EngRN: Electrochemical Energy Engineering (EngRN) (Topic)最新文献

{"title":"Thermodynamic Analysis of a Wood Chips-Based Cycle Integrated with Solid Oxide Fuel Cell","authors":"A. Kasaeian, Hamed Hadavi, Yasaman Amirhaeri, F. Pourfayaz","doi":"10.2139/ssrn.3877196","DOIUrl":"https://doi.org/10.2139/ssrn.3877196","url":null,"abstract":"Biomass is prominent among all types of renewable energy sources because of its ability in producing electricity and heat. Regarding this matter, a novel integrated structure is introduced in order to produce power and heat through biomass fuel simultaneously. This cycle has different sections including gasification process, fuel cell, Rankine cycle, ORC and a hot water and air line. The heat required for gasifier agent and air is supplied through recovery energy in this cycle. In this article, wood chips are employed to supply the required fuel of a fuel cell by gasification process. Also, the heat of the SOFC outlet stream is employed for heating up the inlet streams of Rankine cycle and ORC. Both energetic and exergetic analyses are considered in order to evaluate the performance of the proposed cycle. A sensitivity analysis is performed for observing the effects of the operational parameters on the output power and overall efficiency of the system. The results illustrate that the output power of the cycle is 152.8 MW and the overall electrical and thermal efficiencies are 51.43% and 81.13%, respectively. Also, the highest portion of exergy destruction is allocated to the fuel cell, which is about 65 MW.","PeriodicalId":360688,"journal":{"name":"EngRN: Electrochemical Energy Engineering (EngRN) (Topic)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113967628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of Relaxation Time on Electrochemical Impedance Spectroscopy Characterization of the Most Common Lithium Battery Technologies – Experimental Study and Chemistry-Neutral Modeling","authors":"Md Sazzad Hosen, R. Gopalakrishnan, T. Kalogiannis, J. Jaguemont, J. Van Mierlo, M. Berecibar","doi":"10.2139/ssrn.3778330","DOIUrl":"https://doi.org/10.2139/ssrn.3778330","url":null,"abstract":"In the electrified vehicle application, understanding of the battery characteristics is very important as it is the state-of-art principal energy source. The key battery parameters can be identified by one of the robust and non-destructive characterization techniques as Electrochemical Impedance Spectroscopy (EIS). However, relaxing the battery cell before performing the EIS method, is crucial for characterization results that should be standardized.In this study, the three most common and commercially available lithium-ion technologies (NMC/graphite, LFP/graphite, NCA/LTO) are investigated at 15-45ºC temperature, in the range of 20-80% state of charges (SoCs) and with fresh and aged state of health (SoH) conditions. The analysis shows that the duration of the relaxation time spell before impedance measurement has an impact on the battery's non-linear behavior. A rest time of 2h can be proposed irrespective of battery health condition considering neutral technology-based impedance measurement. Impedance growth in ohmic and charge transfer characteristics is found due to aging and the effect of rest periods are analyzed as well, from an electrochemical standpoint. This experimental data is fitted to develop an empirical model, which can predict the non-linear dynamics of lithium technologies with a 4-8% relative error for longer rest time.","PeriodicalId":360688,"journal":{"name":"EngRN: Electrochemical Energy Engineering (EngRN) (Topic)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129550263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrospun Conductive Nanofiber Yarns Accelerating Mesenchymal Stem Cells Differentiation and Maturation into Schwann Cell-Like Cells Under a Combination of Electrical Stimulation and Chemical Induction","authors":"Shaohua Wu, Ye Qi, Wen Shi, Mitchell A. Kuss, Shaojuan Chen, B. Duan","doi":"10.2139/ssrn.3674052","DOIUrl":"https://doi.org/10.2139/ssrn.3674052","url":null,"abstract":"Development of multifunctional tube-filling materials is required to improve the performances of the existing nerve guidance conduits (NGCs) in the repair of long-gap peripheral nerve (PN) injuries. In this study, composite nanofiber yarns (NYs) based on poly(p-dioxanone) (PPDO) biopolymer and different concentrations of carbon nanotubes (CNTs) were manufactured by utilizing a modified electrospinning apparatus. We confirmed the successful incorporation of CNTs into the PPDO nanofibers of as-fabricated composite NYs. The PPDO/CNT NYs exhibited similar morphology and structure in comparison with pure PPDO NYs. However, the PPDO/CNT NYs showed obviously enhanced mechanical properties and electrical conductivity compared to PPDO NYs. The biological tests revealed that the addition of CNTs had no negative effects on the cell growth, and proliferation of rabbit Schwann cells (rSCs), but it better maintained the phenotype of rSCs. We also demonstrated that the electrical stimulation (ES) significantly enhanced the differentiation capability of human adipose-derived mesenchymal stem cells (hADMSCs) into SC-like cells (SCLCs) on the PPDO/CNT NYs. More importantly, a unique combination of ES and chemical induction was found to further enhance the maturation of hADMSC-SCLCs on the PPDO/CNT NYs by notably upregulating the expression levels of SC myelination-associated gene markers and increasing the growth factor secretion. Overall, this study showed that our electrically conductive PPDO/CNT composite NYs could provide a beneficial microenvironment for various cell activities, making them an attractive candidate as NGC-infilling substrates for PN regeneration applications.","PeriodicalId":360688,"journal":{"name":"EngRN: Electrochemical Energy Engineering (EngRN) (Topic)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128713289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural and Electronic Properties of Zigzag Single Wall (8,0), (9,0), and (10,0) Silicon Carbide Nanotubes Sandwiched between Different Elements","authors":"A. Mulatu, Kenate Nemera, L. Daja","doi":"10.2139/ssrn.3708738","DOIUrl":"https://doi.org/10.2139/ssrn.3708738","url":null,"abstract":"Using first principles density functional theory calculations, the electronic and geometric structures of three different types of zigzag single wall silicon carbide nanotubes (ZSSiCNt), (8,0), (9,0), and (10,0), have been studied by sandwiching nanotubes between different semiconductors, group three elements, and some transition metal elements. When the (9,0) zSSiCNt is sandwiched between different semiconductors, the binding energy (B E ) varies from 2.05 to 5.68 eV/atom. When the (10,0) zSSiCNt is sandwiched between group III elements, the B E varies from 4.35 to 6.89 eV/atom. When the (10,0) zSSiCNt is sandwiched between some transition elements, the B E varies from 1.63 to 5.97 eV/atom. The binding energy variation of SWSiCNT by substituting different elements at the site of carbon and silicon at the end of the zigzag silicon carbide nanotubes is shown. Substitution of Fe and Ga at the site of Si increases the binding energy to 4.04 eV/atom & 6.32 eV/atom, respectively. The cohesive energy appears to saturate between 6.00 to 6.90 eV, and the stability of different (8,0) SWNt is compared.","PeriodicalId":360688,"journal":{"name":"EngRN: Electrochemical Energy Engineering (EngRN) (Topic)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128380761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fracture of Void-Embedded High-Entropy-Alloy Films: A Comprehensive Atomistic Study","authors":"Yi Cui, Zengtao Chen, Y. Ju","doi":"10.2139/ssrn.3580465","DOIUrl":"https://doi.org/10.2139/ssrn.3580465","url":null,"abstract":"Abstract Comprehensive molecular dynamics (MD) simulations are performed to study the stress response and deformation mechanism in void-embedded, single-crystal and polycrystalline, high-entropy-alloy (HEA) films under uniaxial tensile loading. Our results reveal that certain void-embedded HEA films can be, by far, superior to pure Ni in terms of tensile ductility and the resistance to crack propagation. The fracture strain of the 10%Co CoCrFeMnNi and the equiatomic CoFeMnNi, respectively, doubles or triples that of the equiatomic CoCrFeMnNi, which still doubles that of pure Ni. Regarding the deformation mechanism, high tensile ductility of HEAs can be attributed to the formation of partial dislocations, nanotwinning and the impediment of the otherwise glissile dislocations due to the lattice distortion effect. The ultimate tensile strength of HEA film shows better resistance against stress deterioration due to elliptical voids. The stress response of the void-embedded, polycrystalline Ni films obeys the reverse Hall–Petch effect, while the void-embedded, polycrystalline HEA films do not.","PeriodicalId":360688,"journal":{"name":"EngRN: Electrochemical Energy Engineering (EngRN) (Topic)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124048032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unveiling the Stable Nature of the Solid Electrolyte Interphase between Lithium Metal and Lipon Via Cryogenic Electron Microscopy","authors":"Diyi Cheng, T. Wynn, Xuefeng Wang, Shen Wang, Minghao Zhang, R. Shimizu, Shuang Bai, Han Nguyen, C. Fang, Min‐cheol Kim, Weikang Li, B. Lu, S. Kim, Y. Meng","doi":"10.2139/ssrn.3640837","DOIUrl":"https://doi.org/10.2139/ssrn.3640837","url":null,"abstract":"Summary The solid electrolyte interphase (SEI) is regarded as the most complex but the least understood constituent in secondary batteries using liquid and solid electrolytes. The dearth of such knowledge in all-solid-state battery (ASSB) has hindered a complete understanding of how certain solid-state electrolytes, such as LiPON, manifest exemplary stability against lithium metal. By employing cryogenic electron microscopy (cryo-EM), the interphase between lithium metal and LiPON is successfully preserved and probed, revealing a multilayer-mosaic SEI structure with concentration gradients of nitrogen and phosphorus, materializing as crystallites within an amorphous matrix. This unique SEI nanostructure is less than 80 nm and is stable and free of any organic lithium-containing species or lithium fluoride components, in contrast to SEIs often found in state-of-the-art organic liquid electrolytes. Our findings reveal insights on the nanostructures and chemistry of such SEIs as a key component in lithium metal batteries to stabilize lithium metal anode.","PeriodicalId":360688,"journal":{"name":"EngRN: Electrochemical Energy Engineering (EngRN) (Topic)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116109938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Review of Li- Ion Battery Thermal Management Methods and Mitigating Techniques: 2/3 W Electric Vehicle for Tropical Climatic Condition","authors":"K. Das, I. Paul, Sanni Kumar Roy, Krishna Kant Yadav","doi":"10.2139/ssrn.3848366","DOIUrl":"https://doi.org/10.2139/ssrn.3848366","url":null,"abstract":"The quantum of transient heat generated and subsequent transient temperature is interdependent non linear functionality with several boundary conditions affecting the lithium ion battery pack performance with transient heat conduction under tangible operating and ambient temperature has a substantial short and long term impact on the electrical performance, life, reliability and safety of lithium-ion batteries.<br><br>In the tropical condition, the variation in ambient temperature of lithium ion battery pack for 2/3 wheeler is comparatively high and varies from + 25oC to +55oC because of higher atmospheric temperature as well as the batteries having less thermal evacuation system and ventilation because of lack of space and other constraints, thus exerting constantly higher but variable thermal stress like temperature gradients, thermal expansion or contraction and thermal shocks causes irreparable aging and degradation effect.<br><br>It is essential to quantify the transient heat generation and temperature distribution of a battery cell, module, and pack during different operating conditions with methodologies for its proficient management and mitigating techniques.<br><br>The demand for thermal management is multi prong to maintain the temperature of batteries within the safe operating temperature range zone and the non-uniform temperature distribution must remain within the range of the reference limit for the purpose of preventing the occurring of thermal runaway for favorable working performance.<br><br>The objective of thermal management is to device suitable monitoring and measurement, designing the suitable thermal path to expel heat generated and suitable mechanism for prevention of breakdown.<br><br>In this paper, the comparative transient temperature distributions across two identical battery packs(48V24Ah (15S4P) series parallel connected lithium-ion Ferro phosphate cell), one without any thermal management system and other with thermal management system are studied under various charging and discharging currents with various ambient temperature range, similar to tropical region for checking the effectiveness of designed thermal management system of the battery pack","PeriodicalId":360688,"journal":{"name":"EngRN: Electrochemical Energy Engineering (EngRN) (Topic)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129606316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Role of Electrode in Tuning Quantum Transport Properties of Oxygen Ended Zigzag Boron Carbide Nanoribbon","authors":"Rinki Bhowmick, Dwaipayan Saha, Indranil Mukherjee, Jesmin Roy, Lavkush Kumar, S. Sen","doi":"10.2139/ssrn.3526711","DOIUrl":"https://doi.org/10.2139/ssrn.3526711","url":null,"abstract":"Herein we report radical swing in quantum transport action in two-dimensional zigzag Boron carbide nanoribbon (ZBC2N) due to change in electrodes from Au (111) to Graphene. In case of Gold Electrode this system shows metallic feature having enormously high device current (thousands of nA) whereas with Graphene electrodes system gets insulating having negligible current. Results obtained have been substantiated through transmission spectra analysis obtained at equilibrium (zero bias) and finite bias.","PeriodicalId":360688,"journal":{"name":"EngRN: Electrochemical Energy Engineering (EngRN) (Topic)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115243925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A New Phase Boundary of Oxygen Octahedral Tilt-Untilt Transition in Bi 0.5Na 0.5TiO 3-PbTiO 3 Piezoelectric Ceramics","authors":"K. Yan, S. Ren, Fangfang Wang, Dawei Wu, K. Zhu, X. Ren","doi":"10.2139/ssrn.3436417","DOIUrl":"https://doi.org/10.2139/ssrn.3436417","url":null,"abstract":"The investigation on the fine structure evolutions around morphotropic phase boundary (MPB) is important to understand the origin of high piezoelectricity in ferroelectric ceramics. Here, we discovered a new boundary associated with oxygen octahedron tilt-untilt phase transition by exploring the average and local structure evolutions in the vicinity of the MPB in (Bi_0.5Na_0.5)TiO₃-PbTiO₃ (BNT-PT) ceramics. It is found that the local structure transition due to oxygen octahedron rotation is decoupled with the phase transition from rhombohedral to tetragonal phase at MPB in the BNT-PT. Such a local tilt-untilt transition is responsible to the large high-field-induced electrostrain at MPB of the BNT-PT. The crucial difference in MPB between the BNT-PT and the classical piezoelectric Pb(Zr_1-xTi_x)O₃ is discussed by linking the structure evolutions to the performance at the MPBs. This work helps us to figure out the origin of the unique large high-field-induced electrostrain in BNT-based ceramics, and may be helpful to the design of high-performance piezoelectric ceramics in the future.","PeriodicalId":360688,"journal":{"name":"EngRN: Electrochemical Energy Engineering (EngRN) (Topic)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126175641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Catalyst SnO2 Improves the Performance of All-Solid-State Batteries with LiNi0.5Mn1.5o4@SnO2 Cathodes, Pmma-Pvdf@ Li1.3ai0.3ti1.7(Po4)3 Composite Solid Electrolyte and Lithium Metal Anodes","authors":"Xinghua Liang, Xingtao Jiang, Shuaibo Zeng, Weichao Xu, Linxiao Lan, Xi Wu, Dayong Yang","doi":"10.2139/ssrn.3932109","DOIUrl":"https://doi.org/10.2139/ssrn.3932109","url":null,"abstract":"The solid electrolytes are strongly considered as the next-generation electrolyte due to the natural safety compared with liquid electrolyte, however, the overall low-rate performance of all-solid-state batteries and large internal resistance have hindered the development of all-solid-state batteries. In this paper, SnO 2 is grown in situ on LiNi 0.5 Mn 1.5 O 4 (LNMO) to increase the specific capacity and stabilize the cycle performance. After the preparation of the cathode material, it is assembled with the solid electrolyte slurry prepared by PMMA-PVDF @ Li 1.3 AI 0.3 Ti 1.7 (PO 4 ) 3 (LATP) to form an all-solid-state battery, which has good electrochemical performance, even at high rates. At a test temperature of 60 °C, the initial specific capacity obtained at 0.2 C is 125 mAh·g -1 . After 100 cycles, it drops to 105 mAh·g -1 , with a capacity decay rate of 94.2%, and the initial specific capacity at a rate of 0.5 C. After being 110 mAh·g -1 , 500 cycles, the specific capacity remains at 95 mAh·g -1 . The excellent performance of coating LNMO depends on the binding of SnO 2 to Mn + . The good catalytic effect enables the high specific capacity of SnO 2 and the high voltage window of LNMO to be displayed. After the coating of tin dioxide, the interface contact between the positive electrode and the solid electrolyte is improved. And then suppress the generation of space charge layer. Combined with the prepared dual matrix PMMA-PVDF@LATP, the working environment and cycle stability of the all-solid-state battery are improved, and the development of the all-solid-state battery is promoted.","PeriodicalId":360688,"journal":{"name":"EngRN: Electrochemical Energy Engineering (EngRN) (Topic)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126656524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}