東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Multi-Faceted Roles of Lithium Metal...

Yuan, Xintong,

Linked to FindBook

Google Book

Amazon

博客來

Multi-Faceted Roles of Lithium Metal in Batteries and Beyond /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Multi-Faceted Roles of Lithium Metal in Batteries and Beyond // Xintong Yuan.
Author:	Yuan, Xintong,
Description:	1 electronic resource (158 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 86-10, Section: B.
Contained By:	Dissertations Abstracts International86-10B.
Subject:	Chemical engineering. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=31939289
ISBN:	9798314811771

Multi-Faceted Roles of Lithium Metal in Batteries and Beyond /
Yuan, Xintong,

Multi-Faceted Roles of Lithium Metal in Batteries and Beyond /Xintong Yuan. - 1 electronic resource (158 pages)

Source: Dissertations Abstracts International, Volume: 86-10, Section: B.

Electrochemical energy conversion and storage is critical for advancing vehicle electrification and sustainability of essential commodity chemicals. In pursuit of these goals, I delved progressively deeper into the foundational research of batteries and beyond: (1) pioneering novel methodologies to fundamentally understand lithium (Li) metal deposition, (2) regulating electrolyte decomposition to enhance Li metal batteries (LMBs) performance, and (3) expanding the technology's applicability to make impact beyond batteries.I have revealed the intrinsic morphology of electrodeposited Li metal to be a non-dendritic rhombic dodecahedron, which defies conventional expectations yet aligns with the theoretical prediction. Li deposition is a process in which Li-ions are reduced to metallic form at the electrode, which plays a crucial role for LMBs, because the reversibility of deposition morphology directly determines the cycling performance and safety of the battery. However, the simultaneous formation of a surface corrosion film termed the solid electrolyte interphase (SEI) complicates the deposition process, which underpins our poor understanding of Li metal electrodeposition. I creatively integrated the classical electrochemical method, ultramicroelectrode geometry, and an emerging electron microscopy technique, cryogenic electron microscopy (cryo-EM), to decouple Li deposition from the SEI growth and capture the corresponding nanostructure of Li. This discovery has significant implications for LMBs, as it suggests SEI influence can be effectively mitigated to achieve desired deposition morphologies. Besides enhancing our understanding of Li deposition, this work opens new opportunities to explore how reactive metal deposition fundamentally proceeds without the influence of corrosion film, thereby regulating reversibility of metal deposition to optimize the performance of metal batteries.In addition to deposition morphology, the properties of the SEI also influence the performance of LMBs, as the SEI governs the transportation of Li-ion during cycling. Since the SEI formation results from electrolyte decomposition influenced by electric fields, I systematically examined effects of both electrolyte decomposition and electric fields on SEI formation, progressing from the bulk electrolyte to the electrode surface. I worked with colleagues to quantify reactions driving SEI formation and to determine the decomposition rates of individual electrolyte components, which guided our efforts to design and regulate their decomposition. Furthermore, I emphasized the importance of electric field to further fine-tune the formation of favorable SEI to improve battery performance.

English

ISBN: 9798314811771Subjects--Topical Terms:

560457
Chemical engineering.
Subjects--Index Terms:

Li metal batteries

Multi-Faceted Roles of Lithium Metal in Batteries and Beyond /
LDR:04176nmm a22004333i 4500 001 2434855
005 20251001062540.5
006 m o d
007 cr|nu||||||||
008 261011s2025 miu||||||m |||||||eng d
020 $a 9798314811771
035 $a (MiAaPQD)AAI31939289
035 $a AAI31939289
040 $a MiAaPQD $b eng $c MiAaPQD $e rda
100 1 $a Yuan, Xintong, $e author. $3 3824983
245 1 0 $a Multi-Faceted Roles of Lithium Metal in Batteries and Beyond / $c Xintong Yuan.
264 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2025
300 $a 1 electronic resource (158 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Dissertations Abstracts International, Volume: 86-10, Section: B.
500 $a Advisors: Li, Yuzhang Committee members: Kaner, Richard B.; Morales-Guio, Carlos Gilber; Sautet, Philippe.
502 $b Ph.D. $c University of California, Los Angeles $d 2025.
520 $a Electrochemical energy conversion and storage is critical for advancing vehicle electrification and sustainability of essential commodity chemicals. In pursuit of these goals, I delved progressively deeper into the foundational research of batteries and beyond: (1) pioneering novel methodologies to fundamentally understand lithium (Li) metal deposition, (2) regulating electrolyte decomposition to enhance Li metal batteries (LMBs) performance, and (3) expanding the technology's applicability to make impact beyond batteries.I have revealed the intrinsic morphology of electrodeposited Li metal to be a non-dendritic rhombic dodecahedron, which defies conventional expectations yet aligns with the theoretical prediction. Li deposition is a process in which Li-ions are reduced to metallic form at the electrode, which plays a crucial role for LMBs, because the reversibility of deposition morphology directly determines the cycling performance and safety of the battery. However, the simultaneous formation of a surface corrosion film termed the solid electrolyte interphase (SEI) complicates the deposition process, which underpins our poor understanding of Li metal electrodeposition. I creatively integrated the classical electrochemical method, ultramicroelectrode geometry, and an emerging electron microscopy technique, cryogenic electron microscopy (cryo-EM), to decouple Li deposition from the SEI growth and capture the corresponding nanostructure of Li. This discovery has significant implications for LMBs, as it suggests SEI influence can be effectively mitigated to achieve desired deposition morphologies. Besides enhancing our understanding of Li deposition, this work opens new opportunities to explore how reactive metal deposition fundamentally proceeds without the influence of corrosion film, thereby regulating reversibility of metal deposition to optimize the performance of metal batteries.In addition to deposition morphology, the properties of the SEI also influence the performance of LMBs, as the SEI governs the transportation of Li-ion during cycling. Since the SEI formation results from electrolyte decomposition influenced by electric fields, I systematically examined effects of both electrolyte decomposition and electric fields on SEI formation, progressing from the bulk electrolyte to the electrode surface. I worked with colleagues to quantify reactions driving SEI formation and to determine the decomposition rates of individual electrolyte components, which guided our efforts to design and regulate their decomposition. Furthermore, I emphasized the importance of electric field to further fine-tune the formation of favorable SEI to improve battery performance.
546 $a English
590 $a School code: 0031
650 4 $a Chemical engineering. $3 560457
650 4 $a Materials science. $3 543314
650 4 $a Nanoscience. $3 587832
653 $a Li metal batteries
653 $a Metal deposition
653 $a Solid electrolyte interphase
653 $a Electrochemical energy
653 $a Nanostructure
690 $a 0542
690 $a 0565
690 $a 0794
710 2 $a University of California, Los Angeles. $b Chemical Engineering 0294. $e degree granting institution. $3 3822425
720 1 $a Li, Yuzhang $e degree supervisor.
773 0 $t Dissertations Abstracts International $g 86-10B.
790 $a 0031
791 $a Ph.D.
792 $a 2025
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=31939289