FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1650006648> ?p ?o ?g. }

• W1650006648 abstract "This dissertation describes studies of the crystal structure of disordered carbons and the electrochemical intercalation of lithium in the disordered carbons. One of the most important applications of carbons is as an electrode material in rechargable lithium-ion (rocking chair) battery systems. These usually use carbon as the anode and thus depend on the related behavior of lithium intercalation in carbons. An important quantity for measuring the performance of such a battery is the maximum reversible capacity, which strongly depends on the carbon crystal structure. In order to study the structure of disordered carbons, we have developed a structural model for disordered carbons and a corresponding automated structure refinement program for X-ray powder diffraction patterns of disordered carbons. These diffraction patterns can be complex to interpret because of the complicated nature of layer stacking in disordered carbons. The structural model used in the refinement program is divided into two cases, the one-layer model (for highly disordered carbons) and the two-layer model (for graphitic carbons). Some of the important parameters of the model are, for example, (1) the probability P of finding a random shift between layers, which is large for disordered carbons like coke and carbon fibers, small for heat treated synthetic graphitic carbons and practically zero for natural graphite; (2) Pt, the probability of finding a local 3R stacking fault in graphitic carbons; (3) 1 g (only in the one layer model), the percentage of unorganized carbon in disordered carbons; (4) (, a dimensionless parameter for measuring in-plane strain in the carbon layer; (5) the finite size of carbon grains La (parallel to the layers) and LC (perpendicular to the layers); (6) fluctuations 4 in the spacing between adjacent layers; (7) the average lattice constants, c and a; (8) the constant background and other important quantities. The program minimizes the difference between the observed and calculated diffraction profiles in a least-squares sense by optimizing model parameters analogously to the popular Rietveld refinement method. Unlike the Rietveld method, which is designed for crystalline materials, this program allows the quantification of the finite size, strain and disorder present in disordered carbon fibers and cokes. We have used our model and program ' to fit over 50 carbons from Canadian, US and Japanese sources. These include cokes, heat treated cokes, fibers, synthetic graphites and mesocarbon etc.. The structural data have been correlated to the maximum reversible capacity, x,,,, of Li/Li,C6 electrochemical cells to determine how the carbon structure influences the intercalation of lithium. A phenomenological picture which explains the trends in the data has been proposed, which allows us to predict x,,, for any carbon, given its structural parameters. We are able to understand qualitatively the variation in x,, with heat treatment temperature and with the types of disorder present in both hard and soft carbons. A general statement about which classes of carbons are most suitable as anodes in lithium-ion cells has been made in the conclusion and some suggestions for future research directions are given. 'This program is available from the author" @default.
• W1650006648 created "2016-06-24" @default.
• W1650006648 creator A5072233763 @default.
• W1650006648 date "1993-01-01" @default.
• W1650006648 modified "2023-09-28" @default.
• W1650006648 title "DISORDERED CARBONS AND BATTERY APPLICATIONS" @default.
• W1650006648 cites W2010784454 @default.
• W1650006648 cites W2043534269 @default.
• W1650006648 cites W2067722023 @default.
• W1650006648 cites W2145884973 @default.
• W1650006648 cites W572218149 @default.
• W1650006648 hasPublicationYear "1993" @default.
• W1650006648 type Work @default.
• W1650006648 sameAs 1650006648 @default.
• W1650006648 citedByCount "1" @default.
• W1650006648 crossrefType "dissertation" @default.
• W1650006648 hasAuthorship W1650006648A5072233763 @default.
• W1650006648 hasConcept C104779481 @default.
• W1650006648 hasConcept C115624301 @default.
• W1650006648 hasConcept C121332964 @default.
• W1650006648 hasConcept C127413603 @default.
• W1650006648 hasConcept C134018914 @default.
• W1650006648 hasConcept C137824038 @default.
• W1650006648 hasConcept C140205800 @default.
• W1650006648 hasConcept C147789679 @default.
• W1650006648 hasConcept C159985019 @default.
• W1650006648 hasConcept C163258240 @default.
• W1650006648 hasConcept C171250308 @default.
• W1650006648 hasConcept C17525397 @default.
• W1650006648 hasConcept C178790620 @default.
• W1650006648 hasConcept C179104552 @default.
• W1650006648 hasConcept C185592680 @default.
• W1650006648 hasConcept C192562407 @default.
• W1650006648 hasConcept C2778541603 @default.
• W1650006648 hasConcept C2779197387 @default.
• W1650006648 hasConcept C2779698641 @default.
• W1650006648 hasConcept C30080830 @default.
• W1650006648 hasConcept C33347731 @default.
• W1650006648 hasConcept C42360764 @default.
• W1650006648 hasConcept C555008776 @default.
• W1650006648 hasConcept C71924100 @default.
• W1650006648 hasConcept C8010536 @default.
• W1650006648 hasConcept C89395315 @default.
• W1650006648 hasConcept C97355855 @default.
• W1650006648 hasConceptScore W1650006648C104779481 @default.
• W1650006648 hasConceptScore W1650006648C115624301 @default.
• W1650006648 hasConceptScore W1650006648C121332964 @default.
• W1650006648 hasConceptScore W1650006648C127413603 @default.
• W1650006648 hasConceptScore W1650006648C134018914 @default.
• W1650006648 hasConceptScore W1650006648C137824038 @default.
• W1650006648 hasConceptScore W1650006648C140205800 @default.
• W1650006648 hasConceptScore W1650006648C147789679 @default.
• W1650006648 hasConceptScore W1650006648C159985019 @default.
• W1650006648 hasConceptScore W1650006648C163258240 @default.
• W1650006648 hasConceptScore W1650006648C171250308 @default.
• W1650006648 hasConceptScore W1650006648C17525397 @default.
• W1650006648 hasConceptScore W1650006648C178790620 @default.
• W1650006648 hasConceptScore W1650006648C179104552 @default.
• W1650006648 hasConceptScore W1650006648C185592680 @default.
• W1650006648 hasConceptScore W1650006648C192562407 @default.
• W1650006648 hasConceptScore W1650006648C2778541603 @default.
• W1650006648 hasConceptScore W1650006648C2779197387 @default.
• W1650006648 hasConceptScore W1650006648C2779698641 @default.
• W1650006648 hasConceptScore W1650006648C30080830 @default.
• W1650006648 hasConceptScore W1650006648C33347731 @default.
• W1650006648 hasConceptScore W1650006648C42360764 @default.
• W1650006648 hasConceptScore W1650006648C555008776 @default.
• W1650006648 hasConceptScore W1650006648C71924100 @default.
• W1650006648 hasConceptScore W1650006648C8010536 @default.
• W1650006648 hasConceptScore W1650006648C89395315 @default.
• W1650006648 hasConceptScore W1650006648C97355855 @default.
• W1650006648 hasLocation W16500066481 @default.
• W1650006648 hasOpenAccess W1650006648 @default.
• W1650006648 hasPrimaryLocation W16500066481 @default.
• W1650006648 hasRelatedWork W1565131372 @default.
• W1650006648 hasRelatedWork W1971792746 @default.
• W1650006648 hasRelatedWork W1980335288 @default.
• W1650006648 hasRelatedWork W1980701942 @default.
• W1650006648 hasRelatedWork W1995895154 @default.
• W1650006648 hasRelatedWork W2002415782 @default.
• W1650006648 hasRelatedWork W2006762820 @default.
• W1650006648 hasRelatedWork W2013730815 @default.
• W1650006648 hasRelatedWork W2015454354 @default.
• W1650006648 hasRelatedWork W2019761459 @default.
• W1650006648 hasRelatedWork W2031427584 @default.
• W1650006648 hasRelatedWork W2038142675 @default.
• W1650006648 hasRelatedWork W2089428417 @default.
• W1650006648 hasRelatedWork W2114216155 @default.
• W1650006648 hasRelatedWork W2187494063 @default.
• W1650006648 hasRelatedWork W2315699537 @default.
• W1650006648 hasRelatedWork W2378561535 @default.
• W1650006648 hasRelatedWork W2498762126 @default.
• W1650006648 hasRelatedWork W2592308558 @default.
• W1650006648 hasRelatedWork W2624860987 @default.
• W1650006648 isParatext "false" @default.
• W1650006648 isRetracted "false" @default.
• W1650006648 magId "1650006648" @default.
• W1650006648 workType "dissertation" @default.