"10.1016/j.powera.2022.100102","DOIUrl":"10.1016/j.powera.2022.100102","url":null,"abstract":"<div><p>To alleviate water flooding in cathode electrodes of polymer electrolyte fuel cells (PEFCs), it is essential to design the optimum channel/electrode structure for rapid water removal. This study presented a novel hybrid structure with the channel hydrophilization and electrode perforation for accelerating the through-plane water discharge and demonstrated the effect of its structure on the water transports in the cathode channel and gas diffusion layer (GDL) of a working PEFC with optical and X-ray imaging. The results revealed that the hydrophilization of the channel walls encourages the through-plane water suction form the GDL to the channel. Furthermore, the electrode perforation promotes the in-plane water discharge from the fine porous media to the large penetration grooves and holes. The synergistic effect of these two water transports in the hybrid structure effectively alleviates the flooding in the porous layers and enhances the oxygen diffusibility, resulting in significant improvement of the cell performance.</p></div>","PeriodicalId":34318,"journal":{"name":"Journal of Power Sources Advances","volume":"16 ","pages":"Article 100102"},"PeriodicalIF":4.5,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666248522000208/pdfft?md5=5e118c01fed9a2bf192947514e4f937d&pid=1-s2.0-S2666248522000208-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41698249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Evaluation of ionomer distribution on porous carbon aggregates in catalyst layers of polymer electrolyte fuel cells 聚合物电解质燃料电池催化剂层多孔碳团聚体上离子分布的评价

IF 4.5

Journal of Power Sources Advances Pub Date : 2022-05-01 DOI: 10.1016/j.powera.2022.100096

Kayoung Park, Ruijing Gao, Magnus So, Tae Hyoung Noh, Naoki Kimura, Yoshifumi Tsuge, Gen Inoue

{"title":"Evaluation of ionomer distribution on porous carbon aggregates in catalyst layers of polymer electrolyte fuel cells","authors":"Kayoung Park, Ruijing Gao, Magnus So, Tae Hyoung Noh, Naoki Kimura, Yoshifumi Tsuge, Gen Inoue","doi":"10.1016/j.powera.2022.100096","DOIUrl":"https://doi.org/10.1016/j.powera.2022.100096","url":null,"abstract":"<div><p>Understanding ionomer distribution properties that facilitate proton conduction and oxygen transfer to Pt particles in the cathode catalyst layer (CCL) of the polymer electrolyte fuel cell (PEFC) is essential for optimized design of CCL with high cell performance. In this study, the model structure of Ketjen black (KB) as porous carbon was numerically simulated. After validating the model, the relationship between the weight ratio of ionomer/carbon (I/C) and ionomer coverage was investigated. Moreover, relative proton conductivity of simulated KB was compared with the reference data of Vulcan XC-72 (VB) as non-porous carbon. Under the same I/C ratio conditions, ionomer coverage significantly differed depending on the carbon support. Moreover, under the same carbon volume ratio conditions, simulated KB exhibited lower relative proton conductivity than VB because simulated KB had the lower ionomer volume ratio than that of simulated VB. The relationship between ionomer content and ionomer properties differ depending on the carbon support. The results of our study can contribute to designing an optimal catalyst layer.</p></div>","PeriodicalId":34318,"journal":{"name":"Journal of Power Sources Advances","volume":"15 ","pages":"Article 100096"},"PeriodicalIF":4.5,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666248522000142/pdfft?md5=814f71c948285f12645ac647016d3468&pid=1-s2.0-S2666248522000142-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91709317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the role of porous transport layer thickness in polymer electrolyte water electrolysis 多孔传输层厚度在聚合物电解质水电解中的作用

IF 4.5

Journal of Power Sources Advances Pub Date : 2022-05-01 DOI: 10.1016/j.powera.2022.100095

Carl Cesar Weber , Tobias Schuler , Ruben De Bruycker , Lorenz Gubler , Felix N. Büchi , Salvatore De Angelis

{"title":"On the role of porous transport layer thickness in polymer electrolyte water electrolysis","authors":"Carl Cesar Weber , Tobias Schuler , Ruben De Bruycker , Lorenz Gubler , Felix N. Büchi , Salvatore De Angelis","doi":"10.1016/j.powera.2022.100095","DOIUrl":"10.1016/j.powera.2022.100095","url":null,"abstract":"<div><p>The reduction of capital and operational expenditure in polymer electrolyte water electrolysis (PEWE) is of crucial importance for materializing the hydrogen economy. Optimizing the components and design of PEWE cells is a major contribution to this goal. In this study, we have analyzed the impact of reducing the anodic porous transport layer (PTL) thickness by over one order of magnitude from 2 mm to 0.16 mm while keeping other parameters in the PTL constant for a systematic comparison. PTL morphology and its impact on cell performance have been correlated by X-ray tomographic microscopy (XTM) and overpotential breakdown analysis. We found that varying PTL thicknesses in this range can contribute to up to 120 mV overpotential at 4 A/cm<sup>2</sup> which can be attributed to water transport limitations below the flow field land in thin PTLs. Furthermore, the results indicate that there is an optimal thickness in dependency of the flow field design. For the investigated class of materials, this is corresponding to roughly half of the flow field land size. Subsequently, a guideline was deduced for the optimal relation of PTL thickness and flow field characteristics.</p></div>","PeriodicalId":34318,"journal":{"name":"Journal of Power Sources Advances","volume":"15 ","pages":"Article 100095"},"PeriodicalIF":4.5,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666248522000130/pdfft?md5=234caa6c0309dc0ff4f6324f978d9c65&pid=1-s2.0-S2666248522000130-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45425724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Tuning the photocatalytic properties of porphyrins for hydrogen evolution reaction: An in-silico design strategy 调节卟啉在析氢反应中的光催化性能:一种硅设计策略

IF 4.5

Journal of Power Sources Advances Pub Date : 2022-05-01 DOI: 10.1016/j.powera.2022.100090

Cleber F.N. Marchiori , Giane B. Damas , C. Moyses Araujo

{"title":"Tuning the photocatalytic properties of porphyrins for hydrogen evolution reaction: An in-silico design strategy","authors":"Cleber F.N. Marchiori , Giane B. Damas , C. Moyses Araujo","doi":"10.1016/j.powera.2022.100090","DOIUrl":"10.1016/j.powera.2022.100090","url":null,"abstract":"<div><p>Porphyrins constitute a class of attractive materials for harvesting sunlight and promote chemical reactions following their natural activity for the photosynthetic process in plants. In this work, we employ an in-silico design strategy to propose novel porphyrin-based materials as photocatalysts for hydrogen evolution reaction (HER). More specifically, a set of meso-substituted porphyrins with donor-acceptor architecture are evaluated within the density functional theory (DFT) framework, according to these screening criteria: i) broad absorption spectrum in the ultraviolet–visible (UV–Vis) and near infrared (NIR) range, ii) suitable redox potentials to drive the uphill reaction that lead to molecular hydrogen formation, iii) low exciton binding free energy (<em>E</em><sub><em>b</em></sub>), and iv) low hydrogen binding free energy (ΔG<sub>H</sub>), a quantity that should present low HER overpotentials, ideally ΔG<sub>H</sub> = 0. The outcomes indicate that the Se-containing compound, where the donor ligands are attached to the porphyrin core by the spacer, outstands as the most promising candidate that is presented in this work. It displays a broad absorption in the visible and NIR regions to up to 1000 nm, suitable catalytic power, low <em>E</em><sub><em>b</em></sub> (in special in high dielectric constant environment, such as water) and the lowest ΔG<sub>H</sub> = +0.082 eV. This is comparable, in absolute values, to the value exhibited by platinum (ΔG<sub>H</sub> = −0.10 eV), one of the most efficient catalysts for HER.</p></div>","PeriodicalId":34318,"journal":{"name":"Journal of Power Sources Advances","volume":"15 ","pages":"Article 100090"},"PeriodicalIF":4.5,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666248522000087/pdfft?md5=cd79bf0716d1fa3c8d686826769dcad7&pid=1-s2.0-S2666248522000087-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45931609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Simulation to estimate the correlation of porous structure properties of secondary batteries determined through machine learning 模拟估计通过机器学习确定的二次电池多孔结构特性的相关性

IF 4.5

Journal of Power Sources Advances Pub Date : 2022-05-01 DOI: 10.1016/j.powera.2022.100094

Shota Ishikawa, Xuanchen Liu, Tae Hyoung Noh, Magnus So, Kayoung Park, Naoki Kimura, Gen Inoue, Yoshifumi Tsuge

{"title":"Simulation to estimate the correlation of porous structure properties of secondary batteries determined through machine learning","authors":"Shota Ishikawa, Xuanchen Liu, Tae Hyoung Noh, Magnus So, Kayoung Park, Naoki Kimura, Gen Inoue, Yoshifumi Tsuge","doi":"10.1016/j.powera.2022.100094","DOIUrl":"10.1016/j.powera.2022.100094","url":null,"abstract":"<div><p>The negative and positive electrodes of lithium-ion batteries exhibit different structural characteristics. In this study, considering the characteristics of each electrode layer of a lithium-ion battery, the correlation equation of the effective ion conductivity was formulated using a machine learning model. In general, the tortuosity depends on the porous structure, and therefore, the morphology of the packed particles. The graphite particles that constitute the negative electrode have a flat shape, in terms of the aspect ratio. Therefore, the tortuosity of a structure likely depends on the aspect ratio. In contrast, because the positive electrode represents a secondary aggregate, the tortuosity depends on the particle morphology. In this scenario, the parameters representing the particle shape are unclear. Considering these aspects, the tortuosity for the negative electrode in terms of the particle aspect ratio was predicted through nonlinear regression based on a support vector machine. The tortuosity for the positive electrode was predicted using the cross-sectional image of the electrode, with the particle shape considered as a feature. This clarified the correlation between the tortuosity and other structural properties or images. The obtained findings can be applied in various fields pertaining to porous materials and facilitate the optimization of structural designs.</p></div>","PeriodicalId":34318,"journal":{"name":"Journal of Power Sources Advances","volume":"15 ","pages":"Article 100094"},"PeriodicalIF":4.5,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666248522000129/pdfft?md5=c09857513edb0ac646835233cc3982d7&pid=1-s2.0-S2666248522000129-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49450498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2