Elektrokhimicheskaia energetika最新文献

{"title":"Mathematical model of the electrochemical battery with physical constraints of available capacity","authors":"Sergey G. Obukhov, Denis Yu. Davydov","doi":"10.18500/1608-4039-2023-23-3-121-133","DOIUrl":"https://doi.org/10.18500/1608-4039-2023-23-3-121-133","url":null,"abstract":"The article presents a universal combined model of the electrochemical battery, built on the basis of the modified Shepherd equation and the kinetic model. The proposed model provides the adequate mapping of the basic characteristics of the battery in operating mode, taking into account the physical constraints of the capacity available. The results of verification of the developed mathematical model using lead-acid and lithium-iron-phosphate batteries are presented. These results prove its higher accuracy in comparison with the basic model of MATLAB/Simulink electrochemical battery.","PeriodicalId":34569,"journal":{"name":"Elektrokhimicheskaia energetika","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136099994","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":"Problems of development of lithium-ion batteries all over the world and in Russia","authors":"Tatiana L. Kulova, Alexander M. Skundin","doi":"10.18500/1608-4039-2023-23-3-111-120","DOIUrl":"https://doi.org/10.18500/1608-4039-2023-23-3-111-120","url":null,"abstract":"A brief analysis of the current situation in the development of lithium-ion batteries in Russia and all over the world has been carried out. The conclusion is made that Russia produces only a basis point of lithium-ion batteries in the world. It is predicted that Russian production of lithium-ion batteries may increase up to 0.2% in the world by 2030.","PeriodicalId":34569,"journal":{"name":"Elektrokhimicheskaia energetika","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136099992","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":"Development of a hybrid flow battery layout based on the derivatives of quinones and anthraquinones in alkaline solutions","authors":"Ivan A. Kazarinov, Danila E. Voronkov, Yuliya A. Kiseleva, Vladimir V. Oliskevich, Aleksandr Yu. Abramov, Peter G. Nikonorov","doi":"10.18500/1608-4039-2023-23-3-145-157","DOIUrl":"https://doi.org/10.18500/1608-4039-2023-23-3-145-157","url":null,"abstract":"Practical interest in redox flow batteries (RFB) has arisen in recent decades due to the intensive development of alternative energy (such as solar and wind) and the regulation of peak loads in industrial electrical networks. It turns out that large-scale energy storage devices to compensate for fluctuations in solar and wind energy generation and to reduce peak loads in industrial electrical networks and power supply systems for large households are more profitable when redox flow batteries are used. Firstly, they are very easily scalable, and secondly, the energy stored in such batteries is cheaper. In this work, the electrochemical behavior of some promising organic systems based on quinone, anthraquinone and their analogs in alkaline solutions was studied using cyclic voltammetry. The layouts of the flow batteries based on a hybrid redox system (anthraquinone sulfonic acid sodium salt/potassium ferrocyanide and hydroquinone sulfonic acid sodium salt/potassium ferrocyanide) were developed. The operating voltage of such RFBs was about 0.75 and 0.85 V, respectively.","PeriodicalId":34569,"journal":{"name":"Elektrokhimicheskaia energetika","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136099993","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":"Nonlinear impedance spectroscopy of composite materials based on potassium polytitanate","authors":"Vladimir G. Goffman, Anna D. Makarova, Eldana R. Bakhytova, Daria D. Zavitaeva, Alexander V. Gorokhovsky, Natalia O. Morozova, Elena V. Tretyachenko, Mariya A. Vikulova, Nikolai V. Gorshkov, Iana A. Gonnova, Alexey M. Bainyashev","doi":"10.18500/1608-4039-2023-23-3-134-144","DOIUrl":"https://doi.org/10.18500/1608-4039-2023-23-3-134-144","url":null,"abstract":"Experimental studies of the electrochemical and electrophysical properties of protonated potassium polytitanate and sodium-modified pryderite were carried out using the method of nonlinear impedance spectroscopy. The frequency dependencies of the resistance of the volume of grains and grain boundaries were determined depending on the magnitude of the polarization voltage (DC) and on the value of the perturbation signal (AC).","PeriodicalId":34569,"journal":{"name":"Elektrokhimicheskaia energetika","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136099988","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":"Influence of gallium additives on the anodic behavior of the conductive aluminum alloy E-AlMgSi (aldrey) in NaCl electrolyte medium","authors":"I. Ganiev, F. Aliev, Akhror M. Safarov, A. P. Abdulakov","doi":"10.18500/1608-4039-2023-23-2-87-94","DOIUrl":"https://doi.org/10.18500/1608-4039-2023-23-2-87-94","url":null,"abstract":"The work presents the results of the study of the anodic behavior of aluminum alloy E-AlMgSi (aldrey) with gallium, in the medium of 0.03; 0.3 и 3.0% NaCl electrolyte. The corrosion-electrochemical study of alloys was carried out using the potentiostatic method. It was shown that doping E-AlMgSi (aldrey) with gallium increased its corrosion resistance by 20%. The main electrochemical potentials of the alloys when doping with gallium are shifted to the positive range of values, and at the concentration of sodium chloride to the negative values of the ordinate axis.","PeriodicalId":34569,"journal":{"name":"Elektrokhimicheskaia energetika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42668105","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":"Modernization of the flash point tester PE-TVZ for determining fire safety of electrolyte systems of energy-intensive batteries","authors":"V. Y. Mishinkin, G. Kamalova, E. Kuzmina, V. Kolosnitsyn","doi":"10.18500/1608-4039-2023-23-2-80-86","DOIUrl":"https://doi.org/10.18500/1608-4039-2023-23-2-80-86","url":null,"abstract":"The flash point tester PE-TVZ was modernized. The sample volume was reduced from 70 to 5 ml. Mixing of the condensed and gas-vapor phases was done simultaneously. The mercury thermometer was replaced by an electronic one. The correctness of the flash point measurement by the modernized device was tested on the samples with the flash point in the range of 25–170°C. The correlation coefficient between the measured flash points of the samples using the flash point tester PE-TVZ and the modernized one was 99.6%, the discrepancy between the measured values not exceeding 1°C. Modernization of the tester made it possible to reduce the amount of samples used by a factor of 14 while maintaining the accuracy of measuring the flash point.","PeriodicalId":34569,"journal":{"name":"Elektrokhimicheskaia energetika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48107796","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":"Influence of additives of carbon nanotubes and graphene to the active mass of the negative electrode of the lead-acid battery on its electrochemical characteristics","authors":"M. M. Burashnikova, Egor V. Panshin","doi":"10.18500/1608-4039-2023-23-2-95-106","DOIUrl":"https://doi.org/10.18500/1608-4039-2023-23-2-95-106","url":null,"abstract":"The electrochemical characteristics of the negative electrodes of the lead-acid battery with additives of carbon nanotubes and graphene were studied. It was shown that the highest values of the capacitive characteristics of the electrodes were obtained by adding carbon nanotubes to the negative active mass. The processes occurring on the negative electrode were studied by the method of impedance spectroscopy. Applying simulation, an equivalent electrical circuit was obtained, which adequately approximated the obtained frequency dependences. The elements of the proposed equivalent circuit were calculated. It was found that the injection of carbon additives increases the resistance R3 related to the porous structure of the electrodes.","PeriodicalId":34569,"journal":{"name":"Elektrokhimicheskaia energetika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42424471","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":"Renaissance of lithium electrode","authors":"T. Kulova, A. Skundin","doi":"10.18500/1608-4039-2023-23-2-57-79","DOIUrl":"https://doi.org/10.18500/1608-4039-2023-23-2-57-79","url":null,"abstract":"The publications of the recent 15 years devoted to using lithium metal in rechargeable batteries are analyzed and their short overview is presented.","PeriodicalId":34569,"journal":{"name":"Elektrokhimicheskaia energetika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46327948","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":"C/SiC-based anodes for lithium-ion current sources","authors":"N. Leonova, A. Leonova, Oleg A. Bashirov, Alexey S. Lebedev, A. Trofimov, A. Suzdaltsev","doi":"10.18500/1608-4039-2023-23-1-41-50","DOIUrl":"https://doi.org/10.18500/1608-4039-2023-23-1-41-50","url":null,"abstract":"Compositions of ultrafine Si and C particles are promising anode materials for lithium-ion power sources with improved energy characteristics. In the work, samples of lithium-ion power sources with an anode made of ultrafine SiC fibers, as well as mixtures of SiC fibers with graphite (C/SiC) and electrolytically deposited submicron silicon fibers (C/Si/SiC) were fabricated and studied for energy characteristics. The working ability of the mixtures obtained during lithiation/delithiation was shown, and the main energy characteristics of the investigated anode half-cells were determined. After 100 cycles, the SiC anode reached a discharge capacity of 180 and 138 mA·h/g at a charge current of C/20 and C, respectively. Anodes made of mixtures (wt%) 29.5C-70.5SiC and 50Si-14.5C-35.5SiC show discharge capacities of 328 and 400 mA·h/g at a charge current of C/2. The Coulomb efficiency of all samples was above 99%.","PeriodicalId":34569,"journal":{"name":"Elektrokhimicheskaia energetika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48755039","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":"Digital oscillography of proton-conductive polymer membranes","authors":"I. Prokhorov","doi":"10.18500/1608-4039-2023-23-1-3-25","DOIUrl":"https://doi.org/10.18500/1608-4039-2023-23-1-3-25","url":null,"abstract":"Polyvinyl alcohol-based cast membranes have promising application in creating commonly available fuel cells and fuel synthesizers, as well as inexpensive water sources and microelectromechanical systems. In order to control the properties of such membranes a deep understanding of the charge transfer mechanisms and their relationship with the structure formed at a certain composition and manufacturing technology is required. A method for studying the structure of the proton-conductive polymer membranes using digital oscillography of ion currents excited by the low-frequency rectangular pulses with the amplitudes below the threshold voltage of the ionic conductivity in a dehydrated membrane, and for the analysis of the resulting ion current pulses (spikes) in the frames of the model of a proton pump acting in each layer of the membrane is proposed in this paper. Fast Fourier transform of these oscillograms reveals from 2 to 4 branches or spike sequences corresponding to the phases with different ionic conductivity and makes it possible to determine the thicknesses of both high-conductivity phase layers (7–30 µm) and low-conductivity phase interlayers (1–7 µm) formed in the process of polymerization. The reason of spike merging into bursts is described in terms of successively induced increase in the excited proton density over a threshold value in highly conductive layers. The resonance observed in dry proton membranes at the frequencies of about 2.2 to 3.0 kHz is interpreted as the burst merge point with the further increase in impedance due to proton lagging and respective decrease in the effective thickness of active layers. The effective charge carrier concentrations (as small as 1012 to 1013 cm−3) and the velocity (from 5 to 18 cm/s for the highly conductive phases which turned out to be much higher than those observed in solutions) are estimated. The asymmetry of the cast membranes, which becomes apparent at low frequencies and causes the generation of a direct ion current in response to excitation by a purely alternating current, is studied. It is found that the apparent conductivity determining contribution to the total ohmic resistance is made by a thin interlayer with a very low ion velocity, presumably surface layer, rather than the main layers. The conclusion on the optimization of the production technology and the composition of the proton membranes for various applications is made.","PeriodicalId":34569,"journal":{"name":"Elektrokhimicheskaia energetika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46161349","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}