Temat: cathode - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Composite La0.6Sr0.4Co0.8Fe0.2O3/Ag cathode for SoFCs with Ce0.8Sm0.2O1.9 electrolyte
Kompozytowa katoda La0.6Sr0.4Co0.8Fe0.2O3/Ag do stało-tlenkowych ogniw paliwowych z elektrolitem Ce0.8Sm0.2O1.9
Autorzy:: Mosiałek, M.
Dudek, M.
Wojewoda-Budka, J.
Tematy:: SOFC
katoda
LSCF
srebro
SDC
cathode
silver; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/351192.pdf Link otwiera się w nowym oknie
Opis:: nfluence of the short time external polarization of silver electrode contacted Ce0.8Sm0.2O1.9 electrolyte was studied. Silver is moving along the Ce0.8Sm0.2O1.9 surface during the -0.5 V cathodic polarization at 600°C. It caused both the increase of the electrode - electrolyte contact area and the triple phase boundary length but also decrease of electrolyte and polarization resistances. Deposit of silver oxide was found at the place where the electrode polarized at the potential of 0.5 V contacted the electrolyte and around. The decrease of electrolyte and polarization resistance was smaller but more stable in this case. Composite cathodes were obtained on Ce0.8Sm0.2O1.9 electrolyte with the double step sintering procedure. Silver introduced into a La0.6Sr0.4Co0.8Fe0.2O3 cathode improved a performance of a La0.6Sr0:4Co0.8Fe0.2O3|Ce0.8Sm0.2O1.9|Ni cell by 33%.
Zbadano wpływ zewnętrznej polaryzacji na elektrodę srebrną w kontakcie z elektrolitem tlenkowym Ce0:8Sm0:2O1:9. W czasie polaryzacji katodowej przy potencjale elektrody równym -0.5 V w temperaturze 600 C srebro migruje po powierzchni elektrolitu. Powoduje to zarówno wzrost powierzchni kontaktu elektrody z elektrolitem jak i długości linii styku trzech faz. Powoduje to również spadek rezystancji elektrolitu oraz rezystancji polaryzacyjnej. W miejscu styku elektrody polaryzowanej potencjałem 0,5 V i elektrolitu oraz w jego pobliżu stwierdzono obecność tlenku srebra. Spadek rezystancji elektrolitu i rezystancji polaryzacyjnej był w tym przypadku mniejszy ale bardziej stabilny. Wykonano kompozytowe katody Ag/La0:6Sr0:4Co0:8Fe0:2O3 metodą dwustopniowego spiekania na podłożu elektrolitu Ce0:8Sm0:2O1:9. Wprowadzenie srebra do struktury katody La0:6Sr0:4Co0:8Fe0:2O3 podniosło moc ogniwa La0:6Sr0:4Co0:8Fe0:2O3jCe0:8Sm0:2O1:9/Ni o 33%.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Effect of Sodium Penetration on Microscopic Deformation of Carbon-Based Cathode Materials During Aluminum Electrolysis
Autorzy:: Liu, Hitao
Huang, Yunhong
Wang, Wei
Zhang, Ziyang
Dang, Hengyao
Tematy:: carbon cathode
microstructure
sodium penetration
dislocation
kink band; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/2106608.pdf Link otwiera się w nowym oknie
Opis:: In this paper, the macroscopic and microscopic deformation caused by sodium penetration in the carbon cathode has been studied during aluminum electrolysis. The distributions of sodium concentration in the carbon cathode has been measured by SEM-EDS. The microstructure change caused by the gradient of the sodium concentration in the carbon cathode has been studied using transmission electron microscopy (TEM). The results indicate that sodium penetration decreases with the increase of the penetration depth. The stresses caused by the gradient of the sodium concentration result in a remarkable change for the microstructure of the carbon cathode. The formation of dislocations resulting in dislocation arrays and the development of kink band networks bring about material damage growth and possibly subsequent weakening of the cathode. These results can provide useful information that is helpful in developing an improved comprehending of the microscopic deformation mechanism of the carbon cathode during aluminum electrolysis.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Synthesis of the Nickel-Cobalt-Manganese Cathode Material Using Recycled Nickel as Precursors from Secondary Batteries
Autorzy:: Jung, Hang-Chul
Han, Deokhyun
Kim, Dae-Weon
Ahn, Byungmin
Tematy:: secondary battery
nickel
recycling
Taylor reaction
cathode materials; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/2049177.pdf Link otwiera się w nowym oknie
Opis:: As the amount of high-capacity secondary battery waste gradually increased, waste secondary batteries for industry (high-speed train & HEV) were recycled and materialization studies were carried out. The precipitation experiment was carried out with various conditions in the synthesis of LiNi0.6Co0.2Mn0.2O2 material using a Taylor reactor. The raw material used in this study was a leaching solution generated from waste nickel-based batteries. The nickel-cobalt-manganese (NCM) precursor was prepared by the Taylor reaction process. Material analysis indicated that spherical powder was formed, and the particle size of the precursor was decreased as the reaction speed was increased during the preparation of the NCM. The spherical NCM powder having a particle size of 10 μm was synthesized using reaction conditions, stirring speed of 1000 rpm for 24 hours. The NCM precursor prepared by the Taylor reaction was synthesized as a cathode material for the LIB, and then a coin-cell was manufactured to perform the capacity evaluation.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: A Novel Process for Recovery of Key Elements from Commercial Cathode Material of End-of-Life Lithium-Ion Battery
Autorzy:: Wang, Jei-Pil
Tematy:: lithium manganese oxide
cathode material
thermal reaction
lithium; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/2049270.pdf Link otwiera się w nowym oknie
Opis:: A novel process to recover lithium and manganese oxides from a cathode material (LiMn2O4) of spent lithium-ion battery was attempted using thermal reaction with hydrogen gas at elevated temperatures. A hydrogen gas as a reducing agent was used with LiMn2O4 powder and it was found that separation of Li2O and MnO was taken place at 1050°C. The powder after thermal process was washed away with distilled water and only lithium was dissolved in the water and manganese oxide powder left behind. It was noted that manganese oxide powder was found to be 98.20 wt.% and the lithium content in the solution was 1,928 ppm, respectively.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Cold field-emission cathode noise analysis
Autorzy:: Knápek, A.
Grmela, L.
Šikula, J.
Šik, O.
Tematy:: cold field-emission cathode
noise diagnostics
epoxy coating; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/220678.pdf Link otwiera się w nowym oknie
Opis:: Noise diagnostics has been performed on the cold field-emission cathode in high-vacuum. The tested cold fieldemission cathode, based on tungsten wire with ultra-sharp tip coated by epoxy was designed to meet the requirements of transmission electron microscopy, which uses a small and stable source of electrons. Current fluctuations are reduced by improving the structure and fabrication technology. Noise was measured both in time and frequency domains, which gives information about current fluctuations and also about charge transport. Mutual correlation between the noise spectral density, extractor voltage and beam brightness was analyzed.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Li-S battery recycling
Autorzy:: Siczek, Krzysztof
Tematy:: lithium-sulfur battery
recycling
anode
cathode
electrolyte; Pokaż więcej
Wydawca:: Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Powiązania:: https://bibliotekanauki.pl/articles/409532.pdf Link otwiera się w nowym oknie
Opis:: Lithium-ion batteries are not situable for electric vehicles with high millage, military power supplies and fixed power networks. Therefore, the Li-S batteries have been intensively investigated, due to the high capacity, low cost, widespread source, and nontoxicity. The development of Li-S batteries causes increasing need to find the methods for their recycling. Some of them are discussed in the paper. The recycling of Li-S cell relates to its anode, cathode, electrolyte, binder and separator. The Li-S battery should be fully charged before recycling. There are potential methods for recycling of lithium from anodes, especially by re-melting. It is also possible to recycle some materials from the cathodes, especially sulfur by re-melting and graphite by dry crushing, Eco-bat Technologies method or the method investigated by Xiang et al. There is no effective recycling methods for electrolytes, binders and separators. It is necessary to carry out further studies on them.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Analysis of the State of Stress in Cathode Block of an Aluminium Electrolytic Cell During Formation of Connection with the Steel Pin by Cast Iron Pouring
Autorzy:: Piekło, J.
Maj, M.
Tematy:: aluminium electrolytic cell
cathode section
cast iron
FEM calculations; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/352715.pdf Link otwiera się w nowym oknie
Opis:: The article presents various aspects of the analysis of the state of stress in carbon block induced by the effect of temperature when a steel pin is connected to the block by pouring a shaped groove with cast iron. Changes in the temperature and state of stress in the block were examined by FEM (Abaqus program). The numerical model was validated by experimental measurements of pin deflection during pouring of the groove with cast iron.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Environmental Impact Analysis of Waste Lithium-Ion Battery Cathode Recycling
Autorzy:: Xiaodong, Sun
Ishchenko, Vitalii
Tematy:: lithium-ion battery
waste battery
cathode
environmental impact
pollution; Pokaż więcej
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/59114359.pdf Link otwiera się w nowym oknie
Opis:: This study introduces the current status of recycling technology for waste lithium-ion batteries, with a focus on the environmental impact during the recycling process of waste lithium-ion battery cathode materials. Composition of lithium-ion battery was analyzed in order to estimate which components are potentially dangerous to the environment. Heavy metals are main pollutants and change the pH of the environment; also, organic solvent actively reacts with oxidants and reducing agents in the environment. Other parts of waste battery mainly impact an air during the combustion or thermal decomposition generating toxic lithium, cobalt oxides, other gases. Sources of air, water, noise pollution, solid waste, and toxic chemicals generated in the recycling process were identified. Air pollutants generated at every stage of the process of positive electrode materials recycling include dust, acidic gases, and organic gases. The wastewater is generated mainly from the discharge pretreatment and cathode recovery processes (leaching and extraction). Although the wastewater volume is relatively small, its composition is complex, poorly biochemical and toxic (lithium compounds, organic solvents, etc.). In the dismantling process, plastic connectors, circuit boards, high-voltage wiring, powders, collectors and pool electrode material casings are generated as solid waste. Corresponding pollution prevention and control measures are suggested to prevent environmental pollution during the recycling process of waste lithium-ion battery cathode materials.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Electrochemical properties of $C/LiMn_{2}O_{4-y}S_{y}$ (0 ≤ y ≤ 0.1) composite cathode materials
Autorzy:: Piwowarska, Zofia
Dziembaj, Roman
Molenda, Marcin
Drozdek, Marek
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 10.

Tytuł:: Electrochemical methods for the preservation of crustaceous wastes from shellfish processing
Autorzy:: Kuprina, E. E.
Bobylev, V. S.
Kirillov, A. I.
Tematy:: anode fraction
cathode fraction
crustaceans
electrolyzer
preservation of crustaceous wastes; Pokaż więcej
Wydawca:: Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Powiązania:: https://bibliotekanauki.pl/articles/1035216.pdf Link otwiera się w nowym oknie
Opis:: The developed environmentally safe electrochemical methods for the preservation of crustaceous wastes from shellfish processing can be used both at sea and ashore. This technology makes possible long-term storage of crustaceous waste at unnormalized positive temperatures with simultaneous shell deproteinization. Due to the mild exposure conditions the electrochemical methods allow to preserve the high quality of valuable components (chitin, proteins, lipids, carotinoids and others) and to carry out comprehensive processing. The preservation of expired crustaceous waste with increased original bacterial content was found possible.
Dostawca treści:: Biblioteka Nauki

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