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Thematische Bibliographien / Anode Li

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Auswahl der wissenschaftlichen Literatur zum Thema „Anode Li“

Autor: Grafiati

Veröffentlicht am 25. Mai 2024

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Dissertationen zum Thema "Anode Li"

1

Cen, Yinjie. "Si/C Nanocomposites for Li-ion Battery Anode." Digital WPI, 2017. https://digitalcommons.wpi.edu/etd-dissertations/468.

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The demand for high performance Lithium-ion batteries (LIBs) is increasing due to widespread use of portable devices and electric vehicles. Silicon (Si) is one of the most attractive candidate anode materials for the next generation LIBs because of its high theoretical capacity (3,578 mAh/g) and low operation potential (~0.4 V vs Li+/Li). However, the high volume change (>300%) during Lithium ion insertion/extraction leads to poor cycle life. The goal of this work is to improve the electrochemical performance of Si/C composite anode in LIBs. Two strategies have been employed: to explore spat

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2

Gullbrekken, Øystein. "Thermal characterisation of anode materials for Li-ion batteries." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for materialteknologi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-19224.

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Coin cells with lithium and graphite electrodes were assembled using different combinations of graphite material and electrolyte. Specifically, three commercially available graphite materials and five electrolyte compositions were studied. The cells were discharge-charge cycled with varying parameters in order to determine the performance of the graphite materials and electrolytes. Particularly, a temperature chamber was employed to cycle some cells at temperatures between 0 and 40°C to find the significance of the electrolyte composition and graphite material on the cell performance at t

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3

FUGATTINI, Silvio. "Binder-free porous germanium anode for Li-ion batteries." Doctoral thesis, Università degli studi di Ferrara, 2019. http://hdl.handle.net/11392/2488081.

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To develop high energy density lithium ion batteries, the use of new electrode materials is required. Germanium is among the possible alternatives to the most commonly used anode, graphite (372 mAh/g), thanks to its four-times higher theoretical gravimetric capacity (1600 mAh/g). Here is presented a two-step method to produce a binder-free porous germanium anode, depositing the semiconductor on metallic substrates by means of Plasma Enhanced Chemical Vapour Deposition (PECVD) and subsequently performing an electrochemical etching with hydrofluoric acid to create a porous structure. The Ge-base

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4

Janíček, Zdeněk. "Stabilita katodového materiálu pro LI-ion akumulátory." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-220974.

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This diploma thesis focuses on study of positive electrode materials for Li-Ion batteries. Our aim are intercalation materials whose are really perspective materials whose are widely used in this case. The theoretical part of my thesis focus on basic study of Li-ion batteries and their parameters. We studied charging and discharging processes. AFM and SEM were used as additional techniques for study LiCoO2 a Li0,975K0,025CoO2. We tested lifetime and stability of electrode as a perspective material for electrode for Li-ion batteries.

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5

Buiel, Edward. "Lithium insertion in hard carbon anode materials for Li-ion batteries." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape15/PQDD_0013/NQ36573.pdf.

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6

Mayo, Martin. "Ab initio anode materials discovery for Li- and Na-ion batteries." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/270545.

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This thesis uses first principles techniques, mainly the ab initio random structure searching method (AIRSS), to study anode materials for lithium- and sodium- ion batteries (LIBs and NIBs, respectively). Initial work relates to a theoretical structure prediction study of the lithium and sodium phosphide systems in the context of phosphorus anodes as candidates for LIBs and NIBs. The work reveals new Li-P and Na-P phases, some of which can be used to better interpret previous experimental results. By combining AIRSS searches with a high-throughput screening search from structures in the Inorga

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7

Hapuarachchi, Sashini Neushika Sue. "Fabrication and characterization of silicon based electrodes for Li-ion batteries." Thesis, Queensland University of Technology, 2021. https://eprints.qut.edu.au/207430/1/Sashini_Hapuarachchi_Thesis.pdf.

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This thesis presents the synthesis and characterization of silicon electrodes to address critical challenges in development of high capacity Li-ion batteries. Failure mechanisms of silicon electrodes are investigated at different material length scales and effective strategies are proposed to overcome them, which will benefit in developing high performance next-generation rechargeable Li-ion batteries.

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8

Vallachira, Warriam Sasikumar Pradeep. "Study of Silicon Oxycarbide(SiOC) as Anode Materials for Li-ion Batteries." Doctoral thesis, Università degli studi di Trento, 2013. https://hdl.handle.net/11572/368129.

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The principal object of this thesis is the investigation of silicon oxycarbide (SiOC) ceramics as anode material for Li-ion batteries. The investigated materials are prepared by cross linking commercial polymer siloxanes via hydrosylilation reactions or hybrid alkoxide precursors via sol-gel. The cross linked polymer networks are then converted in to ceramic materials by a pyrolysis process in controlled argon atmosphere at 800-1300 Â°C. In details the influence of carbon content on lithium storage properties is addressed for SiOC with the same O/Si atomic ratio of about 1. Detailed structural

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9

Vallachira, Warriam Sasikumar Pradeep Pradeep. "Study of Silicon Oxycarbide(SiOC) as Anode Materials for Li-ion Batteries." Doctoral thesis, University of Trento, 2013. http://eprints-phd.biblio.unitn.it/1112/1/PhD_Thesis_Vallachira_Pradeep.pdf.

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The principal object of this thesis is the investigation of silicon oxycarbide (SiOC) ceramics as anode material for Li-ion batteries. The investigated materials are prepared by cross linking commercial polymer siloxanes via hydrosylilation reactions or hybrid alkoxide precursors via sol-gel. The cross linked polymer networks are then converted in to ceramic materials by a pyrolysis process in controlled argon atmosphere at 800-1300 °C. In details the influence of carbon content on lithium storage properties is addressed for SiOC with the same O/Si atomic ratio of about 1. Detailed structural

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10

VERSACI, DANIELE. "Materials for high energy Li-ion and post Li-ion batteries." Doctoral thesis, Politecnico di Torino, 2021. http://hdl.handle.net/11583/2896992.

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